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Responses of braconid parasitoidsMicroplitis croceipes (Cresson) andM. demolitor Wilkinson to stereoisomers of kairomone 13-methylhentriacontane |
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| Authors: | W J Lewis P E Sonnet D A Nordlund |
| Affiliation: | (1) U.S. Department of Agriculture, Insect Attractants, Behavior, and Basic Biology Research Laboratory Agricultural Research Service, 32604 Gainesville, Florida;(2) Present address: Chemical Modifications Research, ARS, USDA, East 600 Mermaid Lane, 19118 Wyndmoor, Pennsylvania;(3) Present address: Cotton Insects Research Unit, ARS, USDA, P.O. Drawer DG, 77814 College Station, Texas |
| Abstract: | The responses ofMicroplitis croceipes (Cresson) andMicroplitis demolitor Wilkinson to theR andS stereoisomers of the kairomone 13-meth-ylhentriacontane were evaluated. Singly and in combination at 5, 50-, and 500-ng dosage levels each were tested. There was a linear dosage response by both species to the three dosages. Furthermore, there was no difference between responses to the two stereoisomers or their combination by either species at any dosage level. The effects of the two stereoisomers were fully interchangeable and additive. This is the first report of parasitoid responses to stereoisomers of a kairomone. |
| Keywords: | Microplitis croceipes Microplitis demolitor Hymenoptera Braconidae parasitoids semiochemicals kairomones 13-methylhentriacontane stereoisomers enantiomers Heliothis zea Lepidoptera Noctuidae |
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