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PEST COMPLEX, SCREENING OF CULTIVARS AND EVALUATION OF NEW INSECTICIDE MOLECULES AGAINST MAJOR INSECT PESTS OF CAPSICUM SP

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Title PEST COMPLEX, SCREENING OF CULTIVARS AND EVALUATION OF NEW INSECTICIDE MOLECULES AGAINST MAJOR INSECT PESTS OF CAPSICUM SP
 
Creator ROOPA, M
 
Contributor ASHOK KUMAR, C T
 
Subject fruits, vegetables, planting, yields, biological development, lycopene, genetics, genes, thinning, harvesting
 
Description Investigations on the incidence, screening of capsicum accessions
against major insect pests and evaluation of new insecticide molecules
against fruit borer, Helicoverpa armigera (Hubner) and Scirtothrips
dorsalis Hood were conducted at Gandhi Krishi Vignana Kendra,
University of Agricultural Sciences, Bangalore during 2012. The study
indicated the incidence of 10 insect and mite pests; they were found
feeding or damaging the crop. Of which, S. dorsalis and H. armigera
caused serious damage. The peak incidence of S. dorsalis was observed
during 2nd, 3rd, 4th week of October and 3rd and 4th week of November.
The peak incidence of H. armigera was observed during last week of
October and first three weeks of November. Among nine accessions
screened against S. dorsalis and H. armigera an accession Orobelle
found to be promising one. Biochemical basis for resistance revealed
that the amount of total sugars and total protein were higher in
susceptible varieties. Higher amount of total phenol was observed in all
the resistant genotypes compared to susceptible varieties. Among the
insecticides evaluated for their bioefficacy revealed that the lowest fruit
borer population and highest per cent reduction was recorded in
Spinosad 45 SC @ 0.01%. Whereas, the lowest S. dorsalis populations
and highest per cent reduction was observed in Imidacloprid 17.8 SL @
0.005% and Spinosad 45 SC @ 0.01%. Spinosad was the best
insecticide in getting highest net profit and benefit cost ratio.
 
Date 2016-11-11T10:33:34Z
2016-11-11T10:33:34Z
2013-03-25
 
Type Thesis
 
Identifier Th-10483
http://krishikosh.egranth.ac.in/handle/1/85036
 
Language en
 
Format application/pdf
 
Publisher University of Agricultural Sciences, GKVK