|
Aphis helianthi |
1 |
| Abutilon Mosaic Virus |
Begomovirus AbMV |
4 |
| achemon sphinx |
Eumorpha achemon |
1 |
| African cornlily |
Ixia spp. |
4 |
| African violet |
Saintpaulia teitensis |
11 |
| agapanthus |
Agapanthus praecox ssp. orientalis |
1 |
| agapanthus |
Agapanthus spp. |
8 |
| agave |
Agave spp. |
1 |
| air pollutants |
|
1 |
| Alfalfa Mosaic Virus |
Alfamovirus AMV |
2 |
| aloe vera aphid |
Aloephagus myersi |
4 |
| Alternanthera Mosaic Virus |
Potexvirus A1tMV |
6 |
| Alternaria black molds / stem cankers |
Alternaria spp. |
13 |
| Alternaria blight |
Alternaria dianthicola |
13 |
| Alternaria blight |
Alternaria zinniae |
2 |
| Alternaria fungus |
Alternaria papaveris |
6 |
| amaryllis |
Amaryllis spp. |
5 |
| American bittersweet |
Celastrus scandens |
2 |
| amorphophallus |
Amorphophallus spp. |
2 |
| Amur peppervine |
Ampelopsis brevipedunculata |
7 |
| anemone |
Anemone spp. |
3 |
| annosum root disease |
Heterobasidion annosum |
7 |
| anthracnose |
Colletotrichum dematium |
3 |
| anthracnose |
Colletotrichum spp. |
21 |
| anthracnose |
Drepanopeziza ribis |
4 |
| Apalachicola wild indigo |
Baptisia megacarpa |
3 |
| aphid |
Prociphilus bumeliae |
4 |
| aphids |
|
3 |
| Appalachian barren strawberry |
Waldsteinia fragarioides |
1 |
| apple blossom beetle |
Tropinota hirta suturalis |
2 |
| Arabian starflower |
Ornithogalum arabicum |
3 |
| Arabis Mosaic Virus |
Nepovirus ArMV |
1 |
| arctic daisy |
Dendranthema spp. |
1 |
| Armillaria root rot |
Armillaria tabescens |
11 |
| armored scale |
Frogattiella penicillata |
1 |
| armored scale |
Unachionaspis tenuis |
1 |
| armyworm |
Mythimna unipuncta |
1 |
| aroid palm |
Zamioculcas zamiifolia |
6 |
| artist's conk |
Ganoderma applanatum |
17 |
| Ascochyta blight |
Ascochyta lentis |
3 |
| Ascochyta fungi |
Ascochyta spp. |
13 |
| Asian buttercup |
Ranunculus asiaticus |
3 |
| Asiatic garden beetle |
Maladera castanea |
1 |
| Aspergillus fungi |
Aspergillus spp. |
3 |
| asphodel |
Asphodelus albus |
1 |
| aster |
Aster spp. |
6 |
| aster yellows phytoplasma |
Candidatus Phytoplasma asteris |
23 |
| baby's breath |
Gypsophila paniculata cv. Million Stars |
3 |
| baby's breath |
Gypsophila paniculata cv. New Love |
2 |
| babysbreath |
Gypsophila paniculata |
1 |
| bacteria wilt and soft rot |
Dickeya chrysanthemi |
29 |
| bacterial black stalk |
Erwinia spp. |
2 |
| bacterial blight |
Xanthomonas hortorum |
6 |
| bacterial blight of aroids |
Xanthomonas axonopodis pv. dieffenbachiae |
1 |
| bacterial blight of geranium |
Xanthomonas hortorum pv. pelargonii |
2 |
| bacterial leaf spot |
Pseudomonas cichorii |
60 |
| bacterial leaf spot |
Pseudomonas syringae |
1 |
| bacterial soft rot |
Pectobacterium carotovorum |
3 |
| bacterial soft rot |
Pectobacterium carotovorum ssp. carotovorum |
17 |
| bacterial spot |
Xanthomonas axonopodis pv. poinsettiicola |
3 |
| bacterial spot |
Xanthomonas spp. |
16 |
| bacterial wilt |
Burkholderia caryophylli |
2 |
| Bakanae Disease of Rice / cotton boll rot |
Gibberella fujikuroi |
5 |
| balloon-flower |
Platycodon grandiflorus |
1 |
| banksia |
Banksia spp. |
1 |
| bat-face cuphea |
Cuphea llavea |
5 |
| beach false foxglove |
Agalinis fasciculata |
1 |
| bear's breech |
Acanthus mollis |
1 |
| beardtongues |
Penstemon spp. |
1 |
| beeblossom |
Gaura spp. |
2 |
| begonia |
Begonia spp. |
18 |
| Bethlehem lungwort |
Pulmonaria saccharata |
1 |
| billy buttons |
Pycnosorus globosus |
3 |
| birch bolete |
Leccinum scabrum scabrum |
1 |
| birch conk |
Piptoporus betulinus |
2 |
| bird-of-paradise |
Strelitzia reginae |
10 |
| bird-of-paradise |
Strelitzia spp. |
8 |
| bishops goutweed |
Aegopodium podagraria |
5 |
| bitter rot and anthracnose |
Colletotrichum gloeosporioides |
5 |
| black cherry aphid |
Myzus cerasi |
1 |
| black crowberry |
Empetrum nigrum |
4 |
| black root rot |
Thielaviopsis basicola |
24 |
| black root rot |
Xylaria polymorpha |
2 |
| black vine weevil |
Otiorhynchus sulcatus |
13 |
| black witch's butter |
Exidia glandulosa |
2 |
| black-eyed susan |
Rudbeckia hirta |
5 |
| blackberry lily |
Belamcanda chinensis |
1 |
| blanketflower |
Gaillardia spp. |
2 |
| blazing star |
Liatris spp. |
1 |
| bleeding heart |
Dicentra spp. |
1 |
| bleeding heart |
Lamprocapnos spectabilis |
1 |
| bloodflower milkweed |
Asclepias curassavica |
1 |
| bloodroot |
Sanguinaria canadensis |
1 |
| bloody geranium |
Geranium sanguineum |
1 |
| blue anise sage |
Salvia guaranitica |
2 |
| blue Jacob's-ladder |
Polemonium caeruleum |
1 |
| blue leadwood |
Ceratostigma plumbaginoides |
2 |
| blue stain |
Chlorociboria aeruginascens |
1 |
| blue throatwort |
Trachelium caeruleum |
4 |
| blue wild indigo |
Baptisia australis |
3 |
| bluestar |
Amsonia spp. |
4 |
| bluestem |
Andropogon spp. |
1 |
| boatlily |
Tradescantia spathacea |
1 |
| bog rosemary |
Andromeda polifolia |
1 |
| boreal chickweed |
Cerastium tomentosum |
2 |
| Botrytis blight |
Botrytis elliptica |
1 |
| Botrytis blight |
Botrytis paeoniae |
19 |
| bottlebrush threeawn |
Aristida spiciformis |
1 |
| bougainvillea |
Bougainvillea spp. |
