Beneficial arthropod behavior mediated by airborne semiochemicals. II. Olfactometric studies of host location by the parasitoidMicroplitis croceipes (Cresson) (Hymenoptera: Braconidae) |
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Authors: | F. J. Eller J. H. Tumlinson W. J. Lewis |
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Affiliation: | (1) Department of Entomology and Nematology, University of Florida, 32611 Gainesville, Florida;(2) Insect Attractants, Behavior, and Basic Biology Research Laboratory Agricultural Research Service, U.S. Department of Agriculture, 32604 Gainesville, Florida |
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Abstract: | The response ofMicroplitis croceipes (Cresson) to odors from a plant-host complex was investigated using a four-choice olfactometer. Female, but not male, parasitoids responded in a dose-dependent fashion to volatiles from the plant-host complex and oviposition experience enhanced this response. Female age had no apparent effect on the response. Both artificially damaged leaves and frass elicited positive responses but of lower magnitude than those elicited by the plant-host complex. Volatiles collected from the plant-host complex placed on filter paper also elicited positive responses by female parasitoids.Mention of a commercial or proprietary product does not constitute an endorsement by the USDA. |
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Keywords: | Hymenoptera Braconidae Microplitis croceipes Heliothis zea parasitoid host selection volatile attractant olfactometer |
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