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Crop Diseases

Ear Cockle Disease Of Wheat

  Anguina tritici was the first plant parasitic nematode to be described in the literature in 1743. It causes a disease in wheat and rye called “ear-cockle” or seed gall. Originally found in many parts of the world but has been eradicated from the western hemisphere. Currently in north Africa …

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Sugarcane Mosaic

Sugarcane mosaic virus (SCMV) is a plant pathogenic virus of the family Potyviridae. The Potyviridae are a family of plant viruses. They are flexuous filamentous rod-shaped particles. Their genome is composed of positive-sense RNA which is surrounded by a protein coat made up of a single viral encoded protein called …

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Tobacco Mosaic

Tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus that infects plants, especially tobacco and other members of the family Solanaceae. The infection causes characteristic patterns (mottling and discoloration) on the leaves (hence the name). TMV was the first virus to be discovered. Although it was known from …

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Potato Mosaic

  Wild potato mosaic virus (WPMV) is a plant pathogenic virus of the family Potyviridae.The Potyviridae are a family of plant viruses. They are flexuous filamentous rod-shaped particles. Their genome is composed of positive-sense RNA which is surrounded by a protein coat made up of a single viral encoded protein …

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Soft Rot of Potato

Bacterial soft rot is the most serious causes of potato losses in storages. Soft rot bacteria infect potato tubers which have been damaged by mechanical injury or the presence of other diseases. Bacterial soft rot develops much faster when potatoes are wet. Tubers may be wet when put into storage, …

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Bacterial Blight of Rice

Symptoms:The disease may induce either wilting of leaf blight. Wilting commonly appears sporadically in the field causing serious damage, and is known as “Kresek”. This is due to early systemic infection of from infected seeds and the bacterium brought in contact with the germinating seedlings. It commonly occurs within 3-4 …

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Angular Leaf Spot of Cotton

Symptoms:The disease appears on different parts of cotton plant, both in seedling and mature plant stage. The disease first appears on leaves, which appear water soaked, turn black and dry up often leaving the young seedling green with a black tip. Most of such plants die. In less severely affected …

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Citrus Canker

Symptoms:The disease appears on leaves, branches and fruits. The damage is particularly severe in young trees that may flush many angular shoots, resulting in significantly retarded growth or sometimes death of the affected plants. On young leaves small yellowish water soaked spots develop first on the lower surface and then …

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