Bruce Tabashnik, Ph.D., Regents’ professor and head of the University of Arizona (UA) Department of Entomology, and UA professor Yves Carrière, Ph.D., have studied how well the world’s three leading cotton-producing countries—the United States, China and India—have fared in battling resistance of pink bollworm (Pectinophora gossypiella) to genetically engineered cotton that produces caterpillar-killing bacterial proteins. Tabashnik (left) is shown here at the Langfang Experiment Station in China with colleagues Kongming Wu (center) of the Chinese Academy of Agricultural Sciences and Xianchun Li of the UA Department of Entomology. (Photo courtesy of Bruce Tabashnik, Ph.D.)