| 5492329 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Posterior region of pine wood (pine wilt) nematode adult male |
| 5492328 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Posterior region of pine wood (pine wilt) nematode adult male |
| 5492322 |
Rhizosphaera needle cast |
Rhizosphaera spp. |
Fruiting bodies developing from stomates on a spruce needle |
| 5492333 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Anterior half of a pine wood (pine wilt) nematode |
| 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. |
| 5492336 |
Rhizosphaera needle cast |
Rhizosphaera spp. |
Rhizosphaera pycnidia on spruce |
| 5492335 |
pine wilt nematode |
Bursaphelenchus xylophilus |
view of head region of an individual Bursaphelenchus nematode |
| 5492308 |
Cytospora cankers |
Cytospora spp. |
Cross section through a pycnidial stroma in bark of a blue spruce branch |
| 5484092 |
late blight |
Phytophthora infestans |
Late blight internal symptom in green fruit |
| 5484091 |
late blight |
Phytophthora infestans |
late blight symptom on green fruit surface |
| 5484097 |
red-banded fungus beetle |
Megalodacne fasciata |
Red-banded fungus beetle larvae and an adult with tunnels in fungal conk. |
| 5484096 |
red-banded fungus beetle |
Megalodacne fasciata |
Red-banded fungus beetle larvae and an adult. |
| 5484093 |
red-banded fungus beetle |
Megalodacne fasciata |
Red-banded fungus beetle larva close-up of head and legs |
| 5484099 |
red-banded fungus beetle |
Megalodacne fasciata |
Red-banded fungus beetle larvae and an adult with tunnels in fungal conk. |
| 5484095 |
red-banded fungus beetle |
Megalodacne fasciata |
Red-banded fungus beetle larvae and an adult. |
| 5484098 |
red-banded fungus beetle |
Megalodacne fasciata |
Red-banded fungus beetle larvae and an adult with tunnels in fungal conk. |
| 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. |
| 5461626 |
|
Uncinula sp. |
cleistothecium with appendages |
| 5492334 |
pine wilt nematode |
Bursaphelenchus xylophilus |
Anterior region of a pine wood (pine wilt) nematode showing metacorpus |
| 5492321 |
late blight |
Phytophthora infestans |
Cut surface exposing internal symptoms of tuber infected with Phytophthora infestans |
| 5461627 |
|
Uncinula sp. |
|
| 5461621 |
spruce bud scale |
Physokermes piceae |
spruce bud scale close view |
| 5461620 |
spruce bud scale |
Physokermes piceae |
spruce bud scale |
| 5461607 |
biological control (general) |
|
close up of a parasitized aphid with parasite inside aphid mummy |
| 5474515 |
Notodontid moth |
Datana spp. |
Caterpillars eating blueberry leaves. |
| 5461605 |
biological control (general) |
|
Parasitoid that has just emerged from a mummified aphid. |
| 5461606 |
biological control (general) |
|
Parasitoid ready to emerge from mummified aphid |
| 5461608 |
aphids |
Aphis spp. |
Parasitoid inside mummified aphid. |
| 2115048 |
ambrosia beetle |
Euwallacea spp. |
Pronotum asperate only on anterior half, punctate on basal half; declivity more sloping, bearing small tubercles, strial and interstrial punctures larger |
| 5461616 |
forest tent caterpillar |
Malacosoma disstria |
view of head |
| 5461612 |
gray molds |
Botrytis spp. |
conidiophores and spores |
| 5458710 |
Japanese apple rust |
Gymnosporangium yamadae |
Teliospores from gall on juniper |
| 5458663 |
Plectosporium blight |
Plectosporium tabacinum |
Close up of symptoms on fruit. |
| 5458662 |
Plectosporium blight |
Plectosporium tabacinum |
diamond shaped lesions on leaf veins |
| 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 |
| 5458686 |
downy mildew |
Peronospora sparsa |
Sporangia. |
| 5458685 |
downy mildew |
Peronospora sparsa |
Sporangia. |
| 5458088 |
mycelial neck rot |
Botrytis tulipae |
Dark fungal sclerotia developing on roots might be mistaken for clumps of media. |
| 5458712 |
downy mildew |
Plasmopara viburni |
Close-up view of lesions on the underside of a leaf. |
