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SCREENING OF PROMISING GROUNDNUT GENOTYPES TO INSECT PEST COMPLEX AND THEIR MANAGEMENT WITH CERTAIN INSECTICIDES

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Title SCREENING OF PROMISING GROUNDNUT GENOTYPES TO INSECT PEST COMPLEX AND THEIR MANAGEMENT WITH CERTAIN INSECTICIDES
 
Creator KRISHNAIAH, M
 
Contributor MANJULA, K
 
Subject genotypes, groundnuts, planting, animal developmental stages, insecticides, inorganic acid salts, fruits, diseases, monocrotophos, sowing
INSECTICIDES, INSECT PEST,
 
Description Thirty two genotypes of groundnut were grown and their reaction to insect pest complex was studied during rabi 2010. ICG (FDRS-79) and Bheema hosted lowest mean larval population of S.litura and H.armigera. Based on leaf damage, ICG (FDRS-79), Bheema and TCGS-901(A) are considered as moderately resistant cultures to S.litura. H.armigera incidence is very less in the season and hence the damage levels are not used for categorization of genotypes. TCGS-647 recorded lowest thrips population followed by TPT-4. All the 32 genotypes were found to be either moderately susceptible or susceptible to thrips attack. Leaflet length and width were positively correlated with defoliators incidence and negatively associated with thrips incidence.
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Out of 7 insecticides tested, chlorfenapyr (0.02%) was superior over others especially against S.litura. Thiodicarb (0.075%), emamectin benzoate (0.005%) and flubendiamide (0.004%) also provided considerable suppression of caterpillars over control. Imidacloprid (0.05%) and dimethoate (0.05%) were found effective for management of thrips. Monocrotophos (0.07%) gave average control (60-70% reduction over control) of all the three pests. Thiodicarb (0.075%) and flubendiamide (0.004%) were not that effective against thrips.
 
Date 2016-06-04T14:28:49Z
2016-06-04T14:28:49Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66782
 
Language en
 
Relation D8995;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY