| 5492329 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Posterior region of pine wood (pine wilt) nematode adult male |
| 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 |
| 5492322 |
Rhizosphaera needle cast |
Rhizosphaera spp. |
Fruiting bodies developing from stomates on a spruce needle |
| 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) |
| 5492328 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Posterior region of pine wood (pine wilt) nematode adult male |
| 5492314 |
Cytospora cankers |
Cytospora spp. |
Cytospora/spruce canker: cross section of Cytospora pycnidial stroma |
| 5492315 |
Cytospora cankers |
Cytospora spp. |
The tip of a pycnidial stroma just visible breaking through the bark on a spruce branch with Cytospora canker |
| 5492317 |
Cytospora cankers |
Cytospora spp. |
yellow tendrils of conidia oozing from pycnidial stromata of a Cytospora sp. developing in an infected spruce branch |
| 5492312 |
Cytospora cankers |
Cytospora spp. |
Pycnidial stromata of Cytospora sp. showing yellowish spores oozing from fruiting bodies after bark cut away and tissue moistened. |
| 5492309 |
Cytospora cankers |
Cytospora spp. |
Tendril of spores (conidia) oozing from pycnidial stroma of a Cytospora sp. |
| 5492333 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Anterior half of a pine wood (pine wilt) nematode |
| 5492335 |
pine wilt nematode |
Bursaphelenchus xylophilus |
view of head region of an individual Bursaphelenchus nematode |
| 5492336 |
Rhizosphaera needle cast |
Rhizosphaera spp. |
Rhizosphaera pycnidia on spruce |
| 5492338 |
Rhizosphaera needle cast |
Rhizosphaera spp. |
Close-up view of Rhizosphaera fruiting bodies developing from stomates on a spruce needle. White caps of wax and colorless masses of spores visible on top of pycnidia. |
| 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 |
| 5484085 |
brown spot needle blight of pine |
Mycosphaerella dearnessii |
Fruiting bodies on Easter white pine needle. |
| 5484086 |
brown spot needle blight of pine |
Mycosphaerella dearnessii |
Olive brown spores. |
| 5492307 |
Cytospora cankers |
Cytospora spp. |
Pycnidial stromata of Cytospora exposed in bark of a spruce branch |
| 5492308 |
Cytospora cankers |
Cytospora spp. |
Cross section through a pycnidial stroma in bark of a blue spruce branch |
| 5492331 |
Ploioderma fungi |
Ploioderma spp. |
Appearance of immature fruiting bodies as observed on needles in spring |
| 5492311 |
Cytospora cankers |
Cytospora spp. |
Pycnidial stromata of Cytospora sp. showing yellowish spores oozing from fruiting bodies after bark was cut away and tissue moistened. |
| 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. |
| 5492334 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Anterior region of a pine wood (pine wilt) nematode showing metacorpus |
| 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 |
| 5461620 |
spruce bud scale |
Physokermes piceae |
spruce bud scale |
| 5461621 |
spruce bud scale |
Physokermes piceae |
spruce bud scale close view |
| 5474436 |
defoliation due to unknown cause |
|
|
| 5458679 |
Dermea |
Dermea sp. |
conidia |
| 5461579 |
plum/cherry |
Prunus spp. |
|
| 5461601 |
crabapple and apple |
Malus spp. |
|
| 5457964 |
Dothiostroma fungus |
Dothistroma spp. |
Conidia |
| 5458690 |
diagnostic lab sample |
|
Small arthropods such as scale insects, can be submitted on the host plant, double bagged or in a vial. |
| 5458691 |
gardens |
|
|
| 5458084 |
Japanese apple rust |
Gymnosporangium yamadae |
|
| 5458619 |
Asian longhorned beetle |
Anoplophora glabripennis |
Adult Asian longhorned beetle. |
| 5458620 |
Asian longhorned beetle |
Anoplophora glabripennis |
Adult Asian longhorned beetles. |
| 5458621 |
Asian longhorned beetle |
Anoplophora glabripennis |
Adult Asian longhorned beetle. |
| 5458641 |
snow and ice damage (snow load) |
|
Heavy snow from January 2011 storm. |
| 5458642 |
snow and ice damage (snow load) |
|
Heavy snow from January 2011 storm. |
| 5458643 |
snow and ice damage (snow load) |
|
