| acacia |
Acacia spp. |
1 |
| acorn-plum gall |
Amphibolips quercusjuglans |
1 |
| African Elephant |
Loxodonta africana |
1 |
| African juniper |
Juniperus procera |
4 |
| agave |
Agave spp. |
1 |
| air pollutants |
|
10 |
| air-potato |
Dioscorea bulbifera |
4 |
| Alaska-cedar |
Chamaecyparis nootkatensis |
1 |
| alderleaf mountain mahogany |
Cercocarpus montanus |
1 |
| alkali sacaton |
Sporobolus airoides |
1 |
| Allegheny mound ant |
Formica exsectoides |
2 |
| alligatorweed |
Alternanthera philoxeroides |
3 |
| alpine sawsepal penstemon |
Penstemon glaber var. alpinus |
2 |
| alsike clover |
Trifolium hybridum |
1 |
| Amanita mushroom |
Amanita spp. |
1 |
| ambrosia beetle |
Euplatypus compositus |
2 |
| American beaver |
Castor canadensis |
10 |
| American bison |
Bison bison |
4 |
| American black nightshade |
Solanum americanum |
1 |
| American chestnut |
Castanea dentata |
6 |
| American cliff swallow |
Petrochelidon pyrrhonota |
1 |
| American dwarf mistletoe |
Arceuthobium americanum |
16 |
| American elm |
Ulmus americana |
2 |
| American hawthorn rust |
Gymnosporangium globosum |
1 |
| American pasqueflower |
Pulsatilla patens |
1 |
| American plum borer |
Euzophera semifuneralis |
1 |
| American robin |
Turdus migratorius |
2 |
| American white pelican |
Pelecanus erythrorhynchos |
3 |
| Amur honeysuckle |
Lonicera maackii |
3 |
| Amur peppervine |
Ampelopsis brevipedunculata |
7 |
| anchor stink bug |
Stiretrus anchorago |
1 |
| annosum root disease |
Heterobasidion annosum |
23 |
| anthracnose |
Colletotrichum acutatum |
1 |
| ants |
Formica spp. |
1 |
| ants |
|
1 |
| aphids |
|
3 |
| arborvitae leafminer |
Argyresthia thuiella |
1 |
| Arizona fescue |
Festuca arizonica |
1 |
| Armillaria root rot |
Armillaria gallica |
2 |
| Armillaria root rot |
Armillaria mellea |
5 |
| Armillaria root rot |
Armillaria solidipes |
10 |
| Armillaria root rot |
Armillaria tabescens |
1 |
| Armillaria root rots |
Armillaria spp. |
17 |
| arrowfeather threeawn |
Aristida purpurascens |
3 |
| art work |
|
2 |
| artist's conk |
Ganoderma applanatum |
9 |
| ash |
Fraxinus spp. |
1 |
| ash and privet borer |
Tylonotus bimaculatus |
1 |
| ash borer |
Podosesia syringae |
5 |
| ash heart rot |
Perenniporia fraxinophila |
9 |
| ash seed weevils |
Lignyodes spp. |
1 |
| ash yellows phytoplasma |
Candidatus Phytoplasma fraxini |
8 |
| Asian gypsy moth |
Lymantria dispar asiatica |
4 |
| Asian longhorned beetle |
Anoplophora glabripennis |
18 |
| Asiatic dayflower |
Commelina communis |
2 |
| aspen leafminer |
Phyllocnistis populiella |
3 |
| aspen root girdler |
Agrilus horni |
3 |
| aspen/poplar |
Populus spp. |
14 |
| Atamasco lily |
Zephyranthes atamasca |
1 |
| Atlantic poison-oak |
Toxicodendron pubescens |
1 |
| Atropellis canker |
Atropellis piniphila |
9 |
| Austrian fieldcress |
Rorippa austriaca |
1 |
| autumn-olive |
Elaeagnus umbellata |
14 |
| avalanches |
|
1 |
| azalea caterpillar |
Datana major |
1 |
| baccharis borer |
Oidaematophorus balanotes |
2 |
| bacterial leaf scorch |
Xylella fastidiosa |
1 |
| bacterial necrosis of giant cactus |
Erwinia carnegieana |
10 |
| bacterial wetwood |
Enterobacter nimipressuralis |
2 |
| bagworm |
Thyridopteryx ephemeraeformis |
5 |
| bald eagle |
Haliaeetus leucocephalus |
12 |
| baldcypress |
Taxodium distichum |
3 |
| baldfaced hornet |
Dolichovespula maculata |
2 |
| balsam poplar |
Populus balsamifera |
1 |
| balsam twig aphid |
Mindarus abietinus |
2 |
| balsam woolly adelgid |
Adelges piceae |
14 |
| bamboo |
Bambusa spp. |
1 |
| bananas |
Musa spp. |
1 |
| baobab tree/ monkey bread tree |
Adansonia digitata |
1 |
| barberry |
Mahonia spp. |
2 |
| bark beetles |
|
1 |
| barn owl |
Tyto alba |
3 |
| barred owl |
Strix varia |
2 |
| barrel cactus |
Ferocactus spp. |
1 |
| basal cankers |
|
3 |
| basal wound |
|
1 |
| bashful wakerobin |
Trillium catesbaei |
2 |
| basswood leafminer |
Baliosus nervosa |
4 |
| basswood leafroller |
Pantographa limata |
1 |
| bear |
Ursus spp. |
7 |
| beardlip penstemon |
Penstemon barbatus |
2 |
| Becker's white |
Pontia beckerii |
1 |
| beech |
Fagus spp. |
1 |
| beech bark disease |
Nectria coccinea |
6 |
| beech scale |
Cryptococcus fagisuga |
7 |
| belted kingfisher |
Ceryle alcyon |
1 |
| big periwinkle |
Vinca major |
6 |
| bighorn sheep |
Ovis canadensis |
13 |
| bigtop lovegrass |
Eragrostis hirsuta |
1 |
| birch |
Betula spp. |
2 |
| birch cambium miner |
Phytobia betulivora |
1 |
| birch conk |
Piptoporus betulinus |
2 |
| birch leafminer |
Fenusa pusilla |
4 |
| birch leafroller |
Epinotia solandriana |
1 |
| birch skeletonizer |
Bucculatrix canadensisella |
1 |
| birdsrape mustard |
Brassica rapa |
1 |
| bitter cherry |
Prunus emarginata |
1 |
| bitter rot and anthracnose |
Colletotrichum gloeosporioides |
1 |
| black ash decline |
|
3 |
| black bear |
Ursus americanus |
4 |
| black cherry |
Prunus serotina |
2 |
| black cottonwood |
Populus balsamifera ssp. trichocarpa |
1 |
| black hawthorn |
Crataegus douglasii |
2 |
| black knot |
Apiosporina morbosa |
5 |
| black locust |
Robinia pseudoacacia |
1 |
| black pineleaf scale |
Dynaspidiotus californica |
4 |
| black rot |
Ceratocystis fimbriata |
9 |
| black senna |
Seymeria cassioides |
2 |
| black spruce |
Picea mariana |
1 |
| black stain root disease |
Ophiostoma wageneri |
3 |
| black turpentine beetle |
Dendroctonus terebrans |
3 |
| black twig borer |
Xylosandrus compactus |
1 |
| black widow spider |
Latrodectus mactans |
1 |
| black willow |
Salix nigra |
2 |
| black-backed woodpecker |
Picoides arcticus |
2 |
| black-billed magpie |
Pica pica |
1 |
| black-crowned night-heron |
Nycticorax nycticorax |
1 |
| black-eyed susan |
Rudbeckia hirta |
1 |
| black-necked stilt |
Himantopus mexicanus |
3 |
| blackgum |
Nyssa sylvatica |
1 |
| blackheaded ash sawfly |
Tethida barda |
1 |
| blackheaded pine sawfly |
Neodiprion excitans |
3 |
| blite goosefoot |
Chenopodium capitatum |
2 |
| bloodroot |
Sanguinaria canadensis |
7 |
| blue elderberry |
Sambucus nigra ssp. cerulea |
1 |
| blue grouse |
Dendragapus obscurus |
3 |
| Blue Ridge horsebalm |
Collinsonia serotina |
1 |
| blue spruce |
Picea pungens |
7 |
| blue-eyed grass |
Sisyrinchium spp. |
3 |
| blue-winged teal |
Anas discors |
2 |
| bluebead-lily |
Clintonia borealis |
2 |
| bluebunch wheatgrass |
Pseudoroegneria spicata ssp. spicata |
1 |
| blueflag iris |
Iris versicolor |
1 |
| bluejoint reedgrass |
Calamagrostis canadensis |
2 |
| bluntseed sweetroot |
Osmorhiza depauperata |
1 |
| bobcat |
Lynx rufus |
3 |
| Bollean mistletoe |
Phoradendron bolleanum |
1 |
| Bonneville shootingstar |
Dodecatheon conjugens |
1 |
| boreal owl |
Aegolius funereus |
3 |
| Botryosphaeria canker |
Botryosphaeria dothidea |
2 |
| bottomland hardwoods |
|
1 |
| bouncingbet |
Saponaria officinalis |
1 |
| boxelder bug |
Boisea trivittata |
1 |
| boxelder twig borer |
Proteoteras willingana |
1 |
| bracing |
|
1 |
| brackenfern |
Pteridium aquilinum |
3 |
| bracted lousewort |
Pedicularis bracteosa |
2 |
| bracted plantain |
Plantago aristata |
2 |
| branch union |
|
1 |
| Brazilian peppertree |
Schinus terebinthifolius |
4 |
| Brazilian vervain |
Verbena incompta |
1 |
| bridge |
|
1 |
| bristlecone pine |
Pinus aristata |
3 |
| broadbeard beardtongue |
Penstemon angustifolius |
2 |
| broadleaf lupine |
Lupinus latifolius |
1 |
| broadleaf plantain |
Plantago major |
1 |
| bronze birch borer |
Agrilus anxius |
7 |
| bronze leaf disease |
Apioplagiostoma populi |
6 |
| bronze poplar borer |
Agrilus liragus |
4 |
| brook trout |
Salvelinus fontinalis |
1 |
| broomsedge bluestem |
Andropogon virginicus |
4 |
| brown felt blight |
Herpotrichia juniperi |
1 |
| brown spot needle blight of pine |
Mycosphaerella dearnessii |
9 |
| brown tree snake |
Boiga irregularis |
1 |
| buckwheat tree |
Cliftonia monophylla |
1 |
| building |
|
3 |
| bull thistle |
Cirsium vulgare |
2 |
| bullnettle |
Cnidoscolus stimulosus |
1 |
| bur oak |
Quercus macrocarpa |
1 |
| burdock borer |
