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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 CAUSAL ORGANISM Tikka early leaf spot Cercospora arachidicola Tikka late leaf spot Phaeoisariopsis personata Rust Puccinia arachidis Crown rot / Collar rot Aspergillus niger and A. flavus Dry root rot Macrophomina phaseolina Stem and pod rot Sclerotoum rolfsii Anthracnose Colletotrichum dematium Bacterial wilt Pseudomonas solanacearum Bud necrosis or ring mosaic Tomato spotted wilt virus […]
TOMATO Fruit borer Helicoverpa armigera (Noctuidae: Lepidoptera) It is a major pest of tomato. Main hosts are gram, cotton, citrus, indigo, cowpea, groundnut, linseed, sunflower, bhendi, chilli, millets, tobacco, etc. Young larvae feed on tender foliage and full-grown caterpillars attack fruits. They make circular boreholes and thrust their head inside fruit and eat inner contents. […]