LONGEVITY AND COMPARATIVE EFFICACY OF AGGREGATION PHEROMONE LURES AGAINST RED PALM WEEVIL, Rhynchaphorus ferrugineus (Olivier) (COLEOPTERA: CURCULIONIDAE)
The red palm weevil, Rhynchophorns ferrugineus (Olivier), the most serious pest of coconut, Cocos nucifera L. infests palms of 3 to 20 years age. As the red paltn weevil is a concealed tissue borer, it is very difficult to detect early infestation for timely control measures (Abraham et aI., 1998). Under such situations, pheromone traps play an important role in monitoring and detecting early infestation. Kurian et al. (1984) successfully used coconut log traps baited with toddy + yeast + insecticide to attract and kill the adult weevils. After the discovery of aggregation pheromone ‘Ferrolure’ by Hallet et al. (1993), a bucket trapping system was designed by Oehlshlager et al. (1993a) containing pheromone, food bait, yeast tablets and insecticide to capture red palm weevil adults.
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