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VOL. 7, ISSUE 8 (2022)
Identification of sources of resistance in cowpea germplasm against Aphids, Aphis craccivora (Koch) and Legume pod borer, Maruca vitrata (Fabricius)
Authors
Aarthi S, Selvanarayanan V
Abstract
Cowpea cultivation is hampered by various insect pests, among which the aphids, Aphis craccivora (Koch) and legume pod borer, Maruca vitrata (Fabricius) are most predominant and also cause significant yield loss. Among the various management strategies, exploring and exploiting the resistance available in cowpea germplasm is an eco-friendly and effective approach to manage such insect pests. Considering the above, to identify the resistant sources in cowpea germplasm against A. craccivora and M. vitrata, ten genotypes selected from preliminary evaluations were screened under field condition in the Department of Entomology, Faculty of Agriculture, Annamalai University, Annamalainagar, Chidambaram, India. The results obtained from this study showed that, the mean infestation index of aphids was the lowest on EC-724316 followed by EC-107183 and the highest on EC-98442-II. Percent pod damage caused by legume pod borer was the least on IC-39870 which was followed by IC-52118, in contrast to the highest pod damage noted on EC-161916. The genotypes EC-724316 and IC-39870 were selected respectively for further evaluation against aphids and legume pod borer to develop desirable varieties.
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Pages:58-60
How to cite this article:
Aarthi S, Selvanarayanan V "Identification of sources of resistance in cowpea germplasm against Aphids, <em>Aphis craccivora</em> (Koch) and Legume pod borer, <em>Maruca vitrata</em> (Fabricius)". International Journal of Entomology Research, Vol 7, Issue 8, 2022, Pages 58-60
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