Life cycle of Brevipalpus deleoni Pritchard & Baker on Basak (Adathoda vasica) at combination of  different temperature and RH

SALIL KUMAR GUPTA; DEBALINA MANDAL

Volume : IV, Issue : VIII, August - 2015

Life cycle of Brevipalpus deleoni Pritchard & Baker on Basak (Adathoda vasica) at combination of different temperature and RH

Salil Kumar Gupta, Debalina Mandal

Abstract :

The present paper reports the life cycle of Brevipalpus deleoni Pritchard & Baker at three constant temperatures viz 20 � 10C,25� 10C and 30 � 10C along with 3 constant relative humidities like 50 � 3%,70 � 3% and 90 � 3% RH.The duration of different developmental stage, total life cycle,pre-oviposition,oviposition,post-oviposition periods,fecundity,viability of eggs etc. at varying temperatures and humidities have been discussed.The total lifecycle depended more on humidity and less on temperature as because the total period increased with increase in humidity.The duration was longest at 90 � 3% RH and lowest at 50 � 3% RH.Highest fecundity was at 25 � 10C and 70 � 3% RH.