Insect Diagnostic Lab Factsheets
Alphabetical
Click on any title in the list below, to view, print, or download a pdf file. The same factsheets are also listed grouped By Topic.
- Ants in Houses
- Aphids
- Apple Maggot
- Aquatic Insects
- Asian Lady Beetle
- Asian Longhorned Beetle (includes links to other websites)
- Asparagus Beetles
- Bagworms
- Bald-Faced Hornets (factsheet from Cornell Cooperative Extension)
- Bed Bugs
- Bees (factsheet from Cornell Cooperative Extension)
- Beetles in Flour, Grain, or other Stored Foods
- Beetles Infesting Woolens (Carpet Beetles; Dermestids)
- Beneficial Insects – Nature’s Pest Control
- Parasitoids (a large poster: download pdf and zoom in to see closeup photos)
- Black-legged Tick
- Booklice
- Boxelder Bug
- Brown Marmorated Stink Bug (links to other websites)
- Bumble Bees (factsheet from Cornell Cooperative Extension)
- Cabbage Maggot
- Carpenter Ants (factsheet from Cornell Cooperative Extension)
- Carpenter Bees
- Carpet Beetles (Dermestids) — see: Beetles Infesting Woolens and Larder Beetle
- Centipedes
- Cigarette and Drugstore Beetles
- Clothes Moths
- Cockroaches
- Colorado Potato Beetle
- Deer Tick (Black-legged Tick)
- Drain Flies (Moth Flies)
- Emerald Ash Borer (links to other websites)
- European Chafer
- European Earwig
- Fall Webworm
- Firebrats
- Firewood Insects
- Flea Beetles
- Fleas
- Fourlined Plant Bug
- Fruit Flies (Vinegar Flies, Pomace Flies)
- Galls on Plants
- Gypsy Moth
- Hemlock Woolly Adelgid (links to other websites)
- Hornets: see Bald-Faced-Hornets and Stinging Insects
- Horntails (Wood Wasps)
- Imported Cabbageworm (Cabbage White Butterfly)
- Imported Willow Leaf Beetle
- Indian Meal Moth
- Insects in Firewood
- Lady Beetles (Ladybugs; Ladybird beetles)
- Multicolored Asian Lady Beetle
- Larder Beetle
- Magnolia Scale
- Managing Home Vegetable Garden Pests
- Mealybugs on Houseplants
- Mexican Bean Beetle
- Millipedes (and Sowbugs, Pillbugs, and Centipedes)
- Moth Flies (Drain Flies)
- Moths indoors: see Indian Meal Moth (from stored grains or birdseed) and Clothes Moths
- Mountain Ash Sawfly
- Oak Skeletonizer
- Onion Maggot (factsheet from the NYS Agricultural Experiment Station)
- Paper Wasps (factsheet from Cornell Cooperative Extension)
- Parasitoid Insects
- Pear Thrips
- Plant Galls
- Powder Post Beetles
- Pseudoscorpions
- Rhubarb Curculio
- Sawtoothed Grain Beetle
- Silverfish and Firebrats
- Snow-Fleas
- Sowbugs and Pillbugs
- Spiders
- Spotted Wing Drosophila (factsheet from Cornell Cooperative Extension)
- Springtails
- Squash Vine Borer
- Stinging Insects (Bees & Wasps; factsheet from Cornell Cooperative Extension); also see Stinging Insects (What’s Bugging You) at NY State Integrated Pest Management
- Striped Cucumber Beetle
- Sugar Maple and Pear Thrips
- Termites (factsheet from Cornell Cooperative Extension)
- Ticks (factsheet from a medical entomology professor at Cornell)
- Tomato Hornworm
- Vegetable Garden Pests (Managing Home Vegetable Garden Pests)
- Viburnum Leaf Beetle
- Wasps (factsheet on Stinging Insects from Cornell Cooperative Extension)
- Western Conifer Seed Bug
- Yellowjackets (factsheet from Cornell Cooperative Extension)
By Topic
If any pdf or link does not work, please notify IDLDiagnosticLab@cornell.edu and a copy can be emailed to you.