Abstract:
The experiment was conducted in the laboratory under the Department of
Entomology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the
period from April to November 2013 to evaluate the effectiveness of some botanicals
against the pulse beetle. The experiment comprised five plant materials each with two
doses and laid out in Completely Randomized Design (CRD) with three replications.
Among the plant materials, Tobacco leaf powder @ 2g/100g mungbean seeds (T8)
showed the best performance against the bruchids regarding minimum days of 100%
adult mortality (3 days), and reducing fecundity (83.71%), egg hatching (87.19%),
adult emergence (92.05%), number of holes per grain (92.04%), as well as lowest
level of grain infestation (21.67% by number) and weight loss (4.10%). Tobacco leaf
powder @ 1g/100g seeds (T7) also gave the similar results. Turmeric powder @
2.0/100g seeds (T2) and Red chili powder @ 2.0g/100g seeds (T4) gave the
satisfactory result against C. chinensis. Ginger powder also gave intermediate results
and neem leaf powder showed the least effectiveness regarding adult mortality,
fecundity, egg hatching, adult emergence of bruhcid and grain infestation by them.
Tobacco leaf powder may be used for the management of pulse beetle in storage.
Description:
A Thesis
Submitted to the Department of Entomology
Sher-e-Bangla Agricultural University, Dhaka, in partial
fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
ENTOMOLOGY
SEMESTER: JANUARY-JUNE, 2013