Effect of weather parameters on population fluctuation of guava fruit flies, Bactrocera Spp.

Abstract

Studies on population dynamics of fruit flies (Bactrocera spp.), infesting mango were conducted at N.M. College of Agriculture, Navsari by using methyl eugenol trap and per cent infested fruits. The maximum population of Bactrocera spp. was observed during the month of April to July which coinciding with fruiting period of mango. The fly population decreased during December to February. The trap catch study carried out for two years was correlated with abiotic factors and it was found that it showed positive correlation with temperature (maximum, minimum and average), relative humidity (maximum, minimum and average), rainfall and wind velocity.