Papaipema cataphracta |
1 |
| burl and decay |
|
3 |
| bushy waterprimrose |
Ludwigia alternifolia |
1 |
| butterflies, moths or skippers |
Lepidoptera (Order) |
9 |
| butternut |
Juglans cinerea |
1 |
| butternut canker |
Sirococcus clavigignenti-juglandacearum |
20 |
| butternut woolyworm |
Eriocampa juglandis |
1 |
| buttonbush |
Cephalanthus occidentalis |
3 |
| cacti |
|
1 |
| California false-hellebore |
Veratrum californicum |
3 |
| California ground squirrel |
Spermophilus beecheyi |
1 |
| California quail |
Callipepla californica |
1 |
| Callery pear (Bradford pear) |
Pyrus calleryana |
13 |
| cambium miners |
Phytobia spp. |
1 |
| camphortree |
Cinnamomum camphora |
4 |
| camphorweed |
Heterotheca subaxillaris |
2 |
| Canada goose |
Branta canadensis |
2 |
| Canada toadflax |
Nuttallanthus canadensis |
2 |
| Canadian lousewort |
Pedicularis canadensis |
3 |
| canker |
|
12 |
| canker rot |
Phellinus everhartii |
1 |
| cardinalflower |
Lobelia cardinalis |
1 |
| Carolina buckthorn |
Frangula caroliniana |
1 |
| Carolina falsedandelion |
Pyrrhopappus carolinianus |
4 |
| Carolina larkspur |
Delphinium carolinianum ssp. virescens |
2 |
| Carolina rose |
Rosa carolina |
2 |
| carpenter ants |
Camponotus spp. |
5 |
| carpenterworm |
Prionoxystus robiniae |
10 |
| cat sawbriar |
Smilax glauca |
1 |
| cattle |
Bos spp. |
2 |
| cecropia moth |
Hyalophora cecropia |
2 |
| cedar bark beetles |
Phloeosinus spp. |
2 |
| cedar brown pocket rot |
Postia sericeomollis |
1 |
| cedar waxwing |
Bombycilla cedrorum |
5 |
| cedar-apple rust |
Gymnosporangium juniperi-virginianae |
1 |
| Cenangium canker |
Cenangium singulare |
1 |
| Cenangium cankers |
Cenangium spp. |
3 |
| Cenangium limb canker |
Cenangium ferruginosum |
2 |
| ceramic parchment |
Xylobolus frustulatus |
1 |
| Cercomegistid mite |
|
1 |
| cerulean warbler |
Setophaga cerulea |
1 |
| charcoal |
|
1 |
| cheatgrass |
Bromus tectorum |
1 |
| checkered beetle |
Thanasimus dubius |
2 |
| chemicals |
|
11 |
| Cherokee rose |
Rosa laevigata |
1 |
| cherry scallop shell moth |
Rheumaptera prunivorata |
3 |
| cherrybark oak |
Quercus pagoda |
11 |
| chestnut blight or canker |
Cryphonectria parasitica |
10 |
| chestnut timberworm |
Melittomma sericeum |
2 |
| Chickasaw plum |
Prunus angustifolia |
1 |
| chicken (domestic) |
Gallus gallus (domestic type) |
1 |
| chinaberry |
Melia azedarach |
14 |
| Chinese parasoltree |
Firmiana simplex |
8 |
| Chinese privet |
Ligustrum sinense |
11 |
| Chinese silvergrass |
Miscanthus sinensis |
13 |
| Chinese tallowtree |
Triadica sebifera |
11 |
| Chinese wisteria |
Wisteria sinensis |
4 |
| Chinese yam |
Dioscorea polystachya |
3 |
| chipmunk |
Tamias spp. |
1 |
| chipping |
|
1 |
| chocolate vine |
Akebia quinata |
6 |
| Christmas fern |
Polystichum acrostichoides |
2 |
| cicada killer |
Sphecius speciosus |
1 |
| cicadas |
|
2 |
| cinnamon teal |
Anas cyanoptera |
2 |
| Clark's nutcracker |
Nucifraga columbiana |
1 |
| climbing hempweed |
Mikania scandens |
1 |
| clinker polypore |
Inonotus obliquus |
12 |
| closed bottle gentian |
Gentiana andrewsii |
2 |
| clubmoss |
Lycopodium spp. |
2 |
| coastal bedstraw |
Galium hispidulum |
2 |
| coastal sweetpepperbush |
Clethra alnifolia |
1 |
| coastalplain staggerbush |
Lyonia fruticosa |
1 |
| coconut palm |
Cocos nucifera |
2 |
| cogongrass |
Imperata cylindrica |
15 |
| cold injury (low temperature) |
|
3 |
| Colorado beardtongue |
Penstemon auriberbis |
1 |
| Colorado blue columbine |
Aquilegia caerulea |
1 |
| Colorado false hellebore |
Veratrum tenuipetalum |
1 |
| Columbian monkshood |
Aconitum columbianum |
3 |
| Columbian timber beetle |
Corthylus columbianus |
5 |
| columbine |
Aquilegia spp. |
1 |
| comandra blister rust |
Cronartium comandrae |
26 |
| comfortroot |
Hibiscus aculeatus |
1 |
| common cattail |
Typha latifolia |
1 |
| common chokecherry |
Prunus virginiana |
3 |
| common elderberry |
Sambucus nigra ssp. canadensis |
1 |
| common greenshield lichen |
Flavoparmelia caperata |
2 |
| common hackberry |
Celtis occidentalis |
3 |
| common ladyfern |
Athyrium filix-femina |
1 |
| common milkweed |
Asclepias syriaca |
4 |
| common persimmon |
Diospyros virginiana |
1 |
| common raven |
Corvus corax |
4 |
| common reed |
Phragmites australis |
2 |
| common sagewort |
Artemisia campestris |
1 |
| common sneezeweed |
Helenium autumnale |
1 |
| common snow mold |
Phacidium infestans |
1 |
| common sunflower |
Helianthus annuus |
2 |
| common tansy |
Tanacetum vulgare |
1 |
| common wood nymph |
Cercyonis pegala alope |
2 |
| common woolly sunflower |
Eriophyllum lanatum |
1 |
| common yarrow |
Achillea millefolium |
1 |
| Compartmentalization Of Decay In Trees (CODIT) |
|
36 |
| cone borers |
Eucosma spp. |
3 |
| cone worms |
Dioryctria spp. |
30 |
| conifer sawflies |
Neodiprion spp. |
1 |
| construction |
|
6 |
| containers |
|
2 |
| Contarinia spp. |
Contarinia spp. |
1 |
| cooley spruce gall adelgid |
Adelges cooleyi |
5 |
| coppice |
|
2 |
| coral ardisia |
Ardisia crenata |
8 |
| corkbark fir |
Abies lasiocarpa var. arizonica |
1 |
| cotton square borer |
Strymon melinus |
2 |
| cottonwood borer |
Plectrodera scalator |
8 |
| cottonwood clearwing borer |
Paranthrene dollii |
2 |
| cottonwood leaf beetle |
Chrysomela scripta |
2 |
| cottonwood leaf curl mite |
Aculus lobulifera |
1 |
| cottonwood twig borer |
Gypsonoma haimbachiana |
1 |
| coyote |
Canis latrans |
3 |
| cracks or splits |
|
11 |
| Crandall's beardtongue |
Penstemon crandallii |
1 |
| crayfish |
|
1 |
| creeping barberry |
Mahonia repens |
1 |
| creeping lespedeza |
Lespedeza repens |
1 |
| creeping phlox |
Phlox stolonifera |
3 |
| crested wheatgrass |
Agropyron cristatum |
2 |
| Cronartium gall rusts |
Cronartium spp. |
1 |
| crown gall |
Rhizobium radiobacter |
1 |
| crownvetch |
Securigera varia |
7 |
| Cryptosphaeria canker |
Cryptosphaeria ligniota |
3 |
| Cryptosphaeria cankers |
Cryptosphaeria spp. |
3 |
| cultivation |
|
2 |
| Cyclaneusma needle cast |
Cyclaneusma minus |
1 |
| cylindric sedge |
Cyperus retrorsus |
1 |
| Cylindrocladium root diseases |
Cylindrocladium spp. |
2 |
| cypress |
|
1 |
| cypress aphid |
Cinara cupressivora |
2 |
| Cytospora canker |
Valsa sordida |
5 |
| Cytospora canker of fir |
Cytospora abietis |
2 |
| Cytospora canker of spruce |
Valsa kunzei |
4 |
| Cytospora cankers |
Cytospora spp. |
9 |
| dark-eyed junco |
Junco hyemalis |
2 |
| darkthroat shootingstar |
Dodecatheon pulchellum |
1 |
| Dasyscypha cankers |
Dasyscyphus spp. |
2 |
| Dasyscypha cankers |
Lachnellula spp. |
4 |
| Davidson's penstemon |
Penstemon davidsonii |
1 |
| deadwood and snags |
|
12 |
| debarking weevil |
Hylobius xiaoi |
2 |
| decay |
|
30 |
| deer |
|
2 |
| deerberry |
Vaccinium stamineum |
1 |
| defoliating weevil |
Magdalis gentilis |
1 |
| Delphinella canker |
Delphinella balsameae |
1 |
| Delphinella shoot blight |
Delphinella abietis |
1 |
| Dermea canker |
Dermea pseudotsugae |
2 |
| desert princesplume |
Stanleya pinnata |
1 |
| desert ragwort |
Senecio eremophilus |
1 |
| desication (wind burn) |
|
3 |
| diamondleaf saxifrage |
Saxifraga rhomboidea |
1 |
| dieback |
|
1 |
| Digger pine dwarf mistletoe |
Arceuthobium occidentale |
2 |
| Diplodia blight |
Sphaeropsis sapinea |
18 |
| Diplodia tip blight |
Diplodia pinastri |
1 |
| Diplodia tip blights |
Diplodia spp. |
5 |
| dipterocarp |
|
2 |
| direct seeding |
|
11 |
| dodder |
Cuscuta spp. |
1 |
| dog (domestic) |
Canis lupus familiaris |
1 |
| dogfennel |
Eupatorium capillifolium |
2 |
| dogwood anthracnose |
Discula destructiva |
13 |
| dogwood twig borer |
Oberea tripunctata |
3 |
| Dothichiza canker |
Dothichiza populea |
2 |
| Dothiorella gummosis and rot |
Dothiorella gregaria |
1 |
| Dothistroma needle blight |
Mycosphaerella pini |
3 |
| dotted gayfeather |
Liatris punctata |
1 |
| double-crested cormorant |
Phalacrocorax auritus |
2 |
| Douglas' dustymaiden |
Chaenactis douglasii |
1 |
| Douglas' squirrel |
Tamiasciurus douglasii |
3 |
| Douglas-fir |
Pseudotsuga menziesii |
