Publications for:

pest = Plasmopara halstedii
crop = Rudbeckia (crop)
country = U.S.A. (NE)

found 3 publications:

2015

First report of downy mildew caused by Plasmopara halstedii on native Rudbeckia fulgida Aiton var. speciosa (Wender.) Perdue in Indiana
Plant Disease (2015) 99 (9), p. 1278
publishers website - pestinfo wiki

2014

First report of downy mildew caused by Plasmopara halstedii on black-eyed Susan (Rudbeckia fulgida cv. 'Goldsturm') in Maryland
Plant Disease (2014) 98 (7), p.1005
publishers website - pestinfo wiki

2006

Downy mildew of Rudbeckia fulgida cv. Goldsturm by Plasmopara halstedii in Virginia
Plant Disease (2006) 90 (11), p.1461
publishers website - pestinfo wiki