| 'ohi'a lehua |
Metrosideros polymorpha |
2 |
| a li shan e er li |
Carpinus kawakamii |
5 |
| acorn and nut weevils |
Curculio spp. |
1 |
| African tuliptree |
Spathodea campanulata |
2 |
| ailanthus |
Ailanthus spp. |
1 |
| air pollutants |
|
1 |
| Alaska-cedar |
Chamaecyparis nootkatensis |
4 |
| alder |
Alnus formosana |
1 |
| Allegheny serviceberry |
Amelanchier laevis |
2 |
| alligator juniper |
Juniperus deppeana |
2 |
| amberique-bean |
Strophostyles helvola |
1 |
| American beech |
Fagus grandifolia |
2 |
| American chestnut |
Castanea dentata |
1 |
| American elm |
Ulmus americana |
11 |
| American hawthorn rust |
Gymnosporangium globosum |
2 |
| American holly |
Ilex opaca |
3 |
| American hornbeam |
Carpinus caroliniana |
11 |
| American oil palm |
Attalea butyracea |
2 |
| American smoketree |
Cotinus obovatus |
5 |
| American sycamore |
Platanus occidentalis |
13 |
| Amur maple |
Acer ginnala |
9 |
| Amur maple |
Acer japonicum |
2 |
| angulose prominent |
Peridea angulosa |
1 |
| annosum root disease |
Heterobasidion annosum |
1 |
| anthracnose |
Apiognomonia spp. |
2 |
| anthracnose |
Colletotrichum spp. |
2 |
| aphids |
|
3 |
| apple scab |
Venturia inaequalis |
2 |
| apple serviceberry |
Amelanchier x grandiflora |
1 |
| arborvitae |
Thuja spp. |
1 |
| arborvitae leafminer |
Argyresthia thuiella |
1 |
| Arizona walnut |
Juglans major |
3 |
| Armillaria root rot |
Armillaria tabescens |
9 |
| ash borer |
Podosesia syringae |
3 |
| ash flower gall mite |
Eriophyes fraxiniflora |
1 |
| ash heart rot |
Perenniporia fraxinophila |
7 |
| ash yellows phytoplasma |
Candidatus Phytoplasma fraxini |
8 |
| Asian longhorned beetle |
Anoplophora glabripennis |
36 |
| Asian white birch |
Betula platyphylla |
4 |
| Asiatic oak weevil |
Cyrtepistomus castaneus |
2 |
| aspen/poplar |
Populus spp. |
5 |
| Atlantic white cedar |
Chamaecyparis thyoides |
6 |
| Atlas cedar |
Cedrus atlantica |
15 |
| Australian-pine |
Casuarina equisetifolia |
1 |
| Austrian pine |
Pinus nigra |
9 |
| baccharis |
Baccharis spp. |
1 |
| bacterial gummosis |
Pseudomonas syringae |
1 |
| bacterial leaf scorch |
Xylella fastidiosa |
7 |
| bacterial wetwood |
Enterobacter nimipressuralis |
6 |
| bagworm |
Thyridopteryx ephemeraeformis |
1 |
| bagworms |
|
2 |
| baldcypress |
Taxodium distichum |
1 |
| balsam woolly adelgid |
Adelges piceae |
1 |
| bananas |
Musa spp. |
1 |
| banded elm bark beetle |
Scolytus schevyrewi |
1 |
| bark beetles |
|
1 |
| bark lice |
Metylophorus novaescotiae |
1 |
| basal wound |
|
1 |
| basswood leafminer |
Baliosus nervosa |
5 |
| beech bark beetle |
Taphrorychus bicolor |
4 |
| beech splendor beetle |
Agrilus viridis |
2 |
| bigflower pawpaw |
Asimina obovata |
1 |
| bigleaf magnolia |
Magnolia macrophylla |
1 |
| birch |
Betula celtiberica |
1 |
| birch |
Betula raddeana |
1 |
| birch |
Betula spp. |
3 |
| birch leafminer |
Fenusa pusilla |
3 |
| birch skeletonizer |
Bucculatrix canadensisella |
2 |
| Bismarck palm |
Bismarckia nobilis |
4 |
| bitter rot and anthracnose |
Colletotrichum gloeosporioides |
1 |
| bitternut hickory |
Carya cordiformis |
1 |
| black cherry |
Prunus serotina |
2 |
| black cherry aphid |
Myzus cerasi |
1 |
| black knot |
Apiosporina morbosa |
3 |
| black locust |
Robinia pseudoacacia |
12 |
| black maple |
Acer nigrum |
2 |
| black oak |
Quercus velutina |
3 |
| black pecan aphid |
Melanocallis caryaefoliae |
1 |
| black pineleaf scale |
Dynaspidiotus californica |
1 |
| black poui |
Jacaranda mimosifolia |
2 |
| black scale |
Saissetia oleae |
2 |
| black spot of elm |
Stegophora ulmea |
1 |
| black twig borer |
Xylosandrus compactus |
2 |
| black walnut |
Juglans nigra |
3 |
| black-veined white butterfly |
Aporia crataegi |
1 |
| blackgum |
Nyssa sylvatica |
1 |
| blackjack oak |
Quercus marilandica |
2 |
| bloodtwig dogwood |
Cornus sanguinea |
10 |
| blue ash |
Fraxinus quadrangulata |
3 |
| blue fan palm |
Brahea armata |
1 |
| blue spruce |
Picea pungens |
5 |
| blue stain |
Ophiostoma ips |
1 |
| boron deficiency |
|
1 |
| Botryosphaeria canker |
Botryosphaeria dothidea |
5 |
| Botryosphaeria canker |
Botryosphaeria ribis |
2 |
