| Image |
Descriptor |
Description |
Photographer |
| 1455156 |
Adult(s) |
|
Whitney Cranshaw |
| 2252049 |
Adult(s) |
egg mass and adult |
Scott Tunnock |
| 2252050 |
Adult(s) |
|
Scott Tunnock |
| 2184048 |
Adult(s) |
|
Darren Blackford |
| 5020013 |
Adult(s) |
|
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
| 5020016 |
Adult(s) |
|
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
| 3066023 |
Biological Control |
with Diptera parasite |
James Solomon |
| 1199026 |
Biological Control |
Inverted V-shaped forest tent caterpillars infected with Polyhedrosis virus |
Steven Katovich |
| 1199027 |
Biological Control |
Entomophaga (fungal) infection on the larger caterpillar in the center of the photograph. |
Steven Katovich |
| 1199028 |
Biological Control |
Polyhedrosis virus infected forest tent caterpillar |
Steven Katovich |
| 1398239 |
Biological Control |
Late instar larvae on the bark of a tree with virus killed caterpillars (hanging in an inverted V-position) present. |
Steven Katovich |
| 1398240 |
Biological Control |
Two virus killed late-instar caterpillars (inverted V-shape)along with two healthy catrpillars. |
Steven Katovich |
| 1398241 |
Biological Control |
Caterpillar in the center infected with Entomophaga, a fungal pathogen |
Steven Katovich |
| 3717075 |
Cocoon(s) |
and adult |
Lacy L. Hyche |
| 5020012 |
Cocoon(s) |
|
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
| 1455157 |
Cocoon(s) |
|
Whitney Cranshaw |
| 1455158 |
Cocoon(s) |
|
Whitney Cranshaw |
| 9009067 |
Cocoon(s) |
Cocoon of forest tent caterpillar |
Herbert A. "Joe" Pase III |
| 9009068 |
Cocoon(s) |
Cocoon of forest tent caterpillar |
Herbert A. "Joe" Pase III |
| 9009069 |
Cocoon(s) |
Cocoon of forest tent caterpillar that had a parasite emerge from it. |
Herbert A. "Joe" Pase III |
| 1512062 |
Damage |
Forest tent caterpillar - damage up through canopy |
USDA Forest Service - Region 8 Archive |
| 4212001 |
Damage |
defoliation |
Minnesota Department of Natural Resources Archive |
| 0907039 |
Damage |
defoliation tends to be fairly complete with all except major veins and petioles consumed; maple being stripped
note larva |
Ronald S. Kelley |
| 0758231 |
Diagram or Graphic |
Map made of defoliation by forest tent caterpillar relative to experimental spray blocks, Mobile River Basin, AL. |
William M. Ciesla |
| 0907037 |
Egg(s) |
egg masses have square edges and completely encircled twigs on host branch;
eggs hatching |
E. Bradford Walker |
| 0014159 |
Egg(s) |
|
Gerald J. Lenhard |
| 1150087 |
Egg(s) |
Egg masses typically encircle a small branch and the larvae hatch in the early spring as the leaves are unfolding from their buds. |
Herbert A. "Joe" Pase III |
| 1398237 |
Egg(s) |
Egg mass |
Steven Katovich |
| 1394034 |
Egg(s) |
|
James B. Hanson |
| 1394035 |
Egg(s) |
new and old egg masses |
James B. Hanson |
| 3066026 |
Egg(s) |
egg masses with hatch occurring |
James Solomon |
| 3066029 |
Egg(s) |
egg mass on twig, unhatched |
James Solomon |
| 4178072 |
Egg(s) |
masses encircling twig |
John Moser |
| 5389770 |
Egg(s) |
old egg mass on top; new on bottom |
Ronald S. Kelley |
| 3717076 |
Egg(s) |
egg mass and newly hatched larvae |
Lacy L. Hyche |
| 1510017 |
Egg(s) |
Forest tent caterpillar egg masses |
