Major Tree Insect Pests
Review the complete listing of this FIDL series.
Taken from the Forest Insect and Disease Leaflet Series, USDA Forest Service.
First, find out how prepared you are for successfully raising a healthy tree:
Take The Tree Wellness Quiz
Also review "worst of the worst" insects:
Top 5 Conifer Killers
Top 5 Hardwood Killers
Asian Longhorned Beetle
Attacks mostly maples.
Balsam Wooly Adelgid
Attacks northern region conifers.
Bronze Birch Borer
Attacks birch.
Douglas-fir Tussock Moth
Attacks true firs and doug-fir.
Eastern Pineshoot Borer
Attacks pines.
Emerald Ash Borer
Attacks ash.
European Pine Shoot Moth
Attacks pines.
Fall Webworm
Attacks hardwoods.
Forest Tent Caterpillar
Attacks hardwoods.
Gypsy Moth
Attacks northeast hardwoods.
Hemlock Wooly Adelgid
Attacks northern region conifers.
Ips Bark Beetles
Attacks southern pines.
Larch Casebearer
Attacks tamarack, Western Larch.
Locust Borer
Attacks black locust.
Mountain Pine Beetle
Attacks western pines.
Nantucket Pine Tip Moth
Attacks eastern pines.
Pales Weevil
Attacks most conifers.
Pine Tortoise Scale
Attacks scotch and jack pines.
Red Oak Borer
Attacks Oaks.
Redheaded Pine Sawfly
Attacks hard pines .
Saratoga Spittlebug
Attacks northeastern pines.
Southern Pine Beetle
Attacks southern pines.
Southwestern Pine Tip Moth
Attacks western pines.
Spruce Budworm
Attacks spruce and fir.
Twolined Chestnut Borer
Attacks oaks.
Variable Oakleaf Caterpillar
Attacks oaks.
Walnut Caterpillar
Attacks black walnut.
Western Pine Beetle
Attacks western pines.
Western Spruce Budworm
Attacks spruce and fir.
White Pine Weevil
Attacks white and jack pines.
White-spotted Sawyer
Attacks white and jack pines.
