In our Connecticut garden, black spot is a common disease on rose bushes. I am sharing with you how I do the prevention/sanitation. I also address biological and chemical control of this pesky disease.

0:00 What black spot is/ How it looks
2:52 Life cycle of black spot disease
5:08 Treatment of black spot
9:06 Prevention of black spot
12:09 Biological control of black spot on roses
15:06 Chemical control of black spot on roses
17:32 What to do with completely defoliated rose

свернуть