Pink Bollworm1: Effects of Temperature, Photoperiod and Light Intensity, Moth Age, and Mating Frequency on Oviposition and Egg Viability

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Abstract:

At 15.6° and 21.1°C (l4-h photophase), mating, oviposition, and egg viability of adult Pectinophora gossypiella (Saunders), from laboratory-reared larvae and from field-collected larvae that overwintered in cotton bolls, were reduced. Also, fewer spermatophores per female were transferred. Mating was not reduced by a temperature of 32.2°C. Rate of oviposition per day was highest at 26.7° and 32.2°C.

Virgin females produced an avg 16±3 eggs. Females mated once produced as many viable eggs as multiple-mated females. Male and female moths on the night of emergence and night after emergence mated less than older moths, and this resulted in lower oviposition rates of the females. Conditions most conducive to mating appeared to be a temperature of 26.7 and a 14-h photophase. Mating and oviposition were inhibited by continuous light of ca. 100 ft-c and oviposition was inhibited by 50 ft-c. Also, females exposed to such illumination were ca. 1–2 days longer in depositing their 1st eggs.

Document Type: Research Article

Publication date: August 1, 1979

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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