http://localhost:8080/handle/123456789/5306 Sat, 18 Apr 2026 16:15:59 GMT 2026-04-18T16:15:59Z http://localhost:8080/handle/123456789/5330 EVALUATION OF DIFFERENT ECO-FRIENDLY MANAGEMENT PRACTICES AGAINST FRUIT FLY OF BOTTLE GOURD AKTER, SHARMIN The study was conducted in the experimental field of Sher-e-Bangla Agricultural University , Dhaka during the period from October, 2021 to April, 2022 to find out the evaluation of different eco-friendly management practices against fruit fly of bottle gourd . The experiment was laid out in a Randomized Complete Block Design replicated with three replications. In this study, treatments T 1 ii = Using pheromone trap; T 2 = Using bait trap with banana mashed at 5 days interval; T 3 = Using bait trap with sweet gourd mashed at 5 days interval; T 4 = Using pheromone trap + Using bait trap with banana mashed at 5 days interval; T 5 = Using pheromone trap + Using bait trap with sweet gourd mashed at 5 days interval; and T 6 = Untreated control where nothing were applied. T 5 showed the best performance in terms of number of fruit fly (4.09 adult) captured, percent reduction of fruit infestation by number over control at early (84.50%), mid (77.68%) and late (76.57%) fruiting stages; percent reduction of fruit infestation by weight over control at early (75.43%), mid (72.05%) and late (64.17%) fruiting stages; fruit length (54.87cm), fruit girth (24.37cm), single fruit weight (2.59kg) and yield (71.37t/ha) . The overall study revealed that, the most significant performance was achieved from T 5 treatment (Using pheromone trap + Using bait trap with sweet gourd mashed at 5 days interval) which contributed to highest control of cucurbit fruit fly as well as the maximum increase of healthy fruit length, girth and the yield. A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN ENTOMOLOGY Sat, 01 Jan 2022 00:00:00 GMT http://localhost:8080/handle/123456789/5330 2022-01-01T00:00:00Z http://localhost:8080/handle/123456789/5329 EFFICACY OF BIO-RATIONAL INSECTICIDES IN CONTROLLING THRIPS IN SUMMER COUNTRY BEAN BEGUM, MOST. SUKHY The experiment was conducted at the central farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, Bangladesh to study the efficacy of biorational insecticides in controlling thrips country bean in summer. The experiment consists of the following management practices: T 1 =Spraying Neem oil @3 ml/L of water at 7 days interval, T 2 =Spraying Neem leaf extract @200mg/L of water at 7 days interval, T 3 = Mehgoni leaf extract@200mg/L of water at 7 days interval, T 4 =Tobacco leaf powder@30mg/L of water at 7 days interval, T 5 = Spraying Spinosad @0.4ml/L of water at 7 days interval, T 6 =Spraying Biotrin@1.4ml/L of water at 7 days interval and T 7 = Untreated control. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data on number of thrips as insect pest, plant, leaf, inflorescence and pod infestation, different yield contributing characters and yield of summer country bean were observed. Among the seven (7) treatments the lowest number of thrips (2.50 plant ii -1 ) was observed in T 5 (Spraying Spinosad @0.4ml/L of water at 7 days interval), while highest number of thrips (16.67 plant -1 ) was observed in T 7 (Untreated control). The highest percentage of thrips reduction over control (85.50%) was observed in T 5 (Spraying Spinosad @0.4ml/L of water at 7 days interval) treatment. The present study revealed that the lowest number of thrips as insect pest and increased plant, leaf, inflorescence and pod infestation, different yield contributing characters and yield of country bean might be obtained by using the treatment T 5 (Spraying Spinosad @0.4ml/L of water at 7 days interval) besides T 6 (Spraying Biotrin@1.4ml/L of water at 7 days interval) performed as second best treatment whereas, T 7 (Control) and T 3 (Mehgoni leaf extract@200mg/L of water at 7 days interval) may protect the country bean at lowest rate in summer. The highest (3.08) benefit cost ratio was obtained due to application of T 5 (Spraying Spinosad @ 0.4ml/L of water at 7 days interval) while the lowest (2.26) in T 7 (control). A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN ENTOMOLOGY Sat, 01 Jan 2022 00:00:00 GMT http://localhost:8080/handle/123456789/5329 2022-01-01T00:00:00Z http://localhost:8080/handle/123456789/5328 ECO-FRIENDLY MANAGEMENT OF FRUIT FLY INFESTING CUCUMBER MOMOTAJ, AFRINA An experiment