| 5458713 |
downy mildew |
Plasmopara viburni |
Fruiting bodies developing along a vein on the underside of the leaf. |
| 5458380 |
rust |
Puccinia pelargonii-zonalis |
Urediniospores and Teliospores. |
| 5458381 |
rust |
Puccinia pelargonii-zonalis |
Numerous urediniospores with a few two celled teliospores also visible. |
| 5458386 |
rust |
Puccinia pelargonii-zonalis |
A single lesion on the underside of an infected leaf. This lesion looks like a happy face. |
| 5458302 |
black stem, stalk rot |
Thielaviopsis spp. |
dark aleuriospores breaking up into individual chlamydospores |
| 5458601 |
quince rust |
Gymnosporangium clavipes |
Cedar-quince rust aecia on hawthorn fruit. |
| 5458598 |
pheromone traps |
|
Dogwood borer pheromone trap. |
| 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. |
| 5458089 |
mycelial neck rot |
Botrytis tulipae |
Symptoms of Botrytis tulipae, Tulip Fire, on leaves and petioles. |
| 5458105 |
mycelial neck rot |
Botrytis tulipae |
Dark sclerotia developing on an infected bulb. |
| 5458093 |
mycelial neck rot |
Botrytis tulipae |
Tulip Fire: foliar symptoms caused by Botrytis tulipae. |
| 5458049 |
elm sawfly |
Cimbex americana |
Elm sawfly larva on a birch tree leaf in September. |
| 2116018 |
ambrosia beetles |
Xylosandrus spp. |
Procoxae widely separated; body stout, elytra less than 1.3 times as lng as pronotum |
| 2116021 |
ambrosia beetles |
Xyloterinus spp. |
|
| 2116011 |
bark beetles |
Xyleborinus spp. |
|
| 2116015 |
bark beetles |
Xylechinus spp. |
|
| 2116019 |
ambrosia beetles |
Xyloterinus spp. |
|
| 2116006 |
shoot beetles |
Tomicus spp. |
|
| 2115080 |
cedar bark beetles |
Phloeosinus spp. |
|
| 2115081 |
cedar bark beetles |
Phloeosinus spp. |
Antennal club with three oblique sutures; funicle attached to base of club; eye deeply emarginate; hosts Cupressinine trees |
| 2115061 |
bark beetles |
Hylurgopinus spp. |
Elytral vestiture hair-like; antennal club slightly flattened; in Ulmus |
| 2115057 |
ash bark beetles |
Hylesinus spp. |
Eye entire; vestiture scale-like; hosts Fraxinus |
| 2115073 |
bark beetles |
Micracisella spp. |
Eye subcontiguous beneath, emarginate |
| 2115076 |
bark beetles |
Orthotomicus spp. |
|
| 2115090 |
bark beetles |
Pityokteines spp. |
|
| 2115098 |
bark beetles |
Pseudopityophthorus spp. |
|
| 2116005 |
bark beetles |
Thysanoes spp. |
Pronotum longer than wide, widest near middle, summit less prominent |
| 2115093 |
twig beetles |
Pityophthorus spp. |
|
| 2115079 |
bark beetles |
Pagiocerus spp. |
Sutures of antennal club procurved; body oval; frons excavated with median tubercle just above epistoma |
| 2115089 |
bark beetles |
Pityogenes spp. |
Female frons deeply, rather narrowly excavated; male declivity with 2 or 3 pairs of enlarged teeth; antennal club compressed, 2 sutures visible on distal third of posterior face |
| 2115092 |
bark beetles |
Pityokteines spp. |
Female frons convex; male declivity more narrowly impressed with 2 or 3 pairs of very small teeth or granules; antennal club obliquely truncate, without sutures on posterior face |
| 2115077 |
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 |
| 2116020 |
ambrosia beetles |
Xyloterinus spp. |
Antennal club with subcorneous basal area broadly procurved; protibia flattened and devoid of tubercles on posterior face; frons not excavated in either sex; anterior margin of pronotum rounded in both sexes |
| 2116012 |
bark beetles |
Xyleborinus spp. |
Scutellum conical; lower margin of declivity, beginning about interspace 7, bearing a series of pointed tubercles, the one nearest suture largest |
| 2116017 |
ambrosia beetles |
Xylosandrus spp. |
|
| 2115066 |
bark beetles |
Hypothenemus spp. |
|
| 2115072 |
bark beetles |
Micracisella spp. |
|
| 2115053 |
bark beetles |
Hylastinus spp. |
Prothoracic precoxal area large, lateral margins strongly elevated from anterior margin to coxae |
| 2115064 |
