The nematode of this disease was first noticed in England in 1743 but its significance was realized only in 1775-76. Numerous virus – Management • Spray the crop with Mancozeb or Zineb at 2 kg/ha. This document is highly rated by … 70 million in wheat only in North India. Deficiency Diseases, Biology, Science, Civil Services Examination UPSC Notes | EduRev is made by best teachers of UPSC. The nematode acts as a vector carrying the bacterium on their surface. Seed gall nematode, Anguina tritici (causing ‘Ear cockle of wheat when alone and ‘Tundu disease’ when in combination with bacterium) was estimated to be Rs. Sep 28, 2020 - 2. Pratylenchus coffeae in an area of about 1,000 ha in Karnataka was estimated to be Rs. Tip Burn of Paddy or Pansukh of Rice: The names, tip burn, dakhitla, chatra, ukra, kadamoraor pansukh, have been given tea leaf-drying disease of rice known in India for quite … In case of ‘Tundu’ disease of wheat, bacterial cells are present in soil, on surface or inside the galls. ADVERTISEMENTS: Here is a list of fifteen major plant diseases with their control measures. Tundu disease is often known by names like “yellow ear rot of wheat”, “tundu disease of wheat”, “bacterial rot of wheat ears”, “bacterial spike blight”, and “yellow slime disease”. 1,,rgot h Ear cockle Kamal bunt Clal'iceps fusiformis Neomssia IlOrrida Spllacelia sorghi A.nguina tritic'i Neol'ossia indica Tundu..,. Disease cycle Primary spread is by externally seed-borne and soil borne conidia. About 1 000 bacteria-infested galls are lethal to a sheep. Tundu disease cannot develop without the involvement of nematode. Favourable Conditions • Temperature of 25˚C and high relative humidity. Crop Species Disease Causal organism 2 ~ I\J (X) Pearl millet Paddy Sorghum Wheat Triticale Potato E' b ~rgot Bun! Tundu disease of wheat is caused by the interaction of A. tritici with Corynebacterium tritici. Secondary spread by air-borne conidia. SYMPTOMS The disease does not produce galls but its effects are visible on the stems, leaves, Have all the aspects of disease development by bacteria and nematode. 1. Other minor diseases Helminthosporium leaf spot: Helminthosporium spp. Anguina funesta produces seed galls on rye grass in Australia and acts as a vector of the toxin-producing bacterium, Corynebacterium rathayi. It is often present in association with the yellow ear rot (tundu or tannan disease) caused by the bacterium Clavibacter tritici. ... Ppt File so far as barberry is concerned are unknown streak and black chaff is great. Variety of diseases of … Tikka disease of groundnut is a disease also called Leaf spot disease.The causal organism of tikka disease belongs to the genus Cercospora and mainly includes the two species (Cercospora arachidicola and Cercospora personata).Tikka disease cause epidemics in all the groundnut crop growing countries, including the United States, China, India etc. disease Nematode Bacterium Role of nematode Wheat Tundu Vascular wilt A. tritici M. incognita C. tritici Pseudomonas solanacearum Essential Assists Nematode – Virus Interaction In nematode – virus complex, nematode serves as a vector. Resistance in potatoes to P. solanacearum was broken down in plants infected with M. incognita acrita. 25 million is assessed in coffee due to. On their surface in England in 1743 but its significance was realized only in 1775-76 soil borne conidia this! Infected with M. incognita acrita diseases, Biology, Science, Civil Services Examination UPSC Notes | EduRev is by... 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