was conducted in the research field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, from October 2021 to January 2022 to evaluate eco-friendly management of fruit fly infesting cucumber. There were several insect pests in the cucumber field that could bring about a significant impact on the yield and quality of the cucumber itself and among them, fruit fly is the most prevalent and harmful. The experiment was laid out in Randomized Complete Block Design and replicated 3 times. For this study, 8 treatments were used and these were T 1 : using Pheromone trap @1 trap/plot/2 weeks; T 2 : using Poison bait trap @ 1 trap/plot; T 3 : using Pheromone trap @1 trap/plot/2 weeks + Using Poison bait trap @ 1 trap/plot; T 4 : spraying Neem oil @ 3ml/L of water at 7 days interval; T 5 : spraying garlic extract @ 3ml/L of water at 7 days interval; T 6 : spraying Neem seed kenrnel extract @ 3g/L of water at 7 days interval; T 7 : using Pheromone trap @1 trap/plot/2 weeks + Spraying Neem oil @ 3ml/L of water at 7 days interval; T 8 : untreated control. Local variety ‘Baromashi’ was used as the experimental material. The lowest fruit infestation by number at early, mid & late fruiting stage, fruit infestation by weight at early, mid & late fruiting stage were recorded (12.50%, 14.29%, 16.67%, 11.25%, 5.35%, 17.96%, respectively) in T 7 treatment. Again, the highest edible portion of infested fruit at early, mid & late fruiting stage, single fruit weight, length of healthy fruit, length of infested fruit, and yield were recorded (53.37%, 58.98%, 62.89%, 136.56g, 19.89cm, 15.31cm, and 15.56 t/ha, respectively) in T 7 treatment. From the study it was revealed that, pheromone trap along with spraying neem oil substantially reduced maximum fruit fly infestation in cucumber at field condition. A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN ENTOMOLOGY Sat, 01 Jan 2022 00:00:00 GMT http://localhost:8080/handle/123456789/5328 2022-01-01T00:00:00Z http://localhost:8080/handle/123456789/5327 MORPHOMETRIC CHARACTERISTICS OF BLACK SOLDIER FLY AND THEIR GROWTH RATE ON DIFFERENT WASTE MATERIALS RUMPA, SUNANDA SARKAR A study was conducted in SAU Insectarium at Sher-e-Bangla Agricultural University (SAU), Dhaka, Bangladesh during the period of July to December, 2021 to study the morphometry and growth rate of black soldier fly in different waste materials.Two different experiments were conducted using CRD method. Four different type of waste materials with different level of nutrient content available for black soldier fly larvae were selected for the study namely WM 0 ii : Control (Rice straw), WM 1 : Kitchen waste, WM 2 : Restaurant waste, WM 3 : Fish garbage and WM 4 : Leftover fruits, 4 replications were done to find out their efficacy on black soldier fly culture media.The life stages of black soldier fly was observed through the egg hatching (1-4 days), larval growth through six instars with five exuviate stages which took up to 13 to 18 days to complete. The last exuviate stage marks the transition from larva to prepupa, with ceasing of eating for further pupation (color: black). Male and female adult stage duration varied for 2 to 3 days although average adult stage duration was for 5 to 8 days for most of the black soldier flies. The mean larval period was observed as long as 15.50 days (±2.50). The mean egg to adult period for male black soldier fly was observed 45.10 days (±4.25), whereas for female black soldier fly the duration was recorded as 48.25 days (±4.13). Among the different waste materials Kitchen waste, Restaurant waste, Fish garbage and Leftover fruits considering black soldier fly culture, treatment WM 4 : Leftover fruits showed better performance in completing larval period, egg to adult duration and fecundity (10.00, 46.67 and 528) and took minimum days for hatching (3.05) demonstrating rapid growth and development as well as best fecundity. Treatment WM 4 : Leftover fruits showed better performance in egg to larval period and egg to adult growth rate (49.05% and 60.13%) resulting the most suitable culture media for black soldier fly commercial culture. A Thesis Submitted to Department of Entomology, Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka- In partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE (MS) IN ENTOMOLOGY Sat, 01 Jan 2022 00:00:00 GMT http://localhost:8080/handle/123456789/5327 2022-01-01T00:00:00Z