Diversity of fruit flies in different agro-climatic zones of Karnataka

Abstract

The present study was conducted to study the diversity of fruit flies in different agro-climatic zones of Karnataka. The collection of fruit flies was carrid out during April to June 2014. Results revealed that methyl eugenol attracted four species of fruit flies viz., Bactrocera dorsalis Hendel, Bactrocera correcta Bezzi, Bactrocera zonata Saunders and Bactrocera affinis Hardy. In total 71.66 per cent belonged to the B. dorsalis, 23.70 and 4.50 per cent represented by B. correcta and B. zonata respectively. B. affinis constituted only 0.14 per cent of the total catch of fruit flies. Shannon index of diversity was maximum in Bidar followed by Mudigere. Simpson index (D) was more in the Krishnarajapet, which indicates that the diversity of fruit fly species was minimum. Higher diversity of fruit flies was recorded in Bidar followed by Raichur and Mudigere.