| Botryosphaeria rots and cankers |
Botryosphaeria spp. |
1 |
| bottle-palm |
Beaucarnea spp. |
1 |
| bottlebrush |
Callistemon viminalis |
3 |
| bottlebrush buckeye |
Aesculus parviflora |
3 |
| boxelder |
Acer negundo |
7 |
| boxwood |
Buxus spp. |
1 |
| Braconid wasp |
Atanycolus cappaerti |
1 |
| bristlecone pine |
Pinus aristata |
3 |
| bronze birch borer |
Agrilus anxius |
2 |
| brown felt blight of pines |
Neopeckia coulteri |
2 |
| brown root rot |
Phellinus noxius |
1 |
| brown spot needle blight of pine |
Mycosphaerella dearnessii |
1 |
| browntail moth |
Euproctis chrysorrhoea |
1 |
| buckeye |
Aesculus spp. |
4 |
| buko |
Gnetum gnemon |
1 |
| bumelias buckthorn |
Bumelia spp. |
1 |
| bunya pine |
Araucaria bidwillii |
1 |
| bur oak |
Quercus macrocarpa |
2 |
| butternut |
Juglans cinerea |
1 |
| butternut canker |
Sirococcus clavigignenti-juglandacearum |
5 |
| California buckeye |
Aesculus californica |
9 |
| California fan palm |
Washingtonia filifera |
1 |
| Callery pear (Bradford pear) |
Pyrus calleryana |
17 |
| Canadian serviceberry |
Amelanchier canadensis |
1 |
| Canary Island date palm |
Phoenix canariensis |
3 |
| canker |
|
1 |
| carbon balls |
Daldinia concentrica |
1 |
| Carolina laurelcherry |
Prunus caroliniana |
7 |
| casebearer moths |
Coleophora spp. |
2 |
| cat (domestic) |
Felis catus (domestic type) |
1 |
| Caucasian fir |
Abies nordmanniana |
1 |
| cedar |
Chamaecyparis spp. |
2 |
| cedar-apple rust |
Gymnosporangium juniperi-virginianae |
8 |
| cedar-of-lebanon |
Cedrus libani |
4 |
| Cenangium canker |
Cenangium singulare |
1 |
| Ceratocystis canker - stain of sycamore |
Ceratocystis fimbriata f.sp. platani |
3 |
| Cercospora fungus |
Cercospora cercidicola |
1 |
| Cercospora fungus |
Cercospora destructiva |
1 |
| Cercospora leaf spot |
Cercospora liquidambaris |
1 |
| chalk maple |
Acer leucoderme |
11 |
| cherry birch |
Betula lenta |
6 |
| cherry plum |
Prunus cerasifera |
2 |
| cherrybark oak |
Quercus pagoda |
1 |
| chestnut |
Castanea spp. |
1 |
| chestnut blight or canker |
Cryphonectria parasitica |
3 |
| Chickasaw plum |
Prunus angustifolia |
2 |
| chilli thrips |
Scirtothrips dorsalis |
1 |
| chinaberry |
Melia azedarach |
1 |
| Chinese elm |
Ulmus parvifolia |
1 |
| Chinese fir |
Cunninghamia lanceolata |
1 |
| Chinese fringetree |
Chionanthus retusus |
6 |
| Chinese holly |
Ilex cornuta |
10 |
| Chinese pistache |
Pistacia chinensis |
1 |
| chinese redbud |
Cercis chinensis |
1 |
| Chinese tallowtree |
Triadica sebifera |
1 |
| chinkapin oak |
Quercus muehlenbergii |
5 |
| chinquapin |
Castanopsis cuspidata |
1 |
| chinquapin |
Castanopsis sclerophylla |
2 |
| chlorosis (general symptom) |
|
1 |
| citrus longhorned beetle |
Anoplophora chinensis |
1 |
| coconut palm |
Cocos nucifera |
3 |
| cold injury (low temperature) |
|
3 |
| common chokecherry |
Prunus virginiana |
3 |
| common elderberry |
Sambucus nigra |
1 |
| common hackberry |
Celtis occidentalis |
6 |
| common horse chestnut |
Aesculus hippocastanum |
4 |
| Compton's oak |
Quercus x comptoniae |
8 |
| construction |
|
5 |
| cooley spruce gall adelgid |
Adelges cooleyi |
1 |
| cork oak |
Quercus suber |
7 |
| corkscrew willow |
Salix matsudana |
2 |
| Corticium fungus |
Corticium salmonicolor |
2 |
| cottonwood leaf beetle |
Chrysomela scripta |
3 |
| crabapple and apple |
Malus spp. |
17 |
| crack willow |
Salix fragilis |
1 |
| crimson bottlebrush |
Callistemon citrinus |
1 |
| crown gall |
Rhizobium radiobacter |
21 |
| Cryptosphaeria canker |
Cryptosphaeria ligniota |
1 |
| cui bai |
Calocedrus macrolepis |
7 |
| currant borer |
Synanthedon tipuliformis |
1 |
| Cylindrocladium blight and root rot |
Cylindrocladium scoparium |
19 |
| Cylindrocladium fungus |
Cylindrocladium ellipticum |
2 |
| Cylindrocladium root diseases |
Cylindrocladium spp. |
3 |
| cypress pine |
Callitris rhomboidea |
1 |
| Cytospora cankers |
Cytospora spp. |
4 |
| date palm |
Phoenix dactylifera |
1 |
| dawn redwood |
Metasequoia glyptostroboides |
5 |
| deer |
|
1 |
| Deodar cedar |
Cedrus deodara |
18 |
| desert ironwood |
Olneya tesota |
2 |
| devil's walkingstick |
Aralia spinosa |
