Vol. 9, Issue 5 (2021)
Evaluation of HaNPV against Helicoverpa armigera in chickpea
Author(s): PG Surya, HR Sawai, RB Kothikar and MJ Patil
Abstract: The research experiment was carried out at Insectary Field of Agril. Entomology Section, College of Agriculture, Nagpur during Rabi-2015 to evaluate the various HaNPV concentrations in combination with Neem and Quinolphos against Helicoverpa armigera on chickpea with nine treatments replicated thrice in Randomized Block Design. Results revealed that, treatment T6- HaNPV @ 500 LE ha-1 + Quinolphos 25 EC @ 0.05 per cent was found most superior amongst all the treatments and recorded 0.22 L mrl-1 lowest larval population of H. armigera at 14 DAS of second spraying with minimum pod damage of 10.35 per cent and produced highest grain yield 18.30 q ha-1 of chickpea. Second best treatment was T5- HaNPV 400 LE ha-1 + Neem seed extract 5 per cent and found at par with T6. The maximum larval population (1.80 L mrl-1) with highest pod damage (24.15%) and lowest grain yield (8.14 q ha-1) was recorded in control. The highest Incremental Cost Benefit Ratio of 11.94 was recorded with the treatment T8- Quinolphos 25 EC @ 0.05 per cent followed by T7- Neem seed extract 5 per cent + Quinolphos 25 EC @ 0.05 per cent (9.94). Thus, there is possibility of alternating HaNPV with chemical insecticides for the effective management of pod borer H. armigera in chickpea.
Pages: 23-26 | 413 Views 28 Downloads
How to cite this article:
PG Surya, HR Sawai, RB Kothikar, MJ Patil. Evaluation of HaNPV against Helicoverpa armigera in chickpea. Int J Chem Stud 2021;9(5):23-26.