Abstract
An experiment was conducted to study the effect of abiotic factors on the populations of leaf miner, Liriomyza trifolii Burges on Tomato, (Solanum lycopersicum L.) during 2017 and 2018 at research farm of Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Chatha. The results of the investigation on population dynamics of leaf miner, L. trifolii in relation to abiotic factors of both the years revealed that the pest commenced from 10th standard week, which remained till 26th standard week with its peak activity during 15th standard week. The correlation studies indicated highly significant and positive association between population of leaf miner and maximum temperature (0.120**), while, significant and negative correlation with relative humidity evening (-0.488*) and rainfall (-0.538*). The overall impact of abiotic factors on population build-up of leaf miner was 80.30 per cent.
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