The seeds have been turned over to the Washington State Department of Agriculture. Spokesman Mike Louisell says testing for genetic modification will be completed by Friday at its Yakima, Wash., seed lab.
Genetically modified alfalfa is legal to grow and sell in the U.S., contrasting May's discovery of genetically modified wheat in an Oregon field. Modified wheat is illegal in the U.S. outside of licensed test fields.
But this farmer was trying to grow nonmodified alfalfa. The farmer contacted the Agriculture Department in late August, and tests began after Labor Day. The department has not identified the farmer.
Pesticide-resistant alfalfa was developed by Monsanto Co. and has been licensed to several companies.