2 Related Pests
Acidovorax avenae subsp. citrulli
Acidovorax citrulli, Pseudomonas avenae subsp. citrulli, Pseudomonas pseudoalcaligenes subsp. citrulli
Midwest and Southeast States, CA, OR
Wild cucurbit species and cucurbit volunteers are known hosts. Occassional reports, but unsubstantiated infections in pepper and tomato
watermelon, melon, squash, pumpkin, cucumber, root stock.
Though references were not found, seed as a pathway through seed surveys has been established and accepted for this pathogen
Seedling Grow out and PCR wash are NSHS standard tests (PSDMAC-4)
Seedling Grow out, PCR tests, Immunomagnetic separation-PCR wash
Clean Seed Programs including exclusion, cultural practices, sanitation and copper sprays when needed, decreased seed infestations but did not eradicate are used for other Cucurbit crops.
Alternaria brassicae var. nigrescens, Macrosporium cucumerinum, Alternaria loofahae
Distribution information from USDA GRIN
Pathway not proven. According to Thomas, 1996, artificially infested seed has resulted in seedling infection, but infection was low. Spread from naturally infested seed has not been demonstrated.
Seed treatments are often inferred as effective, but no data exists and seed has not been proven to be a pathway. Â
A quality systems approach in production of the seeds with crop inspections, careful selection of healthy fruits and seed conditioning and cleaning should be used to ensure seed quality and reduce unwanted seed contaminants have been used for other crops
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