Evaluation of Biological Approaches for Controlling Shoot and Fruit Borer (Earias vitella F.) of Okra Grown in Peri-Urban Area in Bangladesh

Irrational applications of insecticides on vegetable crops are very common in Bangladesh, resulting harmful consequences for the environment and human health. Therefore, a study was conducted to evaluate efficacy biological botanical okra shoot fruit borer grown open fields. Four were used this study, namely Bacillus thuringiensis (Bt), Spinosad 45 SC, Abamectin 1.8 EC, Azadirachtin 1% EC an untreated control. The experiment randomized complete block design (RCBD) with three replications. results showed that rate infestation lowest Spinosad-treated plot (3.80%), highest control (20.67%). (3.56%) recorded treated Spinosad. reduction over 80.69, 60.14, 56.45, 55.58% plots Spinosad, Bt, Azadirachtin, Abamectin, respectively. Consequently, attained yield (8.65 t ha−1), which followed by (6.74 Bt (6.28 (6.12 ha−1). net return benefit–cost ratio (BCR) 542.36 US$ 2.64, obtained respectively from plot. second BCR (1.70) Azadiratin-treated plot, (1.18) Abamectin-treated studied insect management practices could be incorporated attain higher yields economic benefits growing Bangladesh.