http://localhost:8080/handle/123456789/2757 2026-04-18T16:31:22Z 2026-04-18T16:31:22Z KARIM, MD. FOZLUL http://localhost:8080/handle/123456789/2839 2019-10-17T11:56:18Z 2011-06-01T00:00:00Z

MANAGEMENT OF SUCKING INSECT PESTS OF BRINJAL USING PLANT EXTRACTS KARIM, MD. FOZLUL An experiment was conducted at the experimental farm of Sher-e-Bangla Agricultural University Dhaka, during February to August, 2012 to evaluate some plant extracts against sucking insect pests such as aphid (Aphis gossypii), jassid (Amrasca biguttula biguttula), whitefly (Bemisia tabaci), mealybug (Paracoccus marginatus) attacking brinjal. Neem seed kernel extract, Mehogoni seed extract, Tamarind fruit extract, Bonkolmi leaf extract, Biskatali leaf extract, Tobacco leaf extract, Mustard seed extract and untreated control plots were set in Randomized Completely Block Design (RCBD) with 3 replications. The population of aphid, jassid, whitefly and mealybug were gradually decreased with plant age in respective of treatments. The lowest number of aphid, jassid, whitefly and mealybug (5.33, 3.33, 4.33 and 2.33 before fruiting stage and 12.67, 10.67, 11.67 and 9.67 during fruiting stage) per 5 leaves/plant were observed in neem seed kernel extract treated plots. The number of leaves and branches/plant, number of fruits/plant, length, diameter and weight of individual fruit were found the highest in neem seed kernel extract @ 20g/l treatment. The same treatment gave the highest yield (29.58t/ha) and increased 41.10% yield over control. The maximum net return (330071 tk/ha) and the highest benefit cost ratio (2.28) was also observed in neem seed kernel extract. Bishkatali leaf extract showed the similar performance in all regards against on aphid, jassid, whitefly and mealybug on brinjal. Bonkolmi leaf extract also gave the satisfactory result in reducing aphid, jassid, whitefly and mealybug infestation and increasing brinjal yield A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (M.S.) IN ENTOMOLOGY SEMESTER: JANUARY-JUNE, 2011

2011-06-01T00:00:00Z SAZIDY, MASUM SHARIF http://localhost:8080/handle/123456789/1271 2019-10-01T07:03:10Z 2011-06-01T00:00:00Z

STUDY ON THE INCIDENCE OF MAJOR INSECT PESTS OF SOYBEAN AND THEIR MANAGEMENT SAZIDY, MASUM SHARIF The experiment was conducted at the experimental Field of Sher-e-Bangla Agricultural University, Dhaka during the rabi season from November, 2010 to March. 2011 to study on the major insect pest of soybean and their management. The experiment comprised with seven different insecticides including control treatment viz. Marshal 20EC @ 3mlfL water; Semcap 50EC @ 3m1/L water; Dursban 20EC @ 3ml/L water; Basathrin IOEC @ lml/L water, Fiter 2.5EC@ I mulL water, Sobicom 42513C @ 2 mt/fl. water, Aktara 5G @ 3 mg//L water, Control were used in this study. Soybean var. Shohag was included in this study. A single factor experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Result revealed that the lowest number of aphid, jassid. whitefly, thrips and pod borer was recorded from T1 (Marshal 20EC @ 3mlIL water) while the height number was in untreated control treatment (TO. The height percent reduction of aphid, jassid, whitefly, thrips and pod borer population over control was also recorded from T1 treatment (use of Marshal 20EC @ 3mlIL water ) as compared to other treatment. The yield of soybean per plot was the height (1.10kg) in T1 (Marshal 20EC @ 3mlIL water) treated plot and lowest yield controled treatment. Similarlay the yield of soybean per hectare was also the height (Il .00 ton) in T, treated plot followed by T7 treated plot and lowest was in controlled treatment (Tg). The findings of present study indicated that Marshal 20EC ® 3mVL water could be used to reduce the incidence of major insect pest of soybean as well as to increase the yield of soybean. A Thesis Submitted to the Faculty of Agriculture. Sher-e-Bangla Agricultural University, Dhaka, in partial fulfiIlment of the requirements for the degree of MASTER OF SCIENCE IN ENTOMOLOGY SEMESTER: JANUARY- JUNE/2011

2011-06-01T00:00:00Z SHARIFUZZAMAN, MOHAMMAD http://localhost:8080/handle/123456789/1270 2019-10-01T07:03:26Z 2011-06-01T00:00:00Z

