Abstract:
The experiment was conducted at the research field of Sher-e-Bangla
Agricultural University, Dhaka; during the period from November, 2014 to
March 2015 to study the effect of different insecticides on controlling the major
insect pests of potato. The potato variety cardinal was used as the test crop. The
experiment was laid out in Randomized Complete Block Design (RCBD) with
four replications. The experiment consists of seven treatments viz. T1 (Admire
200 SL @ 0.5ml/L of water); T2 ( Diazinon10G with Emamectin Benzoate @
0.5 g/L); T3 (Ascend 3G with cartap @ 1g/L); T4 (Acetamiprid 0.5g/L); T5
(Furadan 5G with Actara @ 0.5g/L); T6 (Chlorpyriphos @ 2ml/L+Cypermethrin
@ 1.0ml/L) and T7 (untreated control). The experiment revealed that T4
treatment showed the best performance to control aphid infestation (92.51%) and
lowest infestation reduction was observed on T1 treatment (73.69%). In case of
jassid infestation 94.83% significant highest infestation reduction was observed
on T4 treatment and lowest on T1 and T3 treatment (87.09%). In controlling
cutworm, T2 treatment showed best performance (82.22%) followed by T1
(77.78%) and the lowest in T5 (46.77% reduction). Highest yield (30t/ha) was
observed on T2 treatment.
Description:
A Thesis
Submitted to the Department of Entomology
Sher-e-Bangla Agricultural University
Dhaka, in partial fulfilment
of the requirements
for the degree
of
MASTER OF SCIENCE (MS)
IN
ENTOMOLOGY
SEMESTER: JANUARY- JUNE, 2015