11 |
| bouvardia |
Bouvardia spp. |
3 |
| Brazilian dwarf morning-glory |
Evolvulus glomeratus |
1 |
| brittleleaf naiad |
Najas minor |
7 |
| broad mite |
Polyphagotarsonemus latus |
1 |
| broadleaf chives |
Allium senescens |
7 |
| broomsedge bluestem |
Andropogon virginicus |
3 |
| brown soft scale |
Coccus hesperidum |
3 |
| buckwheat |
Fagopyrum esculentum |
2 |
| Budapest slug |
Tandonia budapestensis |
4 |
| building |
|
1 |
| bullnettle |
Cnidoscolus stimulosus |
10 |
| bumble flower beetle |
Euphoria inda |
5 |
| burrowing nematode |
Radopholus similis |
2 |
| bush cinquefoil |
Dasiphora fruticosa |
6 |
| bushy bluestem |
Andropogon glomeratus |
4 |
| bushy seaside tansy |
Borrichia frutescens |
1 |
| butterfly milkweed |
Asclepias tuberosa |
8 |
| butterflybush |
Buddleja spp. |
3 |
| buttonbush |
Cephalanthus occidentalis |
4 |
| cabbage white |
Pieris rapae |
1 |
| calamint |
Calamintha spp. |
2 |
| calla lily |
Zantedeschia aethiopica |
22 |
| camellia |
Camellia spp. |
1 |
| camellia flower blight |
Ciborinia camelliae |
2 |
| Canada lily |
Lilium canadense |
1 |
| Canadian anemone |
Anemone canadensis |
1 |
| Canadian wildginger |
Asarum canadense |
3 |
| canker rot |
Cerrena unicolor |
2 |
| canna |
Canna spp. |
8 |
| canna lily |
Canna x generalis |
4 |
| cape bugle-lily |
Watsonia borbonica |
1 |
| carbon balls |
Daldinia concentrica |
2 |
| cardinalflower |
Lobelia cardinalis |
2 |
| Carmichael's monkshood |
Aconitum carmichaelii |
1 |
| carnation |
Dianthus caryophyllus |
2 |
| carnation |
Dianthus spp. |
14 |
| carpet bugle |
Ajuga reptans |
7 |
| cast-iron plant |
Aspidistra elatior |
4 |
| Catawba rosebay |
Rhododendron catawbiense |
1 |
| catbells |
Baptisia perfoliata |
1 |
| catnip |
Nepeta cataria |
1 |
| Caucasian pincushion flower |
Scabiosa caucasica |
5 |
| Celosia |
Celosia spp. |
3 |
| Cercospora fungi |
Cercospora spp. |
49 |
| Cercospora fungus |
Cercospora amaryllidis |
1 |
| Cercospora leaf spot of rose |
Cercospora rosicola |
6 |
| chamelaucium |
Chamelaucium spp. |
3 |
| chameleon-plant |
Houttuynia cordata |
3 |
| chamomile |
Anthemis spp. |
2 |
| chanterelle |
Cantharellus cibarius |
1 |
| charcoal rot |
Macrophomina phaseolina |
13 |
| cheddar pink |
Dianthus gratianapolitanus |
2 |
| cheddar pink |
Dianthus gratianopolitanus |
4 |
| chemicals |
|
4 |
| chestnut blight or canker |
Cryphonectria parasitica |
3 |
| chestnut oak |
Quercus prinus |
2 |
| chihuahua flower |
Tacitus bellus |
1 |
| China aster |
Callistephus chinensis Matsumoto series |
3 |
| Chinese juniper |
Juniperus chinensis |
3 |
| Chinese privet |
Ligustrum sinense |
9 |
| Chinese silvergrass |
Miscanthus sinensis |
13 |
| Chinese wisteria |
Wisteria sinensis |
1 |
| chocolate vine |
Akebia spp. |
1 |
| Christmas fern |
Polystichum acrostichoides |
7 |
| chrysanthemum |
Chrysanthemum spp. |
10 |
| chrysanthemum aphid |
Macrosiphoniella sanborni |
10 |
| chrysanthemum leaf miner |
Liriomyza trifolii |
4 |
| Chrysanthemum Stunt Viroid |
Pospiviroid CSVd |
4 |
| chrysanthemum white rust |
Puccinia horiana |
26 |
| chrysogonum |
Chrysogonum spp. |
1 |
| citrus mealybug |
Planococcus citri |
5 |
| Cladosporium fungi |
Cladosporium spp. |
7 |
| clarkia |
Clarkia spp. |
4 |
| climbing aster |
Ampelaster carolinianus |
1 |
| clinker polypore |
Inonotus obliquus |
11 |
| clover mite |
Bryobia praetiosa |
4 |
| clustered bellflower |
Campanula glomerata |
2 |
| coastal plain chaffhead |
Carphephorus corymbosus |
3 |
| coastal plain honeycombhead |
Balduina angustifolia |
1 |
| cobweb houseleek |
Sempervivum arachnoideum |
1 |
| cobwebby wild indigo |
Baptisia arachnifera |
13 |
| Cochliobolus leaf spot / black kernel |
Cochliobolus lunatus |
4 |
| cockscomb |
Celosia argentea var. cristata (Cristata group) |
3 |
| cockscomb |
Celosia argentea var. cristata (Spicata group) |
2 |
| coco yam, wild taro |
Colocasia esculenta |
1 |
| cogongrass |
Imperata cylindrica |
4 |
| cold injury (low temperature) |
|
4 |
| cold water injury |
|
2 |
| Collecephalus fungus |
Collecephalus hemerocallidis |
8 |
| columbine |
Aquilegia spp. |
15 |
| columbine Aphid |
Nasonovia aquilegiae |
1 |
| columbine leafminer |
Phytomyza aquilegivora |
5 |
| combleaf yellow false foxglove |
Aureolaria pectinata |
2 |
| common borage |
Borago officinalis |
1 |
| common lilac |
Syringa vulgaris |
4 |
| common milkweed |
Asclepias syriaca |
1 |
| common mullein |
Verbascum thapsus |
1 |
| common periwinkle |
Vinca minor |
1 |
| common pokeweed |
Phytolacca americana |
19 |
| common puffball |
Lycoperdon perlatum |
3 |
| common sedge |
Carex nigra var. juncea |
1 |
| common sunflower |
Helianthus annuus |
3 |
| common thyme |
Thymus vulgaris |
1 |
| common yarrow |
Achillea millefolium |
3 |
| common zinnia |
Zinnia violacea |
3 |
| coneflower |
Rudbeckia hirta cv. Cherokee Sunset |
2 |
| coneflower |
Rudbeckia hirta cv. Indian Summer |
6 |
| coneflower |
Rudbeckia hirta cv. Irish Eyes |
2 |
| coneflowers |
Echinacea spp. |
8 |
| copperleaf |
Acalypha spp. |
2 |
| coralbells |
Heuchera sanguinea |
1 |
| corn poppy |
Papaver rhoeas |
