1Department of Entomology, Rajendra Agricultural University, Pusa, Samastipur - 848 125
2Bhagalpur Agricultural College, Sabour, Bhagalpur - 813 210, India
The present investigation was carried out to evaluate the bio-efficacy of beta-cyfluthrin, lambda-cyhalothrin and imidacloprid against shoot and fruit borer (Earias vitella) in okra (Abelmoschus esculentus L.). All the insecticides recorded reasonably less shoot and fruit damage due to E. vitella in okra in comparison to untreated control. Lambda-cyhalothrin @ 30g a.i.ha−1 was significantly superior to all other treatments and on par with endosulfan @500 g a.i. ha−1 Maximum net benefit (Rs.7018 ha−1) was obtained with lambda-cyhalothrin (30g a.i.ha−1). In terms of incremental cost-benefit ratio (ICBR), lambda-cyhalothrin treatment @15g a.i. ha−1 recorded maximum cost-benefit ratio of 1:4.73 as compared to other treatments.
Abelmoschus esculentus, Beta-cyfluthrin, Earias vitella, Lambda-cyhalothrin
