Pink, Bollworm: Populations One Year Following Initiation of a Short-Season Cotton System in the Imperial Valley, CA

Chang-chi Chu, Richard C. Weddle, Robert T. Staten, Thomas J. Henneberry, and Stephen L. Birdsall


 
ABSTRACT

The first cotton-growing season (1990) following the initiation of a mandatory short-season cotton system in 1989 in the Imperial Valley, CA, male pink bollworm, Pectinophora gossypiella (Saunders) moth catches in gossyplure-baited traps were significantly reduced. Also, fewer pink bollworm larvae per 100 bolls occurred during the season. This resulted in an estimated reduction of an average of 8,000 larvae per acre in September and early October 1990 as compared to 1989. Lint yields in 1989 and 1990 were about 2.2 bales per acre. However, fiber quality was improved in 1990 as compared to 1989. Further reduction in pink bollworm populations may be expected each succeeding year of program implementation.



Reprinted from 1991 Proceedings Beltwide Cotton Conferences pp. 711 - 713
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998