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Forest Insects Articles

A collection of articles published in The NY Forest Owner, which provides an introductory identification and role of forest insects.

Mary Beth Malmsheimer; EditorEastern tent caterpillar


By Douglas C. Allen

Thanks to the effort and imagination of Dick Fox, I am pleased to have this collection of papers made available to forest landowners and other people with a broad interest in forest health.

These articles cover a range of topics, some general and others fairly specific. My purpose has been to touch on items that I sense are of current interest, to use the FOREST OWNER column as an opportunity for alerting New York forest owners of potential problems and, at times, to do nothing more than try and make a forest owner's walk through the woods a bit more interesting. In regard to the latter, I think it important for forest owners to appreciate that insects play many beneficial roles in forest communities and to realize that all insects which feed on trees are not necessarily "pests."

In order to be a good steward one must understand the biological components of a forest. Insects are but one of the diverse groups of organisms that interact to determine the character of a woodlot. Unfortunately, on occasion they compete with humans for resources of mutual interest. This is the point at which they are no longer mere curiosities but become pests. The best control measure is prevention. If we understand an insect and the manner in which it interacts with the forest well enough, we often are able to adjust our forest management activities accordingly. I hope these articles will stimulate readers to learn more about the entomological aspects of forest health.


By Richard J. Fox (past editor)

This project was commissioned by Michael Birmingham, Department of Environmental Conservation, in cooperation with Douglas Allen, Professor of Forest Entomology at the State University of New York, College of Environmental Science and Forestry.

The digitized printing of the photographs (primarily by Professor Allen) was accomplished using computer facilities at the NYS DEC offices in Cortland (HP ScanJet 2C; HP Laserjet 5P; 600dpi). The editor is grateful for the technical help of the Cortland Office professionals and their tolerance.

A special thanks is due Stephen Davison, Senior Forester and David Forness, Senior Forester of the NYS DEC Cortland Office, for a final proof of the reprints and helpful suggestions.

The 1997 Supplement is provided upon the request of Michael Birmingham and courtesy of Frank Dunstan, Director of the Division of Lands and Forests.

Forest Protection - An Ingredient For Good Stewardship by Douglas C. Allen - (pdf 12 kb)
Sugar Maple Borer by Douglas C. Allen - (pdf 82 kb)
Biological Diversity by Douglas C. Allen - (pdf 15 kb)
Ants and Termites by Carolyn Class - (pdf 8 kb)
Introduced Insects Often Pose Biological & Economic Risks by Douglas C. Allen - (pdf 45 kb)
Common Tent Caterpillars by Douglas C. Allen - (pdf 100 kb)
White Pine Weevil by Douglas C. Allen - (pdf 70 kb)
Pear Thrips - The "Maple Malady" by Janet Knodel, Mary Bartley, Sana Gardescu, Lawrence Abrahamson, and Douglas C. Allen - (pdf 50 kb)
Hemlock Woolly Adelgid by Douglas C. Allen - (pdf 50 kb)
Pine Shoot Beetle Management by David Taber - (pdf 30 kb)
Pine Feeding Sawflies by Douglas C. Allen - (pdf 82 kb)
Fall Webworm - A Late Bloomer by Douglas C. Allen - (pdf 87 kb)
Be On The Lookout For Bruce Spanworm by Douglas C. Allen - (pdf 55 kb)
Cherry Scallop Shell Moth by Douglas C. Allen - (pdf 86 kb)
Forest Health - An Elusive Concept by Douglas C. Allen - (pdf 8 kb)
The Pine Bark Adelgid by Douglas C. Allen - (pdf 70 kb)
The Bark Beetles by Douglas C. Allen - (pdf 88 kb)
Sawyer Beetles by Douglas C. Allen - (pdf 223 kb)
Fall Cankerworm by Douglas C. Allen - (pdf 175 kb)
North American Maple Project by Douglas C. Allen - (pdf 139 kb)
1994 - The Year Of The Defoliator by Douglas C. Allen - (pdf 10 kb)
The Oak Twig Pruner by Douglas C. Allen - (pdf 138 kb)
Gall Making Insects by Douglas C. Allen - (pdf 183 kb)
Ambrosia Beetles by Douglas C. Allen - (pdf 111 kb)
Return Of Larch Casebearer by Douglas C. Allen - (53 kb file)
The Soft Scales by Douglas C. Allen - (pdf 73 kb)
Adirondack Windstorms and Insects by Douglas C. Allen - (pdf 201 kb)
Using Forest Service Inventory Data to Assess the Health of New York's Forest by Douglas C. Allen - (pdf 18 kb)
Elm Spanworm, A Frequent Visitor by Douglas C. Allen - (pdf 95 kb)
The Cicadas by Douglas C. Allen - (pdf 64 kb)
Seed Bugs and Lady Beetles by Douglas C. Allen - (pdf 37 kb)
Scale Insects With A Hard Covering by Douglas C. Allen - (pdf 26 kb)
The Asian Longhorned Beetle by Douglas C. Allen - (pdf 69 kb)
Pheromones by Douglas C. Allen - (pdf 40 kb)
The Twolined Chestnut Borer by Douglas C. Allen - (pdf 57 kb)
Gypsy Moth - Down And Out? by Douglas C. Allen - (pdf 95 kb)
Maple Leaf Cutter by Douglas C. Allen - (pdf 65 kb)
Pine False Webworm by Douglas C. Allen - (pdf 58 kb)
Locust Borer may be in Your Backyard by Douglas C. Allen - (pdf 99 kb)
Mourningcloak Butterfly by Douglas C. Allen - (pdf 52 kb)
The Cryptic World of Leafminers by Douglas C. Allen - (pdf 49 kb)
Peach Bark Beetle and Black Cherry by Douglas C. Allen - (pdf 341 kb)
Insect-produced Silk by Douglas C. Allen - (pdf 242 kb)
Moths That Affect Pine Shoots by Douglas C. Allen - (pdf 385 kb)
Defoliation by Oystershell Scale by Douglas C. Allen - (pdf 152 kb)
Identifying Trees at Risk from Ice and Wind by Douglas C. Allen - (pdf 287 kb)
Wood-destroying Insects: the Powder Post Beetles by Douglas C. Allen - (pdf 278 kb)
Native Insect Pests of Hemlock by Douglas C. Allen - (pdf 305 kb)

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