Madras Agricultural Journal
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Research Article | Open Access | Peer Review

Field Screening of Promising Castor Cultures against Capsule Borer, Conogethes punctiferalis and Leafhopper, Empoasca flavescens

Volume : 98
Issue: Apr-jun
Pages: 178 - 179
Published: May 17, 2023
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Abstract


Studies were carried out on castor at Tapioca and Castor Research Station, Yethapur, Salem District, Tamil Nadu to find out the resistant sources against capsule borer and leafhoppers Among the eight entries screened, capsule damage ranged from 0 to 11.5 % in the primary spikes as against 35.7 % in the check TMVCH 1. The damage ranged from 0 to 10.8 % in the secondary spikes as against 26.7 % in the check. Maximum capsule damage was observed in RG 3089 (11.5 and 10.8 % in the primary and secondary spikes, respectively), followed by RG 2813, which recorded 5.4 and 6.2 % capsule damage in the primary and secondary spikes, respectively. RG 2770, RG 2776, RG 2778 and RG 2849 were completely free from capsule borer damage.

DOI
Pages
178 - 179
Creative Commons
Copyright
© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

Keywords


Castor screening capsule borer leafhoppers plant characters
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