Population dynamics of different pests on Bt-cotton vis –a –vis meteorological parameters in Punjab

Abstract

The incidence of Jassid, whitefly and tobacco caterpillar was recorded from the South-Western districts of Punjab i.e. Muktsar, Faridkot and Ferozepur during cotton season in 2007. Correlation coefficients were calculated between number of whitefly, jassid, tobacco caterpillar and meteorological parameters. The incidence of jassid and tobacco caterpillar was low as compared to whitefly in all the districts. All the meteorological factors contribute in determining the incidence of different pests, but rainfall has definitely negative impact on the jassid and whitefly population.

Keywords

• Bt-cotton
• pests population
• weather parameters