Bioefficacy of new ready mixed insecticide (novaluron 5.25% + indoxacarb 4.5%SC) against pigeon pea pod borer (Helicoverpa armigera Hubner) 

DOI: 10.18805/lr.v39i1.8877    | Article Id: LR-3243 | Page : 135-139
Citation :- Bioefficacy of new ready mixed insecticide (novaluron 5.25% + indoxacarb 4.5%SC) against pigeon pea pod borer (Helicoverpa armigera Hubner) .Legume Research-An International Journal.2016.(39):135-139

A. Ghosal*, A.K. Dolai and M.L. Chatterjee

abhijishu@gmail.com
Address :

College of Agriculture, BCKV, Mohanpur, Nadia-741 101, West Bengal, India.

Abstract

The effect of different treatment schedules of Novaluron 5.25% + Indoxacarb 4.5% SC against pod borer of pigeon pea gave superlative effect over the sole insecticide Novaluron & Indoxacarb & standard check Lamda-cyhalothrin; though, all the treated plots with chemicals were significantly superior in their performance over that of control plots. Among the three selected dose of Novaluron 5.25% + Indoxacarb 4.5% SC (750, 825, 875 ml ha-1); the said chemical @ 875 ml ha-1 was recorded as best in managing Helicoverpa armigera population up to harvesting period (mean 0.03% infested pod of both years), while, @ 825 ml ha-1 also recorded remarkable effect on the target pest. The maximum yield (23.40 q ha-1) was obtained from the plots treated with Novaluron 5.25% + Indoxacarb 4.5% SC @ 875 ml ha-1 closely followed by @ 825 ml ha-1 (22.98 q ha-1). The yield increase was also of high order. Highest cost-benefit ratio (2.07) was recorded in Novaluron 5.25% + Indoxacarb 4.5% SC @ 825 ml ha-1 closely followed by @ 875 ml ha-1. 

Keywords

Helicoverpa armigera Novaluron 5.25% + Indoxacarb 4.5% SC Pigeon pea.

References

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