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Relationship of Predatory and Injurious Insects in Cotton Fields In the Salt River Valley Area of Arizona

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A study of the importance of easily seen predators was conducted on cotton during 1958-1960 in the Salt River Valley of Arizona. The abundance of such predators as Geocoris, Orius, Collops, lacewings, plant spiders, damsel bugs, assassin bugs, and lady beetles was determined during the cotton-growing season. At the same time population records were taken of lygus bugs and such destructive lepidopterous larvae as salt-marsh caterpillars (Estigmene acrea (Drury)) and cotton leaf perforators (Bucculatrix thurberiella Busck).

The predator complex did not bring severe lygus bug infestations below nondestructive levels. In the presence of high predatory insect populations present on August 1, severe infestations of either salt-marsh caterpillars or cotton leaf perforators developed in 10 of the 16 cotton fields studied.

Document Type: Research Article

Publication date: June 1, 1962

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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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