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White rust Albugo cruciferarum Leaf blight Alternaria brassicae 1. WHITE RUST / BLISTER- Albugo cruciferarum Symptoms Isolated, raised and shiny white pustules develop on leaves and stem. In severe cases, the entire plant may remain dwarf and only small leaves are formed. The pathogen is an obligate parasite. Mode of spread and survival The infection […]
DISEASES OF WHEAT DISEASES CAUSAL ORGANISM Black / Stem rust Puccinia graminis tritici Leaf / brown / orange rust Puccinia recondita Yellow / stripe rust Puccinia striiformis Loose smut Ustilago nuda tritici Flag smut Urocystis agropyri Rough spore bunt / stinking bunt Tilletia caries Smooth spored bunt Tilletia foetida Kernal bunt Neovassia indica Powdery mildew […]
Aphid, Aphis craccivora Hemiptera, Aphididae They are small-sized insects (2 mm long), pear shaped, green, greenish brown or greenish black in colour. Adults are mostly wingless but few winged forms also seen. It has 12-14 generations per year Nymphs and adults suck sap from tender growing shoots, flowers, causing stunting and distortion of the […]
Pest Monitoring Monitoring phytophagous insects and their natural enemies is a fundamental tool in IPM – for taking management decision Monitoring – estimation of changes in insect distribution and abundance information about insects, life history influence of biotic and abiotic factors on pest population Pest Surveillance Refers to the constant watch on the population dynamics […]