Spanogonicus albofasciatus and Rhinacloa forticornis on Cotton in Arizona

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Sweep-net collections of Spanogonicus albofasciatus (Reuter) and Rhinacloa forticornis Reuter on cotton in 3 different years showed that S. albofasciatus was dominant in all years with its seasonal peak larger than and preceding that of R. forticornis. R. forticornis appeared to be a predator. Both species were abundant on weeds in cottonfields without being abundant on cotton itself. In cage tests the cotton plants easily tolerated feeding damage by S. albofasciatus and recovered quickly. Square shedding in the presence of this insect should probably be attributed to lygus bugs or to physiological causes. Test results indicated that natural populations would rarely damage cotton except in the seedling stage. A low reproductive rate of S. albofasciatus on Acala 4–42, Acala 44, and Deltapine Smoothleaf 3798 cotton varieties is suggested.

Document Type: Research Article

Publication date: April 1, 1965

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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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