07 Oct Management of 6 major bacterial and viral diseases of Onion and Garlic
प्याज और लहसुन के 6 प्रमुख बैक्टीरियल और वायरल रोगों का प्रबंधन Onion (Allium cepa L.) and Garlic (Allium sativum L.) are the most important Allium species cultivated in India and used as vegetable, salad and spice in the daily diet by large population. The crop is attacked by many diseases like fungi, bacteria, viruses and nematodes. The diseases affects at production, harvesting, processing and marketing stages, which lower the quality, reduce the yield. Onion and garlic diseases are currently managed by routine application of several fungicides, which not only posses a serious threat to the environment and mankind but also slowly buildup resistance in the pathogen. Several studies were conducted at National Horticultural Research and Development Foundation, Regional Research Station, Karnal, the results revealed that the decision to omit unnecessary fungicide sprays may be guided by warning systems, several of which have been developed for purple blotch and stem phylium blight disease over the years. It is concluded that rational management of purple blotch and stemphylium blight disease is feasible, and that within a few years, these diseases will be primarily managed by non-chemical measures supported by a few properly timed fungicide applications. The important diseases affecting the onion and garlic and their integrated management are reviewed here. 1. Brown rot in Onion and Garlic Pathogen:...