This paper reviews the significance of late blight of potato and controlling strategies adopted for minimizing yield losses incurred by this disease by the application of synthetic fungicides and different organic amendments. Integration of late blight control in tropical regions with abundant fungal inoculants in most months of the year was also seen as one of the best choices in disease management. Overwinters in infected potato tubers left underground or. Cultural control, chemical management, and advanced disease management are the most effective interventions. It is a concern when n leaves are wet for more than 10 to 12 hours at moderate temperatures (60-80F). An integrated disease management strategy includes successful control of this disease. Different methods for prevention of crops from late blight has been developed and used worldwide. The spores are introduced to good plants by wind and rain. The development of a sexual spore known as oospore includes two types of pairs, A1 and A2. The pathogen has distinct survival mechanisms and two life cycles infection processes. Phytopthora harms the foliar portion in the field and also the tuber in the storage that can result in complete crop failure in potato.

It was first reported during the Irish Potato Famine, leading to massive starvation in Ireland and other parts of Europe during the middle of 19 th century. Late blight, caused by Phytophthora infestans, is one of the most threatening pathogenic diseases which not only results in direct crop losses but also cause farmers to embrace huge monetary expenses for disease control and preventive measure. Late the blight of potato is a devastating and one of the economic diseases of potato and other plants belonging to family Solanaceae. Potato, late blight, yield loss, fungicides, organic amendment Abstract Nepal Agricultural Research Council, National Plant Breeding and Genetics Research Centre, Khumaltar, Lalitpur, Nepal

Institute of Agriculture and Animal Science, Gokuleshwor College, Tribhuvan University, Baitadi, NepalĬentral Department of Chemistry, Tribhuvan University, Kathmandu, Nepal Himalayan College of Agricultural Science and Technology, Purbanchal University, Kathmandu, Nepal

Late blight of potato management