It took just three years for the fall armyworm (Spodoptera frugiperda) to develop resistance to genetically modified Bt corn in Brazil. In a new article in the Journal of Integrated Pest Management, researchers offer recommendations for ensuring greater durability of future genetically engineered traits in crops. (Photo credit: John C. French Sr., Retired, Universities:Auburn, GA, Clemson and U of MO, Bugwood.org)