Presentation on theme: "Tomato Spotted Wilt Virus Spotted wilt of tomato was first described in 1915 in Australia Today it is one of the 10 most economically destructive plant."— Presentation transcript:
Tomato Spotted Wilt Virus Spotted wilt of tomato was first described in 1915 in Australia Today it is one of the 10 most economically destructive plant viruses Worldwide losses exceed one billion dollars annually Host Plants 800+ known host species (80+ plant families) Both monocots and dicots, includes horticultural and agronomic crops Found in temperate, subtropical and tropical regions of the world
Tomato Spotted Wilt Virus (cont.) Vectored and spread by thrips Tobacco thrips (Frankliniella fusca) Western flower thrips (Frankliniella occidentalis) Lifecycle (20-30 days from egg to adult)
TSWV in Peanut (Arachis hypogaea L.) Spotted wilt caused by TSWV in peanut First observed in 1971 Became one of the most serious diseases in 1980s In Georgia, spot wilt lead to a 7.5% reduction in crop value that equals $31.7 million in losses (2005)
Management of TSWV in Peanut Single measure: control of the thrips vectors Integrated management Make use of highly resistant cultivars Chemical practices Cultural practices One of the most important factors Deployment of resistant cultivars
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