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Differential susceptibility of field population of gram Podborer (Helicoverpa armigera) to insecticides in Tamil Nadu

Indian Agricultural Research Journals

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Title Differential susceptibility of field population of gram Podborer (Helicoverpa armigera) to insecticides in Tamil Nadu
 
Creator MANOHARAN, T
UTHAMASAMY, S
 
Subject —
 
Description An experiment was conducted during 1990-91 to study the susceptibility of gram podborer [Helicoverpa armigera (llubner)] to 4 insectcides. Tbeir reaction to field populations of gram podborer from 3 areas in Tamil Nadu growing upland cotton (Gossypium hirsutun L) and gram (Cicer arielinum L.) was studied. The populations from field at Udumalpet, Andipatti and Coimbatore recorded higher LD50M (10.6-31.24) to all the insecticides, followed by those from Andipatti and Coimbatore. Differences in LD50 values within population were noticed for individual insecticides. The differential susceptibility of these field-collected population may be attributed to frequent application of insecticides, leading to the development of resistance.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-04-16
 
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/29058
 
Source The Indian Journal of Agricultural Sciences; Vol 64, No 2 (1994)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29058/13144
 
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