Madras Agricultural Journal
Loading.. Please wait
Research Article | Open Access | Peer Review

Survey and monitoring the incidence of pests of castor

Volume : 94
Issue: Jan-jun
Pages: 133 - 135
Published: May 05, 2023
Download

Abstract


Castor, Ricinus communis Linn, is an important non-edible oilseed crop, widely grown under rainfed conditions. In Tamil Nadu, the castor hybrid, TMVCH 1 and TMV 6 are widely grown as pure crop during kharif in districts viz., Salem, Erode, Namakkal and Dharmapuri due to their high seed and oil yield and heavy demand for castor oil in many industries. Castor crop cultivation has attained a momentum to become as a cash crop and intensive cultivation with hybrid castor TMVCH 1 has picked up under irrigated and rainfed conditions in Tamil Nadu. Castor cultivation is constrained by more than 60 insect pests through out the crop period (Rai, 1976) resulted in heavy yield loss. Among them the castor capsule borer, Dichocrocis punctiferalis and the leaf eating caterpillars, especially, the semilooper, Achaea janata, tobacco caterpillar, Spodoptera litura, the occasional pest slug caterpillar, Parasa lepida and jassids are causing a considerable damage and reducing the yield (Lakshminarayana and Raoof, 2005). Extensive survey and monitoring of pest incidence on castor throughout the crop period over several years is essential to know the seasonal occurrence of castor pests, their peak incidence, nature of damage, and occurrence of natural enemies. These informations are useful to find the vulnerable stage of the pest for taking control measures and to formulate the effective management practices. Hence, the present study was conducted to make survey and to monitor the incidence of major pests of castor

DOI
Pages
133 - 135
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


Ricinus communis Kharif
footer

Copyright © Madras Agricultural Journal | Masu Journal All rights reserved.