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Incidence, varietal preference and control of fruit borer, Conopomorpha cramerella ( Lepidoptera: Gracillariidae) on litchi (Litchi chinensis) in Himachal Pradesh

Indian Agricultural Research Journals

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Title Incidence, varietal preference and control of fruit borer, Conopomorpha cramerella ( Lepidoptera: Gracillariidae) on litchi (Litchi chinensis) in Himachal Pradesh
 
Creator BHATIA, RANJEET
SHARMA, RAVINDER
AGNIHOTRI, R P
 
Subject incidence, varietal preference, control, litchi fruit borer, Conopomorpha cramerella, benefit: cost ratio
 
Description In a two year study conducted during 1996 and 1997 on the occurrence of litchi fruit borer, Conopomorpha cramerellaSnell. in 8 different blocks of district Kangra, it was observed that pest attack varied between 13.6 and 64.9%.  Incidence of the borer on 9 cultivars indicated maximum attack on 'Mclean' (85.7%) while 'Seedless Early' had minimum  incidence(33.3%) of the pest. The information on the borer control using 6 different insecticides revealed that the highestefficacy was obtained by using monacrotophos (@0.036% and 0.072%) and cypermethrin (@0.01 and 0.02%) during both the years.  The benefit: cost analysis indicated that delayed single spray (15 days before harvest) with endosulphan 0.05%, monocrotophos 0.036%, methyl parathion 0.05% and cypermethrin 0.01% resulted in high returns with a ratio of 1 :35.9, 1 :35.7, 1 :35.1 and 1 :33.5 respectively. Methyl demeton proved to be the least effective insecticide.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-03-14
 
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/28255
 
Source The Indian Journal of Agricultural Sciences; Vol 70, No 5 (2000)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/28255/12842
 
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