Abstract
An experiment was conducted during 2018 and 2019 to find out the influence of abiotic factors (temperature, relative humidity and rainfall) on the population of two major insect pests in chilli crop; thrips, Scirtothrips dorsalis and mite, Polyphagotarsonemus latus. Results exhibited the peak activity of thrips during 21st to 25th SMW in 2018 and 40th to 42nd SMW in 2019. Highest population of mite was recorded during 44th to 45th SMW in 2018 and 38th to 39th SMWin 2019. Both thrips and mite populations exhibited negative correlation with rainfall (r = -0.349 and -0.357 in 2018; -0.571 and -0.292 in 2019). Thrips showed positive correlation with mean temperature (r = 0.622, 0.398), while negative with mean relative humidity (r = -0.5470, -0.5710) during both years. Chilli mite has showed opposite correlation to the thrips as negatively correlated with mean temperature (r = -0.804 and -0.4890) and positive with average humidity (r = 0.4920 and 0.3750) during 2018 and 2019.
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