This week the Plant Disease and Insect Clinic at NCSU received a container rose with both downy mildew Botrytis blight. Both are favored by cool, moist conditions, and both can cause extensive damage in a short period of time under production conditions, via the dispersion of airborne spores. Please refer to the recent post on the Plant Disease and Insect blog.
Rose Woes
(Updated: May 6, 2016, 1:43 p.m.)
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