Mass Trapping of the Sweet Potato Weevil Cylas formicarius (FABRICIUS) (Coleoptera: Brentidae) with a Synthetic Sex Pheromone
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概要
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The suppressing effect of mass trapping with a synthetic pheromone on the population of the sweet potato weevil, Cylas formicarius, was studied in a small sweet potato field in Okinawa, Japan. The traps captured 65,214 males and 18 females from July, 1989 to December, 1990. In the pheromone-treated field, the sex ratio of the population largely skewed to female and the mating rate of females was reduced. The density of weevils was notably decreased in the pheromone-treated field, probably due to male annihilation and mating disturbance. Thus, mass-trapping is promising as a controlling agent against the sweet potato weevil.
- 1995-02-25
著者
関連論文
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