Author： MAXWELL FOWDEN G. HARDEE D. D. PARROTT W. L. JENKINS JOHNIE N. LUKEFAHR M. J.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.62, Iss.2, 1969-03, pp. : 315-318
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Abstract
The attraction, feeding, and oviposition of Anthonamus grandis Boheman on the dioecious plant Hampea sp., was compared with Deltapine Smoothleaf cotton by laboratory bioassay. Plant parts and extracts of the male plant were comparable to cotton in attractiveness and stimulation of feeding, but extracts of female buds and capsules were significantly less attractive than extracts of male buds and cotton buds. A volatile repellent(s) in the extracts of the female buds and capsules probably masked the attractive material(s) present, but after storage at 5°C these extracts became as attractive as extracts of the male plant and of cotton freshly prepared from buds stored at −90°C. Also, female buds contained significantly less feeding stimulant than male buds and cotton buds. This lesser concentration plus the volatile repellent produced a high degree of resistance of the boll weevil (nonpreference) to female buds and capsules.
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