We urgently need more information and understanding of tumv pathogenesis and the host responses involved in disease development in cruciferous crops. Turnip mosaic on foliage of turnip. The aphids are more likely to travel downwind, so weather conditions have an enormous effect on the spread of t. The symptoms of this disease vary depending on which host it infects and the stage of growth of the plants. The entire plant may become stunted and distorted and yields are reduced. Heat resistant cultivars usually are highly susceptible to turnip mosaic virus (lim et al. , 1978). When cabbage becomes infected, the outer leaves are more uniformly necrotic but show some ringspot pattern (conroy, 1959). Winged aphids typically spread the infection over a thousand feet. Symptoms include variegated color patterns (mosaic), necrotic ringspots, and distortion on foliage. · on a turnip with mosaic virus , these lesions become necrotic and generally occur near the leaf veins. Weeds and cole crops are reservoirs of the virus. Most cruciferous vegetables are susceptible to this virus. The virus is usually spread by 40-50 species of aphids in a non-persistent manner. In cool weather, this combination of diseases causes severe stunting and vein clearing. And it infects plants all over the world. See full list on gardenerspath. com Turnip mosaic virus has a phenomenally wide host range – at least 318 species of plants in 43 families! Destruction of crop residues immediately after harvest. Cabbage, broccoli, and cauliflower leaves develop light green circular lesions that are up to five inches wide. Heat resistant cultivars are most susceptible to mosaic virus of turnips. Hosts in other families include spinach, beets, lettuce, rhu. Turnip mosaic virus (tumv) is a potyvirus of the family potyviridae that causes diseases in cruciferous plants, among others. · turnip mosaic virus (tumv) is a devastating potyvirus pathogen that infects a wide variety of both cultivated and wild brassicaceae plants. Among them, tumv is the most severe on turnip, radish, mustard, and chinese cabbage. Symptoms on the young leaves include yellow round spots. Particular threats include green peach, turnip, and cabbage aphids. Infected turnip plants tend to flower early. Tumv can infect the whole plant. Stunting and mottling are more common in warm weather. A brief page about the turnip mosaic virus , including the plants affected, a brief description, symptoms, management, and insecticide care. Cauliflower mosaic virus is also spread mechanically a. Cauliflower mosaic virus often infects cabbage and other cole crops when they are already infected with tumv and enhances the severity of the infection. Unfortunately, a wide variety of aphids can transmit tumv by feeding on a plant for less than a minute. The tissue in these lesions dies as the.
