USDA Forest Service

Forest Health Protection, Southern Region


USDA Forest Service
Forest Health Protection
Region 8
1720 Peachtree Road, NW
Room 816 N
Atlanta, GA 30309

Phone: (404) 347-7478
Fax: (404) 347-1880

United States Department of Agriculture Forest Service.

USDA Link Forest Service Link


Aerial Application Technology

In 1991, FHP began development of gypsy moth management support software. The first product GypsES (Gypsy Moth Expert System) was released in 1995 and was used by APHIS, US Air Force, state and county agencies, and private applicators. With assistance from Harold Thistle of the Forest Health Technology Enterprise Team, portions of the program were rewritten to work within ArcView in 2001 and have been termed Spray Advisor.

Spray Advisor development now includes partners from the Canadian Forest Service and New Zealand Forest Research.

Specialty software has been developed to assist in project planning and treatment:

  • Calibrator - Aircraft calibration application
  • THC - Temperature and humidity charting to determine proper environmental conditions for Btk application
  • CASPER - Application to estimate aircraft productivity and efficiency rates along with pilot flight hours.


Media Clips



USDA Forest Service - Forest Health Protection, Southern Region
Last Modified: Monday, 16 December 2013 at 14:18:29 CST

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