ECOLOGY AND POPULATION BIOLOGY Effects on Development of Immature Mexican Corn Rootworm (Coleoptera: Chrysomelidae)
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چکیده
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 times, from hatch to adult emergence, differed for males and females, males emerged before females. A pooled thermal threshold of 10.38C was estimated for immature development. Development from hatch to adult emergence was estimated to take 473 DD.
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