Abstract:
The experiment was conducted in the field of Sher-e-Bangla Agricultural
University, Sher-e-Bangla Nagar, Dhaka during rabi season from November,
2017 to April, 2018 to find out the efficacy of different traps and some nonchemical
options
against
insect
pest
of
ridge
gourd.
There
were
six
treatments
in
the
study comprising with T
0
= Control, T
1
=Poison bait trap, T
2
= Pheromone
trap, T
3
= Banana pulp trap, T
4
= Neem oil, T
5
= Covering fruits with polythene.
The experiment was laid out in Randomized Complete Block Design (RCBD)
with four replications. Among the treatments, covering fruits with polythene (T
5
)
showed the lowest per cent of fruit infestation per plot (5.64%) over control
followed by neem oil (T
4
) (12.90%) and T
5
showed the highest yield of total fruit
weight per plot (7.48 kg) over control followed by T
4
(6.12 kg). In case of per
cent increase of healthy fruit weight over control T
5
showed the highest result
(939.24 %) followed by T
4
(685.12 %) at late fruiting stage of ridge gourd against
fruit fly and red pumpkin beetle. Finally, the highest yield increase over control
was achieved in covering with polythene, whereas the lowest increase showed
in banana pulp trap over control. All traps and non-chemical options have great
impact on ridge gourd yield and significant impact on fruit fly and red pumpkin
beetle reduction.
Key word: Ridge gourd, Fruit fly, Red pumpkin beetle, Poison bait, Banana pulp
trap, Pheromone trap, Covering fruits with polythene.
Description:
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, 2018
