Guide For Tomatoes

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T O M AT O E S White mycelium and sclerotia are usually observed in and on infected fruit. Disease Cycle The fungus infects fruit that comes into contact with infested soil. Fruit lesions appear sunken and slightly yellow with a ruptured epidermis. Lesions are water-soaked, soft and often star-shaped. Infected fruit collapses within three to four days. Brown lesions with surface mycelium appear on foliage that contacts infected soil. The fungus can survive for several years as sclerotia in soil and on host debris. Sclerotia serve as the primary inoculum. The pathogen may be disseminated through soil movement by equipment or by water. Southern blight is a monocyclic disease. Conditions for Development Optimum conditions for infection include moist air and temperatures between 86º to 95º F. S O U T H E R N B L I G H T 55
T A R G E T S P O T 56 Target Spot – Corynespora cassiicola Symptoms Small water-soaked lesions appear on the upper leaf surface. They gradually increase in size, becoming round and pale brown. Conspicuous yellow halos develop. Lesions may coalesce, causing tissue collapse. Petiole and stem lesions are brown and oblong and may girdle and kill leaflets. On young fruit, lesions first appear as dark, pinpoint brown spots. They may enlarge and develop into sunken lesions. Ripe fruit develops large round lesions with pale brown centers, which may crack. T O M AT O E S
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Disease Identification Guide For To
Page 3 and 4: T O M AT O E S Syngenta Crop Protec
Page 5 and 6: S E A S O N A L C A L E N D A R 4 D
Page 7 and 8: T R E AT M E N T S Treatments
Page 9 and 10: Actigard Recommendations for Tomato
Page 11 and 12: Bravo Weather Stik Recommendations
Page 13 and 14: The combination of certain environm
Page 15 and 16: Quadris Recommendations for Tomatoe
Page 17 and 18: Quadris Opti Recommendations for To
Page 19 and 20: Revus Top Recommendations for Tomat
Page 21 and 22: Ridomil Gold Bravo SC Recommendatio
Page 23 and 24: Ridomil Gold GR Recommendations for
Page 25 and 26: Ridomil Gold MZ WG Recommendations
Page 27 and 28: Ridomil Gold SL Recommendations for
Page 29 and 30: A N T H R A C N O S E 30 Anthracnos
Page 31 and 32: B A C T E R I A L S P E C K 32 Bact
Page 33 and 34: B A C T E R I A L S P O T 34 Bacter
Page 35 and 36: B L A C K M O L D 36 Black Mold - A
Page 37 and 38: B U C K E Y E R O T 38 Buckeye Rot
Page 39 and 40: D A M P I N G - O F F 40 Damping-of
Page 41 and 42: E A R L Y B L I G H T 42 Early Blig
Page 43 and 44: Gray Leaf Spot - G R A Y L E A F S
Page 45 and 46: G R A Y M O L D 46 Gray Mold - Botr
Page 47 and 48: L A T E B L I G H T 48 Late Blight
Page 49 and 50: P O W D E R Y M I L D E W 50 Powder
Page 51 and 52: S E P T O R I A L E A F S P O T 52
Page 53: S O U T H E R N B L I G H T 54 Sout
Page 57 and 58: W H I T E M O L D 58 White Mold (Sc
Page 59 and 60: Syngenta Seeds R O G E R S
Page 61 and 62: T O M AT O E S Variety Description
Page 63 and 64: T O M AT O E S Variety Description
Page 65 and 66: Abbreviation Key: Fol: Fusarium wil
Page 67 and 68: T O M AT O E S Syngenta Resources S
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