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Leaf-Feeding Damage by European Corn Borer (Lepidoptera: Pyralidae) Larvae Reared One Generation Each Year on Dent Maize and Eight Generations Each Year on a Meridic Diet (For Eight Years) and Then Reared Continuously on a Meridic Diet for Eight Additional Years

W. D. Guthrie, J. L. Jarvis and G. L. Reed
Journal of the Kansas Entomological Society
Vol. 57, No. 2 (Apr., 1984), pp. 352-354
Stable URL: http://www.jstor.org/stable/25084524
Page Count: 3
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Leaf-Feeding Damage by European Corn Borer (Lepidoptera: Pyralidae) Larvae Reared One Generation Each Year on Dent Maize and Eight Generations Each Year on a Meridic Diet (For Eight Years) and Then Reared Continuously on a Meridic Diet for Eight Additional Years
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Abstract

A culture of the European corn borer (ECB), Ostrinia nubilalis Hübner, reared for 3 generations on a meridic diet caused severe leaf-feeding damage to maize, Zea mays L. (WF9), during 8 years of evaluation, whereas a culture reared for 76 to 153 consecutive generations on the diet caused little damage. Three ECB cultures reared on maize plants 1 generation/year and on a meridic diet 8 generations/year (from 1965 through 1972) caused severe leaf-feeding damage to WF9 plants in 1973; when we stopped rearing the 3 cultures on maize plants and reared them continuously on the diet (1974-1980), they lost some of their ability to damage WF9 plants.

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