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

K.R. Summy


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