3 |
| Douglas-fir beetle |
Dendroctonus pseudotsugae |
18 |
| Douglas-fir dwarf mistletoe |
Arceuthobium douglasii |
16 |
| Douglas-fir engraver |
Scolytus unispinosus |
1 |
| Douglas-fir needle midge |
Contarinia pseudotsugae |
3 |
| Douglas-fir needlecast |
Rhabdocline pseudotsugae |
1 |
| Douglas-fir tussock moth |
Orgyia pseudotsugata |
9 |
| downy danthonia |
Danthonia sericea |
2 |
| downy lobelia |
Lobelia puberula |
2 |
| drainage |
|
1 |
| drought |
|
11 |
| Dryad's Saddle |
Polyporus squamosus |
1 |
| dryspike sedge |
Carex foenea |
1 |
| Dutch elm disease |
Ophiostoma ulmi |
11 |
| Dutch elm disease (novi-ulmi) |
Ophiostoma novo-ulmi |
1 |
| dutchman's breeches |
Dicentra cucullaria |
1 |
| dwarf mistletoes |
Arceuthobium spp. |
21 |
| dwarf palmetto |
Sabal minor |
2 |
| eastern arborvitae |
Thuja occidentalis |
4 |
| eastern ash bark beetle |
Hylesinus aculeatus |
4 |
| eastern cottontail |
Sylvilagus floridanus |
3 |
| eastern cottonwood |
Populus deltoides ssp. deltoides |
1 |
| eastern dwarf mistletoe |
Arceuthobium pusillum |
5 |
| eastern gray squirrel |
Sciurus carolinensis |
10 |
| eastern hemlock |
Tsuga canadensis |
1 |
| eastern hemlock looper |
Lambdina fiscellaria fiscellaria |
1 |
| eastern larch beetle |
Dendroctonus simplex |
1 |
| eastern newt |
Notophthalmus viridescens |
1 |
| eastern pine gall rust |
Cronartium quercuum |
9 |
| eastern poison-ivy |
Toxicodendron radicans |
2 |
| eastern red bat |
Lasiurus borealis |
1 |
| eastern redcedar |
Juniperus virginiana |
2 |
| eastern spruce gall adelgid |
Adelges abietis |
1 |
| eastern tent caterpillar |
Malacosoma americanum |
14 |
| eastern tiger swallowtail |
Papilio glaucus |
1 |
| eastern white pine |
Pinus strobus |
14 |
| ectomycorrhizae |
|
3 |
| ectomycorrhizae |
Pisolithus tinctorius |
2 |
| Ectomycorrhizae |
Thelephora terrestris |
5 |
| elder borer |
Desmocerus palliatus |
1 |
| electrical conductivity meter |
|
2 |
| elephanthead lousewort |
Pedicularis groenlandica |
1 |
| elk |
Cervus canadensis |
16 |
| elkweed |
Frasera speciosa |
2 |
| Elliott bluestem |
Andropogon gyrans |
1 |
| Elliott's blueberry |
Vaccinium elliottii |
1 |
| elm borer |
Saperda tridentata |
2 |
| elm sawfly |
Cimbex americana |
2 |
| elm spanworm |
Ennomos subsignaria |
3 |
| Elm yellows |
Phytoplasma |
1 |
| Elytroderma needle cast of pine |
Elytroderma deformans |
9 |
| emerald ash borer |
Agrilus planipennis |
18 |
| Engelmann spruce |
Picea engelmannii |
12 |
| English ivy |
Hedera helix |
10 |
| English oak |
Quercus robur |
1 |
| epicormic branch |
|
3 |
| Eriophyid mite |
|
1 |
| Eulophid wasp |
Dicladocerus westwoodii |
3 |
| European beech |
Fagus sylvatica |
1 |
| European bird cherry |
Prunus padus |
2 |
| European buckthorn |
Rhamnus cathartica |
1 |
| European corn borer |
Ostrinia nubilalis |
1 |
| European elm leafcurl aphid |
Eriosoma ulmi |
1 |
| European elm scale |
Gossyparia spuria |
1 |
| European fruit lecanium |
Parthenolecanium corni |
1 |
| European hornbeam |
Carpinus betulus |
1 |
| European pine sawfly |
Neodiprion sertifer |
9 |
| European pine shoot moth |
Rhyacionia buoliana |
6 |
| European sticktight |
Lappula squarrosa |
1 |
| Eutypella canker |
Eutypella parasitica |
18 |
| evening grosbeak |
Coccothraustes vespertinus |
3 |
| fairy slipper |
Calypso bulbosa |
2 |
| fall color |
|
6 |
| fall webworm |
Hyphantria cunea |
7 |
| false hemlock looper |
Nepytia canosaria |
1 |
| false tinder polypore |
Phellinus igniarius |
6 |
| false turkey tail |
Stereum gausapatum |
1 |
| feathery false lily of the valley |
Maianthemum racemosum ssp. racemosum |
2 |
| felling |
|
1 |
| fernleaf yarrow |
Achillea filipendulina |
1 |
| fetterbush lyonia |
Lyonia lucida |
1 |
| field bindweed |
Convolvulus arvensis |
1 |
| fir and spruce canker |
|
3 |
| fir broom rust |
Melampsorella caryophyllacearum |
7 |
| fir dwarf mistletoe |
Arceuthobium abietinum |
2 |
| fir engraver |
Scolytus ventralis |
9 |
| fir mistletoe |
Phoradendron pauciflorum |
1 |
| fir needle cast |
Isthmiella abietis |
1 |
| fire |
|
58 |
| fire blight |
Erwinia amylovora |
1 |
| fireweed |
Chamerion angustifolium |
2 |
| fishing |
|
1 |
| fivenerve helianthella |
Helianthella quinquenervis |
1 |
| flatheaded appletree borer |
Chrysobothris femorata |
2 |
| flatheaded or metallic wood borer |
|
1 |
| flooding/high water |
|
5 |
| Florida paspalum |
Paspalum floridanum |
1 |
| Florida scrub jay |
Aphelocoma coerulescens |
5 |
| flush cut |
|
8 |
| fly agaric |
Amanita muscaria |
5 |
| forest tent caterpillar |
Malacosoma disstria |
19 |
| foxtail barley |
Hordeum jubatum |
3 |
| foxtail pine |
Pinus balfouriana |
2 |
| fragrant sumac |
Rhus aromatica |
2 |
| fragrant waterlily |
Nymphaea odorata |
1 |
| frost and winter injury (general) |
|
41 |
| fuelwood |
|
2 |
| Fusarium cortical stem rot |
Fusarium avenaceum |
1 |
| Fusarium damping-off |
Fusarium solani |
1 |
| Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
3 |
| fusiform rust |
Cronartium quercuum f.sp. fusiforme |
31 |
| gall rust of jack pine |
Cronartium quercuum f.sp. banksianae |
1 |
| gallberry |
Ilex glabra |
1 |
| gallmaking maple borer |
Xylotrechus aceris |
2 |
| galls |
|
5 |
| Gambel oak |
Quercus gambelii |
6 |
| Ganoderma root and butt rot |
Ganoderma lucidum |
1 |
| garden vetch |
Vicia sativa nigra |
2 |
| garlic mustard |
Alliaria petiolata |
17 |
| garter snakes |
Thamnophis spp. |
2 |
| Gelechiid moths |
|
1 |
| Geometrid moth |
Lambdina vitraria |
1 |
| Geyer's sedge |
Carex geyeri |
3 |
| geysers |
|
4 |
| giant bark aphid |
Longistigma caryae |
1 |
| giant conifer aphids |
Cinara spp. |
3 |
| Giant ichneumon wasp |
Megarhyssa spp. |
2 |
| giant lousewort |
Pedicularis procera |
2 |
| giant plumegrass |
Saccharum giganteum |
1 |
| giant reed |
Arundo donax |
9 |
| giant sequoia |
Sequoiadendron giganteum |
1 |
| gilled polypore |
Lenzites betulina |
1 |
| glossy buckthorn |
Frangula alnus |
4 |
| glossy privet |
Ligustrum lucidum |
6 |
| golden bamboo |
Phyllostachys aurea |
11 |
| golden currant |
Ribes aureum |
1 |
| golden eagle |
Aquila chrysaetos |
2 |
| goldspotted oak borer |
Agrilus coxalis auroguttatus |
1 |
| gooseberry currant |
Ribes montigenum |
1 |
| gorse soft shoot moth |
Agonopterix ulicitella |
1 |
| graceful buttercup |
Ranunculus inamoenus |
1 |
| grade change |
|
1 |
| grand fir |
Abies grandis |
3 |
| Grand Tetons |
Teton Range |
1 |
| grape root borer |
Vitacea polistiformis |
1 |
| grassy deathcamas |
Zigadenus venenosus var. gramineus |
1 |
| gray jay |
Perisoreus canadensis |
3 |
| gray mold |
Botrytis cinerea |
2 |
| gray molds |
Botrytis spp. |
2 |
| gray wolf |
Canis lupus |
3 |
| Gray's angelica |
Angelica grayi |
1 |
| Gray's biscuitroot |
Lomatium grayi |
1 |
| great blue heron |
Ardea herodias |
6 |
| Great Egret |
Ardea alba |
2 |
| great egret |
Casmerodius albus |
3 |
| great horned owl |
Bubo virginianus |
2 |
| Great Plains yucca |
Yucca glauca |
4 |
| greater fringed gentian |
Gentianopsis crinita |
2 |
| greater purple fringed orchid |
Platanthera grandiflora |
3 |
| greater tickseed |
Coreopsis major |
1 |
| green ash |
Fraxinus pennsylvanica |
6 |
| green false-hellebore |
Veratrum viride |
1 |
| green fringed orchid |
Platanthera lacera |
1 |
| Greene's mountain ash |
Sorbus scopulina |
1 |
| greenleaf fescue |
Festuca viridula |
1 |
| ground squirrels |
Spermophilus spp. |
1 |
| growth & yield |
|
1 |
| Gunnison's mariposa lily |
Calochortus gunnisonii |
1 |
| Gynosporanium rusts |
Gymnosporangium spp. |
2 |
| gypsy moth |
Lymantria dispar |
52 |
| hail |
|
8 |
| hairy cat's ear |
Hypochaeris radicata |
3 |
| hairy evening-primrose |
Oenothera villosa ssp. strigosa |
1 |
| hairy white oldfield aster |
Symphyotrichum pilosum var. pilosum |
1 |
| harsh Indian paintbrush |
Castilleja hispida |
1 |
| harvesting |
|
3 |
| hawthorn agrilus |
Agrilus crataegi |
2 |
| heart rot |
Laricifomes officinalis |
4 |
| heart rot |
Phellinus rimosus |
1 |
| heartleaf arnica |
Arnica cordifolia |