9 |
| devilwood |
Osmanthus americanus |
5 |
| dieback |
|
1 |
| Diplodia blight |
Sphaeropsis sapinea |
3 |
| dogwood anthracnose |
Discula destructiva |
12 |
| dogwood twig borer |
Oberea tripunctata |
4 |
| Dothichiza canker |
Dothichiza populea |
1 |
| dothichiza canker of poplar |
Cryptodiaporthe populea |
1 |
| Dothistroma needle blight |
Mycosphaerella pini |
2 |
| Douglas-fir |
Pseudotsuga menziesii |
5 |
| Douglas-fir tussock moth |
Orgyia pseudotsugata |
1 |
| downy birch |
Betula pubescens |
1 |
| downy oak |
Quercus pubescens |
3 |
| dragontree |
Dracaena marginata |
2 |
| drainage |
|
1 |
| drippy blight |
Lonsdalea quercina |
2 |
| drought |
|
6 |
| Dutch elm disease |
Ophiostoma ulmi |
9 |
| Dutch elm disease (novi-ulmi) |
Ophiostoma novo-ulmi |
2 |
| eastern arborvitae |
Thuja occidentalis |
4 |
| eastern ash bark beetle |
Hylesinus aculeatus |
3 |
| eastern hemlock |
Tsuga canadensis |
1 |
| eastern pine weevil |
Pissodes nemorensis |
2 |
| eastern redbud |
Cercis canadensis |
33 |
| eastern redcedar |
Juniperus virginiana |
7 |
| eastern subterranean termite |
Reticulitermes flavipes |
1 |
| eastern sweetshrub |
Calycanthus floridus |
1 |
| eastern tent caterpillar |
Malacosoma americanum |
2 |
| eastern white pine |
Pinus strobus |
4 |
| Ectoedemia liebwerdella |
Ectoedemia liebwerdella |
1 |
| elder borer |
Desmocerus palliatus |
1 |
| elegant maple |
Acer elegantulum |
5 |
| elm leaf beetle |
Xanthogaleruca luteola |
2 |
| elm sawfly |
Cimbex americana |
2 |
| elm spanworm |
Ennomos subsignaria |
1 |
| emerald ash borer |
Agrilus planipennis |
48 |
| Engelmann spruce |
Picea engelmannii |
4 |
| English boxwood |
Buxus sempervirens |
1 |
| English elm |
Ulmus procera |
2 |
| English hawthorn |
Crataegus monogyna |
5 |
| English oak |
Quercus robur |
7 |
| English yew |
Taxus baccata |
1 |
| epicormic branch |
|
1 |
| eucalyptus weevil |
Gonipterus scutellatus |
1 |
| euonymus scale |
Unaspis euonymi |
2 |
| European alder |
Alnus glutinosa |
2 |
| European ash |
Fraxinus excelsior |
1 |
| European beech |
Fagus sylvatica |
14 |
| European bird cherry |
Prunus padus |
4 |
| European buckthorn |
Rhamnus cathartica |
2 |
| European chafer |
Amphimallon majale |
1 |
| European crabapple |
Malus sylvestris |
7 |
| European elm flea weevil |
Orchestes alni |
4 |
| European elm leafcurl aphid |
Eriosoma ulmi |
1 |
| European elm scale |
Eriococcus spuria |
4 |
| European elm scale |
Gossyparia spuria |
2 |
| European fan palm |
Chamaerops humilis |
1 |
| European fruit lecanium |
Parthenolecanium corni |
3 |
| European hornbeam |
Carpinus betulus |
8 |
| European mountain-ash |
Sorbus aucuparia |
4 |
| European pine sawfly |
Neodiprion sertifer |
2 |
| European white birch |
Betula pendula |
24 |
| Eutypella canker |
Eutypella parasitica |
4 |
| fall color |
|
9 |
| fall webworm |
Hyphantria cunea |
7 |
| false armored scale |
Conchaspis cordiae |
5 |
| false tinder polypore |
Phellinus igniarius |
2 |
| Father David's maple |
Acer davidii |
2 |
| fertilization |
|
1 |
| fig/banyan |
Ficus spp. |
2 |
| Fiji fan palm |
Pritchardia pacifica |
1 |
| fire |
|
1 |
| fire blight |
Erwinia amylovora |
32 |
| flatheaded appletree borer |
Chrysobothris femorata |
3 |
| flatheaded borer |
Poecilonota thureura |
1 |
| flatid planthopper |
|
3 |
| fletcher scale |
Parthenolecanium fletcheri |
1 |
| flooding/high water |
|
1 |
| Florida hobblebush |
Agarista populifolia |
2 |
| Florida strangler fig |
Ficus aurea |
3 |
| flowering ash |
Fraxinus ornus |
1 |
| flowering dogwood |
Cornus florida |
15 |
| forest tent caterpillar |
Malacosoma disstria |
4 |
| formosan cypress |
Chamaecyparis formosensis |
1 |
| fourlined plant bug |
Poecilocapsus lineatus |
1 |
| fox squirrel |
Sciurus niger |
6 |
| Freeman maple |
Acer x freemanii |
16 |
| fringed wattle |
Acacia fimbriata |
2 |
| frost and winter injury (general) |
|
8 |
| fusiform rust |
Cronartium quercuum f.sp. fusiforme |
1 |
| gall midge |
Dryomia circinnans |
1 |
| gall midge |
Janetia cerris |
1 |
| Gambel oak |
Quercus gambelii |
3 |
| Ganoderma butt rot of palm |
Ganoderma zonatum |
1 |
| Ganoderma root and butt rot |