1 |
| cornflower |
Centaurea cyanus |
3 |
| cosmos |
Cosmos spp. |
1 |
| cottony cushion scale |
Icerya purchasi |
1 |
| cream narcissus |
Narcissus tazetta |
3 |
| creeping broad leafed sedge |
Carex siderosticha |
1 |
| creeping juniper |
Juniperus horizontalis |
1 |
| creeping liriope |
Liriope spicata |
4 |
| creeping raspberry |
Rubus pentalobus |
2 |
| crimson clover |
Trifolium incarnatum |
10 |
| crocus |
Crocus spp. |
1 |
| Cronartium gall rusts |
Cronartium spp. |
1 |
| crossvine |
Bignonia capreolata |
6 |
| crown gall |
Rhizobium radiobacter |
4 |
| crownvetch |
Securigera varia |
1 |
| Ctenarytaina spatulata |
Ctenarytaina spatulata |
1 |
| cuckoo bittercress |
Cardamine pratensis |
4 |
| Cucumber Mosaic Virus |
Cucumovirus CMV |
27 |
| cup rosinweed |
Silphium perfoliatum |
1 |
| Curvularia fungus |
Curvularia trifolii |
2 |
| cushion spurge |
Euphorbia epithymoides |
3 |
| cutleaf coneflower |
Rudbeckia laciniata |
1 |
| cutworms, loopers, owlet moths, and underwings |
|
16 |
| cyclamen mite |
Phytonemus pallidus |
1 |
| Cyclaneusma needle cast |
Cyclaneusma minus |
3 |
| Cylindrocladium blight and root rot |
Cylindrocladium scoparium |
2 |
| Cylindrocladium fungus |
Cylindrocladium clavatum |
1 |
| Cylindrocladium root diseases |
Cylindrocladium spp. |
3 |
| cypressvine morningglory |
Ipomoea quamoclit |
2 |
| cyst-forming nematodes |
Afenestrata spp. |
10 |
| Cytospora canker of spruce |
Valsa kunzei |
5 |
| Cytospora cankers |
Cytospora spp. |
11 |
| daffodils |
Narcissus spp. |
26 |
| dahlia |
Dahlia spp. |
2 |
| dahlia smut |
Entyloma dahliae |
8 |
| daisybush |
Osteospermum spp. |
1 |
| damesrocket |
Hesperis matronalis |
1 |
| dandelion |
Taraxacum spp. |
1 |
| daphne |
Daphne spp. |
1 |
| daylily |
Hemerocallis spp. |
27 |
| daylily rust |
Puccinia hemerocallidis |
58 |
| dense blazing star |
Liatris spicata |
4 |
| dense blazing star |
Liatris spicata var. spicata |
2 |
| destroying angel |
Amanita virosa |
2 |
| devil in the bush |
Nigella damascena |
1 |
| devilwood |
Osmanthus americanus |
6 |
| diagnostic lab sample |
|
4 |
| digitalis |
Digitalis spp. |
1 |
| Diplodia blight |
Sphaeropsis sapinea |
1 |
| dog (domestic) |
Canis lupus familiaris |
2 |
| dogwood anthracnose |
Discula destructiva |
1 |
| doll's daisy |
Boltonia spp. |
1 |
| Double Impatiens |
Impatiens walleriana |
1 |
| dove pincushions |
Scabiosa columbaria |
1 |
| downy mildew |
Peronospora arthurii |
1 |
| downy mildew |
Peronospora chlorae |
1 |
| downy mildew |
Peronospora lamii |
36 |
| downy mildew |
Peronospora phlogina |
1 |
| downy mildew |
Peronospora spp. |
20 |
| downy mildew |
Plasmopara belbahrii |
3 |
| downy mildew |
Plasmopara halstedii |
17 |
| downy mildew |
Plasmopara obducens |
36 |
| downy mildew of potentilla |
Peronospora potentillae |
5 |
| Drechslera leaf spot |
Drechslera spp. |
13 |
| dusky slug |
Arion subfuscus |
1 |
| dusty miller |
Centaurea cineraria |
1 |
| dutch crocus |
Crocus vernus |
3 |
| dutchman's breeches |
Dicentra cucullaria |
3 |
| dwarf fireweed |
Chamerion latifolium |
8 |
| dwarf lilyturf |
Ophiopogon japonicus |
1 |
| eastern bluestar |
Amsonia tabernaemontana |
2 |
| Eastern filbert blight |
Anisogramma anomala |
3 |
| eastern poison-ivy |
Toxicodendron radicans |
3 |
| edema |
|
24 |
| Egyptian cottonworm |
Spodoptera littoralis |
1 |
| elatior hybrid primroses |
Primula x polyantha |
1 |
| Entomosporium fungus |
Entomosporium spp. |
1 |
| Epimedium |
Epimedium x rubrum |
1 |
| eryngo |
Eryngium spp. |
2 |
| Eucalyptus Psyllid |
Ctenarytaina eucalypti |
1 |
| Eulophid wasp |
Tetrastichus setifer |
3 |
| euonymus scale |
Unaspis euonymi |
1 |
| euphorbia pit scale |
Planchonia stentae |
3 |
| European chafer |
Amphimallon majale |
2 |
| European pasqueflower |
Pulsatilla vulgaris |
2 |
| Eutypella canker |
Eutypella parasitica |
1 |
| evergreen candytuft |
Iberis sempervirens |
1 |
| evergreen kangaroo paw |
Anigozanthos flavidus |
1 |
| exotic baridine weevil of Amaryllidaceae |
An undescribed species |
2 |
| fairy primrose |
Primula malacoides |
1 |
| fairy-ring leaf spot |
Mycosphaerella dianthi |
13 |
| fall phlox |
Phlox paniculata |
3 |
| false goat's beard |
Astilbe spp. |
5 |
| false morel |
Gyromitra esculenta |
1 |
| false spider mite |
Pentamerismus taxi |
2 |
| false spiraea |
Astilbe spp. (hybrid) |
6 |
| false tinder polypore |
Phellinus igniarius |
7 |
| fasciation |
|
3 |
| feather reed grass |
Calamagrostis x acutiflora |
4 |
| felt scale |
Ovaticoccus salviae |
3 |
| fernleaf yarrow |
Achillea filipendulina |
1 |
| fernleaf yellow false foxglove |
Aureolaria pedicularia |
1 |
| feverfew |
Tanacetum parthenium |
6 |
| field bindweed |
Convolvulus arvensis |
1 |
| field fescue |
Festuca arvernensis |
1 |
| Fig Mosaic Virus |
Potyvirus FMV |
3 |
| fir-fireweed rust |
Pucciniastrum epilobii |
12 |
| fire lily |
Cyrtanthus spp. |
1 |
| flamingo flower |
Anthurium andraeanum cultivar |
4 |
| flamingo flower |
Anthurium andraeanum cv. Midori |
2 |
| flea beetle |
Kuschelina barberi |
1 |
| flea beetle |
Metachroma spp. |
2 |
| florist's cyclamen |
