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Pesticide Research Journal
Year : 2010, Volume : 22, Issue : 1
First page : ( 35) Last page : ( 38)
Print ISSN : 0970-6763.

Field Evaluation of Pyridalyl against Tobacco Caterpillar, Spodoptera litura (Fab.) (Lepidoptera: Noctuidae) on Bt Cotton

Dhawan AK1,,*, Singh Ravinder2, Shera PS1, Aneja Anand1

1Department of Entomology, Punjab Agricultural University, Ludhiana, 141004, Punjab, India

2Department of Plant Breeding & Genetics, Punjab Agricultural University, Ludhiana, 141004, Punjab, India

*Corresponding author ashokdhawan@yahoo.com

Received:  02  February,  2010; Accepted:  05  May,  2010.

Pyridalyl was evaluated @ 50, 75 and 100 g a.i. ha−1 for the control of Spodoptera litura (Fab.) in 5 different experiments at farmers’ field on Bt cotton during 2005 to 2007 crop seasons along with thiodicarb @ 468.75 g a.i. ha−1 and quinalphos @ 500 g a.i. ha−1 as standard checks and untreated control. Based on the mean data of three years, pyridalyl @ 75 g a.i. ha−1 rendered effective control of S. litura on Bt cotton resulting in 84.2 and 90.2% reduction in larval population over untreated control after 1st spray and 2nd spray, respectively. Seed cotton yield was also significantly higher in this treatment (24.83 q ha−1) as compared to standard checks and untreated control.

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Keywords

Pyridalyl, Spodoptera litura, Bt cotton.

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