Evaluation of integrated approaches for the management of brinjal shoot and fruit borer utilizing antixenotic variety of brinjal

Abstract :

An experiment was conducted to evaluate the effectiveness of 10 integrated approaches comprising Antixenotic variety, mechanical control, repellent crop, sex pheromone and chemical insecticides for the management of BSFB in brinjal grown in the experimental farm of Bangabandhu Shiekh Mujibur Rahman Agricultural University, Gazipur in Winter 2005. The highest shoot infestation reduction over control (84.71%) was recorded in IPM package plots consisting of antixenotic variety +Mechanical control + Marshal 20 EC @ 1ml/L applied at 15 days interval. Among the IPM packages, the package consisting of antixenotic variety +Mechanical control + Marshal 20 EC @ 1ml/L applied at 15 days interval was found as the most effective package and provided the highest shoot (60.97%) and fruit (75.94%) infestation reduction over control. This package resulted significantly the highest healthy brinjsl fruit yield of 39.69 t/ha.IPM package of AV+MC+CSensured the maximum yield increase (66.88%) of healthy fruit over control. This was followed by 49.94% in (AV+SP) 42.03% in AV+MC+SP, 32.59% in AV+CS, 24.40% in AV+MC+ Soluk, and, 23.79% in AV+MC+NS IPM packages. Similarly the maximum reduction of 88.04% infested fruit yield was observed in IPM package, AV+MC+CS. The adjusted net return was the highest (Tk 2,33920.0) in IPM package consisting of AV+ MC+ Spray of Marshal 20EC @ 1mi/L of water and was  followed by Tk. 158820.0 in AV+MC+SPTk 127040.0 in AV+CS Tk 93560in AV+MC+ Soluk Tk 91020.0 in AV+MC+NS treatment. Similarly it is revealed that the BCR was the highest (72.35) in case of AV+NS due to low cost of seed price of neem. It is evident from the analysis that the use of pesticide gave higher return than the non chemical packages (AV+MC+Soluk, AV+MC+SP, AV+MC+NS). The total number of lady bird beetle and spider was highest (24.32%) in the plot of IPM package consisting of AV+soluk followed by untreated control (18.39%)having only antixenotic variety and in plots of AV+MC+Soluk (22.32). It was lowest (12.46%) in AV+MC+CS and  12.61% in IPM package with AV+SP. In case of spider, the total number of spider is lower than the untreated control except IPM package containing brinjal planted with umbellifer. Highest percent parasitazation was recorded in  the untreated control (9.67%) plots  followed by IPM package having AV+MC (8.57%), package with AV+SP (8.33%), AV+ MC +sex pheromone (9.33%) . But lowest percent parasitization was recorded from IPM package plots of AV+ MC+ Chemical spray (6.25%).

Keyword :

Management of BSFB, brinjal, India

Author(s) : Amin, S. M. R., Alam, M. Z., Rahman, M. M., Hossain, M. M., Mian, I. H.
Downloads : 298
Published Issue : 2019 Vol. 14 Number 2

2019 Vol. 14 Number 2