1 |
| heartleaf bittercress |
Cardamine cordifolia |
1 |
| helmet flower |
Scutellaria integrifolia |
2 |
| hemlock borer |
Phaenops fulvoguttata |
2 |
| hemlock borer |
Phaenops fulvoguttata |
1 |
| hemlock dwarf mistletoe |
Arceuthobium tsugense |
1 |
| hemlock varnish shelf |
Ganoderma tsugae |
3 |
| hemlock woolly adelgid |
Adelges tsugae |
8 |
| hemp dogbane |
Apocynum cannabinum |
2 |
| herbicides (general) |
|
31 |
| Hercules' club |
Zanthoxylum clava-herculis |
1 |
| Hericium fungus |
Hericium americanum |
1 |
| Hericium fungus |
Hericium coralloides |
1 |
| hickory agrilus |
Agrilus otiosus |
4 |
| hickory bark beetle |
Scolytus quadrispinosus |
1 |
| hickory decline |
|
1 |
| hickory shoot curculio |
Conotrachelus aratus |
2 |
| highbush blackberry |
Rubus argutus |
1 |
| hispidus canker |
Inonotus hispidus |
8 |
| hoary groundsel |
Packera werneriifolia |
1 |
| hoary marmot |
Marmota caligata |
1 |
| hog plum |
Prunus umbellata |
1 |
| Holm's ragwort |
Senecio amplectens var. holmii |
1 |
| honey bee |
Apis mellifera |
2 |
| honeylocust |
Gleditsia triacanthos |
1 |
| Hooker's balsamroot |
Balsamorhiza hookeri |
2 |
| hophornbeam |
Ostrya virginiana |
1 |
| horned oak gall |
Callirhytis cornigera |
1 |
| horse (domestic) |
Equus caballus (domestic type) |
1 |
| horse (feral) |
Equus caballus (feral type) |
6 |
| horsemint |
Blephilia ciliata |
2 |
| house finch |
Carpodacus mexicanus |
3 |
| house sparrow |
Passer domesticus |
1 |
| house wren |
Troglodytes aedon |
1 |
| human caused injury |
|
11 |
| hummingbird clearwing |
Hemaris thysbe |
1 |
| hunting |
|
5 |
| hurricane |
|
4 |
| Hypoxylon canker of aspen |
Entoleuca mammata |
10 |
| Hypoxylon canker of oak |
Biscogniauxia atropunctata atropunctata |
12 |
| Hypoxylon cankers |
Hypoxylon spp. |
16 |
| imbedded objects |
|
5 |
| incense cedar broom rust |
Gymnosporangium libocedri |
3 |
| included bark |
|
12 |
| indian paint fungus |
Echinodontium tinctorium |
5 |
| Indian ricegrass |
Achnatherum hymenoides |
2 |
| Indian rubberplant |
Ficus elastica |
2 |
| Indian woodoats |
Chasmanthium latifolium |
1 |
| Indianpipe |
Monotropa uniflora |
1 |
| indigobush twig borer |
Hystricophora taleana |
1 |
| inflated grasswidow |
Olsynium douglasii var. inflatum |
1 |
| ink spot leaf blight |
Ciborinia whetzelii |
1 |
| inland bluegrass |
Poa nemoralis ssp. interior |
1 |
| Inonotus canker |
Inonotus radiatus |
1 |
| inrolled crack |
|
3 |
| introduced pine sawfly |
Diprion similis |
3 |
| Ips engraver beetles |
Ips spp. |
15 |
| iris |
Iris spp. |
1 |
| iron deficiency |
|
3 |
| Irpex canker |
Spongipellis pachyodon |
2 |
| irrigation |
|
1 |
| jack pine budworm |
Choristoneura pinus pinus |
9 |
| jack pine sawfly |
Neodiprion pratti banksianae |
1 |
| Japanese barberry |
Berberis thunbergii |
3 |
| Japanese beetle |
Popillia japonica |
7 |
| Japanese climbing fern |
Lygodium japonicum |
4 |
| Japanese honeysuckle |
Lonicera japonica |
4 |
| Japanese knotweed |
Fallopia japonica |
15 |
| Japanese privet |
Ligustrum japonicum |
1 |
| Japanese spiraea |
Spiraea japonica |
9 |
| Japanese stiltgrass |
Microstegium vimineum |
5 |
| Jeffery pine beetle |
Dendroctonus jeffreyi |
2 |
| johnsongrass |
Sorghum halepense |
5 |
| juba skipper |
Hesperia juba |
1 |
| juniper mistletoe |
Phoradendron juniperinum |
13 |
| karner blue |
Plebejus melissa |
1 |
| Kentucky coffeetree |
Gymnocladus dioicus |
1 |
| king bolete |
Boletus edulis |
1 |
| Klamath plum |
Prunus subcordata |
1 |
| knotroot foxtail |
Setaria parviflora |
1 |
| kudzu |
Pueraria montana |
4 |
| kudzu |
Pueraria montana var. lobata |
12 |
| Lachnellula canker |
Lachnellula flavovirens |
1 |
| ladies'-tresses |
Spiranthes spp. |
1 |
| lady beetle |
|
1 |
| lakes and ponds |
|
3 |
| Lambert crazyweed |
Oxytropis lambertii |
2 |
| lambstongue ragwort |
Senecio integerrimus |
1 |
| laminated root disease |
Phellinus weirii |
4 |
| lanceleaf blanketflower |
Gaillardia aestivalis |
2 |
| lanceleaf figwort |
Scrophularia lanceolata |
1 |
| larch casebearer |
Coleophora laricella |
8 |
| larch dwarf mistletoe |
Arceuthobium laricis |
7 |
| larch engraver |
Scolytus laricis |
1 |
| larch looper |
Macaria sexmaculata sexmaculata |
1 |
| larch needle cast |
Hypodermella laricis |
1 |
| larch sawfly |
Pristiphora erichsonii |
6 |
| large aspen tortrix |
Choristoneura conflictana |
4 |
| large yellow vetch |
Vicia grandiflora |
1 |
| large-spored spruce-laborador tea/needle rust |
Chrysomyxa ledicola |
1 |
| larger boxelder leafroller |
Archips negundana |
3 |
| larger pine shoot beetle |
Tomicus piniperda |
2 |
| larkspur |
Delphinium spp. |
1 |
| laurel wilt |
Raffaelea lauricola |
4 |
| leaf spot |
Marssonia spp. |
1 |
| leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
2 |
| leafcurl midges |
Dasineura spp. |
1 |
| leaffooted pine seed bug |
Leptoglossus corculus |
1 |
| leafhopper |
Typhlocyba albicans |
3 |
| leafhoppers |
|
1 |
| leafminer flies |
|
1 |
| leatherleaf mahonia |
Mahonia bealei |
1 |
| Lentinus mushrooms |
Lentinus spp. |
4 |
| Leptographium root disease |
Leptographium procerum |
9 |
| Leptographium root disease |
Leptographium spp. |
1 |
| lesser cornstalk borer |
Elasmopalpus lignosellus |
1 |
| lesser goldfinch |
Carduelis psaltria |
2 |
| lesser peachtree borer |
Synanthedon pictipes |
1 |
| lesser snakeroot |
Ageratina aromatica var. aromatica |
1 |
| Leucostoma canker of spruce |
Leucostoma kunzei |
1 |
| Lewis' mock orange |
Philadelphus lewisii |
2 |
| lichen |
|
1 |
| lifting, grading, & storage |
|
1 |
| lightning |
|
23 |
| lilyturf |
Liriope spp. |
2 |
| limb rust |
Peridermium filamentosum |
8 |
| limber pine |
Pinus flexilis |
2 |
| limber pine dwarf mistletoe |
Arceuthobium cyanocarpum |
10 |
| linden looper |
Erannis tiliaria |
1 |
| lion's mane hericium |
Hericium erinaceus |
3 |
| little bluestem |
Schizachyrium scoparium |
1 |
| live oak |
Quercus virginiana |
1 |
| liverleaf wintergreen |
Pyrola asarifolia |
3 |
| living-hickory borer |
Goes pulcher |
7 |
| loading |
|
1 |
| loblolly pine |
Pinus taeda |
9 |
| loblolly pine sawfly |
Neodiprion taedae linearis |
2 |
| locust borer |
Megacyllene robiniae |
1 |
| locust leafminer |
Odontota dorsalis |
2 |
| locust twig borer |
Ecdytolopha insiticiana |
3 |
| lodgepole cone beetle |
Conophthorus ponderosae |
1 |
| lodgepole pine |
Pinus contorta |
4 |
| lodgepole pine needle cast |
Lophodermella concolor |
3 |
| lodgepole sawfly |
Neodiprion burkei |
1 |
| lodgepole terminal weevil |
Pissodes terminalis |
7 |
| logging damage |
|
3 |
| long-billed curlew |
Numenius americanus |
1 |
| long-horned beetles |
|
2 |
| long-horned beetles |
Xylotrechus spp. |
1 |
| longleaf pine |
Pinus palustris |
51 |
| Lophodermium needle casts |
Lophodermium spp. |
2 |
| Lorquin's Admiral |
Limenitis lorquini lorquini |
2 |
| low larkspur |
Delphinium nuttallianum |
1 |
| luna moth |
Actias luna |
2 |
| Macartney rose |
Rosa bracteata |
2 |
| Macrophoma rough bark disease |
Macrophoma tumefaciens |
2 |
| mangrove |
Rhizophora spp. |
1 |
| map/figure |
|
3 |
| maple |
Acer spp. |
4 |
| maple callus borer |
Synanthedon acerni |
1 |
| maple twig borer |
Proteoteras aesculana |
1 |
| marine mangrove ecosystem |
|
1 |
| marsh wren |
Cistothorus palustris |
3 |
| Marssonina blight of poplar |
Marssonina populi |
1 |
| Marssonina leaf spot |
Marssonina tiliae |
1 |
| Marssonina leaf spot |
Marssonina tremulae |
1 |
| Maryland goldenaster |
Chrysopsis mariana |
4 |
| Maryland meadowbeauty |
Rhexia mariana |
1 |
| May-June beetles |
Phyllophaga spp. |
2 |
| maypop passionflower |
Passiflora incarnata |
2 |
| meadow hawkweed |
Hieracium caespitosum |
1 |
| meadowbeauty |
Rhexia virginica |
1 |
| mealybug |
Oracella acuta |
3 |
| mechanical |
|
6 |
| mechanical strip thinning |
|
1 |
| Medusa needle blight |
Davisomycella medusa |
6 |
| metalic wood-boring beetles |
Agrilus spp. |
2 |
| Microspirid mite |
Caesarodispus klepzigi |
1 |
| mile-a-minute weed |
Persicaria perfoliata |
2 |
| milk-white toothed polypore |