Cyclamen persicum |
1 |
| Flower blights |
Choanephora spp. |
4 |
| foamflower |
Tiarella wherryi |
2 |
| foliar nematode |
Aphelenchoides ritzemabosi |
1 |
| foliar nematodes |
Aphelenchoides spp. |
32 |
| Forsythia |
Forsythia spp. (hybrid) |
2 |
| foxtail lily |
Eremurus spp. |
6 |
| freesia |
Freesia spp. |
1 |
| French marigold |
Tagetes patula |
1 |
| fringed bluestar |
Amsonia ciliata |
3 |
| fringed star orchid |
Epidendrum ciliare |
1 |
| frost and winter injury (general) |
|
2 |
| Fuller rose beetle |
Pantomorus cervinus |
16 |
| Fusarium damping-off |
Fusarium solani |
2 |
| Fusarium root rot and wilt |
Fusarium oxysporum |
23 |
| Fusarium wilt |
Fusarium oxysporum f.sp. gladioli |
13 |
| Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
24 |
| fuzzy pride-of-Rochester |
Deutzia scabra |
1 |
| garden fleahopper |
Halticus bractatus |
2 |
| gardens |
|
6 |
| gasplant |
Dictamnus albus |
1 |
| geranium |
Geranium spp. |
1 |
| geranium |
Geranium x cantabrigiense |
1 |
| geranium |
Pelargonium spp. |
4 |
| geranium bronze |
Cacyreus marshalli |
4 |
| ghost ant |
Tapinoma melanocephalum |
1 |
| giant onion |
Allium giganteum |
2 |
| giant reed |
Arundo donax |
3 |
| giant whitefly |
Aleurodicus dugesii |
1 |
| Gibberella canker |
Gibberella baccata |
1 |
| Gibberella stalk rot |
Gibberella zeae |
1 |
| gladiolus rust |
Uromyces transversalis |
7 |
| gladiolus thrips |
Thrips simplex |
2 |
| globe amaranth |
Gomphrena spp. |
4 |
| globethistle |
Echinops spp. |
3 |
| goat's rue |
Tephrosia virginiana |
6 |
| goldenrod |
Solidago spp. (hybrid) |
5 |
| Gonatobotryum fungus |
Gonatobotryum spp. |
1 |
| gopherweed |
Baptisia lanceolata |
5 |
| grape hyacinth |
Muscari spp. |
1 |
| grassleaf sweet flag |
Acorus gramineus |
3 |
| gray mold |
Botrytis cinerea |
37 |
| gray molds |
Botrytis spp. |
75 |
| great bougainvillea |
Bougainvillea spectabilis |
2 |
| greater ammi |
Ammi majus |
4 |
| Greek thimbleweed |
Anemone blanda |
2 |
| green alga |
Cephaleuros virescens |
6 |
| green and gold |
Chrysogonum virginianum |
3 |
| green hellebore |
Helleborus viridis |
1 |
| green lacewing |
Chrysoperla rufilabris |
8 |
| green peach aphid |
Myzus persicae |
4 |
| green scale |
Coccus viridis |
1 |
| greenhouse whitefly |
Trialeurodes vaporariorum |
1 |
| gummosis |
|
1 |
| Hairy wachendorfia |
Wachendorfia hirsuta |
1 |
| hanging sedge |
Carex pendula |
1 |
| hare's ear |
Bupleurum rotundifolium |
5 |
| hawkweeds |
Hieracium spp. |
1 |
| heart of Jesus |
Caladium bicolor |
1 |
| heart rot |
Phellinus rimosus |
1 |
| heat |
|
1 |
| heath |
Erica spp. |
1 |
| heath sedge |
Carex flacca |
2 |
| heliconia |
Heliconia spp. |
5 |
| hellebore |
Helleborus spp. |
4 |
| hemispherical scale |
Saissetia coffeae |
2 |
| hemlock varnish shelf |
Ganoderma tsugae |
2 |
| herb bennet |
Geum urbanum |
1 |
| herb-robert |
Geranium robertianum |
2 |
| herbicides (general) |
|
11 |
| Heterosporium leaf spot |
Cladosporium iridis |
3 |
| hibiscus |
Hibiscus spp. |
4 |
| high soluble salts |
|
4 |
| hippeastrum |
Hippeastrum spp. |
4 |
| hispidus canker |
Inonotus hispidus |
1 |
| holiday cactus |
Schlumbergera spp. |
1 |
| hollyhock |
Alcea rosea |
1 |
| honeysuckle aphid |
Hyadaphis tataricae |
1 |
| hophead Philippine violet |
Barleria lupulina |
8 |
| horehound |
Marrubium peregrinum |
3 |
| horehound |
Marrubium spp. |
4 |
| hosta |
Hosta spp. |
5 |
| Hosta Virus X |
Potexvirus HVX |
112 |
| hottentot fig |
Carpobrotus edulis |
1 |
| Hubricht's bluestar |
Amsonia hubrichtii |
6 |
| hydrangea |
Hydrangea spp. |
3 |
| Icelandic poppy |
Papaver nudicaule |
1 |
| iceplant |
Mesembryanthemum spp. |
1 |
| Ichneumonid wasp |
Diaparsis jucunda |
1 |
| Idriella root rot |
Idriella spp. |
20 |
| Impatiens Necrotic Spot Virus |
Tospovirus INSV |
47 |
| Indian shot |
Canna indica |
1 |
| Indian woodoats |
Chasmanthium latifolium |
2 |
| indigobush twig borer |
Hystricophora taleana |
1 |
| inky cap |
Coprinus radians |
1 |
| Inonotus cankers |
Inonotus spp. |
1 |
| iris |
Iris spp. |
9 |
| iris leaf spot |
Davidiella macrospora |
36 |
| iron deficiency |
|
3 |
| issid planthopper |
Acanalonia bivittata |
2 |
| Ithuriel's spear |
Triteleia laxa |
3 |
| ixora |
Ixora spp. |
6 |
| Jack in the pulpit |
Arisaema spp. |
3 |
| Jack in the pulpit |
Arisaema triphyllum |
2 |
| Jack in the pulpit |
Arisaema triphyllum ssp. triphyllum |
1 |
| Japanese anemone |
Anemone x hybrida |
20 |
| Japanese beetle |
Popillia japonica |
13 |
| Japanese chaff flower |
Achyranthes japonica |
4 |
| Japanese falsecypress |
Chamaecyparis pisifera |
3 |
| Japanese knotweed |
Fallopia japonica |
1 |
| Japanese thistle |
Cirsium japonicum |
4 |
| Japanese yew |
Taxus cuspidata |
3 |
| jessamine |
Cestrum spp. |
9 |
| jewelweed |
Impatiens capensis |
1 |
| Jill of the rocks |
Heuchera maxima |
3 |
| johnsongrass |
Sorghum halepense |
3 |
| kangaroo paw |
Anigozanthos spp. |
4 |
| king protea |
Protea cynaroides |
3 |
| knapweeds |
Centaurea spp. |
1 |
| knight's-spur |
Consolida spp. |
3 |
| Kutilakesa fungus |
Kutilakesa pironii |
9 |
| lackluster laccaria |
