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Species Allium cepa
Crop Onion
Pest Scientific Name Puccinia allii
Additional Info
Complementary Info
Type Fungus
Pest Classification Is seed a pathway in this crop? Pathway not proven
Main literature references 2-1, 2-44, 2-52, 2-138, 2-141
Remarks Onion is known to be a host of P. allii, however, seed as a pathway is not proven. The association of spores with seed as a factor in the epidemiology of the disease is not certain. A quality systems approach in production of the seeds by crop inspections should reduce the chances of seed contamination.
Detection Is there a seed test? No
If yes, type of test
Main literature references
Remarks No references found indicating a seed test exists for P. destructor on onion.
Risk mitigation Can the pest be managed by seed treatment(s)? Yes
If yes, what type(s) Chemical (seed coating)
Main literature references
Remarks No references found, however, a seed treatment (such as Thiram slurry), used as a prophylactic measure, may be effective against the fungus.

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