Abstract:
The study was conducted at the farm of Sher-e-Bangla Agricultural University,
Dhaka during the period from April to December 2011 to determine the incidence
of the insect and mite pests on different varieties of roses. The experiment included
twelve varieties of roses viz. Wild rose, Crazy love bi-color, Yellow star, Missing
love, Compassion, Charming lady, Dream bangle, Sleepy moon, Sweet doll, Moon
light, Sweet love and Mini moni. Each variety represents as one treatment. The
experiment was laid out in Randomized Complete Block Design (RCBD) with
three replications. Incidence of pest viz. aphid, mite, whitefly and Japanese beetle
showed significant variation due to the effect of varieties. Among the varieties,
Sweet Love was tolerant of pests and the minimum number of aphid; number of
mite, number of whitefly and number of Japanese beetle were recorded at
vegetative and flowering stages. Varieties of rose significantly influenced the
incidence of pests as well as growth characteristics of rose indicating minimum
number of infested leaves per plant, minimum number of infested branch per plant
and minimum number of infested flower per plant on Sweet Love variety. Sweet
Love variety showed tolerant to pest of rose and gave better yield among the all
varietal treatments while sweet doll variety graded as susceptible due to the lowest
performance regarding pest incidence and infestation.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
ENTOMOLOGY
SEMESTER: JANUARY-JUNE/2011