Laccaria laccata |
1 |
| lady's-mantle |
Alchemilla mollis |
2 |
| lampranthus |
Lampranthus spp. |
1 |
| lantana |
Lantana spp. |
1 |
| large milkweed bug |
Oncopeltus fasciatus |
4 |
| large white butterfly |
Pieris brassicae |
1 |
| largeleaf lantana |
Lantana camara |
1 |
| larger canna leafroller |
Calpodes ethlius |
6 |
| larkspur |
Delphinium spp. (hybrid) |
4 |
| larkspurleaf monkshood |
Aconitum delphiniifolium |
8 |
| latania scale |
Hemiberlesia lataniae |
1 |
| lavender cotton |
Santolina chamaecyparissus |
2 |
| leaf and flower gall |
Exobasidium vaccinii |
2 |
| leaf beetle |
Arescus spp. |
5 |
| leaf blight of taro |
Phytophthora colocasiae |
3 |
| leaf blotch |
Peyronellaea curtisii |
19 |
| leaf distortion |
|
4 |
| leaf spot |
Batcheloromyces proteae |
14 |
| leaf spot |
Cercostigmina protearum var. protearum |
19 |
| leaf spot |
Pyrenophora phaeocomes |
2 |
| leaf spot |
Ramularia didyma |
1 |
| leaf spot |
Stemphylium spp. |
1 |
| leaf spot disease of Bells-of-Ireland |
Cercospora moluccella |
8 |
| leaf spot or scorch |
Septoria azalea |
1 |
| leaf-footed bug |
Hypselonotus interruptus |
4 |
| leafhopper |
Cuerna septentrionalis |
1 |
| leafhoppers |
|
1 |
| leafminer flies |
|
2 |
| leafminer flies |
Phytomyza spp. |
1 |
| leafminer fly |
Liriomyza spp. |
4 |
| leather flower |
Clematis spp. |
2 |
| leatherleaf mahonia |
Mahonia bealei |
5 |
| leopard plant |
Ligularia stenocephala |
1 |
| Leptosphaerulina leaf blight |
Leptosphaerulina trifolii |
4 |
| leucospermum |
Leucospermum spp. |
5 |
| Lewis spider mite |
Eotetranychus lewesi |
5 |
| lilac |
Syringa x hyacinthiflora |
2 |
| lilac root weevil |
Otiorhynchus meridionalis |
1 |
| lily |
Lilium spp. |
19 |
| lily leaf beetle |
Lilioceris lilii |
21 |
| lily of the Nile |
Agapanthus africanus |
8 |
| Lily Symptomless Virus |
Carlavirus LSV |
1 |
| limber pine |
Pinus flexilis |
3 |
| lion's mane hericium |
Hericium erinaceus |
1 |
| little quakinggrass |
Briza minor |
1 |
| live-forever stonecrop |
Hylotelephium telephium |
1 |
| longneck fieldslug |
Deroceras panormitanum |
2 |
| longtailed mealybug |
Pseudococcus longispinus |
10 |
| loosestrife |
Lysimachia spp. |
1 |
| love-lies-bleeding |
Amaranthus caudatus |
4 |
| lovebug |
Plecia nearctica |
1 |
| low northern sedge |
Carex concinna |
1 |
| lupine |
Lupinus spp. |
2 |
| Madagascar widow's-thrill |
Kalanchoe blossfeldiana |
1 |
| Madeira mealybug |
Phenacoccus madeirensis |
2 |
| maiden pink |
Dianthus deltoides |
4 |
| marguerite |
Argyranthemum frutescens |
1 |
| marigold |
Tagetes spp. |
6 |
| Marssonina leaf spot |
Marssonina betulae |
1 |
| Marssonina leaf spots |
Marssonina spp. |
1 |
| Mayapple rust |
Puccinia podophylli |
1 |
| meadowfoam |
Limnanthes spp. |
1 |
| mealybug destroyer |
Cryptolaemus montrouzieri |
1 |
| mealybug on Caralluma |
Vryburgia trionymoides |
1 |
| mealybugs |
|
5 |
| Mediterranean carnation leafroller |
Cacoecimorpha pronubana |
2 |
| Melancholy toad-flax |
Linaria tristis |
1 |
| Mexican bromeliad weevil |
Metamasius callizona |
5 |
| Mexican creeping zinnia |
Sanvitalia procumbens |
1 |
| michaelmas daisy |
Aster ericoides cv. Monte Casino |
3 |
| milk-white toothed polypore |
Irpex lacteus |
1 |
| milkweed |
Asclepias spp. |
10 |
| miner |
Marmara spp. |
6 |
| Minnesota trout lily |
Erythronium propullans |
1 |
| mint rust |
Puccinia menthae |
8 |
| miracle fruit |
Gymnema sylvestre |
1 |
| mock oyster |
Phyllotopsis nidulans |
2 |
| monarda |
Monarda spp. |
1 |
| monkeygrass |
Liriope muscari |
1 |
| monkshood |
Aconitum spp. |
3 |
| montbretia |
Crocosmia spp. (hybrid) |
2 |
| morel |
Morchella spp. |
1 |
| Morrow's sedge |
Carex morrowii |
4 |
| mosaic viruses (general) |
|
6 |
| moss phlox |
Phlox subulata |
1 |
| mossy maple polypore |
Oxyporus populinus |
2 |
| mountain witchalder |
Fothergilla major |
1 |
| mourningbride |
Scabiosa atropurpurea |
1 |
| mugo pine |
Pinus mugo |
2 |
| muhly |
Muhlenbergia spp. |
1 |
| mule deer |
Odocoileus hemionus |
4 |
| muskingum sedge |
Carex muskingumensis |
1 |
| mycelial neck rot |
Botrytis tulipae |
32 |
| narcissus bulb fly |
Merodon equestris |
4 |
| nasturtium |
Tropaeolum majus |
1 |
| nasturtium |
Tropaeolum spp. |
2 |
| Nectria canker |
Nectria spp. |
5 |
| nerine |
Nerine spp. |
4 |
| New Zealand flax |
Phormium tenax |
6 |
| Noctuid moth |
Helicoverpa spp. |
1 |
| Norfolk-island lagunaea |
Lagunaea patersonia |
1 |
| northern root-knot nematode |
Meloidogyne hapla |
1 |
| northern tansymustard |
Descurainia sophioides |
9 |
| nursery operations |
|
2 |
| obedient-plant |
Physostegia virginiana |
2 |
| obscure mealybug |
Pseudococcus viburni |
1 |
| old world bollworm, cotton bollworm |
Helicoverpa armigera |
1 |
| oleander aphid |
Aphis nerii |
1 |
| oleander moth |
Syntomeida epilais jucundissima |
2 |
| onions |
Allium spp. |
11 |
| onionweed |
Asphodelus fistulosus |
2 |
| orange hawkweed |
Hieracium aurantiacum |
2 |
| orange hobnail canker |
Cryphonectria gyrosa |
1 |
| orange jelly |
Dacrymyces palmatus |
1 |
| orange stonecrop |
Sedum kamtschaticum |
1 |
| orchid |
