Vol. 2 (1) : January-February 2011 issue
Green Farming Vol. 2 (1) : 85-86 (January-February, 2011) (New Series)
Bioefficacy of rynaxypyr (Coragen) 20 SC against fruit borer Helicoverpa armigera(H.) in okra
L. RAJESH CHOWDARYa1*, M.BHEEMANNAa2, A.C. HOSAMANIa3 and L. RANJITH KUMARb4
aDeptt. of Agricul.Entomology, UAS, Raichur - 584 101, bDeptt. of Agric. Entomology, Univ. of Agirc. Sci., Dharwad - 580 005 (K.K.)
Designation : 1M.Sc. (Agri) Student, 2Associate Professor, /3Associate Professor, 4Ph.D Scholar *Correspondence
Subject : Entomology
Paper No. :
Total Pages : 2
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Revised accepted :
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Citation :
L. RAJESH CHOWDARY, M. BHEEMANNA, A.C. HOSAMANI and L. RANJITH KUMAR. 2011. Bioefficacy of rynaxypyr (Coragen) 20 SC against fruit borer Helicoverpa armigera (H.) in okra. Green Farming Vol. 2 (1) : 85-86 (January-February, 2011) (New Series)
ABSTRACT
Rynaxypyr (Coragen) 20 SC, a new insecticide was evaluated against okra fruit borer Helicoverpa armigera (Hubner) during 2009-2010 at Main Agricultural Research Station, Univ. of Agric. Sci, Raichur, Karnataka. The experiment was laid out in RBD with three replications. Among the newer insecticide molecules evaluated, rynaxypyr 20 SC @ 30 g a.i. /ha and rynaxypyr 20 SC @ 20 g a.i. /ha were superior in recording less larval populations, lower fruit damage and higher fruit yield, followed by spinosad @ 56 g.a.i/ha, emamectin benzoate @15 g.a.i/ha and flubendiamide @ 45 g.a.i/ha.
Key words :
Fruit borer, Helicoverpa armigera, okra, rynaxypyr (Coragen).
