Abstract
Effects of sinusoidally fluctuating diurnal temperature regimes on longevity and daily oviposition rate of adult female lesser cornstalk borers (LCB), Elasmopalpus lignosellus (Zeller), were determined in controlled environment chambers. Mean daily oviposition rate decreased exponentially with an increase in adult age and changed with the temperature regime. Adults held in a cool day/hot night environment had a significantly lower daily oviposition rate than those held in a hot day/cool night or a very hot day/warm night regime. Total number of eggs laid per female LCB was less in the cool day/hot night regime than in the other two environments. Longevity of adult female LCB was greater in all three fluctuating temperature environments than in constant-temperature regimes reported in the literature.
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