Abstract:
The study was conducted in the experimental field of Sher-e-Bangla Agricultural
University, Dhaka during the Rabi season 2017-2018 using BARI Sarisha-15 to
evaluate the effectiveness of some promising bio-pesticides on aphid population
abundance in field and laboratory condition. The treatments for the management were
T
1
: neem Oil, T
2
: Bioneemplus 1EC, T
3
: Neem seed kernel extract, T
4
: Spinosad 45EC,
T
5
: Detergent, T
6
: Field sanitation and T
7
: untreated control. Among the treatments,
Spinosad 45EC performed as the most effective insecticide in reducing the highest
percent of aphid population on leaves (60.00%) whereas Detergent showed the least
performance (39.54%). In inflorescence, Spinosad 45EC performed as the most
effective bio-insecticide in reducing the highest percent of aphid population (68.06%)
whereas detergent showed the least performance (53.57%). The maximum quality seed
of BARI Sarisha-15 obtained from treatment Spinosad 45EC (1.62 mt ha
) due to lower
aphid abundance. On the other hand, lower quality yield performance obtained from
the T
7
treatment due to an untreated control (1.29 mt ha
-1
). After harvesting of seed,
height germination (95.33%) was found in T
4
(Spinosad 45EC), on the other hand
lowest germination (77.67%) was found in T
7
(Control plot).
-1
Description:
A Thesis submitted to the
Institute of Seed Technology
Sher-e-Bangla Agricultural University, Dhaka-1207in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (M.S.)
IN
SEED TECHNOLOGY
SEMESTER: JANUARY-JUNE, 2018
