| 5492330 |
Ploioderma fungi |
Ploioderma spp. |
Appearance of immature fruiting bodies as observed on needles in spring |
| 5492332 |
Ploioderma fungi |
Ploioderma spp. |
Immature Ploioderma fruiting bodies appearing as thin black lines on the needle surface; as fruiting bodies mature and swell, the needle epidermis will split along these lines. |
| 5457956 |
Camarosporium fungi |
Camarosporium spp. |
Spores |
| 5492323 |
leaf spot of maize |
Bipolaris zeicola |
NCLS spores developing from a lesion on a leaf |
| 5492324 |
oak wilt |
Ceratocystis fagacearum |
Dark streaking on wood of oak branch |
| 5492325 |
oak wilt |
Ceratocystis fagacearum |
Endoconidia and conidia of Ceratocystis fagacearum from culture |
| 5492326 |
oak wilt |
Ceratocystis fagacearum |
Appearance of Ceratocystis fagacearum grown on acidified potato dextrose agar (APDA) at 18 degrees C. (at 3-4 weeks) |
| 5492313 |
rust |
Pucciniastrum americanum |
Rust pustules developing on yellow raspberry fruit |
| 5492314 |
Cytospora cankers |
Cytospora spp. |
Cytospora/spruce canker: cross section of Cytospora pycnidial stroma |
| 5492317 |
Cytospora cankers |
Cytospora spp. |
yellow tendrils of conidia oozing from pycnidial stromata of a Cytospora sp. developing in an infected spruce branch |
| 5492315 |
Cytospora cankers |
Cytospora spp. |
The tip of a pycnidial stroma just visible breaking through the bark on a spruce branch with Cytospora canker |
| 5492309 |
Cytospora cankers |
Cytospora spp. |
Tendril of spores (conidia) oozing from pycnidial stroma of a Cytospora sp. |
| 5492312 |
Cytospora cankers |
Cytospora spp. |
Pycnidial stromata of Cytospora sp. showing yellowish spores oozing from fruiting bodies after bark cut away and tissue moistened. |
| 5492340 |
white pine weevil |
Pissodes strobi |
an adult white pine weevil collected from spruce |
| 5492342 |
white pine weevil |
Pissodes strobi |
White pine weevil adult on a spruce branch |
| 5492341 |
white rot |
Stromatinia cepivora |
small dark sclerotia on garlic |
| 5484087 |
rust |
Pucciniastrum americanum |
A rust pustule on raspberry fruit with spores. |
| 5492307 |
Cytospora cankers |
Cytospora spp. |
Pycnidial stromata of Cytospora exposed in bark of a spruce branch |
| 5484086 |
brown spot needle blight of pine |
Mycosphaerella dearnessii |
Olive brown spores. |
| 5484085 |
brown spot needle blight of pine |
Mycosphaerella dearnessii |
Fruiting bodies on Easter white pine needle. |
| 5492305 |
mycelial neck rot |
Botrytis tulipae |
Dark fungal sclerotia on roots of infected (potted) plants |
| 5492331 |
Ploioderma fungi |
Ploioderma spp. |
Appearance of immature fruiting bodies as observed on needles in spring |
| 5484094 |
red-banded fungus beetle |
Megalodacne fasciata |
Red-banded fungus beetle larva close-up of head and an adult antenna. |
| 5484090 |
late blight |
Phytophthora infestans |
Late blight symptom, leaf spot, view of upper and lower leaf surfaces. |
| 5461624 |
|
Uncinula sp. |
Asci |
| 5461625 |
|
Uncinula sp. |
Asci with spores |
| 5461622 |
|
Uncinula sp. |
Asci with spores |
| 5492339 |
Stigmina leaf spot |
Stigmina lautii |
dark fruiting bodies developing from stomates on a blue spruce needle |
| 5492337 |
Rhizosphaera needle cast |
Rhizosphaera spp. |
Pycnidia of a Rhizosphaera sp. on a spruce needle. |
| 5492316 |
Cytospora cankers |
Cytospora spp. |
Close up of a pycnidial stroma of Cytospora in cross section |
| 5492310 |
Cytospora cankers |
Cytospora spp. |
Pycnidial stromata exposed when bark cut away from spruce canker |
| 5458679 |
Dermea |
Dermea sp. |
conidia |
| 5458674 |
Alternaria black molds / stem cankers |
Alternaria spp. |
Alternaria leaf spot. |
| 5461581 |
daffodils |
Narcissus spp. |
|
