Life-Tables and Intrinsic Rate of Natural Increase of Xanthopimpla Stemmator Thunberg (Hymenoptera:Ichneumonidae) Population On Chilo Partellus Pupae
The pupal parasitoid Xanthopimpia stemmator Thunberg oviposits in the pupae of the spotted stalk borer (or sorghum stem borer) Chilo partellus (Swin). The adult parasitoid emerges from the pupal case, killing it in the process. Ten mated females of the parasitoid had an average longevity of 30 days (maximum 37 days and minimum 22 days). The number of progeny produced ranged from 71 to 115, with an average of 84.5. The male:female sex-ratio of their progeny averaged 1.14:1. The maximum mean progeny production per day (mx) was 1.9. The innate capacity for increase was 0.131 per female per day; and the population multiplied 43.43 times in the generation time of 28.78 days.
Key WordsXanthopimpia stemmator Chilo partellus progeny intrinsic rate of natural increase
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- Bains S. B. and Shukla K. K. (1976) Effect of temperature and survival of maize borer. Chilo partellus (Swin.). Indian J. Ecol. 3, 149–155.Google Scholar
- Baker W. A., Bradlay W. G. and Clark C. A. (1949) Biological control of the European corn borer in the United States. U.S. Dep. Agric. tech. Bull 983, 8.Google Scholar
- Chundurwar R. D. (1975) Fecundity and life table studies on Eriborus trochanterutus Morley (Hymenoptera: Ich-neumonidae). J. Indian Potato Ass. 2, 42–45.Google Scholar
- Chundurwar R. D. (1977) Life table studies and intrinsic rate of increase of Agathis unicolorata (Shenefelt) (Hymenoptera:Braconidae). Indian Acad. Sci. 86, 39–43.Google Scholar
- Thompson W. R. (1957) A Catalogue of the Parasites and Predators of Insects Pests. Section 2, Part 4. Commonwealth Inst. Biol. Cont.Google Scholar
- Townes H. (1970) The genera of Ichneumonidae, Part 3. Mem. Am. ent. Inst. 13, 1–307.Google Scholar
- Townes H. and Chié Shui-Chen (1970) The Indo-Austra-lian species of Xanthopimpla (Ichneumonidae). Mem. Am. ent. Inst. 14, 1–372.Google Scholar
- Townes H., Townes M. and Gupta V. K. (1961) A catalogue and reclassification of the lndo-Australian Ichneumonidae. Mem. Am. ent. Inst. 1, 1–522.Google Scholar
- Trehan K. N. and Butani D. K. (1950) Notes of life history, bionomics and control of Chilo zonellus Swinhoe in Bombay province. Indian J. Ent. II, 47–59.Google Scholar