Irpex lacteus |
1 |
| mimosa |
Albizia julibrissin |
11 |
| mimosa wilt |
Fusarium oxysporum f.sp. perniciosum |
2 |
| miner's candle |
Cryptantha virgata |
2 |
| misc. forestry picture |
|
4 |
| mistletoes |
Phoradendron spp. |
9 |
| mite |
|
2 |
| mixed species stands |
|
3 |
| monarch butterfly |
Danaus plexippus |
3 |
| monkey |
|
1 |
| monkeygrass |
Liriope muscari |
10 |
| moose |
Alces alces |
6 |
| morel |
Morchella spp. |
1 |
| Mount Hood |
High Cascades |
3 |
| mountain ash |
Eucalyptus regnans |
1 |
| mountain bluebird |
Sialia currucoides |
7 |
| mountain chickadee |
Poecile gambeli |
2 |
| mountain deathcamas |
Zigadenus elegans |
1 |
| mountain deathcamas |
Zigadenus elegans ssp. elegans |
2 |
| mountain lady's slipper |
Cypripedium montanum |
2 |
| mountain larkspur |
Delphinium ramosum |
2 |
| mountain muhly |
Muhlenbergia montana |
2 |
| mountain pine beetle |
Dendroctonus ponderosae |
48 |
| mountain sedge |
Carex scopulorum |
1 |
| mountain snowberry |
Symphoricarpos oreophilus |
2 |
| mountain thistle |
Cirsium scopulorum |
1 |
| mourning cloak butterfly |
Nymphalis antiopa |
4 |
| muhly |
Muhlenbergia spp. |
1 |
| mulching |
|
5 |
| mule deer |
Odocoileus hemionus |
43 |
| multicolored Asian lady beetle |
Harmonia axyridis |
2 |
| multiflora rose |
Rosa multiflora |
8 |
| muscadine |
Vitis rotundifolia |
1 |
| musk thistle |
Carduus nutans |
7 |
| muskrat |
Ondatra zibethicus |
2 |
| Nantucket pine tip moth |
Rhyacionia frustrana |
1 |
| narrow-winged tree cricket |
Oecanthus niveus |
1 |
| narrowleaf hawksbeard |
Crepis tectorum |
3 |
| national forest |
|
1 |
| native elm bark beetle |
Hylurgopinus rufipes |
1 |
| naval stores |
|
2 |
| Nebraska sedge |
Carex nebrascensis |
1 |
| Nectria canker |
Nectria cinnabarina |
1 |
| Nectria canker |
Nectria spp. |
12 |
| needle and thread |
Hesperostipa comata ssp. comata |
1 |
| needle blight of cedar |
Didymascella thujina |
2 |
| needle blight of larch |
Meria laricis |
2 |
| needle cast |
Bifusella saccata |
1 |
| needle cast |
Lophodermium seditiosum |
1 |
| needle cast |
Virgella robusta |
1 |
| needle palm |
Rhapidophyllum hystrix |
1 |
| needlecast |
Davisomycella attenuata |
1 |
| needlecast |
Lophodermella montivaga |
1 |
| Nelson's hairstreak |
Mitoura nelsoni |
1 |
| Neonectria canker |
Neonectria galligena |
2 |
| Neonectria cankers |
Neonectria spp. |
3 |
| net-winged beetles |
Calopteron spp. |
1 |
| New Mexico locust |
Robinia neomexicana |
1 |
| nodding bluegrass |
Poa reflexa |
1 |
| nodding onion |
Allium cernuum |
1 |
| nodding ragwort |
Senecio bigelovii var. bigelovii |
1 |
| North American river otter |
Lontra canadensis |
11 |
| Northern blue |
Plebejus idas |
1 |
| northern catalpa |
Catalpa speciosa |
1 |
| northern flicker |
Colaptes auratus |
3 |
| northern goshawk |
Accipiter gentilis |
9 |
| northern green orchid |
Platanthera hyperborea |
2 |
| northern hardwoods |
|
4 |
| northern harrier |
Circus cyaneus |
2 |
| northern pitch twig moth |
Retinia albicapitana |
3 |
| northern pygmy owl |
Glaucidium gnoma |
1 |
| northern red oak |
Quercus rubra |
2 |
| northern saw-whet owl |
Aegolius acadicus |
1 |
| northern shoveler |
Anas clypeata |
1 |
| northern tooth |
Climacodon septentrionalis |
4 |
| nuclear polyhedrosis virus |
Nucleopolyhedrovirus |
3 |
| nun moth |
Lymantria monacha |
3 |
| nursery operations |
|
5 |
| nutrient deficiency |
|
3 |
| Nuttall oak |
Quercus texana |
4 |
| oak anthracnose |
Apiognomonia errabunda |
2 |
| oak branch borer |
Goes debilis |
1 |
| oak decline |
|
3 |
| oak lace bug |
Corythucha arcuata |
1 |
| oak leaf aphids |
Myzocallis spp. |
1 |
| oak leaf blister |
Taphrina caerulescens |
1 |
| oak lecanium |
Parthenolecanium quercifex |
1 |
| oak phylloxerids |
Phylloxera spp. |
3 |
| oak sapling borer |
Goes tesselatus |
1 |
| oak sawfly |
Caliroa petiolata |
1 |
| oak skeletonizer |
Bucculatrix ainsliella |
1 |
| oak stem borer |
Aneflomorpha subpubescens |
3 |
| oak tatters |
|
2 |
| oak timberworm |
Arrenodes minutus |
1 |
| oak twig pruners |
Anelaphus spp. |
1 |
| oak wilt |
Ceratocystis fagacearum |
26 |
| Ohia decline |
|
1 |
| old house borer |
Hylotrupes bajulus |
1 |
| orange azalea |
Rhododendron austrinum |
1 |
| orange hawkweed |
Hieracium aurantiacum |
4 |
| orange-banded clerid |
Enoclerus ichneumoneus |
1 |
| orchids |
|
2 |
| Oregon yampah |
Perideridia oregana |
1 |
| organ pipe cactus |
Stenocereus thurberi |
1 |
| oriental bittersweet |
Celastrus orbiculatus |
32 |
| osprey |
Pandion haliaetus |
5 |
| owl fly |
|
1 |
| oxeye |
Heliopsis helianthoides |
1 |
| oxeye daisy |
Leucanthemum vulgare |
4 |
| oyster mushroom |
Pleurotus ostreatus |
4 |
| oyster mushroom |
Pleurotus spp. |
2 |
| oystershell scale |
Lepidosaphes ulmi |
3 |
| ozone |
|
2 |
| Pacific flatheaded borer |
Chrysobothris mali |
2 |
| Pacific mistletoe |
Phoradendron villosum |
2 |
| Pacific onion |
Allium validum |
1 |
| Pacific treefrog |
Pseudacris regilla |
1 |
| Pacific yew |
Taxus brevifolia |
3 |
| packaging |
|
3 |
| pale agoseris |
Agoseris glauca |
1 |
| pale swallowtail |
Papilio eurymedon |
4 |
| pales weevil |
Hylobius pales |
1 |
| palm lethal yellowing |
Candidatus Phytoplasma palmae PLY |
2 |
| palmerworm |
Dichomeris ligulella |
1 |
| pandora moth |
Coloradia pandora |
3 |
| pansy |
Viola x wittrockiana |
1 |
| paper birch |
Betula papyrifera |
3 |
| paper-mulberry |
Broussonetia papyrifera |
7 |
| paraquat |
|
1 |
| Parry's bellflower |
Campanula parryi |
1 |
| Parry's dwarf-sunflower |
Helianthella parryi |
1 |
| Parry's goldenrod |
Oreochrysum parryi |
2 |
| Parry's oatgrass |
Danthonia parryi |
1 |
| Parry's primrose |
Primula parryi |
3 |
| partridgeberry |
Mitchella repens |
2 |
| partridgepea |
Chamaecrista fasciculata |
2 |
| pasmo disease of linseed |
Mycosphaerella linicola |
1 |
| peach bark beetle |
Phloeotribus liminaris |
2 |
| peachtree borer |
Synanthedon exitiosa |
1 |
| pecan |
Carya illinoinensis |
2 |
| pecan carpenterworm |
Cossula magnifica |
2 |
| pecky cypress pocket rot |
Stereum taxodii |
1 |
| people |
|
6 |
| perennial lupine |
Lupinus perennis |
1 |
| perennial sowthistle |
Sonchus arvensis |
2 |
| Perenniporia decay |
Perenniporia subacida |
1 |
| periodical cicada |
Magicicada septendecim |
3 |
| periodical cicada |
Magicicada spp. |
2 |
| persimmon borer |
Sannina uroceriformis |
2 |
| pesticide safety |
|
2 |
| pesticides |
|
29 |
| petiolegall psyllid |
Pachypsylla venusta |
1 |
| Phellinus fungus |
Phellinus gilvus |
1 |
| Phellinus heartrots |
Phellinus spp. |
2 |
| Phomopsis blight |
Phomopsis juniperivora |
7 |
| Phomopsis cankers and twig blights |
Phomopsis spp. |
4 |
| Phytophthora root and crown rots |
Phytophthora spp. |
2 |
| Phytophthora root rot |
Phytophthora cinnamomi |
15 |
| pigeon tremex |
Tremex columba |
1 |
| pileated woodpecker |
Dryocopus pileatus |
10 |
| pine |
Pinus spp. |
2 |
| pine bark adelgid |
Pineus strobi |
13 |
| pine butterfly |
Neophasia menapia |
7 |
| pine colaspis |
Colaspis pini |
1 |
| pine engraver |
Ips pini |
8 |
| pine grosbeak |
Pinicola enucleator |
2 |
| pine infesting sawflies |
Neodiprion fulviceps |
1 |
| pine marten |
Martes americana |
1 |
| pine needle cast |
Lophodermella cerina |
8 |
| pine needle cast |
Lophodermium nitens |
2 |
| pine needle cast |
Lophodermium pinastri |
3 |
| pine needle rust |
Coleosporium asterum |
1 |
| pine needle rusts |
Coleosporium spp. |
2 |
| pine needle scale |
Chionaspis pinifoliae |
2 |
| pine needle sheathminer |
Zelleria haimbachi |
1 |
| pine processionary moth |
Thaumetopoea pityocampa |
1 |
| pine reproduction weevil |
Cylindrocopturus eatoni |
1 |
| pine resin midges |
Cecidomyia spp. |
1 |
| pine root collar weevil |
Hylobius radicis |
2 |
| pine spittlebug |
Aphrophora cribrata |
1 |
| pine thrips |
Gnophothrips spp. |
1 |
| pine tip moths |
Rhyacionia spp. |
1 |
| pine tip root weevil |
Hylobius rhizophagus |
1 |
| pine tortoise scale |
Toumeyella parvicornis |
5 |
| pine tube moth |
