Studies on population dynamics of major pests of chilli and its correlation with weather parameter

Results revealed that the incidence of thrips, whitefly started from 35^th meterological week. Incidence of mites started from 36^th meterological week. The maximum thrips, whitefly, mites population were recorded during 42^th meterological week. The population of thrips, White fly and Mites were positively correlated with bright sunshine and significant and negatively significant with minimum temperature, morning and evening relative humidity. The correlation between maximum temperature and mite population was positive and non-significant. The correlation of minimum temperature, morning and evening relative humidity with mite population was negative and non-significant. The rainfall was negatively correlated and significant and bright sunshine positively significant with mite population. The simple regression equations worked out for maximum temperature and bright sunshine were positive with and increase of 0.1 and 0.0342 per unit, respectively and to that of rainfall was negative with a decrease of 0.038 per unit. The impact of minimum temperature, morning and evening relative humidity were non-significant. The simple regression equations worked out were negative for evening relative humidity and rainfall with a decrease of 0.035 and 0.048 per unit, respectively and was positive for bright sunshine with a rise of 0.303 per unit. The impact of maximum temperature, minimum temperature and morning relative humidity was non-significant.