Evaluation of relative sampling methods for population estimation of the pepper weevil, Anthonomus eugenii Cano (Coleoptera: Curculionidae)

Abstract

Five sampling methods were evaluated simultaneously for their efficiency in estimating pepper weevil (Anthonomus eugenii Cano) populations. The use of yellow sticky traps was assessed superior to other methods when correlated with direct weevil counts. Comparison between sticky traps of eight different colors indicated that yellow and white traps are significantly more attractive to pepper weevils than light green, red, dark green, gray, blue or black. Commercially available Pherocon AM traps were tested for efficiency. Weevil catch in these traps was positively correlated with population density, but relationship was weak and weekly catch erratic. Factors affecting trap efficiency are mentioned.