Ohio State University Extension Bulletin

Disease Control in the Landscape

Bulletin 614

Figure 77. Figure 78.
Figure 77. Phytophthora stem canker and dieback of rhododendren. Figure 78. Above ground symptoms of Phytophthora root and crown rot on rhododendron.
Figure 79. Figure 80.
Figure 79. Black spot on rose leaves. Figure 80. Cane canker on rose cane.
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