Abstract:
The present study was conducted at the farmer’s orchard in Bandarban, Rangamati
and Khagrachari districts, during the period from January to July, 2016 to develop
management options against mango fruit fly and fruit weevil. The treatments of the
experiment were T1 = application of Ripcord 10EC 4 times, T2 = application of
Ripcord 10EC 5 times, T3 = application of Ripcord 10EC 4 times + pheromone trap,
T4= 5 times application of Ripcord 10EC + pheromone trap, T5= 4 times application
of Ripcord 10EC + pheromone trap + bait trap, T6 = 5 times application of Ripcord
10EC + pheromone trap + bait trap and T7 = untreated control. The experiment was
laid out in Randomized Complete Block Design (RCBD) with three replications. The
lowest percent of fruit infestation (6.88%, 6.99% and 5.72% at Bandarban, Rangamati
and Khagrachari, respectively) was observed in T4 as against the highest percent fruit
infestation (83.68%, 88.58% and 86.12% at Bandarban, Rangamati and Khagrachari,
respectively) was found in T7. Treatment T4 gave maximum protection of fruit
infestation (91.77%, 92.10% and 93.36% at Bandarban, Rangamati and Khagrachari,
respectively) over control and produced higher amount of healthy mango fruits/tree.
Treatment T6 consisting spraying Ripcord 10EC @ 1.0 ml/L water 5 times +
pheromone trap + bait trap and T5 spraying Ripcord 10EC @ 1.0 ml/L water 4 times +
pheromone trap + bait trap also showed the similar performance for the management
of mango insect pests. Among seven treatments T4 comprising spraying of Ripcord
10EC @ 1.0 ml/L of water 5 times + pheromone trap was the most effective
management practice and may used for the management of mango fruit fly and fruit
weevil.
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 (MS)
IN
ENTOMOLOGY
SEMESTER: JULY-DECEMBER, 2015
