Forest & Grassland Health

Storymap of 2019 Alaska Forest Health Highlights.Ground Survey Dashboard from 2019 and prior years2018 Alaska Forest Health Conditions Report. Spruce beetle. Hemlock sawfly defoliation in Southeast Alaska in 2018. Spruce needle rust in Wood-Tikchik State Park in 2019. Credit: Jason Moan AKDOF. Aspen running canker. Sportsman cabin destroyed by hazard tree. Bird vetch. Spotted knapweed removal.

Common Forest Insects & Diseases in Alaska

Select forest diseases, insects and noninfectious disorders from the menu below for their current status, distribution, historic activity, symptoms, biology, and impacts to host trees and forest management. Also see:

 

FOREST INSECTS

Bark Beetles and Woodborers

  • Ambrosia Beetle
  • Northern Spruce Engraver
  • Spruce Beetle
  • Western Balsam Bark Beetle

Defoliating Insects

Conifer Defoliators
Hardwood Defoliators – External Leaf Feeding
Hardwood Defoliators –
Internal Leaf Feeding
 

 

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https://www.fs.usda.gov/main/r10/forest-grasslandhealth/