Most Damaging Forest Insects

There are over 30 tree insects that contribute to health decline and death of most of the trees in the United States. This list of tree insects cause most tree health problems and death. These insects are the cause of significant replacement expense of yard trees and the commercial expense of future losses of forest products.

The Destructive Emerald Ash Borer, A Tree Borer and Major Forest Pest

How to Manage and ID Bagworm

Forest insect identification and management site from your About Forestry Guide.

Bark Beetle is a major forest insect pest.

Bark Beetle is a major forest insect pest.

Five insects that kill or damage coniferous trees in great numbers.

I have compiled the most common hardwood tree insects you might find in yard and forest. You can do a lot to prevent and control hardwood insect, which some mistake as a disease, including oak leaf gall. Here is how.

Fall webworm is a caterpillar that builds obnoxious webs on trees you value. The web worm will not kill a tree but can reduce nut and fruit production. Here are ways to control the insect.

I have compiled the most common tree insects you might find in yard and forest. You can do a lot to prevent and control insects including forest tent caterpillar. Here is how.

I have compiled the most common tree insects you might find in yard and forest. You can do a lot to prevent and control insects including pine bark beetle. Here is how.

I have compiled the most common tree insects you might find in yard and forest. You can do a lot to prevent and control insects including pine bark beetle. Here is how.

I have compiled the most common tree insects you might find in yard and forest. You can do a lot to prevent and control insects including Asian longhorned beetle. Here is how.

I have compiled the most common tree insects you might find in yard and forest. You can do a lot to prevent and control insects including Asian longhorned beetle. Here is how.

I have compiled the most common tree insects you might find in yard and forest. You can do a lot to prevent and control insects including balsam wooly aphid. Here is how.

The eastern and Carolina hemlock is now under attack and in the early stages of being decimated by the hemlock wooly adelgid (HWA) or Adelges tsugae. Adelgids are small, soft bodied aphids that feed exclusively on coniferous plants

Forest insect identification and management site from your About Forestry Guide...

White-spotted Sawyer - Attacks white and jack pines. USDA Forest Service data.

White Pine Weevil - Attacks white and jack pines. USDA Forest Service data.

Western Spruce Budworm - Attacks spruce and fir. USDA Forest Service data.

Walnut Caterpillar - Attacks black walnut. USDA Forest Service data.

Variable Oakleaf Caterpillar - Attacks oaks. USDA Forest Service data.

Twolined Chestnut Borer - Attacks oaks. USDA Forest Service data.

Spruce Budworm - Attacks spruce and fir. USDA Forest Service data.

Southwestern Pine Tip Moth - Attacks western pines. USDA Forest Service data.

Southern Pine Beetle - Attacks southern pines. USDA Forest Service data.

Saratoga Spittlebug - Attacks northeastern pines. USDA Forest Service data.

Redheaded Pine Sawfly - Attacks hard pines. USDA Forest Service data.

Red Oak Borer - Attacks Oaks. USDA Forest Service data.

Pine Tortoise Scale - Attacks scotch and jack pines. USDA Forest Service data.

Pales Weevil - Attacks most conifers. USDA Forest Service data.

Nantucket Pine Tip Moth - Attacks eastern pines. USDA Forest Service data.

Mountain Pine Beetle - Attacks western pines. USDA Forest Service data.

The Scotsman suggests that killing ants is punishable by law in Germany. According to the UK report, German foresters value ants for eating insects which attack trees

Locust Borer - Attacks black locust. USDA Forest Service data.

Larch Casebearer - Attacks tamarack, Western Larch. USDA Forest Service data.

Ips Bark Beetles - Attacks southern pines. USDA Forest Service data.

Gypsy Moth - Attacks northeast hardwoods. USDA Forest Service data.

Forest Tent Caterpillar - Attacks hardwoods. USDA Forest Service data.

Fall Webworm - Attacks hardwoods. USDA Forest Service data.

Asian Longhorned Beetle - Attacks mostly maples. USDA Forest Service data.

European Pine Shoot Moth - Attacks pines. USDA Forest Service data.

Eastern Pineshoot Borer - Attacks pines. USDA Forest Service data.

Douglas-fir Tussock Moth - Attacks true firs and doug-fir. USDA Forest Service data.

Bronze Birch Borer - Attacks birch. USDA Forest Service data.

Balsam Wooly Adelgid - Attacks northern region conifers. Data from UGA's Bugwood.org

Asian Longhorned Beetle - Attacks mostly maples. USDA Forest Service data.

The Destructive Emerald Ash Borer, A Tree Borer and Major Forest Pest