Relationship of abiotic factors and the copiousness of larval parasitoid, Campoletis chlorideae on pod borer, Helicoverpa armigera under sole and chickpea-coriander ecosystem at Pantnagar, Uttarakhand

Jaba, J and Agnihotri, M (2018) Relationship of abiotic factors and the copiousness of larval parasitoid, Campoletis chlorideae on pod borer, Helicoverpa armigera under sole and chickpea-coriander ecosystem at Pantnagar, Uttarakhand. Journal of Entomology and Zoology Studies, 6 (6). pp. 316-319. ISSN 2349-6800

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Abstract

The pod borer, Helicoverpa armigera is a conundrum pest of chickpea in Uttarakhand, India. One of the best ways to overcome the attack of this pest is to destroy its initial stage of the life cycle by larval endo parasitoid Campoletis chlorideae. The seasonal incidence and simple statistical tool were used for studying the relationship between percent parasitization and weather parameters in sole and chickpea‐coriander intercropping systems. The results revealed that in both cropping systems higher parasitism were recorded on 11th Standard Week (March) in both consecutive years. In sole crop, parasitism of 76.67% and 60.67%; and in intercropping system higher parasitism were recorded with 90%; 80% for respective years. A correlation with abiotic factors revealed a non-significant positive correlation with maximum temperature, evening relative humidity (RH), rain fall and sunshine hours. There was negative correlation observed with minimum temperature and morning RH in respective years under sole crop. In case of intercropping system, the result elucidated that a significant positive correlation was observed with evening RH and rainfall (r= 0.951*; r= 0.900* and r= 0.926*; r= 0.931*) in respective years under intercropping system.

Item Type: Article
Divisions: Research Program : Asia
CRP: UNSPECIFIED
Uncontrolled Keywords: Campoletis chlorideae, correlation, temperature and relative humidity, Helicoverpa armigera, Uttarakhand, intercropping system, Chickpea, coriander, intercropping system
Subjects: Others > Intercropping
Others > Pest Management
Others > Helicoverpa
Mandate crops > Chickpea
Depositing User: Mr Ramesh K
Date Deposited: 22 Nov 2018 08:23
Last Modified: 22 Nov 2018 08:23
URI: http://oar.icrisat.org/id/eprint/10960
Official URL:
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
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