Alfalfa, aka lucerne
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Bad news for Washington farmers?

Pity a Washington farmer who grew a crop of GMO-free alfalfa only to have it rejected for export — because tests showed it had been tainted by a genetically modified variety.

An exporter found the farmer’s hay to have been contaminated with Roundup-resilient alfalfa, which was developed by Monsanto and approved for use by the U.S. Department of Agriculture in 2011. Farmers who grow the GMO alfalfa can douse their fields with the herbicide Roundup without hurting the crop.