author(s)
A Jawahar reddy, Dr. YS Saindane, Dr. RV Datkhile and Dr. BV Deore

abstract
The studies on seasonal incidence of grape thrips, Rhipiphorothrips cruentatus Hood (Thripidae: Thysanoptera) were carried out at All India Co-ordinated Research Project (AICRP) on Fruits, Department of Horticulture, MPKV., Rahuri, during 2017-18. The studies on seasonal incidence revealed that the incidence of active stages both nymphs and adults started appearing from November 1^st week (7.88/shoot) when new flush started after fruit or forward pruning in October, 2017. The population gradually increased and peak incidence was observed from second week of December (50^thstandard meteorological week) i.e., (8.28/shoot) to second week of January (2^ndstandard meteorological week) i.e., (8.53/shoot). The higher incidence of thrips was coincided with the flowering stage of grape vine. The linear correlation studies revealed that the weather parameters viz., maximum (r = -0.558) and minimum temperatures (r = -0.419) are significantly negative correlated with thrips incidence. Whereas, it had significant positive correlation with both morning (r = 0.474) and evening relative humidity (r = 0.233).While all other weather parameters such as rainfall (r = 0.092^NS), sunshine (r = -0.094^NS) and wind velocity (r = -0.130^NS) have not shown any significant relationship with population of thrips.