LDA Moth

Lymantria dispar asiatica

^{Photo by John G. Ghent, USDA Forest Service, Bugwood.org}

 

Survey Information:

The LDA Moth (Lymantria dispar asiatica) defoliates many different coniferous and deciduous tree species. The LDA Moth has been found on the west coast of the US. Surveys are conducted because of the presence of potential host material in Wyoming and because the lure for Lymantria dispar dispar also attracts Lymantria dispar asiatica. To date, it has not been found in Wyoming.

The LDA Moth Survey in Wyoming is conducted by USDA APHIS PPQ, Wyoming State Forestry, National Park Service, US Forest Service, and the Wyoming Department of Agriculture. A sticky trap with lure attractants is placed in a potential risk area from May until October. The traps are collected and monitored for suspects at the end of the field season. If suspects are found they are sent to a USDA lab in Texas for DNA analysis. The ability to identify the LDA Moth by DNA analysis was incorporated into the Lymantria dispar survey program in 1992.

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