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DISEASES OF SORGHUM DISEASES CAUSAL ORGANISM Charcoal rot Macrophomina phaseolina Downy mildew / leaf shredding Perenosclerospora sorghi Rust Puccinia purpurea Grain smut / kernal smut / covered smut Sporisorium sorghi Loose smut Sporisorium cruenta Long smut Tolyposporium ehrenbergii Head smut Sporisorium reiliana Ergot / sugary disease Claviceps sorghi Leaf blight Helminthosporium turcicum Rectangular leaf spot […]
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 […]
BANANA Rhizome weevil Cosmopolites sordidus (Curculionidae: Coleoptera) It is a major pest of banana. Adult is a stout, reddish brown weevil. Grub is apodous and yellowish with reddish head. Grub bores into rhizome and tunnels within it. Pupates within a chamber made near the outer surface of rhizome. Adult also tunnels within stem feeding on […]
Beneficial insects and mites belong to three categories: predators, parasitoids, and pollinators. Predators capture and eat other organisms such as insects or mites. Predators include ladybird beetles, ground beetles, lacewings, syrphid (hover) flies, aphid midges (Aphidoletes) and yellowjacket wasps. Parasitoids are insects that parasitize other insects. The immature stages of parasitoids develop on or within its […]