Abstract:
The experiment studied on the major insect pest infestation and their management in
sesame during March to June 2012 . The experiment comprised of seven treatments with
different chemical insecticides, botanicals with mechanical control including a untreated
control; viz. T1(Hand picking), T2 (Neem Seed Extract (NSE) 50g+2g Detergent/L),
T3(Hand picking+ Neem Seed Extract (NSE) @50gm/L), T4(Perfeckthion
40EC@2m1/L), Ts(Diazinon 60 EC@2m1/L), T6(Ripcord 1OEC@lml/L), T7(Control
treatment). Hawk moth and hairy caterpillar were observed as the major pest of sesame.
The treatment T3; Hand picking+ Neem Seed Extract (NSE) @50gm/L gave the
maximum control of hawk moth and hairy caterpillar which were highest percent of
reduction over control. The maximum number of leaves, number of silliqua per plant,
yield per plot were found from the same treatment Hand picking+ Neem Seed Extract
(NSE) 50gm/L. T3 showed the highest yield (1.54 t ha') while the lowest yield (1.15 t
had) was found from control treatment. The results indicate that the Hand picking+
Neem Seed Extract (NSE) 50gm/L showed the best performance to manage the major
pests of sesame as well on the growth and yield as compared to other treatments applied.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-B angla Agricultural University. Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
ENTOMOLOGY
SEMESTER: January-June/2013