Argyrotaenia pinatubana |
1 |
| pine tussock moth |
Dasychira pinicola |
1 |
| pine webworm |
Pococera robustella |
3 |
| pine wilt nematode |
Bursaphelenchus xylophilus |
6 |
| pineapple gall midges |
Rabdophaga spp. |
1 |
| pinegrass |
Calamagrostis rubescens |
1 |
| pineland dwarf mistletoe |
Arceuthobium vaginatum ssp. cryptopodum |
4 |
| pinesap |
Monotropa hypopithys |
1 |
| pinewoods horkelia |
Horkelia fusca |
1 |
| pineywoods dropseed |
Sporobolus junceus |
2 |
| pinhole borer |
Platypus spp. |
2 |
| pink lady's-slipper |
Cypripedium acaule |
4 |
| pinkscale blazing star |
Liatris elegans |
1 |
| pinyon blister rust |
Cronartium occidentale |
22 |
| pinyon dwarf mistletoe |
Arceuthobium divaricatum |
12 |
| pinyon ips |
Ips confusus |
2 |
| pinyon needle scale |
Matsucoccus acalyptus |
5 |
| pinyon sawfly |
Neodiprion edulicolus |
3 |
| pinyon spindlegall midge |
Pinyonia edulicola |
1 |
| pip gall wasp |
Callirhytis operator |
1 |
| pipsissewa |
Chimaphila umbellata |
1 |
| pitch canker |
Fusarium subglutinans |
14 |
| pitch twig moth |
Retinia comstockiana |
1 |
| pitch-eating weevil |
Pachylobius picivorus |
1 |
| pitcherplants |
Sarracenia spp. |
3 |
| plains cottonwood |
Populus deltoides ssp. monilifera |
1 |
| planting |
|
14 |
| planting stock |
|
2 |
| plumed clover |
Trifolium plumosum |
1 |
| pocket gophers |
|
1 |
| polypore |
Globifomes graveolens |
1 |
| ponderosa pine |
Pinus ponderosa |
17 |
| ponderosa pine dwarf mistletoe |
Arceuthobium vaginatum |
4 |
| poor architecture |
|
8 |
| poplar borer |
Saperda calcarata |
11 |
| poplar branch borer |
Oberea schaumii |
1 |
| poplar gall borer |
Saperda inornata |
6 |
| poplar leaf aphid |
Chaitophorus populicola |
1 |
| poplar leafcurl midge |
Prodiplosis morrisi |
1 |
| poplar rust |
Melampsora medusae |
1 |
| poplar twig borer |
Oberea delongi |
1 |
| poplar twiggall fly |
Hexomyza schineri |
1 |
| poplar-and-willow borer |
Cryptorhynchus lapathi |
2 |
| porcupine |
Erethizon dorsatum |
19 |
| Porter's false needlegrass |
Ptilagrostis porteri |
1 |
| Porter's licorice-root |
Ligusticum porteri |
1 |
| post oak grasshopper |
Dendrotettix quercus |
1 |
| post planting protection |
|
2 |
| powdery mildews |
|
1 |
| prairie falcon |
Falco mexicanus |
4 |
| prairie Junegrass |
Koeleria macrantha |
3 |
| prairie spiderwort |
Tradescantia occidentalis |
1 |
| precommercial thinning |
|
1 |
| prescribed fire |
|
6 |
| prickly lettuce |
Lactuca serriola |
1 |
| princesstree |
Paulownia tomentosa |
11 |
| pronghorn antelope |
Antilocapra americana |
8 |
| pruning (general) |
|
6 |
| pterocarpus |
Pterocarpus indicus |
1 |
| Puerto Rican Parrot |
Amazona vittata |
1 |
| pulpwood |
|
1 |
| purple cudweed |
Gamochaeta purpurea |
1 |
| purple loosestrife |
Lythrum salicaria |
1 |
| purple lovegrass |
Eragrostis spectabilis |
1 |
| purple nutsedge |
Cyperus rotundus |
1 |
| purple reedgrass |
Calamagrostis purpurascens |
1 |
| quaking aspen |
Populus tremuloides |
40 |
| rabbit |
|
2 |
| rabbittobacco |
Pseudognaphalium obtusifolium ssp. obtusifolium |
1 |
| raccoon |
Procyon lotor |
2 |
| rainbow |
|
5 |
| Rainier pleated gentian |
Gentiana calycosa |
1 |
| ram's head lady's slipper |
Cypripedium arietinum |
1 |
| Ramaria fungi |
Ramaria spp. |
1 |
| ramp |
Allium tricoccum |
1 |
| raspberry cane borer |
Oberea perspicillata |
1 |
| rat, vole, mouse |
|
6 |
| red admiral |
Vanessa atalanta |
1 |
| red alder |
Alnus rubra |
1 |
| red baneberry |
Actaea rubra ssp. arguta |
1 |
| red belt abiotic damage |
|
1 |
| red chokeberry |
Photinia pyrifolia |
2 |
| red heart decay bleeding fungus |
Rigidoporus sanguinolentus |
1 |
| red heart of pine |
Phellinus pini |
10 |
| red mangrove |
Rhizophora stylosa |
9 |
| red maple |
Acer rubrum |
4 |
| red oak borer |
Enaphalodes rufulus |
11 |
| red pine |
Pinus resinosa |
16 |
| red pine cone beetle |
Conophthorus resinosae |
1 |
| red pine cone borer |
Eucosma monitorana |
1 |
| red pine shoot moth |
Dioryctria resinosella |
5 |
| red spruce |
Picea rubens |
1 |
| red trillium |
Trillium erectum |
2 |
| red turpentine beetle |
Dendroctonus valens |
7 |
| red-bellied woodpecker |
Melanerpes carolinus |
1 |
| red-belted fungus |
Fomitopsis pinicola |
11 |
| red-breasted nuthatch |
Sitta canadensis |
1 |
| red-breasted sapsucker |
Sphyrapicus ruber |
1 |
| red-cockaded woodpecker |
Picoides borealis |
2 |
| red-naped sapsucker |
Sphyrapicus nuchalis |
1 |
| red-tailed hawk |
Buteo jamaicensis |
14 |
| red-winged blackbird |
Agelaius phoeniceus |
4 |
| redheaded ash borer |
Neoclytus acuminatus |
1 |
| redheaded pine sawfly |
Neodiprion lecontei |
4 |
| redhot poker |
Kniphofia uvaria |
1 |
| rednecked cane borer |
Agrilus ruficollis |
2 |
| redosier dogwood |
Cornus sericea |
3 |
| redosier dogwood |
Cornus sericea ssp. sericea |
1 |
| redwood |
Sequoia sempervirens |
1 |
| redwood |
Sequoia spp. |
4 |
| release treatments |
|
5 |
| Rhabdocline needlecast |
Rhabdocline weirii |
1 |
| Rhabdocline needlecasts |
Rhabdocline spp. |
2 |
| Rhizosphaera needle cast |
Rhizosphaera kalkhoffii |
3 |
| rhododendrons and azaleas |
Rhododendron spp. |
1 |
| rice button aster |
Symphyotrichum dumosum var. dumosum |
1 |
| Richardson's geranium |
Geranium richardsonii |
1 |
| ring muhly |
Muhlenbergia torreyi |
1 |
| ring-billed gull |
Larus delawarensis |
2 |
| risk tree |
|
13 |
| river birch |
Betula nigra |
5 |
| riverine mangrove ecosystem |
|
8 |
| rivers and streams |
|
7 |
| Road salt or de-icing salt |
|
3 |
| robusta coffee |
Coffea canephora |
1 |
| robustus conk |
Phellinus robustus |
1 |
| rock clematis |
Clematis columbiana |
1 |
| Rocky Mountain buttercup |
Ranunculus macauleyi |
1 |
| Rocky Mountain Douglas-Fir |
Pseudotsuga menziesii var. glauca |
4 |
| Rocky Mountain goldenrod |
Solidago multiradiata |
1 |
| Rocky Mountain groundsel |
Packera streptanthifolia |
1 |
| Rocky Mountain juniper |
Juniperus scopulorum |
1 |
| root diseases and rots |
|
9 |
| root lifting, soil heaving, and windthrow |
|
2 |
| root pruning |
|
1 |
| root rot |
Phellinus hartigii |
1 |
| rose spiraea |
Spiraea douglasii |
1 |
| rosebay rhododendron |
Rhododendron maximum |
1 |
| Ross' sedge |
Carex rossii |
1 |
| rough fleabane |
Erigeron strigosus |
1 |
| rough-legged hawk |
Buteo lagopus |
5 |
| round-lobe hepatica |
Anemone americana |
2 |
| round-lobed hepatica |
Hepatica nobilis var. obtusa |
1 |
| roundheaded apple tree borer |
Saperda candida |
1 |
| roundheaded pine beetle |
Dendroctonus adjunctus |
2 |
| row thinning |
|
1 |
| rubber boa |
Charina bottae |
1 |
| rubber tree |
Hevea brasiliensis |
1 |
| Russian-olive |
Elaeagnus angustifolia |
2 |
| rusts |
|
1 |
| rusty blackhaw |
Viburnum rufidulum |
1 |
| rusty gilled polypore |
Gloeophyllum sepiarium |
2 |
| rusty staggerbush |
Lyonia ferruginea |
1 |
| sacred bamboo |
Nandina domestica |
10 |
| sage grouse |
Centrocercus urophasianus |
3 |
| sage thrasher |
Oreoscoptes montanus |
3 |
| sagebrush buttercup |
Ranunculus glaberrimus |
1 |
| sagebrush mariposa lily |
Calochortus macrocarpus |
1 |
| saguaro |
Carnegiea gigantea |
4 |
| sand blackberry |
Rubus cuneifolius |
2 |
| sand pine |
Pinus clausa |
1 |
| sanddune wallflower |
Erysimum capitatum |
1 |
| sanddune wallflower |
Erysimum capitatum var. capitatum |
1 |
| sapstreak disease of sugar maple |
Ceratocystis coerulescens |
2 |
| sapsucker injury |
|
1 |
| Saratoga spittlebug |
Aphrophora saratogensis |
5 |
| sarsaparillavine |
Smilax pumila |
2 |
| sassafras |
Sassafras albidum |
2 |
| sassafras borer |
Oberea ruficollis |
3 |
| savanna baboon |
Papio cynocephalus |
1 |
| sawflies |
|
1 |
| sawfly parasitic wasp |
Monodontomerus dentipes |
1 |
| sawyer beetles |
Monochamus spp. |
2 |
| scabland fleabane |
Erigeron bloomeri |
1 |
| scarabs or scarab beetles |
|
4 |
| scarlet beebalm |
Monarda didyma |
1 |
| scarlet elfcup |
Sarcoscypha austriaca |
1 |
| scarlet gaura |
Gaura coccinea |
1 |
| scarlet gilia |
Ipomopsis aggregata |
1 |
| scarlet macaw |
Ara macao |
1 |
| scarlet rosemallow |
