Iowa State University’s Aaron Gassmann discusses “Biotechnology and Agricultural Sustainability: Insights from Interactions Between Western Corn Rootworm and Bt Corn” from 3:30-4:30 p.m. today, Oct. 29, in 121 Fisher Auditorium at CFAES’s research arm, OARDC, 1680 Madison Ave., in Wooster. You also can watch by video link in 244 Kottman Hall, 2021 Coffey Road, at Ohio State in Columbus. Free. Details: michel.70@osu.edu. Gassmann’s lab studies, among other things, resistance to Bt corn by the western corn rootworm, a key U.S. corn pest (pictured is an adult male). Bt corn has been genetically modified for resistance to certain pests. (Photo: Tom Hlavaty, USDA-ARS.)