Abstract:
An experiment was conducted in the experimental field of Sher-e-Bangla
Agricultural University, Dhaka during the period of March to August, 2008 to
evaluate the effectiveness of some chemicals and non-chemical methods for the
management of red pumpkin beetle, Aulacophora foveicollis (Lucas) in white
gourd. The experiment comprised of 7 treatments with 3 chemical insecticides
(cypermethrin 10EC, chlorpyriphos 20EC, cartap 50SP), 3 non-chemical
methods (viz, mosquito net bather at seedling stage, application of ash, hand
collection and destruction of adult beetle) and an untreated control. Among the
3 chemicals, cypermethrin IOEC was Ibund as the most effective insecticide in
reducing the beetle population (88.20%) as well as in minimizing the percent
leaf area damage (17.08%) and increasing fruit length (23.62%), diameter of
fruit (50.75%) and yield (43.20 %) of white gourd. Application of ash at 7 days
interval showed superior performance against the beetle among the nonchemical
methods. Considering all 7 treatments, application of cypermethrin
I OEC was the most effective for the management of red pumpkin beetle
followed by application of ash, ehiorpyriphos, cartap, hand collection and
destruction of adult beetle and mosquito net barrier at seedling stage
respectively.
Description:
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
IN
ENTOMOLOGY
SEMESTER: JANUARY-JUNE, 2007