Hibiscus coccineus |
1 |
| scentbottle |
Platanthera dilatata |
2 |
| Schweinitzii root and butt disease |
Phaeolus schweinitzii |
2 |
| Scleroderris canker of pine and spruce |
Gremmeniella abietina |
6 |
| Scotch broom |
Cytisus scoparius |
1 |
| Scott's clematis |
Clematis hirsutissima var. scottii |
1 |
| seed orchard/seed production areas |
|
1 |
| seed tree |
|
2 |
| seed worms |
Cydia spp. |
1 |
| seeding or sowing |
|
2 |
| seedlings |
|
28 |
| seeds/cones |
|
2 |
| selection |
|
7 |
| selection thinning |
|
2 |
| Septoria leaf spot and cankers |
Septoria spp. |
1 |
| sequoia pitch moth |
Synanthedon sequoiae |
2 |
| sericea lespedeza |
Lespedeza cuneata |
7 |
| serviceberry |
Amelanchier alnifolia |
3 |
| shagbark hickory |
Carya ovata |
1 |
| shaggy blazing star |
Liatris pilosa |
1 |
| Shaggy mane |
Coprinus comatus |
3 |
| shear crack |
|
6 |
| shelterwood |
|
7 |
| shepherd's crook leaf and shoot blight |
Venturia populina |
1 |
| shieldbacked pine seed bug |
Tetyra bipunctata |
1 |
| shiny blueberry |
Vaccinium myrsinites |
1 |
| shooting star |
Dodecatheon spp. |
1 |
| shortleaf lobelia |
Lobelia brevifolia |
1 |
| shortleaf pine |
Pinus echinata |
1 |
| showy alpine ragwort |
Senecio amplectens var. amplectens |
1 |
| showy lady's slipper |
Cypripedium reginae |
1 |
| showy milkweed |
Asclepias speciosa |
1 |
| showy orchid |
Galearis spectabilis |
1 |
| showy penstemon |
Penstemon spectabilis |
1 |
| shrubby lespedeza |
Lespedeza bicolor |
8 |
| Siberian moth |
Dendrolimus sibiricus |
1 |
| sidebells penstemon |
Penstemon secundiflorus |
2 |
| sidebells wintergreen |
Orthilia secunda |
1 |
| silky phacelia |
Phacelia sericea |
3 |
| silver maple |
Acer saccharinum |
6 |
| silver plumegrass |
Saccharum alopecuroidum |
1 |
| silverleaf |
Chondrostereum purpureum |
1 |
| single delight |
Moneses uniflora |
1 |
| singleleaf pinyon |
Pinus monophylla |
1 |
| Sirex woodwasp |
Sirex noctilio |
3 |
| Sirococcus blight of conifers |
Sirococcus conigenus |
18 |
| sixspined ips |
Ips calligraphus |
4 |
| skeleton |
|
1 |
| skidding |
|
2 |
| skunkcabbage |
Symplocarpus foetidus |
1 |
| slender cinquefoil |
Potentilla gracilis |
1 |
| slender copperleaf |
Acalypha gracilens |
1 |
| slender goldenrod |
Euthamia tenuifolia |
1 |
| slender wheatgrass |
Elymus trachycaulus ssp. trachycaulus |
1 |
| small camas |
Camassia quamash |
1 |
| small spreading pogonia |
Cleistes bifaria |
1 |
| smaller European elm bark beetle |
Scolytus multistriatus |
3 |
| smallflowered woodrush |
Luzula parviflora |
3 |
| smooth brome |
Bromus inermis |
1 |
| smooth patch of oak |
Aleurodiscus oakesii |
6 |
| smooth sumac |
Rhus glabra |
1 |
| snout beetles or weevils |
|
1 |
| snow and ice damage (snow load) |
|
12 |
| snow goose |
Chen caerulescens |
1 |
| snowshoe hare |
Lepus americanus |
1 |
| snowy egret |
Egretta thula |
1 |
| softstem bulrush |
Schoenoplectus tabernaemontani |
1 |
| soil & water |
|
4 |
| sooty bark |
Cenangium populinum |
1 |
| sooty-bark canker |
Encoelia pruinosa |
2 |
| southeastern gray twig pruner |
Anelaphus villosus |
2 |
| southern catalpa |
Catalpa bignonioides |
1 |
| southern cone rust |
Cronartium strobilinum |
1 |
| southern crabapple |
Malus angustifolia |
1 |
| southern pine beetle |
Dendroctonus frontalis |
53 |
| southern pine coneworm |
Dioryctria amatella |
4 |
| southwestern tent caterpillar |
Malacosoma incurvum |
3 |
| southwestern white-spored gall rust |
Peridermium (An undescribed species) |
2 |
| Spanish moss |
Tillandsia usneoides |
2 |
| spanishneedles |
Bidens bipinnata |
1 |
| sparkleberry |
Vaccinium arboreum |
1 |
| Spiculosa canker |
Phellinus spiculosa |
1 |
| spider mites |
|
1 |
| spiked hoarypea |
Tephrosia spicata |
2 |
| spinner dolphin |
Stenella longirostris |
6 |
| spiny lizards |
Sceloporus spp. |
1 |
| spiny sowthistle |
Sonchus asper |
1 |
| spittlebugs or froghoppers |
|
3 |
| splitbeard bluestem |
Andropogon ternarius |
2 |
| splitleaf groundsel |
Packera dimorphophylla dimorphophylla |
1 |
| splitleaf Indian paintbrush |
Castilleja rhexiifolia |
1 |
| spotted fritillary |
Fritillaria atropurpurea |
1 |
| spotted joe pye weed |
Eutrochium maculatum |
1 |
| spotted knapweed |
Centaurea stoebe |
1 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
4 |
| spotted sandpiper |
Actitis macularia |
2 |
| spotted wintergreen |
Chimaphila maculata |
1 |
| spreading dogbane |
Apocynum androsaemifolium |
1 |
| spruce |
Picea spp. |
2 |
| spruce beetle |
Dendroctonus rufipennis |
29 |
| spruce broom rust |
Chrysomyxa arctostaphyli |
7 |
| spruce budworm |
Choristoneura fumiferana |
9 |
| spruce coneworm |
Dioryctria abietella |
1 |
| spruce decline |
|
7 |
| spruce gall adelgid |
Pineus similis |
1 |
| spruce gall aphids |
Adelges spp. |
1 |
| spruce gall midge |
Mayetiola piceae |
1 |
| spruce needle cast/blight |
Lirula macrospora |
1 |
| spruce needle rust |
Chrysomyxa weirii |
1 |
| spruce needle rusts |
Chrysomyxa spp. |
2 |
| spruce needleminer |
Taniva albolineana |
2 |
| spruce spider mite |
Oligonychus ununguis |
9 |
| squirrel |
Sciurus spp. |
6 |
| squirrel corn |
Dicentra canadensis |
1 |
| St. Peterswort |
Hypericum crux-andreae |
1 |
| stalactiform blister rust |
Cronartium coleosporioides |
12 |
| stalk borer |
Papaipema nebris |
1 |
| starfishes |
|
1 |
| starry rosinweed |
Silphium asteriscus |
1 |
| Statue of Liberty |
|
2 |
| Steller's jay |
Cyanocitta stelleri |
1 |
| stem girdling roots |
|
1 |
| stiff ticktrefoil |
Desmodium obtusum |
1 |
| Stigmina leaf spot |
Stigmina lautii |
1 |
| stink bugs |
|
1 |
| stinkhorn mushroom |
Clathrus spp. |
1 |
| storm damage (general) |
|
3 |
| streambank wild hollyhock |
Iliamna rivularis |
1 |
| striped pine scale |
Toumeyella pini |
4 |
| Strumella canker |
Urnula craterium |
6 |
| stubs |
|
4 |
| subalpine fir |
Abies lasiocarpa |
6 |
| subalpine gumweed |
Grindelia subalpina |
1 |
| subterranean termite |
Reticulitermes spp. |
1 |
| sudden oak death |
Phytophthora ramorum |
33 |
| sugar maple borer |
Glycobius speciosus |
2 |
| sugar pine |
Pinus lambertiana |
1 |
| sugar pine tortrix |
Choristoneura lambertiana |
11 |
| sugarberry |
Celtis laevigata |
2 |
| sulfur shelf |
Laetiporus sulphureus |
7 |
| sulphur-flower buckwheat |
Eriogonum umbellatum |
1 |
| sulphur-flower buckwheat |
Eriogonum umbellatum var. majus |
1 |
| sumac stem borer |
Oberea ocellata |
1 |
| summer coralroot |
Corallorrhiza maculata |
2 |
| summer grape |
Vitis aestivalis |
1 |
| sunscald |
|
6 |
| sunsets |
|
3 |
| Swainson's hawk |
Buteo swainsoni |
1 |
| swallowtail butterflies |
Papilio spp. |
2 |
| swamp titi |
Cyrilla racemiflora |
2 |
| sweet fern blister rust |
Cronartium comptoniae |
3 |
| sweet joepyeweed |
Eupatorium purpureum |
1 |
| sweetfern |
Comptonia peregrina |
1 |
| sweetgum |
Liquidambar spp. |
1 |
| sweetgum |
Liquidambar styraciflua |
1 |
| Swiss needle cast |
Phaeocryptopus gaeumannii |
1 |
| switchgrass |
Panicum virgatum |
2 |
| sycamore anthracnose |
Apiognomonia veneta |
2 |
| sycamore dieback |
|
3 |
| sycamore lace bug |
Corythucha ciliata |
1 |
| syrphid or flower flies |
|
2 |
| Tachinid flies |
|
1 |
| tailcup lupine |
Lupinus caudatus |
1 |
| talipot palms |
Corypha spp. |
1 |
| tall blacktip ragwort |
Senecio atratus |
1 |
| tall cottongrass |
Eriophorum angustifolium subarcticum |
1 |
| tall fescue |
Festuca arundinacea |
3 |
| tall larkspur |
Delphinium barbeyi |
1 |
| tall lettuce |
Lactuca canadensis |
1 |
| tamarack |
Larix laricina |
3 |
| tansy ragwort |
Senecio jacobaea |
2 |
| Tanzania |
|
1 |
| Taphrina flower fungus |
Taphrina johansonii |
1 |
| Tarsonemid mite |
Tarsonemus ips |
1 |
| tawny-edged skipper |
Polites themistocles |
1 |
| teak |
Tectona grandis |
1 |
| termites |
|
7 |
| Texas bluebonnet |
Lupinus subcarnosus |
1 |
| Texas leafcutting ant |
Atta texana |
5 |
| thin paspalum |
Paspalum setaceum |
1 |
| thinning (stand) |
|
8 |
| thistle |
Cirsium spp. |
1 |
| thorny olive |
Elaeagnus pungens |
5 |
| Thunberg lespedeza |