ECO-FRIENDLY MANAGEMENT OF RICE WEEVIL, SITOPHILUS ORYZAE LINN. USING SOME BOTANICALS AND FUMIGANTS ON STORED RICE SHARIFUZZAMAN, MOHAMMAD Two experiments were conducted in the laboratory under the Department of Entomology. Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from September 2011 to February 2012 to find out the efficacy of some promising botanicals and fumigants applied against rice weevil. Sitophilus oryzac Linn. on stored rice. Under experiment where five botanicals along with one untreated control were used viz, dried neem leaf powder @ 2.5 g/kg rice, dried bishkatali leaf powder @ 2.5 g/kg rice, dried marigold leaf powder @ 2.5 g/kg rice, dried dholkolmi leaf powder @ 2.5 g/kg rice, dried mahogany leaf powder @2 2.5 g/kg rice, and untreated control. In experiment three fumigants along with untreated control treatments were used viz, camphor 1 gm/kg rice, phostoxin tablet 03 200 mg/kg rice, naphthalene @ 500 mg/kg rice and untreated control. Both the experiments were laid out in Completely Randomized Design (CRD) with 4 replications. Among five botanicals, the dried neem leaf powder @ 2.5 gm/kg rice reduced the highest percent of grain infestation by number (65.8 1%) and weight (57.42%) over control during the management of rice weevil. S. oryzae in storage than dried leaf powder of bishkatali. marigold. dholkalmi and mahogany; whereas, the dried mahogany leaf powder reduced showed the least performance in reducing the percent grain infestation by number (32.14% and weight (26.76%) over control. Among three fumigants. camphor Cw 1 gm/kg rice reduced the highest percent of grain infestation by number (73.34%) and weight (76.19%) over control than phostoxin tablet and naphthalcne, where naphthalenc @2 500 mg/kg rice reduced the lowest percent of grain infestation by number (55.15%) and weight (59.96%) over control. Irrespective of botanicals and fumigant based management practices. all fumigants performed superior in terms of the reduction of percent grain infestation and survibility of larvae and pupae of rice weevil than botanicals. where camphor @ 1.0 gm/kg rice grains showed the best performance in controlling rice weevil on rice in storage. Camphor is also acceptable for the consumers in terms of environmental safety point and human health hazards free measures applied against insect pests of stored products. because it is derived from Cinnarnonurn camphora plant. A Thesis Submitted to the Department of Entomology. Faculty of Agriculture, Sher-e-Bangla Agricultural University. Dhaka in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN ENTOMOLOGY SEMESTER: JANUARY-JUNE 2011

2011-06-01T00:00:00Z ALAM, S. M. SHAFIUL http://localhost:8080/handle/123456789/1269 2019-10-01T07:03:39Z 2011-06-01T00:00:00Z

PERFORMANCE OF SOME COUNTRY BEAN VARIETIES AGAINST POD BORER,MARUCA VITRATA FAB.IN SUMMER ALAM, S. M. SHAFIUL The experiment was conducted at the experimental farm of Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh during April 2011 to November 2011 to evaluate the performance of some country bean varieties against the attack of pod borer in summer. The study was comprised of five varieties; IPSA seam-1, IPSA seam-2, IPSA seam-3, BARI seem-3 and Goalgada. From the present study it was observed that the BARI seem-3 variety of country bean gave the highest result. The variety BARI seem-3 showed highest (14.67 ton ha-1) total yield among the different varieties of country bean used in the present study. This variety (BARI seem-3) performed best results in increasing number of healthy flower for 5 inflorescences (11.00), lowest number of infested flower for 5 inflorescences (0.6667), lowest flower drops (4.333), highest total number of pods (127.3 pods plot-1), increasing number of healthy pods (119.0 pods plot-1), increased rate of length (14.83 cm) and girth (6.867 cm) of 5 healthy pods, highest total weight of healthy pods (758.3 g), lowest number of infested pods (8.333 pods plot-1),increased rate of length (10.90 cm) and girth (6.033 cm) of 5 infested pods, highest total weight of infested pods (93.67 g) over the other varieties. The variety IPSA seam-1 showed the least performance regarding all the parameters. Whereas, IPSA seam-3 variety gave the second best performance regarding the above parameters including the second highest yield (10.67 ton ha-1). A Thesis Submitted to the faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN ENTOMOLOGY SEMESTER: JANUARY-JUNE, 2011

2011-06-01T00:00:00Z