Efficacy of Selected Biopesticides against Mustard Aphid, Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae)
Dayana Ramesh Mushinamwar *
Department of Entomology, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
Usha Yadav
Department of Entomology, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
Biradar Bilal Gafar
Department of Entomology, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
Sakshi Rajawat
Department of Entomology, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
*Author to whom correspondence should be addressed.
Abstract
The present experiment was carried out at Central Research Farm, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, during Rabi season of the year 2023-2024under Randomized Block Design (RBD) with eight treatments and three replications. Single spray Twosprays were undertaken at fourteen days interval. Neem oil 5 %, imidacloprid 17.8 SL, Beauveria bassiana 1.15 % WP, Nisco Sixer plus, Metarhizum anisopliae, spinosad + neem oil 5 %, spinosad 45% SC were the treatments tested against the mustard aphid, Lipaphis erysimi (Kalt.). Results show that imidacloprid 17.8% SL was significantly superior over the other treatments showing 30.08/top 10cm twig and Beauveria bassiana being least effective recorded the highest number of aphids of 69.53/top 10cm twig of plant. The highest yield and cost benefit ratio was recorded from the plots treated with imidacloprid 17.8% SL (18.5 q/ha and 1:5.19) and the lowest from Beauveria bassiana (12.55 q/ha and 1:3.43).
Keywords: Biopesticides, imidacloprid, Lipaphis erysimi, mustard aphid