Global Journal of Biology, Agriculture & Health Sciences

Abstract

FIELD LIFE TABLE STUDIES OF SPODOPTERA LITURA (F.) INFESTING SUNFLOWER IN BENGALURU CONDITIONS, KARNATAKA, INDIA

GEETHA S, JAGADISH KS

Field life table studies of Spodoptera litura (F.) infesting sunflower were undertaken during 2012-13 at Zonal Agricultural Research Station, UAS, Bengaluru. The age specific life table for S. litura (F.) on sunflower revealed that the late stage (fourth and fifth instar) larvae were more vulnerable to natural mortality factors and totally 88.01 per cent mortality recorded in this study. Totaly14 mortality factors were identified in S. litura on sunflower during the study period number of larvae dead due to NPV was maximum and it is contributing higher ‘k’ value. The highest ‘k’ value was observed in late larval stage.

Published Date: 2014-10-09;