Ganoderma lucidum |
2 |
| gardens |
|
1 |
| giant coccids |
Xylococculus quercus |
1 |
| giant root borers |
Prionus spp. |
1 |
| giant sequoia |
Sequoiadendron giganteum |
4 |
| giant willow aphid |
Tuberolachnus salignus |
1 |
| ginkgo |
Ginkgo biloba |
5 |
| goat willow |
Salix caprea |
1 |
| goldenrain tree |
Koelreuteria bipinnata |
5 |
| granulate ambrosia beetle |
Xylosandrus crassiusculus |
7 |
| Graphiola leaf spot |
Graphiola phoenicis |
1 |
| green alga |
Cephaleuros virescens |
15 |
| green ash |
Fraxinus pennsylvanica |
12 |
| greenstriped mapleworm |
Dryocampa rubicunda |
2 |
| gulf fritillary |
Agraulis vanillae |
3 |
| gypsy moth |
Lymantria dispar |
27 |
| hackberry witches' broom |
|
1 |
| hapu'u li |
Cibotium menziesii |
1 |
| Harrington's cephalotaxus |
Cephalotaxus harringtonia |
1 |
| hawthorn |
Crataegus spp. |
5 |
| hawthorn agrilus |
Agrilus crataegi |
2 |
| hawthorn mealybug |
Phenacoccus dearnessi |
1 |
| hazel alder |
Alnus serrulata |
6 |
| hazel leaf-roller |
Byctiscus betulae |
3 |
| hedge maple |
Acer campestre |
5 |
| hemlock woolly adelgid |
Adelges tsugae |
1 |
| hickory |
Carya spp. |
5 |
| hickory horned devil |
Citheronia regalis |
1 |
| himalayan birch |
Betula utilis var. jacquemontii |
3 |
| hinoki false cypress |
Chamaecyparis obtusa |
10 |
| hispidus canker |
Inonotus hispidus |
4 |
| honeylocust |
Gleditsia triacanthos |
1 |
| hophornbeam |
Ostrya virginiana |
1 |
| Horace's duskywing |
Erynnis horatius |
1 |
| hornbeam |
Carpinus spp. |
3 |
| horned oak gall |
Callirhytis cornigera |
1 |
| horse chestnut leafminer |
Cameraria ohridella |
1 |
| human caused injury |
|
5 |
| hurricane |
|
2 |
| hybrid strawberry tree |
Arbutus x andrachnoides |
1 |
| Hypoxylon canker of aspen |
Entoleuca mammata |
1 |
| Hypoxylon canker of oak |
Biscogniauxia atropunctata atropunctata |
2 |
| illawarra pine |
Callitris muelleri |
1 |
| imbedded objects |
|
4 |
| imported willow leaf beetle |
Plagiodera versicolora |
4 |
| incense cedar broom rust |
Gymnosporangium libocedri |
1 |
| incense-cedar |
Calocedrus decurrens |
7 |
| included bark |
|
1 |
| Indonesian gum |
Eucalyptus deglupta |
3 |
| Inonotus canker |
Inonotus ludovicianus |
1 |
| Inonotus canker |
Inonotus nidus-pici |
1 |
| Inonotus heartrot |
Inonotus rickii |
4 |
| inrolled crack |
|
1 |
| introduced basswood thrips |
Thrips calcaratus |
2 |
| iron deficiency |
|
2 |
| ISA EGS |
|
1 |
| ISA Publications |
|
2 |
| Italian alder |
Alnus cordata |
1 |
| Ivory-marked beetle |
Eburia quadrigeminata |
1 |
| jack pine budworm |
Choristoneura pinus pinus |
1 |
| jack pine sawfly |
Neodiprion pratti banksianae |
1 |
| Japanese alder |
Alnus japonica |
1 |
| Japanese angelica tree |
Aralia elata |
1 |
| Japanese beetle |
Popillia japonica |
8 |
| Japanese cedar |
Cryptomeria japonica |
5 |
| Japanese falsecypress |
Chamaecyparis pisifera |
15 |
| Japanese fir |
Abies firma |
22 |
| Japanese flowering cherry |
Prunus serrulata |
12 |
| Japanese maple |
Acer palmatum |
21 |
| Japanese pagoda tree |
Styphnolobium japonicum |
4 |
| Japanese pear rust |
Gymnosporangium asiaticum |
1 |
| Japanese pine sawyer |
Monochamus alternatus |
1 |
| Japanese privet |
Ligustrum japonicum |
1 |
| Japanese red pine |
Pinus densiflora |
1 |
| Japanese zelkova eriophyid mite |
Aceria zelkoviana |
10 |
| jelly palm |
Butia capitata |
2 |
| Kalkora mimosa |
Albizia kalkora |
5 |
| katsura tree |
Cercidiphyllum japonicum |
9 |
| katsura tree |
Cercidiphyllum spp. |
1 |
| kauri |
Agathis australis |
2 |
| Kentucky coffeetree |
Gymnocladus dioicus |
1 |
| Kentucky yellowwood |
Cladrastis kentukea |
7 |
| Kobus magnolia |
Magnolia kobus |
8 |
| korean fir |
Abies koreana |
1 |
| Kowhai |
Sophora tetraptera |
1 |
| Kutilakesa fungus |
Kutilakesa madreeya |
2 |
| Kutilakesa fungus |
Kutilakesa pironii |
1 |
| lackey moth |
Malacosoma neustria |
1 |
| lady palm |
Rhapis excelsa |
1 |
| lagerstroemia |
Lagerstroemia spp. |
1 |
| larch casebearer |
Coleophora laricella |
2 |
| larch sawfly |
Pristiphora erichsonii |
1 |
| large larch bark beetle |
Ips cembrae |
2 |
| large timberworm |
Elateroides dermestoides |
1 |