USDA Forest Service - Region 8 Archive |
| 1523064 |
Egg(s) |
larvae beginning to emerge from eggs |
Daniel Herms |
| 9009065 |
Egg(s) |
|
Herbert A. "Joe" Pase III |
| 9009066 |
Feature(s) |
Cast larval skins of forest tent caterpillar |
Herbert A. "Joe" Pase III |
| 1398244 |
Feature(s) |
Pupal case tied into foliage, northern MN. |
Steven Katovich |
| 4212007 |
Feature(s) |
cast skins |
Minnesota Department of Natural Resources Archive |
| 1398272 |
Feature(s) |
Molted skins of early instar forest tent caterpillars |
Steven Katovich |
| 1150088 |
Infestation |
The larvae feed on sweetgum, tupelo gum, black gum, and various species of oak. |
Herbert A. "Joe" Pase III |
| 1150012 |
Infestation |
aerial view of damage |
Andrew J. Boone |
| 1150084 |
Infestation |
The forest tent caterpillar occurs throughout the eastern United States and is a defoliator of a wide variety of hardwood trees. This is the tent caterpillar that does not make a tent! There is one generation per year and the insect overwinters in the egg stage. An unusual outbreak of the forest tent caterpillar occurred in East Texas in the spring of 2002 where some 125,000 acres of bottomland mixed hardwood forest were moderately defoliated. Because they do not defoliate all the trees in mixed deciduous stands, light defoliation may be difficult to see from the air. Moderate defoliation shows up from the air as a gray-green color. |
Herbert A. "Joe" Pase III |
| 1394009 |
Infestation |
defoliation |
James B. Hanson |
| 0014248 |
Infestation |
defoliation |
Gerald J. Lenhard |
| 0758114 |
Infestation |
Aerial view of defoliation of water tupelo. |
William M. Ciesla |
| 0758115 |
Infestation |
Aerial view of defoliation of water tupelo |
William M. Ciesla |
| 0758116 |
Infestation |
Aerial view of defoliation of water tupelo, Note - greenstrips are areas of mixed hardwood forest, a less favored host of this insect. |
William M. Ciesla |
| 0758117 |
Infestation |
Aerial view of defoliation |
William M. Ciesla |
| 0758118 |
Infestation |
Aerial view of defoliation. |
William M. Ciesla |
| 0758226 |
Infestation |
Aerial view of heavy defoliation |
William M. Ciesla |
| 0758228 |
Infestation |
Color infrared aerial photo of forest tent caterpillar defoliation |
William M. Ciesla |
| 0758229 |
Infestation |
Color infrared aerial photo of forest tent caterpillar defoliation |
William M. Ciesla |
| 4212002 |
Infestation |
severe defoliation |
Minnesota Department of Natural Resources Archive |
| 4061085 |
Infestation |
defoliation at Chappewa National Forest, Minnesota, May 1952 |
Arnold T. Drooz |
| 4060048 |
Infestation |
defoliation in Minnesota |
Arnold T. Drooz |
| 3066031 |
Infestation |
extensive defoliation - Mobile, Alabama |
R.C. Morris |
| 3046050 |
Infestation |
aerial view of defoliation in Alabama bottomland |
R.C. Morris |
| 3047006 |
Infestation |
defoliation by tree |
James Solomon |
| 3057039 |
Infestation |
defoliation [figure 6B in USDA Forest Service Oak Pests book] |
James Solomon |
| 1398245 |
Infestation |
|
Steven Katovich |
| 1398246 |
Infestation |
Aspen defoliation along a lakeshore, northern MN. |
Steven Katovich |
| 1475042 |
Infestation |
Mass of larvae on trunk. Lighter colored caterpillars have recently molted. |
Whitney Cranshaw |
| 1510012 |
