Susceptibility of Hop Crown Buds to Powdery Mildew and its Relation to Perennation of Podosphaera macularis.
Gent DH, Claassen BJ, Twomey MC, Wolfenbarger SN, Woods JL. Susceptibility of Hop Crown Buds to Powdery Mildew and its Relation to Perennation of Podosphaera macularis. Plant Dis. 2018 Jul; 102(7):1316-1325.