Genetically engineered (GE) corn, soybeans and cotton have increased use of weed-killing herbicides — a type of pesticide — by 383 million pounds in the U.S. from 1996 to 2008, according to a new report titled “Impacts of Genetically Engineered Crops on Pesticide Use in the United States: The First Thirteen Years” announced by The Organic Center (TOC), the Union for Concerned Scientists (UCS) and the Center for Food Safety (CFS).