Author(s):

Aditi Charak, Devinder Sharma and Mangla Ram Bajiya

Abstract: The present study provides the observations obtained from the field experiment on the effect of weather factors on the population dynamics of litchi leaf roller Platypeplus aprobola carried out in 2018-19 at the State Horticulture Nursery, Department of Horticulture, Jammu, J&K. The results revealed that peak activity of leaf roller (Platypeplus aprobola) was observed from September I^st fortnight (50.74%) to October II^nd fortnight (54.97%). The correlation and regression studies showed positive influence with weather factors like average temperature, average relative humidity, sunshine hours and average rainfall and negative influence of average wind velocity with leaf roller incidence.

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