Significance of Cotton Residue as Overwintering Habitat for Boll Weevil in Southern Texas

K.R. Summy


 
ABSTRACT

Survival of adult boll weevils, Anthonomus grandis Boheman, removed from cells of dessicated bolls after a 202-day holding period, ranged from 4-162 days for males (x=108.3 days) and 5-125 days for females (x=76.0 days). Oviposition commenced ca. 11 days after exposure to fresh (uninfested) cotton squares and continued for a period of ca. 108 days. Of the total number of eggs produced during this period (n=414, or 103.5 eggs/female), ca. 82.9% were determined to be viable, i.e., produced first-instar larvae. The ecological significance and ramifications of this phenomenon are discussed.



Reprinted from 1990 Proceedings: Beltwide Cotton Production Research Conferences pp. 296 - 297
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998