I have a yellow rose bush that is covered in black spot fungus and killing parts of the plant. I do however have tons of new growth on the bush so I a...
Black spot fungus #798573
Asked June 29, 2022, 1:48 PM EDT
I have a yellow rose bush that is covered in black spot fungus and killing parts of the plant. I do however have tons of new growth on the bush so I am hopeful. I am on week three of spraying a fungalcide on it that contains neem oil which is what all of my Google research suggested. However it doesn’t seem to be working. Can you give me any other things to try so I can hopefully save my plant???
Look for a fungicide that contains chlorothalonil or mancozeb. Either of those should give you good treatment. After several treatments if you are still having trouble, give your local extension office a call. Someone can come out and take a look for you. Good luck!
This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.