Development of immature Mexican corn rootworm, Diabrotica virgifera zeae Krysan & Smith, was investigated at 8 temperatures ranging from 15 to 338C. Development to adult was only completed in the range from 15 to 308C; larvae failed to complete the 3rd instar at 31.5 and 338C. Development from hatch to adult emergence was fastest at 308C ('25 d), and slowest at 158C ('105 d). Developmental time...
