sourceTaxonName: Alternaria porri
targetTaxonName: Allium cepa
localityName: United States
referenceCitation: Hay, F.S., Sharma, S., Hoepting, C., Strickland, D., Luong, K., and Pethybridge, S.J.. 2019. Emergence of Stemphylium leaf blight of onion in New York associated with fungicide resistance. Pl. Dis. 103(12):3083-3092