| largeleaf linden |
Tilia platyphyllos |
1 |
| larger elm leaf beetle |
Monocesta coryli |
1 |
| laurel wilt |
Raffaelea lauricola |
4 |
| leaf beetle |
Crepidodera pluta |
1 |
| leaf blotch miner moth |
|
1 |
| leaf rolling weevil |
Byctiscus populi |
1 |
| leaf scorch of shade trees |
Xylella fastidiosa ssp. multiplex |
1 |
| leaf shotholes |
Cylindrosporium spp. |
6 |
| leaf spot |
Ceratobasidium stevensii |
1 |
| leaf spot |
Passalora sequoiae |
27 |
| leaf spot |
Tubakia dryina |
2 |
| lemonscented gum |
Corymbia citriodora |
1 |
| Leptographium root disease |
Leptographium procerum |
1 |
| lesser peachtree borer |
Synanthedon pictipes |
1 |
| leucaena psyllid |
Heteropsylla cubana |
1 |
| Leucostoma canker of spruce |
Leucostoma kunzei |
1 |
| Leyland cypress |
x Cupressocyparis leylandii |
4 |
| liang ye hua |
Betula luminifera |
3 |
| lichen |
|
2 |
| lichen |
Strigula smaragdula |
8 |
| lightning |
|
6 |
| limber pine |
Pinus flexilis |
4 |
| linden |
Tilia spp. |
4 |
| linden borer |
Saperda vestita |
1 |
| live oak |
Quercus virginiana |
5 |
| loblolly pine |
Pinus taeda |
1 |
| locust borer |
Megacyllene robiniae |
5 |
| lodgepole terminal weevil |
Pissodes terminalis |
1 |
| Lombardy poplar |
Populus nigra |
1 |
| London planetree |
Platanus hybrida |
3 |
| long-horned beetles |
Xylotrechus spp. |
1 |
| longleaf pine |
Pinus palustris |
11 |
| longtailed mealybug |
Pseudococcus longispinus |
4 |
| loquat |
Eriobotrya japonica |
1 |
| lychee |
Litchi chinensis |
1 |
| macaw palm |
Acrocomia aculeata |
2 |
| magnolia |
Magnolia spp. |
1 |
| magnolia scale |
Neolecanium cornuparvum |
1 |
| manchurian fir |
Abies holophylla |
1 |
| Manila palm |
Veitchia merrillii |
2 |
| maple |
Acer oliverianum |
4 |
| maple |
Acer oliverianum ssp. oliverianum |
2 |
| maple |
Acer oliverianum subsp. formosanum |
14 |
| maple |
Acer spp. |
7 |
| maple |
Acer tegmentosum |
1 |
| maple callus borer |
Synanthedon acerni |
1 |
| May-June beetles |
Phyllophaga spp. |
2 |
| mealy plum aphid |
Hyalopterus pruni |
1 |
| mealybug destroyer |
Cryptolaemus montrouzieri |
1 |
| mechanical |
|
4 |
| Melampsora rusts |
Melampsora spp. |
1 |
| metalic wood-boring beetles |
Agrilus spp. |
1 |
| mexican summersweet |
Clethra pringlei |
5 |
| mimosa |
Albizia julibrissin |
1 |
| mimosa wilt |
Fusarium oxysporum f.sp. perniciosum |
17 |
| mite |
Phytoptus avellanae |
1 |
| mockernut hickory |
Carya tomentosa |
9 |
| monkeypuzzle tree |
Araucaria araucana |
4 |
| Monochaetia fungi |
Monochaetia spp. |
2 |
| Monterey cypress |
Cupressus macrocarpa |
1 |
| Monterey pine aphid |
Essigella californica |
2 |
| Montezuma baldcypress |
Taxodium mucronatum |
1 |
| Moreton Bay pine |
Araucaria cunninghamii |
1 |
| mottled umber moth |
Erannis defoliaria |
1 |
| mountain maple |
Acer spicatum |
1 |
| mountain pine beetle |
Dendroctonus ponderosae |
5 |
| mountain silverbell |
Halesia tetraptera |
1 |
| mountain witchalder |
Fothergilla major |
1 |
| mourning cloak butterfly |
Nymphalis antiopa |
2 |
| mourning-cypress |
Chamaecyparis funebris |
1 |
| mugo pine |
Pinus mugo |
1 |
| mukutree |
Aphananthe aspera |
8 |
| mule deer |
Odocoileus hemionus |
2 |
| Mycosphaerella fungi |
Mycosphaerella spp. |
4 |
| naio |
Myoporum sandwicense |
1 |
| nannyberry |
Viburnum lentago |
3 |
| narrow-winged tree cricket |
Oecanthus niveus |
1 |
| needle blight |
Cercospora pini-densiflorae |
1 |
| needle cast |
Lophodermium seditiosum |
1 |
| Neonectria canker |
Neonectria galligena |
3 |
| Nepal alder |
Alnus nepalensis |
6 |
| New Caledonia pine |
Araucaria columnaris |
1 |
| New Mexico locust |
Robinia neomexicana |
1 |
| Norfolk island pine |
Araucaria heterophylla |
5 |
| northern catalpa |
Catalpa speciosa |
9 |
| northern pitch twig moth |
Retinia albicapitana |
2 |
| northern red oak |
Quercus rubra |
4 |
| Norway maple |
Acer platanoides |
13 |
| Norway spruce |
Picea abies |
7 |
| nuclear polyhedrosis virus |
Nucleopolyhedrovirus |
1 |
| nutrient deficiency |
|
1 |
| Nuttall oak |
Quercus texana |
1 |
| oak |
Quercus spp. |
2 |
| oak anthracnose |
Apiognomonia errabunda |
1 |
| oak apple gall wasp |
Biorhiza pallida |
