Activity of Larvae and Pupae of the Pink Bollworm Subjected to Burial1

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Larvae and pupae of the pink bollworm (Pectinophora gossypiella (Saund.)) were either placed on the surface or buried at different depths in eight types of soil contained in glass-walled observation boxes. Larvae placed on the soil surface burrowed very little and spun cocoons incorporating debris or soil particles. A few buried larvac lived for more than 280 but less than 360 days. The movement of buried larvae was erratic but with a general upward trend. Higher soil moistures brought about increased mortality lind decreased activity among buried individuals. The crust formed by irrigation caused very adverse conditions that resulted in a high mort.alit.y. Of those individuals buried, 4.7% reached the surface.

Document Type: Research Article

Publication date: August 1, 1961

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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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