Lespedeza thunbergii |
2 |
| tiger moth |
Lophocampa ingens |
2 |
| timothy |
Phleum pratense |
2 |
| tinder fungus |
Fomes fomentarius |
2 |
| tip moth |
|
1 |
| Tomentosus root disease |
Onnia tomentosus |
1 |
| topping |
|
3 |
| tornado |
|
2 |
| Townsend's solitare |
Myadestes townsendi |
1 |
| transplant shock |
|
2 |
| transplanting |
|
1 |
| transport |
|
1 |
| tree anatomy |
|
1 |
| tree implants |
|
1 |
| tree pit |
|
1 |
| tree spade |
|
1 |
| tree swallow |
Tachycineta bicolor |
2 |
| tree-of-heaven |
Ailanthus altissima |
8 |
| triclopyr |
|
1 |
| tricolored heron |
Egretta tricolor |
1 |
| trifoliate orange |
Poncirus trifoliata |
11 |
| tropical soda apple |
Solanum viarum |
2 |
| true fir bark beetles |
Scolytus spp. |
1 |
| trumpetcreeper |
Campsis radicans |
1 |
| trumpeter swan |
Cygnus buccinator |
1 |
| trunk rot |
Pholiota adiposa |
1 |
| trunk rot |
Ustulina deusta |
1 |
| tuberous grasspink |
Calopogon tuberosus var. tuberosus |
1 |
| tuberous vervain |
Verbena rigida |
1 |
| tufted evening-primrose |
Oenothera cespitosa |
1 |
| tuliptree scale |
Toumeyella liriodendri |
1 |
| tungoil tree |
Vernicia fordii |
14 |
| tupelo borer |
Aegomorphus morrisii |
2 |
| turk's-cap lily |
Lilium superbum |
2 |
| turkey tail |
Trametes versicolor |
4 |
| turkey vulture |
Cathartes aura |
5 |
| tussock moths |
Halysidota spp. |
2 |
| twig borer |
|
1 |
| twig girdler |
Oncideres cingulata |
3 |
| two needle pinyon |
Pinus edulis |
2 |
| two-banded checkered-skipper |
Pyrgus ruralis |
1 |
| twolined chestnut borer |
Agrilus bilineatus |
6 |
| uncorrected lean |
|
2 |
| undermined root system |
|
2 |
| unknown |
|
1 |
| unpaved roads and trails |
|
1 |
| urban planting |
|
1 |
| Utah juniper |
Juniperus osteosperma |
1 |
| varileaf phacelia |
Phacelia heterophylla |
1 |
| veiled polypore |
Cryptoporus volvatus |
3 |
| velvet panicum |
Dichanthelium scoparium |
1 |
| Venus flytrap |
Dionaea muscipula |
3 |
| Verticillium wilts |
Verticillium spp. |
3 |
| violet-pored bracket fungus |
Trichaptum abietinum |
1 |
| Virginia opossum |
Didelphis virginiana |
1 |
| Virginia pepperweed |
Lepidium virginicum |
1 |
| Virginia sweetspire |
Itea virginica |
2 |
| Virginia-creeper |
Parthenocissus quinquefolia |
4 |
| volcanoes |
|
2 |
| walkingstick |
Diapheromera femorata |
1 |
| walkingstick cholla |
Opuntia imbricata |
1 |
| walnut caterpillar |
Datana integerrima |
2 |
| Washington lily |
Lilium washingtonianum |
3 |
| water birch |
Betula occidentalis |
3 |
| waterfalls |
|
6 |
| wavyleaf Indian paintbrush |
Castilleja applegatei |
2 |
| waxy sedge |
Carex glaucescens |
1 |
| weak branch union |
|
5 |
| webbing coneworm |
Dioryctria disclusa |
6 |
| weeping conk |
Inonotus dryadeus |
1 |
| weeping lovegrass |
Eragrostis curvula |
5 |
| western balsam bark beetle |
Dryocoetes confusus |
7 |
| western columbine |
Aquilegia formosa |
4 |
| western conifer-seed bug |
Leptoglossus occidentalis |
1 |
| western dock |
Rumex aquaticus var. fenestratus |
1 |
| western dwarf mistletoe |
Arceuthobium campylopodum |
1 |
| western false hemlock looper |
Nepytia freemani |
2 |
| western gall rust |
Endocronartium harknessii |
16 |
| western hemlock looper |
Lambdina fiscellaria lugubrosa |
3 |
| western juniper |
Juniperus occidentalis |
1 |
| western kingbird |
Tyrannus verticalis |
2 |
| western larch |
Larix occidentalis |
1 |
| western meadowlark |
Sturnella neglecta |
1 |
| western pine beetle |
Dendroctonus brevicomis |
5 |
| western pineshoot borer |
Eucosma sonomana |
5 |
| western pond turtle |
Clemmys marmorata |
3 |
| western poplar clearwing |
Paranthrene robiniae |
1 |
| western rattlesnake plantain |
Goodyera oblongifolia |
1 |
| western salsify |
Tragopogon dubius |
1 |
| western scrub jay |
Aphelocoma californica |
1 |
| western springbeauty |
Claytonia rosea |
1 |
| western spruce budworm |
Choristoneura freemani |
16 |
| western tent caterpillar |
Malacosoma californicum |
5 |
| Western white |
Pontia occidentalis |
1 |
| western white pine |
Pinus monticola |
2 |
| Whipple's penstemon |
Penstemon whippleanus |
3 |
| white fir |
Abies concolor |
11 |
| white fir dwarf mistletoe |
Arceuthobium abietinum f.sp. concoloris |
3 |
| white fir needleminer |
Epinotia meritana |
6 |
| white heartwood rot |
Phellinus tremulae |
8 |
| white muscadine disease |
Beauveria bassiana |
1 |
| white oak |
Quercus alba |
4 |
| white oak borer |
Goes tigrinus |
3 |
| white pine aphid |
Cinara strobi |
1 |
| white pine blister rust |
Cronartium ribicola |
53 |
| white pine cone beetle |
Conophthorus coniperda |
2 |
| white pine cone borer |
Eucosma tocullionana |
3 |
| white pine needlecast |
Lophodermella arcuata |
2 |
| white pine sawfly |
Neodiprion pinetum |
1 |
| white pine weevil |
Pissodes strobi |
30 |
| White River coraldrops |
Besseya plantaginea |
1 |
| white rot |
Inonotus glomeratus |
1 |
| white satin moth |
Leucoma salicis |
2 |
| white spruce |
Picea glauca |
1 |
| white stork |
Ciconia ciconia |
1 |
| white trillium |
Trillium grandiflorum |
2 |
| white trout lily |
Erythronium albidum |
2 |
| white violet |
Viola renifolia |
1 |
| white-breasted nuthatch |
Sitta carolinensis |
3 |
| white-crowned sparrow |
Zonotrichia leucophrys |
2 |
| white-faced ibis |
Plegadis chihi |
3 |
| white-lined sphinx |
Hyles lineata |
5 |
| white-tailed deer |
Odocoileus virginianus |
8 |
| white-winged dove |
Zenaida asiatica |
1 |
| whitebark pine |
Pinus albicaulis |
2 |
| whitefringed beetles |
Naupactus spp. |
3 |
| whitemarked tussock moth |
Orgyia leucostigma |
2 |
| whitish gentian |
Gentiana algida |
1 |
| wholeleaf Indian paintbrush |
Castilleja integra |
1 |
| whortleberry |
Vaccinium myrtillus |
1 |
| wild bergamot |
Monarda fistulosa |
1 |
| wild parsnip |
Pastinaca sativa |
1 |
| wild strawberry |
Fragaria virginiana |
1 |
| wild turkey |
Meleagris gallopavo |
3 |
| willet |
Catoptrophorus semipalmatus |
3 |
| willow oak |
Quercus phellos |
1 |
| willow shoot sawfly |
Janus abbreviatus |
3 |
| Wilson's snipe |
Gallinago delicata |
1 |
| wind |
|
7 |
| winged buckwheat |
Eriogonum alatum |
1 |
| winged burning bush |
Euonymus alatus |
7 |
| winter creeper |
Euonymus fortunei |
11 |
| wood decay |
Pholiota albocrenulata |
6 |
| wood decay |
Schizophyllum commune |
1 |
| wood decay and heart rots of hardwoods |
Fomes spp. |
1 |
| wood lily |
Lilium philadelphicum |
1 |
| woodfern |
Dryopteris spp. |
1 |
| woodland pinedrops |
Pterospora andromedea |
1 |
| woodpeckers |
|
14 |
| Woods' rose |
Rosa woodsii |
2 |
| woollysheath threeawn |
Aristida lanosa |
1 |
| wrentit |
Chamaea fasciata |
1 |
| Wyoming Indian paintbrush |
Castilleja linariifolia |
1 |
| yankeeweed |
Eupatorium compositifolium |
1 |
| yarding |
|
1 |
| yaupon |
Ilex vomitoria |
1 |
| yellow avalanche-lily |
Erythronium grandiflorum |
2 |
| yellow avens |
Geum aleppicum |
1 |
| yellow birch |
Betula alleghaniensis |
3 |
| yellow birch decline |
|
1 |
| yellow cap fungi |
Pholiota spp. |
6 |
| yellow jessamine |
Gelsemium sempervirens |
1 |
| yellow lady's slipper |
Cypripedium parviflorum |
6 |
| yellow lichen |
Vulpicida tilesii |
1 |
| yellow marsh marigold |
Caltha palustris |
2 |
| yellow owl's-clover |
Orthocarpus luteus |
1 |
| yellow starthistle flower weevil |
Larinus curtus |
1 |
| yellow sweetclover |
Melilotus officinalis |
2 |
| yellow thistle |
Cirsium horridulum |
2 |
| yellow toadflax |
Linaria vulgaris |
3 |
| yellow trout lily |
Erythronium americanum |
6 |
| yellow-bellied sapsucker |
Sphyrapicus varius varius |
5 |
| yellow-cedar decline |
|
1 |
| yellow-headed blackbird |
Xanthocephalus xanthocephalus |
2 |
| yellow-poplar |
Liriodendron tulipifera |
4 |
| yellow-rumped warbler |
Dendroica coronata |
2 |
| yellowheaded spruce sawfly |
Pikonema alaskensis |
1 |
| yellowleaf hawthorn |
Crataegus flava |
1 |
| yellownecked caterpillar |
Datana ministra |
2 |
| yucca |
Yucca spp. |
1 |
| Zimmerman pine moth |
Dioryctria zimmermani |
3 |
| zonate leaf spot |
Grovesinia pyramidalis |
1 |
