Forest Health News 2019
Effectively slowing the rate of spread of the exotic Lymantria dispar
By Tom Coleman, USDA Forest Service
Since 2000, the National Gypsy Moth Slow the Spread (STS) Program has effectively slowed the rate of spread of the exotic Lymantria dispar dispar in the eastern U.S. STS represents one of several management strategies under the USDA’s National Gypsy Moth Management Program. STS is a collaborative effort between the USDA Forest Service, Forest Health Protection, USDA Animal and Plant Health Inspection Service, 11 state agencies, a non-profit foundation, and two universities. Together these groups annually monitor >62,000 pheromone traps and suppress new Lymantria dispar populations on >300,000 acres of private, state, and federal land along its expanding invasion front.
For more information about Lymantria dispar in the U.S., its management, and the STS program, visit the Natioinal Gypsy Moth Slow the Spread Program story map.