What medicine should be used for black spot on roses
This article guide: A little green plant maintenance experience on what medicine should be used for black spot on roses, and the following is a comprehensive introduction.
What medicine should be used for black spot on roses
When roses are infected with black spot disease, you can use zineb, DuPont Fustar, and Bordeaux mixture for prevention and control, and also use methyl thiophanate regularly. While using the medicine, you should also prune the diseased leaves, which can improve the effect of prevention and treatment. This kind of disease is generally caused by getting wet in the rain, so it is important to keep the plants dry during maintenance, ensure good ventilation, and let them get plenty of sunlight.
The detailed explanation provided above on what medicine should be used for black spot on roses is for reference and suggestion only!