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Incidence of non-target pest species and validation of IPM strategies in Bt cotton hybrids deployed with different events of cry genes

Indian Agricultural Research Journals

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Title Incidence of non-target pest species and validation of IPM strategies in Bt cotton hybrids deployed with different events of cry genes
 
Creator KUMAR, RISHI
MONGA, D
NITHARWAL, MUKESH
SWAMI, DINESH
SINGH, SATNAM
 
Subject Bt cotton, cry genes, Events, Non-target pests
 
Description Cotton cultivars incorporated with different events of Cry proteins were evaluated for the incidence of sucking insect pests and abundance of predators under unprotected conditions during the years, 2009 and 2010. Among the sucking pests, whitefly, leafhopper and thrip were the major pests and there was no difference in the abundance of sucking pests among different hybrids. An integrated pest management (IPM) module based on use of eco-friendly strategies was developed and evaluated for transgenic cotton cultivars carrying different events including non-Bt cotton during 2010 and 2011 and was compared with the recommended regional package of practices (RPP) involvinguse of selective insecticides for sucking insect pests and bollworms. Results indicated low population of leafhopper,thrips and whitefly in IPM as compared to RPP. In addition, the cotton hybrids managed by IPM practices supported higher abundance of natural enemies. The incidence of cotton leaf curl disease (CLCuD) was also less in IPM as compared to RPP module. No bollworm incidence was recorded in any of transgenic cotton hybrid in either of the modules; however IPM and RPP with non-Bt hybrid showed rosette flowers and green boll damage due to pink bollworm, which was less in IPM as compared to RPP. IPM module resulted in low cost of insecticidal sprays and increase in C: B ratio compared to RPP. Furthermore, as the hybrids carrying different events did not differ significantly for the incidence of sucking pests, the IPM module developed was found effective for all hybrids including non Bt cotton hybrid with some revision in the light of bollworm incidence.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2015-11-19
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/53695
 
Source The Indian Journal of Agricultural Sciences; Vol 85, No 11 (2015)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/53695/22751
 
Rights Copyright (c) 2015 The Indian Journal of Agricultural Sciences