bark beetles |
Hylurgus spp. |
|
| 2115075 |
bark beetles |
Monarthrum spp. |
Antennal funicle 2-segmented; posterior surface of foretibiae tuberculate; elytra emarginate or divarcate at sutural apex |
| 2115074 |
bark beetles |
Monarthrum spp. |
Antennal funicle 2-segmented; posterior surface of foretibiae tuberculate; elytra emarginate or divarcate at sutural apex |
| 2115055 |
ash bark beetles |
Hylesinus spp. |
|
| 2115071 |
bark beetles |
Micracis spp. |
Eye moderately separated beneath, entire |
| 2115052 |
bark beetles |
Hylastes spp. |
|
| 2115050 |
ambrosia beetle |
Euwallacea spp. |
Pronotum asperate only on anterior half, punctate on basal half; declivity more sloping, bearing small tubercles, strial and interstrial punctures larger |
| 2116002 |
true fir bark beetles |
Scolytus spp. |
|
| 2115054 |
bark beetles |
Hylastinus spp. |
|
| 2115083 |
bark beetles |
Phloeotribus spp. |
|
| 2115091 |
bark beetles |
Pityokteines spp. |
Female frons convex; male declivity more narrowly impressed with 2 or 3 pairs of very small teeth or granules; antennal club obliquely truncate, without sutures on posterior face |
| 2116009 |
bark beetles |
Trypodendron spp. |
Antennal club with subcorneous basal area strongly, rather narrowly procurved; protibia of female thickened and tuberculate on posterior face, flattened and finely tuberclate in male; male head deeply, broadly excavated, pronotum sub-quadrate; female frons convex, anterior margin of female pronotum rounded |
| 2116010 |
bark beetles |
Trypodendron spp. |
Antennal club with subcorneous basal area strongly, rather narrowly procurved; protibia of female thickened and tuberculate on posterior face, flattened and finely tuberclate in male; male head deeply, broadly excavated, pronotum sub-quadrate; female frons convex, anterior margin of female pronotum rounded |
| 2115056 |
ash bark beetles |
Hylesinus spp. |
Eye entire; vestiture scale-like; hosts Fraxinus |
| 2115099 |
bark beetles |
Pseudothysanoes spp. |
Elytral declivity more gradual, evenly convex, rounded behind; sutures of antennal club indicated only by marginal notches |
| 2115087 |
bark beetles |
Pityogenes spp. |
|
| 2116004 |
bark beetles |
Thysanoes spp. |
|
| 2116008 |
bark beetles |
Trypodendron spp. |
|
| 2115063 |
bark beetles |
Hylurgops spp. |
|
| 2115070 |
bark beetles |
Lymantor spp. |
|
| 2115096 |
bark beetles |
Polygraphus spp. |
Eye completely divided into two parts; antennal club solid , unmarked by sutures |
| 2115094 |
bark beetles |
Polygraphus spp. |
|
| 2115058 |
bark beetles |
Hylocurus spp. |
|
| 2115049 |
ambrosia beetle |
Euwallacea spp. |
Pronotum asperate only on anterior half, punctate on basal half; declivity more sloping, bearing small tubercles, strial and interstrial punctures larger |
| 2115045 |
bark beetles |
Dryoxylon spp. |
Pronotum 1.4 times longer than wide, anterior margin slightly notched, or emoarginate; elytral declivity moderately deeply, evenly sulcate |
| 2115044 |
bark beetles |
Dryocoetes spp. |
Pronotum 1.0-1.2 times longer than wide, anterior margin evenly rounded; elytral declivity evenly convex to slightly flattened |
| 2115035 |
bark beetles |
Crypturgus spp. |
Antennal funicle 2-segmented, club with 1 obscure suture at tip |
| 2115034 |
bark beetles |
Crypturgus spp. |
Antennal funicle 2-segmented, club with 1 obscure suture at tip |
| 2115032 |
ambrosia beetles |
Corthylus spp. |
Antennal funicle 1-segmented; posterior face of foretibiae smooth; elytra evennly rounded behind, without a sutural notch at apex |
| 2115038 |
bark and ambrosia beetles |
Dendroctonus spp. |
|
| 2115039 |
bark beetles |
Dendrosinus spp. |
Antennal club symmetrical, sutures transverse; posteriolateral area of pronotum abruptly grooved to accommodate elytral margins; elytra extended anteriorly over pronotum |
| 2115041 |
bark beetles |
Dolurgus spp. |
Antennal funicle 3-segmented, club with 3 sutures |
