Parasitism; Development of Progeny and Sex-Ratio of Parasierola Nephantidis Mues. (Bethylidae) on Different Instars of parasierola Nephantidis Mues. (Bethylidae) on Different Instars of Opisina Arenosella Wlk. (Nephantis Serinopa Meyr.)
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1986
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Studies on the intensity of successful parasitism and development of progeny of P. nephantidis reared on different instars of 0. arenosella catetpillars revealed that the stage of the host larvae used was critical in determining the acceptance by the parasitoid, number of eggs laid, number of offsprings developed and the proportion of males in the brood. Fifth and early sixth instar caterpillars of O, arenosella were ideal stages of the host for large scale multiplication of P. nephantidis in the laboratory. The parasitoid was found to be capableof sup pressing the early instar cater pillars of the pest by stinging, even though they were not ideal stages for the development of a good number of parasitoids.
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Indian Coconut J. 1986 v-16 i-11 p-3-5