| 5461579 |
plum/cherry |
Prunus spp. |
|
| 5461582 |
daffodils |
Narcissus spp. |
|
| 5461580 |
daffodils |
Narcissus spp. |
|
| 5461583 |
daffodils |
Narcissus spp. |
|
| 5461585 |
daffodils |
Narcissus spp. |
|
| 5461587 |
daffodils |
Narcissus spp. |
|
| 5461593 |
daffodils |
Narcissus spp. |
|
| 5461589 |
tulip |
Tulipa spp. |
|
| 5461590 |
tulip |
Tulipa spp. |
|
| 5461586 |
daffodils |
Narcissus spp. |
|
| 5461584 |
daffodils |
Narcissus spp. |
|
| 5461588 |
daffodils |
Narcissus spp. |
|
| 5461600 |
daffodils |
Narcissus spp. |
|
| 5461601 |
crabapple and apple |
Malus spp. |
|
| 5461599 |
daffodils |
Narcissus spp. |
|
| 5461603 |
primrose |
Primula spp. |
Primrose, yellow |
| 5461604 |
trillium |
Trillium spp. |
|
| 5458666 |
black root rot |
Thielaviopsis basicola |
Wilting of plant with Black Root Rot. |
| 5458664 |
Plectosporium blight |
Plectosporium tabacinum |
diamond shaped lesions on petiole |
| 5457964 |
Dothiostroma fungus |
Dothistroma spp. |
Conidia |
| 5458691 |
gardens |
|
|
| 5458342 |
nursery operations |
|
Perennial container production. |
| 5458698 |
nursery operations |
|
Retention pond at a wholesale nursery. |
| 5458084 |
Japanese apple rust |
Gymnosporangium yamadae |
|
| 5461618 |
stem and bulb nematode |
Ditylenchus dipsaci |
Bloat nematode injury |
| 5461619 |
forest tent caterpillar |
Malacosoma disstria |
single young larva |
| 5461617 |
forest tent caterpillar |
Malacosoma disstria |
injury to dogwood by forest tent caterpillars |
| 5461615 |
puccinia rusts |
Puccinia spp. |
rust on buckthorn |
| 5461613 |
anthracnose |
Colletotrichum spp. |
hyphopodia |
| 5461611 |
stem and bulb nematode |
Ditylenchus dipsaci |
Garlic Bloat Nematode symptoms |
| 5461610 |
stem and bulb nematode |
Ditylenchus dipsaci |
Garlic Bloat Nematode symptoms |
| 5458656 |
spruce needle rust |
Chrysomyxa weirii |
Individual Chrysomyxa weirii rust pustule swelling and splitting open on a blue spruce needle. |
| 5458622 |
blade spruce Gall adelgid |
Adelges laricis |
Eggs are laid at the base of needles. The newly hatched black colored nymphs can be seen on the needles in this photo. |
| 5461628 |
bleeding heart |
Dicentra spp. |
pink bleeding heart |
| 5461609 |
gray molds |
Botrytis spp. |
Botrytis condidiophores with spores |
| 5457957 |
late blight |
Phytophthora infestans |
Sporangia of Phytophthora infestans. |
| 5457968 |
late blight |
Phytophthora infestans |
Sporangia of Phytophthora infestans. |
| 5458709 |
Japanese apple rust |
Gymnosporangium yamadae |
Aeciospores and peridial cells |
| 5458707 |
Japanese apple rust |
Gymnosporangium yamadae |
Aeciospores and peridial cells. |
| 5458708 |
Japanese apple rust |
Gymnosporangium yamadae |
Close view of aeciospores |
| 5458655 |
spruce needle rust |
Chrysomyxa weirii |
Chrysomyxa weirii spores |
| 5458677 |
black vine weevil |
Otiorhynchus sulcatus |
Two adult black vine weevils. Look closer to see white nymph in lower right corner. |
| 5458661 |
Plectosporium blight |
Plectosporium tabacinum |
symptoms on upper leaf surface |
| 5457969 |
maple cankers |
Stegonsporium spp. |
Dark fruiting bodies emerging from blighted maple twig |
| 5458705 |
Japanese apple rust |
Gymnosporangium yamadae |
Close-up of surface of gall on Juniper. |
| 5458706 |
Japanese apple rust |
Gymnosporangium yamadae |
Close view of the spore producing surface of a gall. |
| 5458085 |
Japanese apple rust |
Gymnosporangium yamadae |
Upper leaf surface |
| 5457974 |
Inonotus cankers |
Inonotus spp. |
View through fungal pores showing setae. Image is a composite of several photos layered together. |
| 5458657 |
spruce needle rust |
Chrysomyxa weirii |
