A U.S. court has nullified the government's latest approvals of certain agricultural weedkillers sold by Bayer, BASF and Syngenta, fueling uncertainty among farmers who spray the products on soybeans and cotton genetically engineered to resist them.

EPA violated procedures mandating public input, judge rules
Court cites lack of analysis of effects on wildlife
Revised labels prohibit feeding, foraging of treated crops
Ban would mostly affect corn, sunflower crops