| 1593040 |
black pineleaf scale |
Dynaspidiotus californica |
Scale infestation on needles |
| 1593031 |
black pineleaf scale |
Dynaspidiotus californica |
Scale infestation on needles |
| 1593004 |
cooley spruce gall adelgid |
Adelges cooleyi |
Wool-covered adelgids on their alternate host, Douglas-fir. |
| 1593055 |
eastern spruce gall adelgid |
Adelges abietis |
Older galls |
| 1593006 |
spruce bud scale |
Physokermes piceae |
|
| 5468294 |
boxelder bug |
Boisea trivittata |
Adults and nymphs |
| 5468295 |
boxelder bug |
Boisea trivittata |
Adults and nymphs |
| 5468296 |
boxelder bug |
Boisea trivittata |
Adults and nymphs |
| 5468297 |
boxelder bug |
Boisea trivittata |
Adults and nymphs |
| 5468302 |
western conifer-seed bug |
Leptoglossus occidentalis |
|
| 5468303 |
western conifer-seed bug |
Leptoglossus occidentalis |
|
| 1398120 |
leaffooted pine seed bug |
Leptoglossus corculus |
|
| 1199023 |
spruce bud scale |
Physokermes piceae |
Mature scales on a branch |
| 1398084 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Distorted foliage due to an aphid infestation on green ash. Photo taken in Minnesota. |
| 1398085 |
ash plant bug |
Tropidosteptes amoenus |
Stippling damage on ash leaflet |
| 1388027 |
pine spittlebug |
Aphrophora cribrata |
Spittle |
| 1398066 |
woolly elm aphid |
Eriosoma americanum |
Leaf gall |
| 1484021 |
stink bugs |
|
stink bug nymph feeding on sawfly larvae |
| 5424249 |
fletcher scale |
Parthenolecanium fletcheri |
Scale bodies on white-cedar foliage, mid-summer |
| 5424250 |
fletcher scale |
Parthenolecanium fletcheri |
Scale bodies on foliage of northern white-cedar |
| 5203001 |
woolly apple aphid |
Eriosoma lanigerum |
Distorted leaf; photo taken in early June. |
| 5369988 |
balsam twig aphid |
Mindarus abietinus |
Damage, twisted foliage in early spring |
| 5369989 |
balsam twig aphid |
Mindarus abietinus |
Damage, twisted needles in early spring |
| 5369990 |
balsam twig aphid |
Mindarus abietinus |
Damage, twisted needles in early spring |
| 5203003 |
woolly elm aphid |
Eriosoma americanum |
American elm leaf distorted by woolly elm aphid; Photo taken in Ramsey Co., MN, June 2006 |
| 5203004 |
woolly elm aphid |
Eriosoma americanum |
American elm leaf distorted by woolly elm aphid; photo taken in ramsey Co., MN, June 2006 |
| 5203005 |
woolly elm aphid |
Eriosoma americanum |
Elm leaf distorted by woolly elm aphids; Photo taken in Ramsey Co., MN, June 2006 |
| 5203022 |
hackberry nipplegall maker |
Pachypsylla celtidismamma |
Galls caused by the hackberry nipple gall maker on the underside of a hackberry leaf; Photo taken in Ramsey Co., MN |
| 5203023 |
hackberry nipplegall maker |
Pachypsylla celtidismamma |
galls caused by the hackberry nipple gall maker on the underside of a hackberry leaf; Photo taken in Ramsey Co., MN |
| 5203024 |
hackberry nipplegall maker |
Pachypsylla celtidismamma |
Single gall |
| 1479024 |
Saratoga spittlebug |
Aphrophora saratogensis |
Branch mortality caused by adult Saratoga spittlebug feeding damage on young red pine. Similar damage can be caused by Sirococcus shoot blight. Photo taken on the Ottawa National Forest, Michigan. |
