| 5445262 |
mealy plum aphid |
Hyalopterus pruni |
|
| 5445325 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 5445324 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 5445322 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 1243078 |
pin oak kermes |
Allokermes galliformis |
Eggs at hatch on Pin oak. |
| 1325017 |
pin oak kermes |
Allokermes galliformis |
mature females on pin oak |
| 1325018 |
pin oak kermes |
Allokermes galliformis |
nymphs around bark scale on pin oak |
| 5445211 |
boxelder psyllid |
Cacopsylla negundinis |
|
| 1326120 |
pin oak kermes |
Allokermes galliformis |
Dead twigs typical of injury |
| 5445354 |
ash plant bug |
Tropidosteptes amoenus |
|
| 5445320 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Leafcurling of new foliage of green ash |
| 5445321 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 5445374 |
poplar vagabond aphid |
Mordvilkoja vagabunda |
Large pseudo-gall produced on aspen terminal |
| 1243079 |
scurfy scale |
Chionaspis furfura |
Old scales and crawlers on Aspen. |
| 1326067 |
woolly beech aphid |
Phyllaphis fagi |
Colony on beech leaf |
| 1325009 |
sycamore lace bug |
Corythucha ciliata |
|
| 1326114 |
European elm scale |
Eriococcus spuria |
Mature females |
| 1326003 |
kermes scale |
Allokermes gillettei |
Crawlers exposed from female |
| 1326111 |
European elm scale |
Eriococcus spuria |
Mature females and crawlers |
| 1326040 |
leafcurl plum aphid |
Brachycaudus helichrysi |
Tight leafcurling typical of spring infestation |
| 1326001 |
kermes scale |
Allokermes gillettei |
Mature females |
| 1246060 |
honeylocust plant bug |
Diaphnocoris chlorionis |
|
| 1326109 |
European elm scale |
Eriococcus spuria |
colony of mature females at end of egg hatch (mid-July) |
| 1326116 |
European elm scale |
Eriococcus spuria |
Nymphs along leaf veins and honeydew droplet |
| 1326068 |
honeylocust leafhopper |
Macropsis fumipennis |
|
| 1455197 |
grape mealybug |
Pseudococcus maritimus |
|
| 1326011 |
treehopper |
Micrutalus calva |
|
| 1326110 |
European elm scale |
Eriococcus spuria |
Nymphs on foliage |
| 1326069 |
golden oak scale |
Asterodiaspis variolosa |
Colony on twig |
| 1455115 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Typical leaf curling damage |
| 1246058 |
honeylocust plant bug |
Diaphnocoris chlorionis |
|
| 1326115 |
European elm scale |
Eriococcus spuria |
Nymphs along leaf veins |
| 1326112 |
European elm scale |
Eriococcus spuria |
Scale flagging typical of chronic infestation |
| 1326108 |
European elm scale |
Eriococcus spuria |
colony of mature females at egg hatch (mid-June) |
| 1246057 |
honeylocust plant bug |
Diaphnocoris chlorionis |
shown with nymph on stem |
| 1326002 |
kermes scale |
Allokermes gillettei |
Crawlers exposed from female |
| 1326096 |
oak spittlebugs |
Clastoptera spp. |
Spittle mass and nymphs |
| 1326095 |
oak spittlebugs |
Clastoptera spp. |
Spittle mass and nymphs |
| 1325052 |
honeylocust plant bug |
Diaphnocoris chlorionis |
Leaf twisting and chlorosis associated with feeding injuries |
| 1476088 |
poplar twig gall aphid |
Pemphigus populiramulorum |
gall produced on cottonwood twig |
| 1476090 |
lettuce root aphid |
Pemphigus bursarius |
gall produced on popular petiole |
| 1476100 |
oak phylloxerids |
Phylloxera spp. |
large colony on aspen |
| 5382067 |
hackberry nipplegall maker |
Pachypsylla celtidismamma |
Psyllid galls that have been decapped by fox squirrels (Sciuris niger), that eat the mature nymphs in late summer. After feeding, the leaves are cut and drop to the ground.
|
| 5382068 |
hackberry nipplegall maker |
Pachypsylla celtidismamma |
Fallen leaves cut by fox squirrels (Sciuris niger) after they have decapped galls of the hackberry nipplegall maker and eaten the mature nymphs.
|
| 5382066 |
hackberry nipplegall maker |
Pachypsylla celtidismamma |
Psyllid galls that have been decapped by fox squirrels (Sciuris niger), that eat the mature nymphs in late summer. After feeding, the leaves are cut and drop to the ground.
|
| 5305013 |
predatory stink bug |
Podisus placidus |
Mating pair. Female is feeding on larva of cottonwood leaf beetle |
| 5303021 |
European elm scale |
Gossyparia spuria |
Mature adult females packed into bark cracks |
| 5304003 |
European elm scale |
Gossyparia spuria |
Sooty mold characteristic of chronic infestation by European elm scale in sites with little rainfall. |
| 5304006 |
aphid |
Tetraneura spp. |
|
| 5304007 |
aphid |
Tetraneura spp. |
|
| 5304008 |
aphid |
Tetraneura spp. |
|
| 5209062 |
woolly apple aphid |
Eriosoma lanigerum |
Leaf curling injury on a hybrid elm |
| 5210014 |
poplar vagabond aphid |
Mordvilkoja vagabunda |
Dried 'pseudo-gall' produced in twigs of host plant. |
| 5083042 |
lace bugs |
Teleonemia spp. |
and stippling injury on upper leaf surface. Photo taken September 4, 2006 |
| 5083073 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
twig curling produced by infestation of leafcurl ash aphid |
| 5083074 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Clumped leaves at terminals produced by earlier aphid injury are visible during leaf drop in fall. |
| 5084027 |
little black and green willow aphid |
Chaitophorus viminalis |
|
| 5084038 |
reddish brown poplar aphid |
Pterocomma populifoliae |
small colony on poplar twig |
| 5084049 |
reddish brown poplar aphid |
Pterocomma populifoliae |
mother giving birth |
| 5084050 |
hackberry blistergall psyllid |
Pachypsylla celtidisvesiculum |
near developing galls of hackberry nipple maker psyllid |
| 5083039 |
lace bugs |
Teleonemia spp. |
with nymph and tar spot droppings. Photo taken September 4, 2006 |
| 5083040 |
lace bugs |
Teleonemia spp. |
photo taken September 4, 2006 |
| 5024020 |
willow scale |
Diaspidiotus gigas |
mixed life stages on aspen branch |
| 2200069 |
honeylocust leafhopper |
Macropsis fumipennis |
Adult on honeylocust twig. May 27, 2006 |
