Vol. 10, Issue 9 (2021)

Author(s):
VT Shinde, ST Aghav, CS Chaudhari and CS Patil

Abstract:
The present study entitled, seasonal incidence of red spider mite, Tetranychus urticae Koch on brinjal Solanum melongena Linnaeus was carried out during rabi 2020-2021. During the seasonal incidence study, mite incidence was noticed in 1^st standard metrological week (0.45 mites/ sq.cm/leaf). Highest mites population found in 3^rd week of April i.e. 16^th standard metrological week with 15.44 mite per 1 cm² leaf area. Highly significant positive correlation was noticed between incidence of mites and maximum temperature (r = 0.851**) and minimum temperature (r = 0.636**). However, highly significant negative correlation was noticed between mite incidence and morning relative humidity (r = -0.951**) as well as evening relative humidity (r = -0.861**). The correlation coefficient showed significant positive relation between mites population and bright sunshine hours (r = 0.572*) whereas, significant negative correlation was noticed between mite population and rainfall (r = -0.491*).