Seasonal abundance of Campoletis chlorideae Uchida (Hymenoptera:Ichneumonidae), A larval parasitoid of Helicoverpa armigera (Hubner) hardwick in chickpea 

DOI: 10.18805/lr.v39i4.11260    | Article Id: LR-3390 | Page : 643-647
Citation :- Seasonal abundance of Campoletis chlorideae Uchida (Hymenoptera:Ichneumonidae), A larval parasitoid of Helicoverpa armigera(Hubner) hardwick in chickpea .Legume Research-An International Journal.2016.(39):643-647

A. Kuzhandhaivel Pillai*, S. Selvaraj and Meena Agnihotri 

kuzhandhai635@gmail.com
Address :

Department of Entomology, G. B. Pant University of Agriculture and Technology, Pantnagar-263 145, India.

Submitted Date : 10-12-2014
Accepted Date : 13-05-2016

Abstract

Climate change is likely to affect the insect host and the activity and abundance of biological control agents. Therefore, the present studies were conducted to understand the seasonal abundance of larval parasitoid, Campoletis chlorideae on chickpea at Pantnagar during the cropping season 2010-11 and 2011-12 revealed that the larval parasitoid exhibited its marked first appearance in 3rd standard meteorological week (SMW) and attained peak population in 7th (85.80%) and 8th (87.65%) SMW, respectively. Statistical analysis between the weather parameters and the population of the larval parasitoid showed a significant negative correlation with maximum temperature (r= - 0.698* and r= - 0.705*) and minimum temperature (r= - 0.706* and r= - 0.790*) whereas significant positive correlation with maximum relative humidity (r= 0.800** and r = 0.824**) and minimum relative humidity (r= 0.636* and r= 0.254) during 2010-11 and 2011-12, respectively. The results indicated that changes in weather factors as a result of climate change would have considerable influence on survival and development of C.chlorideae. 

Keywords

Campoletis chlorideae Chickpea Helicoverpa armigera Parasitization.

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