Slow the Spread - Map Library

Map Library

The Slow the Spread Map Library provides access to historical and current Gypsy Moth distribution and regulatory maps. The maps are provided in PDF or GIF format and some may be combined into ZIP files.

Project Maps

Grid Structure Trapping grid structures	Krig Surface Interpolated moth capture
Treatment Vicinity Vicinity maps for treatments	Population Time Series Krig Surface animated GIF (1998 - 2006) Source: USDA Forest Service - Gypsy Moth In North America
Military Flight Routes Military flight route maps for aerial treatment of Gypsy Moth	Aeronautical Charts Aeronautical charts for aerial treatments of Gypsy Moth
Strip Maps Catch and planning data at a local level	State Maps Catch and planning data at a state wide level
Treatments by state/region

Additional Maps

APHIS Quarantine
Current legal Gypsy Moth quarantine
Source: USDA APHIS - Gypsy Moth

Host Tree Distribution
Preferred tree host distribution (basal area per acre)
Source: USDA Forest Service - Gypsy Moth In North America

Historic Maps

Defoliation Historic Gypsy Moth defoliation survey maps Source: USDA Forest Service - Gypsy Moth In North America.	Quarantine Historic USFS quarantine maps Quarantine animated GIF (1900 - 2007) Source: USDA Forest Service - Gypsy Moth In North America.
1943 Survey Distribution of Gypsy Moth resulting from 1943 survey	1955 Survey Distribution of Gypsy Moth resulting from the 1955 survey

Page developed and maintained by Virginia Tech