Chloraea gavilu |
1 |
| orchid |
Guarianthe bowringiana |
6 |
| Orchid Fleck Virus |
Rhabdovirus OFV |
1 |
| orchid weevil |
Orchidophilus aterrimus |
1 |
| orchids |
|
3 |
| oregano |
Origanum vulgare x laevigatum |
6 |
| oriental beetle |
Anomala orientalis |
2 |
| oriental poppy |
Papaver orientale |
3 |
| ornamental jewelweed |
Impatiens glandulifera |
12 |
| ovateleaf cacalia |
Arnoglossum ovatum |
1 |
| oxeye |
Heliopsis helianthoides |
2 |
| oxeye daisy |
Leucanthemum vulgare |
6 |
| oyster mushroom |
Pleurotus ostreatus |
5 |
| oyster mushroom |
Pleurotus spp. |
3 |
| pale echinacea |
Echinacea pallida |
1 |
| pansy |
Viola tricolor |
5 |
| pansy |
Viola x wittrockiana |
4 |
| pansy orchid |
Miltonia spp. |
1 |
| Papaya Mosaic Virus |
Potexvirus PapMV |
1 |
| paperwhite narcissus |
Narcissus papyraceus |
2 |
| parsley hawthorn |
Crataegus marshallii |
1 |
| paved roads and streets |
|
4 |
| pea leafminer |
Liriomyza huidobrensis |
1 |
| Peanut Stunt Virus |
Cucumovirus PSV |
1 |
| Penicillium fungi |
Penicillium spp. |
8 |
| pennycress |
Thlaspi spp. |
1 |
| peony |
Paeonia spp. |
8 |
| peony leaf blotch |
Cladosporium paeoniae |
2 |
| people |
|
1 |
| pepper |
Capsicum spp. |
3 |
| peppervine |
Ampelopsis arborea |
1 |
| perennial cornflower |
Centaurea montana |
3 |
| Perez's sea lavender |
Limonium perezii |
3 |
| periodical cicada |
Magicicada septendecim |
1 |
| periwinkle |
Vinca spp. |
3 |
| Persian Shield |
Strobilanthes dyerianus |
1 |
| Peruvian zinnia |
Zinnia peruviana |
2 |
| Pestalotiopsis leaf spot |
Pestalotiopsis spp. |
4 |
| pesticides |
|
4 |
| petunia |
Petunia spp. |
6 |
| petunia |
Petunia x hybrida |
1 |
| Phialophora wilt |
Phialophora cinerescens |
1 |
| Philippine evergreen |
Aglaonema commutatum |
1 |
| Philippine violet |
Barleria spp. |
1 |
| phlox |
Phlox spp. |
5 |
| Phoma blight |
Phoma clematidina |
9 |
| Phoma blights |
Phoma spp. |
10 |
| Phomopsis cankers and twig blights |
Phomopsis spp. |
3 |
| phorid flies |
Chonocephalus spp. |
3 |
| Phyllosticta leaf spots |
Phyllosticta spp. |
5 |
| Phytophthora basal canker |
Phytophthora palmivora |
1 |
| Phytophthora blight |
Phytophthora nicotianae |
49 |
| Phytophthora root and crown rots |
Phytophthora spp. |
18 |
| Phytophthora root and stem rot |
Phytophthora cryptogea |
9 |
| Phytophthora root and stem rot |
Phytophthora drechsleri |
1 |
| Phytophthora root rot |
Phytophthora cactorum |
11 |
| Phytophthora tropicalis |
Phytophthora tropicalis |
4 |
| pigweed |
Amaranthus spp. |
2 |
| pine needle rusts |
Coleosporium spp. |
9 |
| pineapple lily |
Eucomis spp. |
2 |
| pineapple mealybug |
Dysmicoccus brevipes |
1 |
| pineapple sage |
Salvia elegans |
6 |
| pinewoods milkweed |
Asclepias humistrata |
3 |
| pink hibiscus mealybug |
Maconellicoccus hirsutus |
10 |
| pipevine |
Aristolochia macrophylla |
1 |
| pit scale galls |
Eremococcus spp. |
1 |
| plant bug |
Macrolophus spp. |
3 |
| plant bug |
|
3 |
| plantainleaf pussytoes |
Antennaria plantaginifolia |
1 |
| Ploioderma needle cast of pine |
Ploioderma lethale |
1 |
| plumeria |
Plumeria spp. |
1 |
| poet's narcissus |
Narcissus poeticus |
1 |
| poinsettia |
Euphorbia pulcherrima |
9 |
| porcupine flower |
Barleria prionitis |
1 |
| pot marigold |
Calendula officinalis |
4 |
| potato rot nematode |
Ditylenchus destructor |
1 |
| Potato Yellow Dwarf Virus |
Nucleorhabdovirus PYDV |
1 |
| Potyvirus (general) |
|
8 |
| powdery mildew |
Erysiphe betae |
1 |
| powdery mildew |
Erysiphe cichoracearum |
8 |
| powdery mildew |
Erysiphe magnicellulata |
6 |
| powdery mildew |
Erysiphe spp. |
3 |
| powdery mildew |
Golovinomyces cichoracearum |
32 |
| powdery mildew |
Golovinomyces orontii |
2 |
| powdery mildew |
Oidium spp. |
14 |
| powdery mildew |
Podosphaera spp. |
1 |
| powdery mildews |
Sphaerotheca spp. |
4 |
| predatory mites |
|
1 |
| prickly pear moth |
Cactoblastis cactorum |
49 |
| Prickly-leaved massonia |
Massonia muricata |
1 |
| primrose |
Primula spp. |
1 |
| Prince-of-Wales feather |
Amaranthus hypochondriacus |
2 |
| protea |
Protea spp. |
2 |
| protea beetle |
Trichostetha fascicularis |
1 |
| Pseudocercospora fungus |
Pseudocercospora pancratii |
7 |
| puffball |
Lycoperdon pyriforme |
21 |
| purple coneflower |
Echinacea purpurea |
4 |
| purple loosestrife |
Lythrum salicaria |
4 |
| purple pampasgrass |
Cortaderia jubata |
1 |
| purple pitcherplant |
Sarracenia purpurea |
1 |
| purple queen |
Tradescantia pallida |
1 |
| purslane |
Portulaca spp. |
2 |
| Pythium diseases |
Pythium spp. |
34 |
| quick gloss |
Zonitoides arboreus |
1 |
| ram's head lady's slipper |
Cypripedium arietinum |
1 |
| Ramaria fungi |
Ramaria spp. |
3 |
| raspberry cane borer |
Oberea perspicillata |
6 |
| ray (flower) blight of chrysanthemum |
Didymella ligulicola |
4 |
| red amaranth |
Amaranthus cruentus |
2 |
| red heart of pine |
Phellinus pini |
2 |
| red pincushion-protea |
Leucospermum cordifolium |
1 |
| red squill |
Urginea maritima |
4 |
| red turtlehead |
Chelone obliqua |
2 |
| red valerian |
Centranthus ruber |
3 |
| red-belted fungus |
Fomitopsis pinicola |
