M.M. Rahaman
Scientific Officer
RARS, Jamalpur
B.K. Goswami, M. Hamim Reza, Tanjina Islam, M.Z. Ferdous, K.A. Kader, M.M. Begum, M. Iqbal Hossain, and M. Hossain
Scientists
BARI
An experiment was conducted to find out the effective fungicide (s) in controlling late blight of potato at four locations viz., Jamalpur, Bogra, Rangpur and Munshigonj during 2010-2011. In Jamalpur, the selected fungicides Marigold showed the best performance to reduce the disease incidence and increase the yield (27.9 t/ha) which was the same with Betacyl 72 WP (27.1 t/ha.) In Bogra, Putazeb 80 WP showed the best performance in reducing the disease over control (93.65%) among these fungicides. In Rangpur, all the tested fungicides showed significantly better performance over control. Considering percentage disease incidence, Nectozeb 80 WP, Diamond 80 WP and Advance 72 WP showed better performance than all other treatments and reduced more than 80 % over control. In Munshigonj, all fungicides also performed better over control. Among them, the highest disease reduction was observed in NetcoZeb, Cure, Forum, Ratonil, Secure, Savar, Chlorofil and Diamand ranging from 79.12% ot 84.62%.
Fungcide, Control, Late Blight, Potato
Jamalpur, Bogra, Rangpur and Munshigonj
Pest Management
To evaluate the performance of some new fungicides in controlling the disease under field condition.
The field experiment was laid out to find out the effective fungicide (s) in controlling late blight of potato at four locations viz., Jamalpur, Bogra, Rangpur and Munshigonj during the Rabi 2010-2011. The susceptible potato variety Diamant was used in all locations with three replications following RCBD. Recommended dose of fertilizer and other agronomic practices were applied. Spraying was initiated just after the disease symptoms were visible in the field and three times sprays were done at 10 days interval. The dose of fungicide was 2g/L and maintained in all locations. There were thirty three fungicides in Jamalpur, thirteen fungicides in Bogra and Rangpur and nineteen fungicides in Munshigonj were used for testing their efficacy under field condition. Methods of plantimg, fertilizer and intercultural operation were done properly following other stations. Data were recorded on percent foliage infection and tuber yield and analyzed statistically. Disease reduction and yield increased over control were also calculated.
Annual Report-2010-11, TCRC
40,000/-
The effective fungicide (s) in controlling late blight of potato suggested as Marigold, Betacyl 72 WP, Putazeb 80 WP, Nectozeb 80 WP, Diamond 80 WP, Advance 72 WP, NetcoZeb, Cure, Forum, Ratonil, Secure, Savar, Chlorofil and Diamand
Report/Proceedings