Control of Bollworm and Budworm in Cotton Using Insecticide Combinations in South-Central Arkansas, 1991 | Zendy

Donald R. Johnson | Zendy; Glenn Studebaker | Zendy

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Control of Bollworm and Budworm in Cotton Using Insecticide Combinations in South-Central Arkansas, 1991

Author(s) -

Donald R. Johnson,

Glenn Studebaker

Publication year - 1993

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/18.1.232

Subject(s) - sprayer , acre , bollworm , larva , toxicology , biology , agronomy , horticulture , mathematics , botany

Insecticides were applied on 2, 19, Jul and 12 Aug on ‘DPL 50’ cotton in Jefferson County, AR using a Spirit high clearance sprayer equipped with a CO2 powered system for spraying small plots. The sprayer was calibrated to deliver 9 gal/acre at 60 psi through TX-8 hollowcone nozzles on a 19-inch spacing. Plots were 10, 38-inch rows, 50 ft long arranged in a RCB design with 4 replications. Insect counts were made at 2-3 DAT. Counts were made by whole plant examinations of 14 row ft in each plot counting larvae and larval damage.

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