Age-specific survival rates of the rice brown planthopper, nilaparta lugens (stal.) in the laboratory

K. L. Heong

Abstract

The age-specific survival rates of the egg, nymph and adult female stages of the brown planthopper, Nilaparvata lugens (Stal.) under laboratory conditions are determined. Survivorship curves obtained using the model of BELLOWS and Birley ( 1981) have been found to closely approximate the daily survival rates at each stage. Thus, the insect population can be modelled from the means and standard deviations of the various stage.

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