Infestation |
Forest tent caterpillar defoliation |
USDA Forest Service - Region 8 Archive |
| 1510013 |
Infestation |
Forest tent caterpillar defoliation |
USDA Forest Service - Region 8 Archive |
| 1510014 |
Infestation |
Forest tent caterpillar defoliation |
USDA Forest Service - Region 8 Archive |
| 2253050 |
Infestation |
defoliation of small trees in foreground |
Jerald E. Dewey |
| 2254042 |
Larva(e) |
|
Kenneth E. Gibson |
| 2733020 |
Larva(e) |
Note the white key-hole shaped spots down the back. |
USDA Forest Service Archive |
| 3046041 |
Larva(e) |
group of larvae, webbing and frass |
R.C. Morris |
| 2252051 |
Larva(e) |
|
Jerald E. Dewey |
| 1523067 |
Larva(e) |
|
Daniel Herms |
| 1791009 |
Larva(e) |
|
Lance S. Risley |
| 2154066 |
Larva(e) |
4th and 5th instar |
Barry Cooke |
| 2154067 |
Larva(e) |
molting from 4th to 5th |
Barry Cooke |
| 1512058 |
Larva(e) |
Forest tent caterpillar - Keyhole marking |
USDA Forest Service - Region 8 Archive |
| 1512059 |
Larva(e) |
Forest tent caterpillar on tree bole |
USDA Forest Service - Region 8 Archive |
| 1523019 |
Larva(e) |
|
Daniel Herms |
| 1510015 |
Larva(e) |
Forest tent caterpillar larvae |
USDA Forest Service - Region 8 Archive |
| 1510016 |
Larva(e) |
Forest tent caterpillar late instar larvae |
USDA Forest Service - Region 8 Archive |
| 1398247 |
Larva(e) |
Late-instar caterpillar |
Steven Katovich |
| 1398248 |
Larva(e) |
Two late instar caterpillars. Kennebac Co., MN 2001 |
Steven Katovich |
| 1457003 |
Larva(e) |
NPV Virus killed |
Steven Katovich |
| 1457012 |
Larva(e) |
|
Steven Katovich |
| 1457032 |
Larva(e) |
Group of late-instar larvae on the main stem of an aspen tree, northern Wisconsin, summer 2003. |
Steven Katovich |
| 1457033 |
Larva(e) |
|
Steven Katovich |
| 1468206 |
Larva(e) |
|
USDA Forest Service - Ogden Archive |
| 1470093 |
Larva(e) |
1976; Preparing to pupate |
A. Steven Munson |
| 3066024 |
Larva(e) |
|
James Solomon |
| 3066025 |
Larva(e) |
massed on trunk |
James Solomon |
| 2184049 |
Larva(e) |
|
Darren Blackford |
| 3225048 |
Larva(e) |
|
Ronald F. Billings |
| 3226061 |
Larva(e) |
|
Texas Forest Service Archive |
| 3226062 |
Larva(e) |
|
Ronald F. Billings |
| 3717074 |
Larva(e) |
|
Lacy L. Hyche |
| 4060057 |
Larva(e) |
|
Arnold T. Drooz |
| 1398271 |
Larva(e) |
Various caterpillar instars and molted skins on the stem of a young aspen tree, northern MN |
Steven Katovich |
| 5020009 |
Larva(e) |
|
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
| 5389771 |
Larva(e) |
larvae on sugar maple leaf |
Ronald S. Kelley |
| 5369985 |
Larva(e) |
Cluster of larvae on the stem of a crab apple tree, 2007 |
Steven Katovich |
| 5382544 |
Larva(e) |
|
Johnny N. Dell |
| 5389769 |
Larva(e) |
larvae defoliating sugar maple leaf |
Ronald S. Kelley |
| 0795042 |
Larva(e) |
|
Ronald F. Billings |
| 0907038 |
Larva(e) |
keyhole-shaped white spots on the back |
E. Bradford Walker |
| 0907040 |
Larva(e) |
cluster in groups, do not form tents |
Ronald S. Kelley |
| 1301039 |
Larva(e) |
|
Joseph O'Brien |
| 1310004 |
Larva(e) |
With dime |
Jim Occi |
| 1394006 |
Larva(e) |
|
James B. Hanson |
| 1394007 |
Larva(e) |
|
James B. Hanson |
| 1394008 |
Larva(e) |
|
James B. Hanson |
| 0758227 |
Larva(e) |
Mature larvae on stem of a water tupelo |
