Influence of Weather Parameters on the Incidence of Serpentine leaf miner, Liriomyza trifolii (Burgess) on Tomato

The present investigation was carried out to study the seasonal abundance of Serpentine leaf miner, Liriomyza trifolii on tomato during 2017-18. Leaf miner reached peak during December to January and declined thereafter. Correlation studies revealed that, no. of mines, leaf infestation and no. of larvae were negatively correlated with minimum temperature (-0.61**), evening relative humidity (-0.34*), morning vapor pressure -0.55*, evening vapor pressure -0.52*, maximum temperature-0.57*, sunshine hours -0.52* and evaporation -0.58**, temperature and evening relative humidity. Whereas, leaf infestation per cent is positively correlated with evaporation (0.71**) and influenced the leaf miner population by 51 per cent.