DACF Home → Bureaus & Programs → Maine Forest Service → About Us → Forest Health & Monitoring → Insect & Disease Fact Sheets
Insect & Disease Fact Sheets
These insect and disease factsheets are being revised as resources allow. Pesticide recommendations in these fact sheets are not a substitute for pesticide labeling. Read the label before applying any pesticide. Pesticide recommendations are contingent on continued EPA and Maine Board of Pesticides Control registration and are subject to change. You can confirm registration by contacting the Maine Board of Pesticides control or searching for registered products at www.thinkfirstspraylast.org.
Some of the files below are PDF files which require the free Adobe Reader.
Insects
- Aphids
- Asian Longhorned Beetle
- Balsam Gall Midge (PDF | 405 KB)
- Balsam Shootboring Sawfly
- Balsam Twig Aphid
- Balsam Woolly Adelgid
- Barklice - Psocids
- Birch Casebearer
- Birch Leafminer
- Brown Spruce Longhorn Beetle
- Browntail Moth: Identify Winter Nests
- Bruce Spanworm
- Carpenter Ants
- Clover Mites
- Cooley Spruce Gall Adelgid
- Eastern Spruce Gall Adelgid
- Elm Leaf Beetle
- Elongate Hemlock Scale
- Emerald Ash Borer
- European Pine Shoot Moth
- Fall Cankerworm
- Fall Webworm
- Gall Mites of Deciduous Shade Trees
- Gypsy Moth
- Hemlock Looper
- Hemlock Woolly Adelgid
- Hickory Tussock Moth
- Insects from Firewood
- Introduced Pine Sawfly
- Maple Bladder Gall Mite
- Mosquito: Mosquitoes of Maine Table
- Mountain Ash Sawfly
- Oak Leaf Tier
- Oak Twig Pruner
- Orangehumped Mapleworm
- Pales Weevil
- Pine Leaf Adelgid
- Pine Spittlebug
- Red Pine Scale
- Saddled Prominent
- Saratoga Spittlebug
- Satin Moth
- Saw-Toothed Grain Beetles
- Spider Mites
- Springtails and Snowfleas
- Spruce Beetle
- Spruce Budworm
- Sumac Gall Leaf Aphid
- Tent Caterpillars
- Ticks (Maine Medical Center, Maine CDC)
- Variable Oakleaf Caterpillar
- White Pine Weevil: Pruning Tips (PDF | 723KB)
- Spray Baffle For Control of White Pine Weevil with a Garden Sprayer
- White Pine: Principal Disease and Insect Pests of White Pine in Maine (PDF | 220KB)
- Whitespotted Sawyer
- Willow Flea Weevil and Imported Willow Leaf Bug
- Winter moth
- Yellowheaded Spruce Sawfly
Diseases and Injury
- Armillaria Root Disease
- Ash Leaf and Twig Rust
- Beech Bark Disease
- Butternut Canker
- Declining Spruce Health
- Diplodia tip blight of pines
- Eastern Dwarf Mistletoe
- Heterobasidion root disease (formerly Annosus root disease)
- Logging Injuries
- Oak Wilt Disease
- Sirococcus Shoot Blight of Red Pine
- Sudden Oak Death
- Tar Spot of Norway Maple
- White Pine Blister Rust
- White Pine: Principal Disease and Insect Pests of White Pine in Maine (PDF | 220KB)
- White Pine Needle Diseases
- Field Manual for Managing Eastern White Pine Health in New England (PDF | 9.25 MB)
- Winter Drying