1 |
| oak leaf blister |
Taphrina caerulescens |
1 |
| oak lecanium |
Parthenolecanium quercifex |
2 |
| oak processionary moth |
Thaumetopoea processionea |
1 |
| oak wilt |
Ceratocystis fagacearum |
12 |
| obscure scale |
Melanaspis obscura |
1 |
| Ogeechee tupelo |
Nyssa ogeche |
2 |
| olive |
Olea europaea |
8 |
| oneseed juniper |
Juniperus monosperma |
1 |
| oriental beetle |
Anomala orientalis |
2 |
| osage-orange |
Maclura pomifera |
1 |
| overcup oak |
Quercus lyrata |
5 |
| oyster mushroom |
Pleurotus ostreatus |
1 |
| oystershell scale |
Lepidosaphes ulmi |
2 |
| ozone |
|
1 |
| painted buckeye |
Aesculus sylvatica |
1 |
| painted hickory borer |
Megacyllene caryae |
2 |
| pales weevil |
Hylobius pales |
1 |
| palm moth |
Paysandisia archon |
5 |
| palmerworm |
Dichomeris ligulella |
1 |
| papaya |
Carica papaya |
1 |
| papaya mealybug |
Paracoccus marginatus |
3 |
| paper birch |
Betula papyrifera |
5 |
| paperbark maple |
Acer griseum |
15 |
| parana pine |
Araucaria angustifolia |
6 |
| parasol leaf tree |
Macaranga tanarius |
3 |
| pauper's-tea |
Sageretia thea |
1 |
| pawpaw |
Asimina triloba |
12 |
| pearleaf blister mite |
Eriophyes pyri |
1 |
| pecan |
Carya illinoinensis |
6 |
| pecan catocala |
Catocala spp. |
1 |
| pecan leaf casebearer |
Acrobasis juglandis |
1 |
| pecan nut casebearer |
Acrobasis nuxvorella |
1 |
| pecan serpentine leafminer |
Stigmella judlandifoliella |
2 |
| pecan spittlebug |
Clastoptera achatina |
1 |
| pecan weevil |
Curculio caryae |
5 |
| periodical cicada |
Magicicada septendecim |
2 |
| pesticides |
|
4 |
| Phaeoisariopsis fungus |
Phaeoisariopsis magnoliae |
1 |
| Phellinus fungus |
Phellinus pomaceus |
1 |
| Phellinus heartrots |
Phellinus spp. |
1 |
| Phomopsis blight |
Phomopsis juniperivora |
1 |
| Phytophthora basal canker |
Phytophthora palmivora |
6 |
| Phytophthora blight |
Phytophthora nicotianae |
1 |
| Phytophthora kernoviae |
Phytophthora kernoviae |
7 |
| Phytophthora root rot |
Phytophthora cactorum |
1 |
| Phytophthora root rot |
Phytophthora cinnamomi |
10 |
| Pigmy cypress-pine |
Callitris oblonga |
5 |
| pignut hickory |
Carya glabra |
2 |
| pin oak |
Quercus palustris |
5 |
| pine bark adelgid |
Pineus strobi |
3 |
| pine beauty moth |
Panolis flammea |
1 |
| pine catkin sawflies |
Xyela spp. |
1 |
| pine needle rusts |
Coleosporium spp. |
1 |
| pine needle scale |
Chionaspis pinifoliae |
2 |
| pine tortoise scale |
Toumeyella parvicornis |
4 |
| pine wilt nematode |
Bursaphelenchus xylophilus |
2 |
| pineapple-guava |
Acca sellowiana |
1 |
| pinhole borer |
Platypus spp. |
1 |
| pink hibiscus mealybug |
Maconellicoccus hirsutus |
1 |
| pink trumpet-tree |
Tabebuia rosea |
1 |
| pinyon needle scale |
Matsucoccus acalyptus |
1 |
| planting |
|
2 |
| planting too deep |
|
1 |
| plum/cherry |
Prunus spp. |
3 |
| plumeria |
Plumeria spp. |
1 |
| polyphemus moth |
Antheraea polyphemus |
1 |
| polypore fungus |
Polyporus arcularius |
1 |
| pomegranate |
Punica granatum |
1 |
| ponderosa pine |
Pinus ponderosa var. scopulorum |
5 |
| poor architecture |
|
1 |
| poplar vagabond aphid |
Mordvilkoja vagabunda |
1 |
| Port Orford cedar |
Chamaecyparis lawsoniana |
3 |
| powdery mildew |
Erysiphe spp. |
1 |
| powdery mildew |
Microsphaera penicillata |
2 |
| powdery mildew |
Oidium spp. |
5 |
| powdery mildew |
Sphaerotheca phytoptophila |
1 |
| powdery mildew of oak |
Microsphaera alphitoides |
1 |
| powdery mildews |
|
1 |
| primavera |
Tabebuia donnell-smithii |
1 |
| princesstree |
Paulownia tomentosa |
3 |
| pruning (general) |
|
5 |
| purpleblow maple |
Acer truncatum |
1 |
| quaking aspen |
Populus tremuloides |
5 |
| queen palm |
Arecastrum romanzoffianum |
2 |
| queen sago |
Cycas circinalis |
1 |
| quince rust |
Gymnosporangium clavipes |
2 |
| radiation |
|
1 |
| raintree |
Samanea saman |
3 |
| rat, vole, mouse |
|
1 |
| red buckeye |
Aesculus pavia |
13 |
| red chokeberry |
Photinia pyrifolia |
1 |
| red heart of pine |
Phellinus pini |
1 |
| red hickory |
Carya ovalis |
2 |
| red maple |
Acer rubrum |
202 |
| red oak borer |
Enaphalodes rufulus |
3 |
| red pine |
Pinus resinosa |
1 |
