Antifeedant activity of precocenes and analogs onRhodnius prolixus |
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| Authors: | P. D. Azambuja W. S. Bowers J. M. C. Ribeiro E. S. Garcia |
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| Affiliation: | (1) Department of Physiology, Universidade Federal Fluminense, C.P. 183, 24000 Niteroi, R. J., (Brazil);(2) Department of Entomology, New York State Agricultural Experiment Station, Cornell University, 14456 Geneva, New York, USA |
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| Abstract: | Summary Precocene and analogs added to the meal of 4th instar larvae ofRhodnius prolixus were tested as antifeedants. While precocene II had a strong antifeedant effect (ED50=48  g/ml), the other compounds showed no drastic inhibition of feeding (ED50>140 g/ml). ATP, a phagostimulant, did not reverse the antifeedant action of precocene II. The mechanism of feeding inhibition is discussed.Acknowledgments. This research was supported by funds from Conselho Nacional de Desenvolvimento Cientifico e Tecnologico, and National Science Foundation grants PCM-76-09647 and PCM-79-03245. |
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