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Species Cucumis melo
Crop Melon
Pest Scientific Name Alternaria alternata f. sp. cucurbitae
Additional Info
Complementary Info
Type Fungus
Pest Classification Is seed a pathway in this crop? Pathway not proven
Main literature references 4-9, 4-125, 4-126, 4-134
Remarks A. alternata f. sp. cucurbitae is the causal agent of Alternaria leaf spot. The fungus infects melon although the distribution is limited. The primary information for seed as a pathway is a reference wherein untreated melon seed was plated onto a general agar medium. Alternaria was found as a superficial contaminant. No other references found indicating seed as a pathway for A. alternata f. sp. cucurbitae in melon. A quality systems approach in production of the seeds by crop inspections and careful selection of healthy fruits should reduce the chances of seed contamination. Commercial harvesting, leaning and sanitization of melon seed would reduce the threat 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 A. alternata on melon.
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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