| red pine cone borer |
Eucosma monitorana |
1 |
| redbay ambrosia beetle |
Xyleborus glabratus |
1 |
| redbud |
Cercis chingii |
1 |
| redbud |
Cercis racemosa |
1 |
| redbud |
Cercis spp. |
3 |
| redheaded ash borer |
Neoclytus acuminatus |
5 |
| redheaded pine sawfly |
Neodiprion lecontei |
1 |
| redosier dogwood |
Cornus sericea |
2 |
| Rhabdocline needlecast |
Rhabdocline weirii |
1 |
| rhinoceros beetle |
Xyloryctes jamaicensis |
1 |
| Rhizosphaera needle cast |
Rhizosphaera kalkhoffii |
2 |
| ribbed pine borer |
Rhagium inquisitor |
2 |
| Rimosus decay |
Phellinus robiniae |
1 |
| risk tree |
|
1 |
| river birch |
Betula nigra |
30 |
| Rocky Mountain juniper |
Juniperus scopulorum |
4 |
| root aphid |
Prociphilus americanus |
1 |
| root problems |
|
1 |
| root-knot nematode |
Meloidogyne incognita |
1 |
| roundheaded apple tree borer |
Saperda candida |
1 |
| ruffled fan palm |
Licuala grandis |
1 |
| rust |
Coleosporium plumeriae |
1 |
| sago palm |
Cycas revoluta |
1 |
| Sandberg's birch |
Betula x sandbergii |
3 |
| sapsucker injury |
|
1 |
| Saratoga spittlebug |
Aphrophora saratogensis |
2 |
| sassafras |
Sassafras albidum |
4 |
| saucer magnolia |
Magnolia x soulangiana |
1 |
| sawflies |
Caliroa spp. |
1 |
| sawtooth oak |
Quercus acutissima |
17 |
| scarab beetle |
Phyllophaga falsa |
3 |
| scarlet oak |
Quercus coccinea |
1 |
| scepter holly |
Ilex x 'Scepter' |
1 |
| Scots pine |
Pinus sylvestris |
1 |
| Scottish asphodel |
Clusia rosea |
1 |
| sea hibiscus |
Hibiscus tiliaceus |
1 |
| seasian wood |
Cinnamomum parthenoxylon |
1 |
| Seiridium canker of Monterey cypress |
Seiridium cardinale |
1 |
| Seiridium cankers |
Seiridium spp. |
5 |
| Septoria leaf spot |
Septoria cornicola |
1 |
| Serbian spruce |
Picea omorika |
1 |
| serviceberry |
Amelanchier arborea |
4 |
| serviceberry |
Amelanchier spp. |
4 |
| shagbark hickory |
Carya ovata |
2 |
| shear crack |
|
1 |
| sheep |
Ovis aries |
2 |
| sheoak |
Casuarina spp. |
1 |
| shepherd's crook leaf and shoot blight |
Venturia tremulae |
2 |
| shingle oak |
Quercus imbricaria |
2 |
| Siberian elm |
Ulmus pumila |
3 |
| silk-floss tree |
Chorisia speciosa |
3 |
| silver fir |
Abies alba |
1 |
| silver maple |
Acer saccharinum |
7 |
| Sirococcus blight of conifers |
Sirococcus conigenus |
3 |
| sixspined ips |
Ips calligraphus |
1 |
| slime flux |
|
2 |
| slippery elm |
Ulmus rubra |
1 |
| small Philippine acacia |
Acacia confusa |
1 |
| small southern pine engraver |
Ips avulsus |
1 |
| smaller European elm bark beetle |
Scolytus multistriatus |
9 |
| smooth patch of oak |
Aleurodiscus oakesii |
3 |
| snow and ice damage (snow load) |
|
3 |
| soapberry borer |
Agrilus prionurus |
15 |
| soft scale |
Neopulvinaria innumerabilis |
4 |
| sooty mold |
|
1 |
| southern blight |
Sclerotium rolfsii |
1 |
| Southern California walnut |
Juglans californica |
2 |
| southern catalpa |
Catalpa bignonioides |
5 |
| southern crabapple |
Malus angustifolia |
2 |
| southern magnolia |
Magnolia grandiflora |
4 |
| southern pine beetle |
Dendroctonus frontalis |
2 |
| southern pine sawyer |
Monochamus titillator |
1 |
| southern sugar maple |
Acer barbatum |
29 |
| southern waxmyrtle |
Morella cerifera |
5 |
| Spanish moss |
Tillandsia usneoides |
1 |
| spider mites |
|
1 |
| spot anthracnose |
Elsinoe corni |
7 |
| spruce bud scale |
Physokermes piceae |
1 |
| spruce coneworm |
Dioryctria abietella |
1 |
| spruce spider mite |
Oligonychus ununguis |
5 |
| squirrel |
Sciurus spp. |
1 |
| stem girdling roots |
|
3 |
| Stigmina leaf spot |
Stigmina palmivora |
1 |
| storm damage (general) |
|
1 |
| strawberry tree |
Arbutus unedo |
3 |
| striped maple |
Acer pensylvanicum |
2 |
| Strumella canker |
Urnula craterium |
1 |
| subalpine fir |
Abies lasiocarpa |
4 |
| sudden oak death |
Phytophthora ramorum |
8 |
| sugar maple |
Acer saccharum |
23 |
| sugarberry |
Celtis laevigata |
2 |
| sulfur shelf |
Laetiporus sulphureus |
1 |
| sumac stem borer |
Oberea ocellata |
1 |
| sunscald |
|
5 |
| sweet acacia |
Acacia farnesiana |
1 |
| sweetbay |
Magnolia virginiana |
5 |
| sweetgum |
Liquidambar spp. |
1 |
| sweetgum |
Liquidambar styraciflua |
