Published March 31, 2013 at 500 × 374 in Multi-Toxin Biotech Crops Not Silver Bullets, UA Scientists Warn A major agricultural pest, the moth Helicoverpa zea and its caterpillar go by many common names, depending on the crop they feed on: Shown here is a “corn earworm.” (Photo courtesy of José Roberto Peruca) (Visited 9 times, 1 visits today)