USDA Forest Service

Gypsy Moth In North America


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Morgantown, WV 26505

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United States Department of Agriculture Forest Service.

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Gypsy Moth Defoliation

When gypsy moth densities reach high levels, large quantities of foliage are consumed and partial or total defoliation of the forest canopy may occur. Gypsy moth outbreaks often extend over hundreds of miles and the defoliated areas may be extensive.

Historical Defoliation Maps

Gypsy Moth Digest (historical data on gypsy moth defoliation and suppression).

lots of larvae
Defoliated ridge-top, Western Massachusetts.

Return to Gypsy Moth in NA

Last modified 10-29-03 by Sandy Liebhold .

USDA Forest Service - Northeastern Research Station

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