Effect Of Planting Dates and Fungicides on Potato Late Blight (Phytophthora Infestans (Mont.) De Bary) Development and Tuber Yield In Chitwan, Nepal

S. P. Gaire, S. M. Shrestha, B.P. Sharma Adhikari

Abstract


A field experiment was conducted to find out the effects of different planting dates and fungicides in the control of potato late blight (Phytophthora infestans (Mont.) de Bary) on commercial TPS potato, variety HPS 7-67, at Rampur, Chitwan, during October 2011- March, 2012 under natural epidemiological conditions. The study consisted of four different planting dates, starting from 25th Oct. at ten days intervals and three fungicidal sprays (Acrobat, Dithane M-45, Jeebatu) and without spray as a check in split plot design with three replications. Planting dates were assigned to the main plots and fungicides to the sub-plots.

Keywords


Late blight, planting dates, fungicides, RAUDPC, efficacy.

Full Text:

PDF

References


Baker, K. M., Andresen, J. A., Kirk, W. W. and Stein, J. M. (2000). Crop disease mitigation: Daily risk modeling for Michigan potato growers. Paper 522. In:Proceedings of the Fourth International Conference on Integrating GIS and Environment Modeling (GIS/EM4). Banff, Alberta, Canada.

Dhital, S. P., Sharma, B. P., Sakha, B. M. and KC, H. B. (2007). Farmers Field School approach for management of late blight and bacterial wilt in potato: On-farm knowledge sharing between farmers and researchers in Nepal. Agricultural Development Journal, 4(4), 166-178.

Ghimire, S. R., Hyde, K. D., Hodgkiss, I. J., Shaw, D. S. and Liew, E. C. Y. (2002). Diversity in the population of P infestans in Nepal: Late blight managing the global threat. In: The Proceedings of the Global Initiative on Late Blight Conference 11-13 July 2002. Hamburg, Germany. 134 p.

Guenther, J. F., Michael, K. C. and Nolte, P. (2001). The economic impact of potato late blight on US growers. Potato Resistance, 44, 121-125.

Hijmans, R. J., Forbes, G. A. and Walker, T. S. (2000). Estimating the global severity of potato late blight with GIS-linked disease forecast models. Plant Pathology, 49, 697-705.

Sharma, B. P., Manandhar, H. K., Forbes, G. A., Shrestha, S. M. and Thapa, R. B. (2011). Efficacy of fungicides against Phytophthora infestans in potato under laboratory and field conditions. Nepal Agriculture Research Journal, 11,28-39.

Sharma, B. P., KC, R. B., Dhital, S. P., KC, H. B. and Chand, G. B. (2007). Farmers empowerment and adoption of potato disease management technology through farmers field school and participatory research. In: Proceedings of the 8th National Outreach Workshop, 19-20 June 2007, NARC, Nepal. pp. 220-229.

Shrestha, S. K. (1976). Study on late blight of potato in Nepal. Nepalese Journal of Agriculture, 6(11), 91-105.

Shrestha, S. K. (2000). Late blight of potato: Its magnitude distribution losses and approaches to management in Nepal. African Potato Association Conference Proceedings 5, 303-307.

Shrestha, S. K. (2005). Population structure and genetic variation of Phytophtora infestans, a causal agent of late blight of potato in Nepal. Nepal Journal of Science and Technology, 6, 53-56.

Shrestha, S. K., Shrestha, K., Kobayashi, K., Kondo, N., Nishimura, R., Sato, K. and Ogoshi, A. (1998). First report of A1 andA2 mating types of Phytophthora infestans on potato and tomato in Nepal. Plant Disease, 82 (9), 10-13.

Shrestha, S. M. (1989). Final report on Studies of late blight of potato and tomato in Chitwan valley, Nepal.

Singh, V. K. and Pundhir, V. S. (2012). Effect of date of planting on potato late blight development and tuber yield. Pantanagar Journal of Research, 10 (1), 31-35.

Stein, J. M. and Kirk, W. W. (2004). The generation and quantification of resistance to dimethomorph in Phytophthora infestans. Plant Disease, 88, 930-934.




Bookmark and Share


Copyright (c) 2014 S. P. Gaire, S. M. Shrestha, B.P. Sharma Adhikari

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

 

All published Articles are Open Access at  https://journals.pen2print.org/index.php/ijr/ 


Paper submission: ijr@pen2print.org