Immature Chrysomyxa weirii rust pustules on blue spruce needles. Note slight swellings where fruiting bodies are developing within yellow-orange spots on needles. |
| 5458099 |
Boxwood blight |
Cylindrocladium buxicola |
vesicles and spores. |
| 5458096 |
Boxwood blight |
Cylindrocladium buxicola |
Dense production of fruiting bodies on leaf surface with vesicles emerging above spore masses. |
| 5458095 |
Boxwood blight |
Cylindrocladium buxicola |
fruiting bodies on leaf surface |
| 5457972 |
maple cankers |
Stegonsporium spp. |
dark spores |
| 5457973 |
maple cankers |
Stegonsporium spp. |
fruiting body with mature spores |
| 5458300 |
black stem, stalk rot |
Thielaviopsis spp. |
dark aleuriospores from a holly root |
| 5458678 |
Dutch elm disease (novi-ulmi) |
Ophiostoma novo-ulmi |
Synnemata |
| 5458688 |
Stigmina leaf spot |
Stigmina lautii |
|
| 5458672 |
leaf scorch of shade trees |
Xylella fastidiosa ssp. multiplex |
Bacterial Leaf Scorch symptoms on oak leaves. |
| 5458670 |
bacterial leaf scorch |
Xylella fastidiosa |
Symptoms of Bacterial Leaf Scorch on maple leaves. Note distinct bands between green and brown foliage on some leaves. |
| 5458681 |
Impatiens Necrotic Spot Virus |
Tospovirus INSV |
Foliar symptoms. |
| 5458715 |
downy mildew |
Plasmopara viburni |
Lesions on the underside of a leaf. Note how many individual lesions appear angular as lesions develop between small leaf veins. |
| 5458716 |
downy mildew |
Plasmopara viburni |
Close view of adjacent lesions on the underside of a leaf. Sparser white growth is the least mature. |
| 5458714 |
downy mildew |
Plasmopara viburni |
Lesions on the upper surface of a leaf. |
| 5458301 |
black stem, stalk rot |
Thielaviopsis spp. |
Chalara state showing conidiophores and a few pale single-cell endospores |
| 5458711 |
downy mildew |
Plasmopara viburni |
Lesions on the underside of a leaf. |
| 5457979 |
Inonotus cankers |
Inonotus spp. |
Fruiting body removed from the base of a living tree |
| 5458623 |
blade spruce Gall adelgid |
Adelges laricis |
Waxy secretion on larch needles. |
| 5458624 |
blade spruce Gall adelgid |
Adelges laricis |
Eggs are laid at the base of needles. |
| 5458094 |
Boxwood blight |
Cylindrocladium buxicola |
vesicles of the fungus with diamond shaped tips |
| 5458079 |
basil downy mildew |
Peronospora belbahrii |
sporangia |
| 5458086 |
basil downy mildew |
Peronospora belbahrii |
Masses of purplish sporangia on the undersurface of a leaf. |
| 5458087 |
basil downy mildew |
Peronospora belbahrii |
Masses of purplish sporangia on the undersurface of a leaf. |
| 5458081 |
Japanese apple rust |
Gymnosporangium yamadae |
Aecia on the underside of a crabapple leaf. |
| 5457977 |
balsam twig aphid |
Mindarus abietinus |
two balsam twig aphid eggs on bark |
| 5457980 |
Inonotus cankers |
Inonotus spp. |
Underside of fruiting structure collected from the base of a tree. |
| 5458376 |
rust |
Puccinia pelargonii-zonalis |
Lesions on underside of leaf, close view |
| 5458377 |
rust |
Puccinia pelargonii-zonalis |
a single teliospore |
| 5458378 |
rust |
Puccinia pelargonii-zonalis |
Urediniospores |
| 5458379 |
rust |
Puccinia pelargonii-zonalis |
Close view of one lesion on the underside of an infected leaf. Note the pustules breaking open in the center where spores are being liberated. |
| 5458382 |
rust |
Puccinia pelargonii-zonalis |
Foliar lesions as viewed on underside of infected leaf. |
| 5458384 |
rust |
Puccinia pelargonii-zonalis |
Underside of severely infected geranium leaf. Note the lesion on the petiole. |
| 5458383 |
rust |
Puccinia pelargonii-zonalis |
Numerous foliar lesions as viewed on underside of infected leaf. |
| 5458385 |
rust |
Puccinia pelargonii-zonalis |
Upper surface of severely infected geranium leaf. Note the lesion on the petiole. |
