sourceTaxonName: Phytophthora cactorum
targetTaxonName: Malus sylvestris
localityName: United States
referenceCitation: Aldwinckle, H.S., Polach, F.J., Molin, W.T., and Pearson, R.C.. 1975. Pathogenicity of %Phytophthora cactorum% isolates from New York apple trees and other sources. Phytopathology 65:989-994