International Journal of Entomology Research

Authors
VL Pathipati, T Vijaya Lakshmi, Rajani, CV Ramana, L Naram Naidu

Abstract
To know the initial occurrence and subsequent build-up of blossom midge incidence on chilli crop in relation to weather parameters, the field experiments were carried out from 2008-09 to 2012-13 at Horticultural Research station, Lam, Guntur, Andhra Pradesh. Correlation coefficients worked out between midge population and weather parameters of preceding one week indicated that among the various weather parameters, significant negative correlation was observed between weather parameters of maximum temperature (-0.41**), minimum temperature (-0.52**), whereas significant positive correlation with morning relative humidity (0.67**) evening relative humidity (0.51*), rainy fall (0.10). The correlation studies carried out with preceding two weeks weather data; similar trend was observed in the correlations. Correlation coefficients worked for 2009-10,2010-11,2011-12 and 2012-13 years also. The combined effect of weather parameters on incidence of midges shows that, 72 to 92 per cent incidence was influenced by prevailed weather parameters.