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Evaluation of formulations of synthetic sex pheromone and trap designs for trapping sweet potato weevil cylas formicarius elegantulus summers



Evaluation of formulations of synthetic sex pheromone and trap designs for trapping sweet potato weevil cylas formicarius elegantulus summers



Zhonghua Kunchong 9(1): 37-44



Experiments were conducted in the laboratory and in the field to evaluate the formulation of synthetic sex pheromone and trap designs for trapping sweetpotato weevil, Cylas formicarius elegantulus (Summers). Results showed that the funnel type PET bottle trap baited with 1mg of synthetic sex pheromone dispensed in polyethylene microtube was more effective, inexpensive, and easy to be used for trapping male weevils than any other designs. The active distance of sex pheromone was about 10 meters. The total rate of recapture averaged to be 81.9%, and was mainly affected by the temperature.

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