Chlorpyrifos Applications for Greenhug (Homoptera: Aphididae) Control with a New Multifunction Irrigation System

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Abstract:

A new multifunction irrigation system (MFIS) was evaluated in 1983, 1985, and 1986 as a tool for chlorpyrifos applications to grain sorghum for greenbug, Schizaphis graminum (Rondani), control. The unique MFIS chemical nozzling system was evaluated for efficacy or chlorpyrifos rates applied through nozzles either held stationary above or moving within the sorghum canopy, and for efficacy of chlorpyrifos application with and without a nonemulsifiable oil in the spray mixture. Greenbug control was achieved when one-eighth to one-sixteenth of the registered rate of chlorpyrifos was applied through the MFIS. Applications through MFIS nozzles moving within the canopy were more effective with lower chlorpyrifos rates than applications through stationary nozzles. Nonemulsifiable oil need not be added with chlorpyrifos when applying treatments through the MFIS.

Document Type: Research Article

Publication date: December 1, 1988

More about this publication?
  • 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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