2 |
| red-femured milkweed borer |
Tetraopes femoratus |
2 |
| redheaded flea beetle |
Systena frontalis |
1 |
| redhot poker |
Kniphofia spp. |
3 |
| redhot poker |
Kniphofia uvaria |
3 |
| reedgrass |
Calamagrostis spp. |
1 |
| Reeves' meadowsweet |
Spiraea cantoniensis |
7 |
| regal lily |
Lilium regale |
1 |
| resinous polypore |
Ischnoderma resinosum |
1 |
| Rhabdocline needlecast |
Rhabdocline weirii |
1 |
| Rhabdocline needlecasts |
Rhabdocline spp. |
1 |
| Rhizoctonia damping-off, blight and rot |
Rhizoctonia solani |
23 |
| Rhizopus soft rots |
Rhizopus spp. |
1 |
| robustus conk |
Phellinus robustus |
3 |
| root rot/damping off |
Rhizoctonia spp. |
44 |
| root-knot nematode |
Meloidogyne mayaguensis |
18 |
| rose |
Rosa spp. |
3 |
| rose aphid |
Macrosiphum rosae |
2 |
| rose vervain |
Glandularia canadensis |
1 |
| Russian iris |
Iris ensata |
1 |
| Russian sage |
Perovskia atriplicifolia |
2 |
| rust |
Coleosporium helianthi |
3 |
| rust |
Puccinia antirrhini |
8 |
| rust |
Puccinia heucherae |
12 |
| rust |
Puccinia hyssopi |
5 |
| rust |
Puccinia lantanae |
8 |
| rust |
Puccinia malvacearum |
8 |
| rust |
Puccinia pelargonii-zonalis |
13 |
| rust |
Puccinia salviicola |
4 |
| rust |
Uromyces ari-triphylli |
6 |
| rust |
Uromyces dianthi |
1 |
| rust on veronica |
Puccinia veronicae-longifoliae |
3 |
| rusty gilled polypore |
Gloeophyllum sepiarium |
8 |
| safflower |
Carthamus tinctorius |
5 |
| sage |
Salvia officinalis |
1 |
| sage |
Salvia spp. |
2 |
| saltbush |
Atriplex spp. |
4 |
| savin |
Juniperus sabina |
2 |
| scab of poinsettia |
Sphaceloma poinsettiae |
9 |
| scale |
Icerya spp. |
3 |
| scaly pholiota |
Pholiota squarrosa |
1 |
| scarlet beebalm |
Monarda didyma |
1 |
| scarlet rosemallow |
Hibiscus coccineus |
1 |
| Schweinitzii root and butt disease |
Phaeolus schweinitzii |
8 |
| Sclerotinia rot |
Sclerotinia sclerotiorum |
35 |
| Sclerotinia rots |
Sclerotinia spp. |
4 |
| seacliff starviolet |
Hedyotis littoralis |
6 |
| sedge |
Carex phyllocephala |
1 |
| sedge |
Carex spp. |
2 |
| Seimatosporium fungi |
Seimatosporium spp. |
2 |
| Septoria leaf spot |
Septoria chrysanthemi |
2 |
| Septoria leaf spot and cankers |
Septoria spp. |
11 |
| seven sisters swamplily |
Crinum americanum |
1 |
| sharp-lobed hepatica |
Hepatica nobilis var. acuta |
1 |
| sharp-stigma looper moth |
Ctenoplusia oxygramma |
7 |
| Shasta daisy |
Leucanthemum x superbum |
2 |
| shellflower |
Moluccella laevis |
4 |
| shellplant |
Alpinia zerumbet |
1 |
| shepherd's-purse |
Capsella bursa-pastoris |
9 |
| shooting star |
Dodecatheon spp. |
1 |
| short-stemmed russula |
Russula brevipes |
1 |
| showy baby's-breath |
Gypsophila elegans |
2 |
| showy prairie gentian |
Eustoma exaltatum ssp. russellianum |
2 |
| showy stonecrop |
Hylotelephium spectabile |
2 |
| Siberian iris |
Iris sibirica |
5 |
| Siberian squill |
Scilla siberica |
1 |
| silver sage |
Salvia argentea |
1 |
| silver Y moth |
Autographa gamma |
1 |
| single delight |
Moneses uniflora |
1 |
| slender pride of Rochester |
Deutzia gracilis |
1 |
| slime mold |
|
3 |
| slime mold |
Stemonitis spp. |
1 |
| small milkweed bug |
Lygaeus kalmii |
1 |
| Small's skullcap |
Scutellaria multiglandulosa |
1 |
| smallflower galinsoga |
Galinsoga parviflora |
4 |
| smooth azalea |
Rhododendron arborescens |
1 |
| smooth brome |
Bromus inermis |
3 |
| smooth oxeye |
Heliopsis helianthoides var. scabra |
1 |
| smut |
Entyloma spp. |
8 |
| snakemouth orchid |
Pogonia ophioglossoides |
1 |
| snapdragon |
Antirrhinum majus |
2 |
| snow-on-the-mountain |
Euphorbia marginata |
4 |
| snowbed draba |
Draba crassifolia |
5 |
| snowdrop |
Galanthus nivalis |
4 |
| soft scale |
Pulvinaria mesembryanthemi |
1 |
| sorrel |
Oxalis regnellii |
7 |
| South African carnation tortrix |
Epichoristodes acerbella |
2 |
| Southern bacterial wilt |
Ralstonia solanacearum (except Race 3 Biovar 2) |
1 |
| Southern bacterial wilt |
Ralstonia solanacearum Race 3 Biovar 2 |
11 |
| southern blight |
Sclerotium rolfsii |
46 |
| southern globethistle |
Echinops ritro |
1 |
| southern red mite |
Oligonychus ilicis |
2 |
| speedwell |
Veronica spp. |
6 |
| spiderwort |
Tradescantia spp. |
17 |
| spiked wild indigo |
Baptisia albescens |
1 |
| spoonwort |
Cochlearia officinalis |
20 |
| spotted bellflower |
Campanula punctata |
1 |
| spotted calla lily |
Zantedeschia albomaculata |
1 |
| spurge |
Euphorbia spp. |
1 |
| spurred butterfly pea |
Centrosema virginianum |
1 |
| St. Joseph's lily |
Hippeastrum x johnsonii |
1 |
| star of Bethlehem |
Ornithogalum spp. |
1 |
| star-of-Bethlehem |
Ornithogalum thyrsoides |
3 |
| starflower pincushions |
Scabiosa stellata |
1 |
| statice |
Limonium hybrid Misty series |
3 |
| statice |
Psylliostachys suworowii |
4 |
| stem and bulb nematode |
Ditylenchus dipsaci |
4 |
| stonecrop |
Hylotelephium spp. |
2 |
| stonecrop |
Sedum spp. |
3 |
| strawberry |
Fragaria spp. |
2 |
| strawberry crimp nematode |
Aphelenchoides fragariae |
2 |
| strawberry leaf spot |
Mycosphaerella fragariae |
1 |
| Striped Cobra Lily |
Arisaema candidissimum |
2 |
