Resistance of Cotton Plant Hairs to Mobility of First-Instars of the Pink Bollworm
Authors: Smith, R. L.; Wilson, R. L.; Wilson, F. D.
Source: Journal of Economic Entomology, Volume 68, Number 5, 15 October 1975 , pp. 679-683(5)
Publisher: Entomological Society of America
Abstract:Movements of 1st-instars of pectinophora gossypiella (Saunders) on 6 varieties of cotton with leaves and petioles differing in amount of pubescence were observed, timed, and traced with a camera lucida. The 2 most pubescent varieties, SA-166 and TM-l (H2), appeared to confuse larvae and greatly impeded their movements. We conclude that high plant hair density in cotton is a promising mechanism for host plant resistance to the pink bollworm. Larvae paused regularly to head swing and to sample the substrate with their mandibles while moving on leaves and petioles. When leaf neclaries were encountered by larvae, feeding usually occurred.
Document Type: Research Article
Publication date: 1975-10-15
- 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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