Heavy snow from January 2011 storm. |
| 5458644 |
snow and ice damage (snow load) |
|
Heavy snow from January 2011 storm. |
| 5458645 |
snow and ice damage (snow load) |
|
Heavy snow from January 2011 storm. |
| 5458646 |
snow and ice damage (snow load) |
|
Heavy snow from January 2011 storm. |
| 5461619 |
forest tent caterpillar |
Malacosoma disstria |
single young larva |
| 5461614 |
forest tent caterpillar |
Malacosoma disstria |
injury to dogwood by forest tent caterpillars |
| 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. |
| 5458599 |
Ploioderma needle cast of pine |
Ploioderma lethale |
Ploioderma needlecast fruiting structure in mid-June in upstate New York. |
| 5458707 |
Japanese apple rust |
Gymnosporangium yamadae |
Aeciospores and peridial cells. |
| 5458708 |
Japanese apple rust |
Gymnosporangium yamadae |
Close view of aeciospores |
| 5458709 |
Japanese apple rust |
Gymnosporangium yamadae |
Aeciospores and peridial cells |
| 5458710 |
Japanese apple rust |
Gymnosporangium yamadae |
Teliospores from gall on juniper |
| 5458680 |
Japanese apple rust |
Gymnosporangium yamadae |
Gall on juniper. |
| 5458677 |
black vine weevil |
Otiorhynchus sulcatus |
Two adult black vine weevils. Look closer to see white nymph in lower right corner. |
| 5458655 |
spruce needle rust |
Chrysomyxa weirii |
Chrysomyxa weirii spores |
| 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. |
| 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. |
| 5458658 |
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. |
| 5458659 |
spruce needle rust |
Chrysomyxa weirii |
Chrysomyxa weirii rust pustules on blue spruce needles showing the release of masses of infectious spores. |
| 5458665 |
Ploioderma needle cast of pine |
Ploioderma lethale |
Eight mature ascospores |
| 5457972 |
maple cankers |
Stegonsporium spp. |
dark spores |
| 5457973 |
maple cankers |
Stegonsporium spp. |
fruiting body with mature spores |
| 5458667 |
bacterial leaf scorch |
Xylella fastidiosa |
Bacterial Leaf Scorch symptoms on maple leaves. |
| 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. |
| 5458668 |
bacterial leaf scorch |
Xylella fastidiosa |
Bacterial Leaf Scorch and Black Spot on an elm leaf. |
| 5458669 |
bacterial leaf scorch |
Xylella fastidiosa |
Bacterial Leaf Scorch symptoms on elm. |
| 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. |
| 5458671 |
bacterial leaf scorch |
Xylella fastidiosa |
Bacterial Leaf Scorch symptoms on maple leaves. |
| 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. |
| 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 |
| 5458595 |
oak bullet gall |
Disholcaspis quercusglobulus |
Oak bullet galls caused by cynipid wasps. |
| 5458353 |
downy spot |
Microstroma juglandis |
The fungus sporulates on lower leaf surfaces in a dense white mat of fungal tissue. |
| 5458596 |
juniper-pear rust |
Gymnosporangium sabinae |
Orangish lesion on the upperside of a pear leaf. |
| 5458597 |
Rimosus decay |
Phellinus robiniae |
Fruiting body on trunk. |
| 5458598 |
pheromone traps |
|
Dogwood borer pheromone trap. |
| 5458600 |
question mark |
Polygonia interrogationis |
Question Mark Caterpillar Larva. |
| 5458601 |
quince rust |
Gymnosporangium clavipes |
Cedar-quince rust aecia on hawthorn fruit. |
| 5458602 |
quince rust |
Gymnosporangium clavipes |
|
| 5458603 |
Rhabdocline needlecast |
Rhabdocline weirii |
The fruiting bodies rupture the needle epidermis in spring exposing the spore bearing areas. |
| 5458636 |
Rhabdocline needlecast |
Rhabdocline weirii |
Rhabdocline apothecia are released when flaps of leaf epidermis fold back on either side of the midrib. |
| 5458614 |
roundheaded apple tree borer |
Saperda candida |
Roundheaded apple tree borer adult. |
| 5458618 |
western conifer-seed bug |
Leptoglossus occidentalis |
Western conifer-seed bug adult on Scots pine. |
| 5458338 |
ash flower gall mite |
Eriophyes fraxiniflora |
Ash flower gall mite damage(distorted male flowers which have turned brown) as it appeared in August. |
| 5458336 |
bark lice (Family Psocidae) |
