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Likelihood of Multiple Mating in Diabrotica Virgifera Virgifera (Coleoptera: Chrysomelidae)

Author:
Kang, Jungkoo, Krupke, Christian H.
Source:
Journal of economic entomology 2009 v.102 no.6 pp. 2096-2100
ISSN:
0022-0493
Subject:
insects, Diabrotica virgifera virgifera, plant pests, insect pests, corn, Zea mays, insect control, biological control, biological control agents, Bacillus thuringiensis, transgenic plants, defense mechanisms, insect reproduction, mating frequency, estimation, risk assessment, larvae, normal values, resistance management
Abstract:
We evaluated the mating ability of male western corn rootworms, Diabrotica virgifera virgifera Leconte (Coleoptera: Chrysomelidae), for 20 d after initial mating, using a series of laboratory experiments. Males mated an average of 2.24 times within 10 d after their first mating and averaged 0.15 matings between days 11 and 20 after their first mating. Because estimating the mating frequency in Bt/ refuge cornfields is critical to developing robust and reliable models predicting Bt resistance development in this pest, we discuss how these laboratory findings may influence development and evaluation of current and future insect resistance management plans.
Agid:
771837