M.H.Rashid
Scientific Officer
ARS, Burirhat, Rangpur.
S. N. Alam
Chief Scientific Officer
Entomology Division, BARI, Gazipur
M. A. Mannaf
Chief Scientific Officer
ARS, Burirhat, Rangpur
A field experiment was conducted at Agricultural Research Station, Burirhat, Rangpur during the Rabi season of 2012-13 for evaluating different management approaches against red spider mite of brinjal. Spraying of Vertimec 1.8 EC (Abamectin) was found most effective against red spider mite of brinjal. The highest (88.28%) reduction of red spider mite population over control was obtained from Vertimec 1.8 EC treated plots. The highest yield (31.11 t/ha) and marginal benefit cost ratio (MBCR) (11.04) was also obtained from Vertimec 1.8EC. Biotin M 1.2 EC offered the 2nd highest effectiveness providing 77.23 % reduction of red spider mite population over control and MBCR 6.19.
Brinjal, red spider mite, Abamectin
Pest Management
To develop the suitable management approach for controlling the red spider mite on brinjal.
The experiment was carried out at Agricultural Research Station, Burirhat, Rangpur during the Rabi season of 2012-13 for determining suitable management approaches for controlling the red spider mite on brinjal. There were five treatments viz. T1= Application of Neem seed extract @ 50g/liter of water, T2= Application of Vertimec 1.8EC (Abamectin) @ 1.2 ml/liter of water, T3= Application of Biotin M 1.2 EC (Abamectin) @ 1.5 ml/liter of water, T4= Application of Intrepid 10 EC (Chlorfenapyr) @1.0 ml/liter of water and T5 = Untreated control. The experiment was laid out in a RCB design with 3 replications. The unit plot size was 3m x 3m. Three consecutive sprays were done at fifteen days interval, starting from one month after transplanting to minimize the protection cost, residual effect on consumer, development of resistance in insect and environmental hazards. Observations on the target pest population were recorded one day before spraying, and after three and ten days of spray. During observation such five plants were selected randomly from each plot and three leaves (top, middle and bottom) from each plant were selected.
Annual Report 2012-2013, Entomology Division, BARI , Gazipur
35,000.00
Spraying of Vertimec 1.8 EC (Abamectin) @ 1.2 ml/liter of water was found most effective against red spider mite of brinjal. Hence, this technology could be recommended to the brinjal growers accross the country
Report/Proceedings