|
Barklice are gregarious and cluster together. |
| 5458337 |
tar spot of maple |
Rhytisma acerinum |
Black tar-like fruiting structures on the upper side of leaves are diagnostic signs of giant tar spot. |
| 5458349 |
balsam gall midge |
Paradiplosis tumifex |
Galled needles on balsam fir. |
| 5458351 |
balsam woolly adelgid |
Adelges piceae |
Damage in the form of swollen, deformed branches. |
| 5458360 |
mountain-ash sawfly |
Pristiphora geniculata |
|
| 5458355 |
euonymus caterpillar |
Yponomeuta cagnagella |
Euonymus caterpillars in web. |
| 5458356 |
ocellate gall midge |
Acericecis ocellaris |
Eyespot gall on a red maple leaf caused by the larvae of a midge. |
| 5458322 |
walnut twig beetle |
Pityophthorus juglandis |
Walnut twig beetle residing in a gallery under the bark of black walnut. |
| 5458323 |
walnut twig beetle |
Pityophthorus juglandis |
Walnut twig beetle demonstration of extremely small size. Pulled out of a gallery and shown on the end of a craft brush. |
| 5458324 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease showing walnut twig beetle galleries and Geosmithia morbida cankers on black walnut. |
| 5458325 |
walnut twig beetle |
Pityophthorus juglandis |
Entrance and exit holes of the walnut twig beetle on black walnut. |
| 5458326 |
walnut twig beetle |
Pityophthorus juglandis |
Walnut twig beetle larvae residing in a gallery under the bark of a black walnut. |
| 5458327 |
walnut twig beetle |
Pityophthorus juglandis |
Walnut twig beetle larvae residing in a gallery under the bark of a black walnut. |
| 5458328 |
walnut twig beetle |
Pityophthorus juglandis |
Walnut twig beetle larvae residing in a gallery under the bark of a black walnut. |
| 5458329 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease symptoms of flagging on a mature black walnut. |
| 5458330 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease symptoms on a mature black walnut. |
| 5458331 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease symptoms of flagging on a mature black walnut. |
| 5458332 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease symptoms of flagging on a mature black walnut. |
| 5458333 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease symptoms of advanced decline on a mature black walnut. |
| 5458334 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease symptoms of advanced decline on a mature black walnut. |
| 5458335 |
Thousand Cankers Disease |
Geosmithia morbida |
Thousand cankers disease symptoms of advanced decline on a mature black walnut. |
| 5458340 |
nursery operations |
|
Young trees in production field. |
| 5458341 |
nursery operations |
|
Tree production at a nursery. |
| 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. |
| 5457955 |
bacterial leaf scorch |
Xylella fastidiosa |
Bacterial leaf scorch on Ulmus spp. |
| 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. |
| 5458064 |
diagnostic lab sample |
|
Proper sampling technique. Suspect significant pathogens should be double bagged in sealable bags, then placed in a crush proof box. Always remember to include a sample submission form; filled out as much as possible and include it in the outermost shipping container. |
| 5458049 |
elm sawfly |
Cimbex americana |
Elm sawfly larva on a birch tree leaf in September. |
| 5458051 |
quince rust |
Gymnosporangium clavipes |
Gelatinous telial mass oozing out of small branch swelling. |
| 0656059 |
Elm yellows |
Phytoplasma N/A |
Necrotic rootlets on Ulmus americana caused by elm phloem necrosis MLO infection. |
| 0656058 |
Elm yellows |
Phytoplasma N/A |
Phloem discoloration in Ulmus americana caused by elm phloem necrosis phytoplasma infection; healthy (top) and diseased (bottom). |
| 5357466 |
Dutch elm disease |
Ophiostoma ulmi |
Elm tree aflicted with Dutch elm disease (Ophiostoma ulmi). |
| 5357465 |
elm |
Ulmus spp. |
Healthy elm tree in a neighborhood. |
| 5174038 |
imported willow leaf beetle |
Plagiodera versicolora |
|
| 0949053 |
Asian longhorned beetle |
Anoplophora glabripennis |
exit holes |