| 5457975 |
anthracnose |
Colletotrichum spp. |
Colletotrichum acervuli with setae developing on butternut squash. |
| 5458353 |
downy spot |
Microstroma juglandis |
The fungus sporulates on lower leaf surfaces in a dense white mat of fungal tissue. |
| 5458595 |
oak bullet gall |
Disholcaspis quercusglobulus |
Oak bullet galls caused by cynipid wasps. |
| 5458357 |
fourlined plant bug |
Poecilocapsus lineatus |
Fourlined Plantbug Nymph on forsythia. |
| 5458613 |
rose rosette disease |
Emaravirus RRD |
Witches' broom of rose rosette disease with bright red shoots emerging in the spring. |
| 5458603 |
Rhabdocline needlecast |
Rhabdocline weirii |
The fruiting bodies rupture the needle epidermis in spring exposing the spore bearing areas. |
| 5458617 |
viburnum leaf beetle |
Pyrrhalta viburni |
Viburnum leaf beetle egg masses are laid on terminal twigs of viburnums. |
| 5458618 |
western conifer-seed bug |
Leptoglossus occidentalis |
Western conifer-seed bug adult on Scots pine. |
| 5458615 |
black horse fly |
Tabanus atratus |
black horsefly larva |
| 5458100 |
Boxwood blight |
Cylindrocladium buxicola |
Vesicles and cylindrical conidia. |
| 5458080 |
basil downy mildew |
Peronospora belbahrii |
Sporangia |
| 5458047 |
protozoa |
Spongospora subterranea f.sp. subterranea |
Spores balls or cystosori collected from lesions. |
| 5457978 |
Boxwood blight |
Cylindrocladium buxicola |
Boxwood blight pathogen showing vesicles extending above spore clusters. |
| 5457981 |
Boxwood blight |
Cylindrocladium buxicola |
Conidiophores developing on a leafspot. |
| 5457959 |
brown rots |
Monilinia spp. |
fruiting bodies on twig |
| 5457958 |
brown rots |
Monilinia spp. |
fruiting bodies on leaf tissue |
| 5458358 |
rust |
Puccinia malvacearum |
Hollyhock rust pustules on lower surface of hollyhock leaf. |
| 5458339 |
nursery operations |
|
Container production at a wholesale nursery. |
| 5458340 |
nursery operations |
|
Young trees in production field. |
| 5458341 |
nursery operations |
|
Tree production at a nursery. |
| 5458343 |
nursery operations |
|
Perennial container production. |
| 5458344 |
nursery operations |
|
Yellow sticky cards for monitoring in a commercial greenhouse. |
| 5458345 |
nursery operations |
|
Container production at a wholesale nursery. |
| 5458346 |
nursery operations |
|
Container production in a commercial greenhouse. |
| 5458347 |
nursery operations |
|
Conifer seedlings. Tree production at a wholesale nursery. |
| 5458348 |
nursery operations |
|
Rows of young trees in a wholesale nursery. |
| 5458048 |
protozoa |
Spongospora subterranea |
Cytosori or spore balls of Spongospora subterranea. |
| 5457976 |
balsam twig aphid |
Mindarus abietinus |
A single dark egg covered with thin rods of light colored wax which gives the egg a silvery appearance. |
| 5457963 |
Dutch elm disease (novi-ulmi) |
Ophiostoma novo-ulmi |
Synemmata developing within a wound on an elm branch. |
| 5457967 |
gummy stem blight (vine decline) |
Didymella bryoniae |
Symptoms developing on fruit post harvest. |
| 5458104 |
mycelial neck rot |
Botrytis tulipae |
Dieback of leaf tips and neck rot, with dark fungal sclerotia present on rotted tissue of the bulb. |
| 5458050 |
eyed click beetle |
Alaus oculatus |
Adult eyed click beetle on firewood. |
| 5458051 |
quince rust |
Gymnosporangium clavipes |
Gelatinous telial mass oozing out of small branch swelling. |
| 2130081 |
broad-nosed weevil |
Otiorhynchus raucus |
|
| 2130080 |
bark beetle |
Hylurgops palliatus |
|
| 2130077 |
goldenhaired bark beetle |
Hylurgus ligniperda |
|
| 2115082 |
cedar bark beetles |
Phloeosinus spp. |
Antennal club with three oblique sutures; funicle attached to base of club; eye deeply emarginate; hosts Cupressinine trees |
