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Viral Plant Diseases
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Cassava Mosaic Virus (CMV)
Symptoms: Mosaic and distortion of leaves, stunted growth. Transmission: Whiteflies, infected stakes. Management: Use disease-free cuttings, control whitefly population, uproot infected plants.
Grapevine Leafroll-associated Virus (GLRaV)
Symptoms: Downward rolling of leaves, reduced grape yield and quality. Transmission: Mealybugs, scale insects; propagation of infected material. Management: Use virus-free plant material, control vector insects.
Papaya Ringspot Virus (PRSV)
Symptoms: Ringspots on fruits and leaves, stunting of plants. Transmission: Aphids, mechanical transmission. Management: Use resistant varieties, control aphids, destroy infected plants.
Plum Pox Virus (PPV)
Symptoms: Ring-shaped spots on leaves, deformation of fruit. Transmission: Aphids, grafting with infected material. Management: Use certified virus-free material, control aphid vectors, remove infected trees.
Potato Leafroll Virus (PLRV)
Symptoms: Rolling of leaf tips, leaf purpling, stunted tuber growth. Transmission: Aphids, vegetative propagation. Management: Use virus-free planting material, control aphids, destroy volunteer plants.
Wheat Streak Mosaic Virus (WSMV)
Symptoms: Streaking and mottling of leaves, reduced yield. Transmission: Spread by wheat curl mite, mechanical damage. Management: Destroy volunteer wheat, manage mite population, resistant varieties.
Maize Dwarf Mosaic Virus (MDMV)
Symptoms: Mosaic pattern on leaves, dwarfing of plants. Transmission: Spread by aphids. Management: Control aphid population, plant resistant varieties, crop rotation.
Soybean Mosaic Virus (SMV)
Symptoms: Mottling and distortion of leaves, reduced seed quality. Transmission: Seed transmission, aphids. Management: Use disease-free seed, control aphid vectors, practice crop rotation.
Barley Yellow Dwarf Virus (BYDV)
Symptoms: Yellowing or reddening of leaves, stunted growth. Transmission: Aphids. Management: Plant resistant varieties, control aphid population, monitor fields.
Rice Yellow Mottle Virus (RYMV)
Symptoms: Yellow mottling of leaves, stunted growth, yield loss. Transmission: Mechanical, beetles, and water. Management: Use resistant varieties, water management to reduce beetle movement.
Tobacco Mosaic Virus (TMV)
Symptoms: Mosaic patterns on leaves, stunted growth. Transmission: Contact with infected tools, hands, plants. Management: Remove affected plants, sanitize equipment.
Banana Streak Virus (BSV)
Symptoms: Streaking of banana leaves, yield reduction. Transmission: Mealybugs, vegetative propagation. Management: Use tissue-cultured plants, control mealybugs, remove infected plants.
Citrus Tristeza Virus (CTV)
Symptoms: Stem pitting, decline in tree vigor, leaf cupping. Transmission: Aphids, by grafting of infected budwood. Management: Plant certified disease-free stock, control aphid vectors.
Peach Latent Mosaic Viroid (PLMVd)
Symptoms: Mosaic, mottling and puckering of leaves. Transmission: Grafting with infected material, mechanical injury. Management: Use pathogen-free propagation material, avoid tool transmission, remove symptomatic trees.
Tomato Spotted Wilt Virus (TSWV)
Symptoms: Dark spots on leaves and fruit, wilted plants. Transmission: Spread by thrips. Management: Control thrips, eliminate weeds, and use resistant cultivars.
Banana Bunchy Top Virus (BBTV)
Symptoms: Bunchy top of leaves, dwarfed fruit bunches. Transmission: Banana aphid and vegetative propagation. Management: Eradicate infected plants, control aphids, use clean planting material.
Bean Common Mosaic Virus (BCMV)
Symptoms: Mosaic pattern on leaves, malformed pods. Transmission: Seed transmission, aphids. Management: Use disease-free seed, control aphids, practice crop rotation.
Potato Virus Y (PVY)
Symptoms: Yellowing of leaves, leaf drop, reduced yields. Transmission: Spread by aphids and mechanical means. Management: Use virus-free planting material, control aphids.
Cucumber Mosaic Virus (CMV)
Symptoms: Mosaics on leaves, ring spots, stunted plants. Transmission: Aphids, mechanical transfer. Management: Remove weeds, control aphids, use disease-free seeds.
Cauliflower Mosaic Virus (CaMV)
Symptoms: Mosaic patterns on leaves, stunted growth. Transmission: Aphids, seed transmission. Management: Control aphids, practice crop rotation, use resistant varieties.
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