ECO-FRIENDLY MANAGEMENT OF INSECT PESTS OF BROCCOLI

Abstract

Present work was carried out in the experimental field of Department of Entomology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh in order to assess the population abundance and eco-friendly management of insect pests of broccoli. The experiment was conducted in randomized complete block design (RCBD) with three replications. The treatments used in the experiment are Emamectin benzoate, Spinosad, Buprofezin, Imidacloprid, neem seed kernel extract, Lambda cyahlothrin and control (no pesticide). Four insect pests were found majorly in the broccoli field such as cabbage caterpillar, diamond back moth, cabbage aphid and flea beetle. Their peak population was recorded 1.98, 0.50, 238.62 and 2.98 per 5 plant at 51 st , 6 th , 7 th and 3 rd Standard week respectively. Among seven treatments, Emamectin benzoate observed the least number of population density the broccoli field. Population density of cabbage caterpillar, diamond back moth, cabbage aphid and flea beetle was 0.54, 0.16, 18.33 and 0.96 per plant whereas in all cases the highest population was recorded from the control treatment. Highest yield (23.14 ton/ha) of broccoli obtained from Emamectin benzoate So, Emamectin benzoate can be used as an eco-friendly agent in controlling insect pests of broccoli.