10 |
| sweetheart tree |
Euscaphis japonica |
1 |
| sycamore dieback |
|
3 |
| Sycamore maple |
Acer pseudoplatanus |
9 |
| Taiwan cui bai |
Calocedrus formosana |
2 |
| tamarack |
Larix laricina |
1 |
| tanbark borer |
Phymatodes testaceus |
4 |
| tar spot |
Rhytisma salicinum |
1 |
| tatarian maple |
Acer tataricum |
4 |
| tea scale |
Fiorinia theae |
1 |
| termites |
|
5 |
| thick-walled maze polypore |
Daedalea quercina |
1 |
| Thousand Cankers Disease |
Geosmithia morbida |
7 |
| thrips |
Holopothrips tabebuia |
6 |
| Thyronectria canker |
Thyronectria austroamericana |
4 |
| tinder fungus |
Fomes fomentarius |
1 |
| topping |
|
1 |
| transplant shock |
|
2 |
| tree spade |
|
4 |
| tree-of-heaven |
Ailanthus altissima |
3 |
| trident maple |
Acer buergerianum |
10 |
| tropical almond |
Terminalia catappa |
1 |
| trunk rot |
Peniophora rufa |
1 |
| trunk rot |
Pholiota populnea |
1 |
| tuliptree scale |
Toumeyella liriodendri |
1 |
| tungoil tree |
Vernicia fordii |
6 |
| turf (general) |
|
1 |
| turkey tail |
Trametes versicolor |
1 |
| twig canker |
Lepteutypa cupressi |
1 |
| two needle pinyon |
Pinus edulis |
3 |
| two-wing silverbell |
Halesia diptera |
2 |
| twolined chestnut borer |
Agrilus bilineatus |
1 |
| umbrella magnolia |
Magnolia tripetala |
8 |
| unknown |
|
1 |
| urban ecosystem |
|
4 |
| variegated fritillary |
Euptoieta claudia |
1 |
| Verticillium wilts |
Verticillium spp. |
5 |
| Virginia roundleaf birch |
Betula uber |
1 |
| vole |
Microtus spp. |
2 |
| walnut caterpillar |
Datana integerrima |
6 |
| walnut catkingall mite |
Eriophyes neobeevori |
1 |
| walnut scale |
Diaspidiotus juglansregiae |
2 |
| walnut twig beetle |
Pityophthorus juglandis |
1 |
| Washington fan palm |
Washingtonia robusta |
1 |
| water birch |
Betula occidentalis |
3 |
| water hickory |
Carya aquatica |
1 |
| wax scale |
Parthenolecanium pruinosum |
5 |
| wax scales |
Ceroplastes spp. |
1 |
| weeping fig |
Ficus benjamina |
1 |
| western drywood termite |
Incisitermes minor |
1 |
| western gall rust |
Endocronartium harknessii |
2 |
| western red cedar |
Thuja plicata |
4 |
| western redbud |
Cercis canadensis var. texensis |
3 |
| western soapberry |
Sapindus saponaria var. drummondii |
4 |
| western tent caterpillar |
Malacosoma californicum |
1 |
| wetwood |
|
1 |
| white alder |
Alnus rhombifolia |
4 |
| white ash |
Fraxinus americana |
1 |
| white cypress-pine |
Callitris columellaris |
8 |
| white fir |
Abies concolor |
6 |
| white fringetree |
Chionanthus virginicus |
8 |
| white heartwood rot |
Phellinus tremulae |
2 |
| white mulberry |
Morus alba |
2 |
| white oak |
Quercus alba |
1 |
| white peach scale |
Pseudaulacaspis pentagona |
2 |
| white pine blister rust |
Cronartium ribicola |
1 |
| white pine weevil |
Pissodes strobi |
8 |
| white poplar |
Populus alba |
4 |
| white prunicola scale |
Pseudaulacaspis prunicola |
1 |
| white willow |
Salix alba |
2 |
| white-rot fungus |
Trametes pubescens |
1 |
| white-spotted longicorn beetle |
Anoplophora chinensis malasiaca |
2 |
| whiteflower kurrajong |
Brachychiton populneum |
1 |
| whitemarked tussock moth |
Orgyia leucostigma |
2 |
| Whitespire |
Betula platyphylla var. japonica |
10 |
| willow |
Salix rosmarinifolia |
1 |
| willow oak |
Quercus phellos |
3 |
| willow scale |
Diaspidiotus gigas |
1 |
| winged elm |
Ulmus alata |
10 |
| winter moth |
Operophtera brumata |
2 |
| witch-hazel |
Hamamelis virginiana |
1 |
| witches' broom |
|
1 |
| woman's tongue tree |
Albizia lebbeck |
1 |
| wood borers |
|
1 |
| wood decay and heart rots of hardwoods |
Fomes spp. |
2 |
| woolly apple aphid |
Eriosoma lanigerum |
5 |
| woolly elm aphid |
Eriosoma americanum |
1 |
| wych elm |
Ulmus glabra |
2 |
| X-disease |
Phytoplasma MLO |
1 |
| yaupon |
Ilex vomitoria |
1 |
| yellow birch |
Betula alleghaniensis |
4 |
| yellow buckeye |
Aesculus flava |
2 |
| yellow butterfly palm |
Dypsis lutescens |
6 |
| yellow-bellied sapsucker |
Sphyrapicus varius varius |
1 |
| yellow-poplar |
Liriodendron tulipifera |
8 |
| yellowheaded spruce sawfly |
Pikonema alaskensis |
1 |
| Zimmerman pine moth |
Dioryctria zimmermani |
1 |