William M. Ciesla |
| 0014160 |
Larva(e) |
newly emerged |
Gerald J. Lenhard |
| 0007062 |
Larva(e) |
|
Gerald J. Lenhard |
| 0010112 |
Larva(e) |
Larval mass on sunny side of tree in early afternoon |
Andrew J. Boone |
| 0014158 |
Larva(e) |
|
Gerald J. Lenhard |
| 0014218 |
Larva(e) |
|
Gerald J. Lenhard |
| 0014230 |
Larva(e) |
|
Gerald J. Lenhard |
| 1394010 |
Larva(e) |
|
James B. Hanson |
| 1394011 |
Larva(e) |
|
James B. Hanson |
| 1394012 |
Larva(e) |
|
James B. Hanson |
| 1394013 |
Larva(e) |
|
James B. Hanson |
| 1150085 |
Larva(e) |
As the larvae grow, they molt as a group and a concentration of cast larval skins can often be found. |
Herbert A. "Joe" Pase III |
| 1150086 |
Larva(e) |
The larvae don’t construct a characteristic tent like the eastern tent caterpillar. Instead, they construct silk webbing that lies flat on the surface of the tree’s trunk and branches. The colorful larvae are easily identified by the "keyhole" or "footprint" pattern on their dorsal surface. |
Herbert A. "Joe" Pase III |
| 1150089 |
Larva(e) |
The larvae don’t construct a characteristic tent like the eastern tent caterpillar. Instead, they construct silk webbing that lies flat on the surface of the tree’s trunk and branches. The colorful larvae are easily identified by the "keyhole" or "footprint" pattern on their dorsal surface |
Herbert A. "Joe" Pase III |
| 1398036 |
Larva(e) |
Late instar larval mass on the stem of an aspen tree. Northern Minnesota. |
Steven Katovich |
| 1398242 |
Larva(e) |
Multiple late instar larvae feeding on an ash leaf. |
Steven Katovich |
| 1398273 |
Larva(e) |
Late instar larvae massed on a young aspen tree. northwest Wisconsin, 2001. |
Steven Katovich |
| 1455149 |
Larva(e) |
Mass of larvae on trunk |
Whitney Cranshaw |
| 1455150 |
Larva(e) |
Mass of larvae on trunk |
Whitney Cranshaw |
| 1455151 |
Larva(e) |
Mass of larvae on trunk |
Whitney Cranshaw |
| 1455152 |
Larva(e) |
Mass of larvae on trunk |
Whitney Cranshaw |
| 1455153 |
Larva(e) |
|
Whitney Cranshaw |
| 1455154 |
Larva(e) |
|
Whitney Cranshaw |
| 1455155 |
Larva(e) |
|
Whitney Cranshaw |
| 2184050 |
Life Cycle |
|
Darren Blackford |
| 3066022 |
Life Cycle |
newly hatched larva & egg masses |
James Solomon |
| 2154068 |
Life Cycle |
1st instar larvae dead on hatched eggs |
Barry Cooke |
| 2184047 |
Life Cycle |
|
Darren Blackford |
| 2252052 |
Pupa(e) |
|
Jerald E. Dewey |
| 3046042 |
Pupa(e) |
group on side of tree |
R.C. Morris |
| 1398264 |
Pupa(e) |
Pupal cases attached to a cabin in northern MN |
Steven Katovich |
| 3066030 |
Pupa(e) |
cocoons on palmetto in understory |
James Solomon |
| 1398243 |
Pupa(e) |
Pupal case wrapped in an understory fern leaf. |
Steven Katovich |
| 1394036 |
Pupa(e) |
diseased |
James B. Hanson |
| 1394037 |
Pupa(e) |
diseased |
James B. Hanson |
| 1394014 |
Pupa(e) |
|
James B. Hanson |
| 1394015 |
Pupa(e) |
|
James B. Hanson |
| 1394017 |
Pupa(e) |
|
James B. Hanson |
| 1394033 |
Pupa(e) |
diseased |
James B. Hanson |
| 0014210 |
Trap(s) |
Sticky trap at Pearl River |
Gerald J. Lenhard |
| 0014211 |
Trap(s) |
Window pane trap at Pearl River |
Gerald J. Lenhard |
| 0014212 |
Trap(s) |
Window pane trap at Pearl River |
Gerald J. Lenhard |
| 0014215 |
Trap(s) |
Trapping with Burlap bands. |
Gerald J. Lenhard |