| 2116007 |
shoot beetles |
Tomicus spp. |
Elytra with erect interstrial setae in uniseriate rows; elytra smooth, shinning |
| 2116001 |
bark beetles |
Scolytodes spp. |
Anterior area of pronotum transversely rugose; pronotum and elytra subglabrous |
| 2115095 |
bark beetles |
Polygraphus spp. |
Eye completely divided into two parts; antennal club solid , unmarked by sutures |
| 2116016 |
bark beetles |
Xylechinus spp. |
Elytral interstriae with a row of erect, flattened scales in addition to recumbant ground cover; antennal funicle 5-segmented |
| 2115100 |
bark beetles |
Pycnarthrum spp. |
Pronotum uniformly punctured, unarmed; vestiture of pronotum and elytra abundant, consisting of erect, stout almost scale-like bristles |
| 5424410 |
sugar maple |
Acer saccharum |
Leaves of silver maple showing marginal leaf scorch with distinct bands of discoloration between scorched and symptomless tissue caused by the bacterium, Xylella fastidiosa. |
| 2115085 |
bark beetles |
Phloeotribus spp. |
|
| 2115059 |
bark beetles |
Hylocurus spp. |
Sutures of antennal club broadly procurved; scape club-shaped, with few setae; eye oval small |
| 2115062 |
bark beetles |
Hylurgops spp. |
Pronotum usually constricted anteriorly, discal surface with about equal numbers of small and large punctures intermixed; 3rd tarsomere bilobed |
| 2115051 |
bark beetles |
Hylastes spp. |
Pronotum not noticeably constricted anteriorly, discal surface with punctures uniformly large; 3rd tarsomere narrower, elongate |
| 2116003 |
true fir bark beetles |
Scolytus spp. |
Scutellum depressed; elytra slightly if at all declivous behind, the abdomen ascending abruptly to meet them; antennal scape distinctly shorter than funicle |
| 2115097 |
bark beetles |
Pseudohylesinus spp. |
Elytral interstriae bearing a row of erect, hair-like setae, ground cover scale-like; antennal funicle 7-segmented |
| 2115078 |
bark beetles |
Orthotomicus spp. |
Antennal club obliquely truncate, with sutures recurved; elytral declivity less strongly excavated, the third tooth displaced messally, not on summit of declivital margin |
| 2115065 |
bark beetles |
Hylurgus spp. |
Elytra with erect interstrial setae abundant, randomly placed; elytra densely rugose |
| 2115086 |
bark beetles |
Phloeotribus spp. |
|
| 2115026 |
bark beetles |
Cnesinus spp. |
Sutures of antennal club straight; body and frons not as below |
| 2115040 |
bark beetles |
Dendrosinus spp. |
Antennal club symmetrical, sutures transverse; posteriolateral area of pronotum abruptly grooved to accommodate elytral margins; elytra extended anteriorly over pronotum |
| 2115031 |
ambrosia beetles |
Corthylus spp. |
Antennal funicle 1-segmented; posterior face of foretibiae smooth; elytra evennly rounded behind, without a sutural notch at apex |
| 2115024 |
bark beetles |
Cnemonyx spp. |
Scutellum small, flush with surface of elytra ; elytral declivity rather steep, descending to meet the horizontal abdomen; antennal scape at least as long as funicle |
| 2115011 |
bark beetles |
Pityogenes spp. |
|
| 2115009 |
bark beetles |
Hypothenemus spp. |
|
| 2115008 |
bark beetles |
Hylurgops spp. |
|
| 2134072 |
swede midge |
Contarinia nasturtii |
Damaged transplant - swollen petiole, brown scars |
| 2134069 |
swede midge |
Contarinia nasturtii |
Damaged red cabbage |
| 2134071 |
swede midge |
Contarinia nasturtii |
Damaged plant - leaf twisting, brown scarring |
| 2134068 |
swede midge |
Contarinia nasturtii |
Swede midge damaged plant. Note brown scarring, multiple stems, twisted leaves. |
| 2130078 |
black vine weevil |
Otiorhynchus sulcatus |
|
| 2130079 |
alfalfa snout beetle |
Otiorhynchus ligustici |
|
