| 1122011 |
elongate hemlock scale |
Fiorinia externa |
|
| 0717040 |
Zimmerman pine moth |
Dioryctria zimmermani |
|
| 0717031 |
pales weevil |
Hylobius pales |
|
| 0717032 |
pales weevil |
Hylobius pales |
Lone branch killed. This type of damage is called flagging. |
| 0717033 |
pales weevil |
Hylobius pales |
flagging |
| 0717035 |
spittlebugs or froghoppers |
|
Sooty mold which is often found in association with Spittle Bug feeding. Note the cast skin of a Spittle Bug on the end of the needle. |
| 0717027 |
Nantucket pine tip moth |
Rhyacionia frustrana |
Stunted branch with much damage. |
| 0717028 |
Nantucket pine tip moth |
Rhyacionia frustrana |
Area of Christmas Tree plantation with heavy damage. |
| 0717029 |
pales weevil |
Hylobius pales |
|
| 0717030 |
pales weevil |
Hylobius pales |
Close up of damage. |
| 0717019 |
pine spittlebug |
Aphrophora cribrata |
A sporatic pest on Christmas trees. Inside this Spittle mass is a small insect feeding with piercing, sucking mouthparts. This damage is usually inconsequential, but can result in twig death in some cases. The twig will usually turn light green, then yellow, and then turn brown and die. |
| 0717024 |
Nantucket pine tip moth |
Rhyacionia frustrana |
Close up of twig damage |
| 0717025 |
Nantucket pine tip moth |
Rhyacionia frustrana |
Bud damage. Note hole down the center of the bud. |
| 0717026 |
Nantucket pine tip moth |
Rhyacionia frustrana |
Note resinous bleeding at base of bud. |
| 0717018 |
Japanese beetle |
Popillia japonica |
A minor pest of Christmas trees, which chew small holes in tender young twigs. This feeding leaves a wound where small amounts of resin collect. The resin dries, leaving small white spots on the bark. |
| 0717023 |
Nantucket pine tip moth |
Rhyacionia frustrana |
Note the rounded, stunted growth. |
| 0717008 |
cooley spruce gall adelgid |
Adelges cooleyi |
Heavily galled trees become disfigured and have reduced value as Christmas trees. |
| 0717012 |
bagworm |
Thyridopteryx ephemeraeformis |
Note the defoliation on top of this fir tree. |
| 0717003 |
pine bark adelgid |
Pineus strobi |
Excess bud formation leading to proliferation of shoots at the top of the tree. Note also the lady beetle feeding on the adelgids. |
| 0717007 |
cooley spruce gall adelgid |
Adelges cooleyi |
This is as the gall would appear in early summer or late fall. It would appear green earlier in the summer. |
| 1122009 |
elongate hemlock scale |
Fiorinia externa |
|
| 1122010 |
elongate hemlock scale |
Fiorinia externa |
|
| 5427675 |
pine needle scale |
Chionaspis pinifoliae |
|
| 5427676 |
pine sawyer beetle |
Monochamus carolinensis |
|
| 5427677 |
southern pine sawyer |
Monochamus titillator |
|
| 5427679 |
southern pine sawyer |
Monochamus titillator |
|
| 5427668 |
hemlock woolly adelgid |
Adelges tsugae |
|
| 0718007 |
pales weevil |
Hylobius pales |
|
| 0718008 |
pales weevil |
Hylobius pales |
|
| 0717016 |
bagworm |
Thyridopteryx ephemeraeformis |
Overwintering bag of the bagworm cut open. The overwintering stage is an egg mass inside old bags. This offers an excellent opportunity for control as these bags filled with eggs can be picked off and destroyed. |
| 0717006 |
cooley spruce gall adelgid |
Adelges cooleyi |
Spruce trees growing in close association with Douglas-fir often have the Cooley Spruce Gall Adelgid. In this slide, the Douglas-fir is on the left; Norway spruce is on the right. |
| 5382300 |
bagworm |
Thyridopteryx ephemeraeformis |
Gall caused but constriction around the silk attachment point of the bagworm |
| 5382321 |
pales weevil |
Hylobius pales |
|
| 5382322 |
pales weevil |
Hylobius pales |
|
| 5382323 |
pales weevil |
Hylobius pales |
Pales weevils on stump |
| 5382332 |
spruce bud scale |
Physokermes piceae |
|
| 0717044 |
root aphid |
Prociphilus americanus |
|
| 0717045 |
root aphid |
Prociphilus americanus |
|
| 0718044 |
cooley spruce gall adelgid |
Adelges cooleyi |
|
| 0718024 |
pitch mass borer |
Synanthedon pini |
|
| 0718025 |
pitch mass borer |
Synanthedon pini |
|
| 0717013 |
bagworm |
Thyridopteryx ephemeraeformis |
Close up of the bagworm, full-grown larval stage. In late summer, it permanently attaches itself to the host tree on a small branch. |
| 1122017 |
striped pine scale |
Toumeyella pini |
Heavy population and sooty mold |