Washington Dept. of Natural Resources 2003 FH Highlights

Washington Department of Natural Resources

posted by:
USDA Forest Service
Pacific Northwest Region
Forest Health Protection

Washington Forest Health Issues in 2003

Washington Forests General Forest Conditions	Insects Fir Engraver Pine Bark Beetles Citrus Long-horned Beetle Western Spruce Budworm Douglas-fir Beetle Spruce Beetle Douglas-fir Tussock Moth Western Hemlock Looper Gypsy Moth Other Defoliators
Aerial Survey Overview Survey Results
Animal and Abiotic Drought Fire Bear Damage
Diseases Sudden Oak Death Swiss Needle Cast White Pine Blister Rust

Fir Engraver

Fir engraver beetle is a native bark beetle that attacks and kills, or strip kills, weakened true fir trees.

Almost 300,000 acres of scattered true fir mortality were mapped throughout eastern Washington, up from 82,750 acres in 2002.

Droughty conditions likely precipitated this event. Most of the affected trees were not in the overstory, but larger trees were also affected.

Additional Information

Historical Activity and Drought Correlation

Trees killed by bark beetles

This photo was taken during the 2003 aerial survey northeast of Spokane. The red and yellow trees are recent mortality. The smaller ones are mostly true fir and the larger are ponderosa pine.

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