| striped cucumber beetle |
Acalymma vittatum |
1 |
| stunt nematode |
Tylenchorhynchus spp. |
1 |
| sulfur shelf |
Laetiporus sulphureus |
14 |
| sulphur cosmos |
Cosmos sulphureus |
1 |
| sunflower |
Helianthus annuus cultivar |
1 |
| sunflower |
Helianthus annuus cv. Teddy Bear |
1 |
| sweet autumn virginsbower |
Clematis terniflora |
5 |
| sweet iris |
Iris pallida |
1 |
| sweet mock orange |
Philadelphus coronarius |
1 |
| sweet pepper |
Capsicum annuum |
1 |
| sweet-scented Tritonia |
Tritonia squalida |
1 |
| sweetflag |
Acorus spp. |
1 |
| sweetscented marigold |
Tagetes lucida |
1 |
| Swiss needle cast |
Phaeocryptopus gaeumannii |
2 |
| syrphid or flower flies |
|
1 |
| Tachinid fly |
Adejeania vexatrix |
1 |
| Tachinid fly |
Paradejeania rutilioides |
2 |
| tansy |
Tanacetum spp. |
2 |
| tarflower |
Befaria racemosa |
1 |
| tarnished plant bug |
Lygus lineolaris |
2 |
| taro |
Alocasia spp. |
1 |
| tawny daylily |
Hemerocallis fulva |
6 |
| tea scale |
Fiorinia theae |
1 |
| tenebrionid beetle |
Blapstinus spp. |
1 |
| thorny olive |
Elaeagnus pungens |
7 |
| threeawn |
Aristida spp. |
1 |
| thrift seapink |
Armeria maritima |
1 |
| tinder fungus |
Fomes fomentarius |
4 |
| toadlily |
Tricyrtis hirta |
1 |
| tobacco |
Nicotiana spp. |
2 |
| tobacco budworm |
Heliothis virescens |
9 |
| Tobacco Mosaic Virus |
Tobamovirus TMV |
2 |
| Tobacco Rattle Virus |
Tobravirus TRV |
69 |
| Tobacco Ringspot Virus |
Nepovirus TRSV |
5 |
| Tobacco Streak Virus |
Ilarvirus TSV |
6 |
| Tomato Ringspot Virus |
Nepovirus ToRSV |
1 |
| Tomato Spotted Wilt Virus |
Tospovirus TSWV |
62 |
| Tomentosus root disease |
Onnia tomentosus |
4 |
| touch-me-not |
Impatiens spp. |
2 |
| Transvaal daisy |
Gerbera spp. |
2 |
| trillium |
Trillium spp. |
2 |
| true bug |
Neopamera bilobata |
3 |
| trumpetflower |
Gelsemium spp. |
1 |
| trumpetweed |
Eupatorium fistulosum |
1 |
| Tubercularia cankers |
Tubercularia spp. |
11 |
| tuberose |
Polianthes tuberosa |
3 |
| tulip |
Tulipa spp. |
47 |
| Tulip Breaking Virus |
Potyvirus TBV |
5 |
| tulip bulb aphid |
Dysaphis tulipae |
1 |
| tungoil tree |
Vernicia fordii |
13 |
| turkey corn |
Dicentra eximia |
1 |
| turkey tail |
Trametes versicolor |
6 |
| tussock bellflower |
Campanula carpatica |
1 |
| two-row stonecrop |
Sedum spurium |
1 |
| twospotted spider mite |
Tetranychus urticae |
5 |
| Undescribed Tombusvirus |
Tombusvirus (Undescribed) |
1 |
| unknown virus |
|
9 |
| urn orchid |
Bletilla striata |
1 |
| Uruguayan pampas grass |
Cortaderia selloana |
5 |
| variegated fritillary |
Euptoieta claudia |
1 |
| velvet foot |
Flammulina velutipes |
1 |
| Venus' chariot |
Aconitum napellus |
1 |
| verbena |
Verbena speciosa |
1 |
| verbena |
Verbena spp. |
1 |
| Verticillium wilts |
Verticillium spp. |
3 |
| violet |
Viola spp. |
1 |
| violet woodsorrel |
Oxalis violacea |
4 |
| Violet-toothed Polypore |
Trichaptum biforme |
12 |
| Virginia bluebells |
Mertensia virginica |
2 |
| Virginia spiderwort |
Tradescantia virginiana |
1 |
| Volutella blight |
Volutella buxi |
1 |
| Volutella blight |
Volutella pachysandrae |
1 |
| Volutella blight of pachysandra |
Volutella pachysandricola |
4 |
| voodoo lily |
Amorphophallus bulbifer |
3 |
| wall lettuce |
Mycelis muralis |
1 |
| waratah |
Telopea spp. |
2 |
| Warty St. John's wort |
Hypericum balearicum |
1 |
| Washington lily |
Lilium washingtonianum |
2 |
| waterlilies |
Nymphaea spp. |
2 |
| wavyleaf sea lavender |
Limonium sinuatum |
4 |
| waxweed |
Cuphea spp. |
1 |
| weeping lantana |
Lantana montevidensis |
1 |
| weevil |
Bothinodontes spp. |
3 |
| weevil |
Cholus spp. |
6 |
| western arctic shootingstar |
Dodecatheon frigidum |
5 |
| western columbine |
Aquilegia formosa |
1 |
| western flower thrips |
Frankliniella occidentalis |
9 |
| western salsify |
Tragopogon dubius |
2 |
| white garland-lily |
Hedychium coronarium |
1 |
| white heartwood rot |
Phellinus tremulae |
10 |
| white rot fungus |
Stromatinia gladioli |
44 |
| white trout lily |
Erythronium albidum |
3 |
| white wild indigo |
Baptisia alba |
8 |
| whiteflies |
|
1 |
| whiteweed |
Ageratum spp. |
1 |
| whorled coreopsis |
Coreopsis verticillata |
2 |
| whorled sage |
Salvia verticillata |
1 |
| wild bergamot |
Monarda fistulosa |
2 |
| wild geranium |
Geranium maculatum |
2 |
| wild indigo |
Baptisia spp. |
7 |
| wild marjoram |
Origanum vulgare |
1 |
| wild sage |
Salvia sylvestris |
1 |
| wild sugarcane |
Saccharum spontaneum |
1 |
| wildginger |
Asarum spp. |
1 |
| windflower |
Anemone rivularis |
1 |
| winter aconite |
Eranthis hyemalis |
1 |
| wood decay |
Schizophyllum commune |
5 |
| wood sorrel |
Oxalis acetosella |
1 |
| woodland bittercress |
Cardamine flexuosa |
3 |
| woodland poppymallow |
Callirhoe papaver |
2 |
| yarrow |
Achillea aegyptiaca |
13 |
| yarrow |
Achillea spp. |
4 |
| yellow cap fungi |
Pholiota spp. |
3 |
| yellow chamomile |
Anthemis tinctoria |
2 |
| yellow colicroot |
Aletris lutea |
3 |
| yellow marsh marigold |
Caltha palustris |
2 |
| yellow woodsorrel |
Oxalis stricta |
1 |
| yew |
Taxus × media |
4 |
| zinnia |
Zinnia spp. |
9 |
