The Response of American Bollworm Moth, Helicoverpa armigera (Hubner) (Lepidoptera : Noctuidae) to Pheromone Trapping in tomato Fields

Abstract

Pheromone trapping is one of the method to trap the male and prevent them from mating and it is useful for surveying and detection moth population. The response of American bollworm, Helicoverpa armigera (Hubner) to different arrangement patterns of pheromone trap was investigated on 4 rai of tomato field, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, dry season 1992-1994. Two patterns of pheromone trapping with 6 and 8 traps were set along the periphery and within the experimental field to evaluate the response of the male moths. Data show statistically significant difference between two patterns of pheromone trapping which set along the periphery and within the experimental field. In case of two trap patterns set along periphery, it was found that there was no significant difference among them.