| 2115042 |
bark beetles |
Dryocoetes spp. |
Pronotum 1.0-1.2 times longer than wide, anterior margin evenly rounded; elytral declivity evenly convex to slightly flattened |
| 2115043 |
bark beetles |
Dryocoetes spp. |
Pronotum 1.0-1.2 times longer than wide, anterior margin evenly rounded; elytral declivity evenly convex to slightly flattened |
| 2115030 |
cone beetles |
Conophthorus spp. |
|
| 2115003 |
ambrosia beetle |
Xyleborus californicus |
ambrosia beetle native to Asia; 1st report in US: CA - 1944; East US - 1990s |
| 2114100 |
fig bark beetles |
Hypoborus spp. |
|
| 2115027 |
bark beetles |
Cnesinus spp. |
Sutures of antennal club straight; body and frons not as below |
| 2115029 |
bark beetles |
Coccotrypes spp. |
Frons convergently aciculate; elytral declivity evenly convex, extending over at least posterior 1/3 of elytra, granules absent; protibia armed on lateral margin by 2-4 socketed teeth; posterior face of antennal club with 2 sutures |
| 2115025 |
bark beetles |
Cnesinus spp. |
|
| 2115001 |
bark beetles |
Monarthrum spp. |
|
| 2115004 |
bark beetles |
Coccotrypes spp. |
Notice that Coccotrypes has a generally convex appearance from front to back and is hairy throughout the dorsal surface. |
| 2115005 |
bark beetles |
Coccotrypes spp. |
|
| 2115016 |
ambrosia beetles |
Ambrosiodmus spp. |
Pronotum asperate to base; declivity steep, bearing several granules or rather large denticles, strial and interstrial punctures small |
| 2115021 |
bark beetles |
Chramesus spp. |
Antennal club solid, unmarked by sutures; funicle attached to side of club; eye entire; hosts mostly hardwoods |
| 2115020 |
bark beetles |
Chramesus spp. |
|
| 2115022 |
bark beetles |
Chramesus spp. |
Antennal club solid, unmarked by sutures; funicle attached to side of club; eye entire; hosts mostly hardwoods |
| 2115018 |
bark beetles |
Cactopinus spp. |
|
| 2115019 |
bark beetles |
Carphoborus spp. |
Antennal funicle 5-segmented |
| 2115023 |
bark beetles |
Cnemonyx spp. |
|
| 2115088 |
bark beetles |
Pityogenes spp. |
Female frons deeply, rather narrowly excavated; male declivity with 2 or 3 pairs of enlarged teeth; antennal club compressed, 2 sutures visible on distal third of posterior face |
| 2115036 |
bark and ambrosia beetles |
Dendroctonus spp. |
|
| 2115060 |
bark beetles |
Hylurgopinus spp. |
|
| 2115047 |
bark beetles |
Dryoxylon spp. |
Pronotum 1.4 times longer than wide, anterior margin slightly notched, or emoarginate; elytral declivity moderately deeply, evenly sulcate |
| 2115033 |
bark beetles |
Cryphalus spp. |
|
| 2115028 |
bark beetles |
Coccotrypes spp. |
|
| 2114099 |
ambrosia beetles |
Gnathotrichus spp. |
|
| 2114093 |
bark beetle |
Alniphagus spp. |
|
| 2114092 |
bark beetle |
Alniphagus spp. |
Eye shallowly emarginate; vestiture hair-like; hosts Alnus |
| 2114098 |
ambrosia beetles |
Corthylus spp. |
|
| 2114094 |
ambrosia beetles |
Ambrosiodmus spp. |
|
| 2114095 |
bark beetles |
Chaetophloeus spp. |
|
| 2114096 |
bark beetles |
Chaetophloeus spp. |
|
| 2115046 |
bark beetles |
Dryoxylon spp. |
Pronotum 1.4 times longer than wide, anterior margin slightly notched, or emoarginate; elytral declivity moderately deeply, evenly sulcate |
| 2114091 |
bark beetle |
Alniphagus spp. |
|
| 2115084 |
bark beetles |
Phloeotribus spp. |
|
| 2134066 |
swede midge |
Contarinia nasturtii |
Damaged red cabbage. Note twisted leaves, swelling |
| 2134067 |
swede midge |
Contarinia nasturtii |
Damaged red cabbage followed by bacterial soft rot and collapse of plant |
| 2134073 |
swede midge |
Contarinia nasturtii |
Damaged green cabbage - twisted leaves, rotten center |
| 2134070 |
swede midge |
Contarinia nasturtii |
Damaged green cabbage |
| 1416003 |
Dalmatian toadflax |
Linaria dalmatica |
Possible hybrid toadflax plant (center)
between yellow toadflax (left) and
Dalmatian toadflax (right). |
| 1350084 |
blunt knapweed flower weevil |
Larinus obtusus |
|
