Evaluations of Gossyplure Formulation for Pink Bollworm Control under Commercial Conditions in California's Palo Verde Valley

C.A. Beasley and T.J. Henneberry


 
ABSTRACT

Gossyplure, the pink bollworm, Pectinophora gossypiella (Saunders), (PBW) pheromone as been use a commercially since 1977 to suppress populations of this pest in cultivated cotton production systems in Arizona and southern California. At present, two slow release systems for gossyplure are commercially available: (1) Nomate® PBW--gossyplure contained in hollow fibers, and (2) Disrupt®--gossyplure contained in a 3 layered plastic laminated flake. Both materials are aerially applied along with specific sticker substances for each product. During the 1980 and 1981 seasons, small amounts of pyrethroid insecticides were added, by some commercial applicators, to the Nomate PBW sticker (Biotac®) to kill male PBW moths attracted to and contacting individual point sources (gossyplure-containing fibers or sticker droplets). In cooperation with growers and pest control advisors in California's Palo Verde Valley, we evaluated PBW control and numbers of scheduled beneficial predators in fields treated with Disrupt (with and without permethrin) and Nomate (with and without permethrin), hereafter referred to as Disrupt (+), Disrupt (-), Nomate (+), and Nomate (-), respectively. Six fields for each of the above systems and six fields treated with insecticides only constituted the five treatments. This paper is considered preliminary to a final report on the project since all data have not been completely analyzed.



Reprinted from Proceedings of the 1983 Beltwide Cotton Production Research Conference pp. 171 - 172
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998