Some effects of moisture and host plant susceptibility on the development of powdery mildew of roses, caused by Sphaerotheca pannosa var. rosae /
Marlin N. Rogers.
|Main Author:||Rogers, Marlin N.|
Ithaca, N.Y. : Cornell University Agricultural Experiment Station, New York State College of Agriculture, 1959.
Powdery mildew diseases
Roses > Roses / Diseases and pests
37 p. ;
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|Full viewv.363(1959)||University of Illinois at Urbana-Champaign|