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Species Daucus carota
Crop Carrot
Pest Scientific Name Alternaria dauci
Additional Info
Complementary Info Synonym: Alternaria porri f. sp. dauci
Type Fungus
Pest Classification Is seed a pathway in this crop? Yes
Main literature references 7-12, 7-13, 7-14, 7-50, 7-63, 7-64, 7-110, 7-111
Remarks Alternaria dauci is the causal agent Alternaria leaf blight of carrot. Seed is a known pathway for Alternaria dauci in carrot and the recommended management strategy is to evaluate seed productions by field inspection or seed testing of a representative sample of each seed lot.
Detection Is there a seed test? Yes
If yes, type of test Incubation
Main literature references 7-26, 7-27, 7-52
Remarks ISTA methods are described and a seed test using a blotter method is commercially available.
Risk mitigation Can the pest be managed by seed treatment(s)? Yes
If yes, what type(s) Physical, Chemical (seed coating)
Main literature references 7-34, 7-35, 7-36, 7-37, 7-40, 7-42, 7-53, 7-54
Remarks Seed treatment with fungicide(s) or heat can be effective against the fungus.

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