Rose plant leaves has white spots - Knowledgebase Question

Richmond hill, ny
Question by southgirl523
August 4, 2007
My rose plant leaves has white spots but is still flowering.


Image
Answer from NGA
August 4, 2007

0

Unfortunately, based on your description I am not certain what is happening to your rose. Sometimes a chemical spray or dusting will leave a residue that looks like white spots, these can be rinsed off with water from the garden hose.

Or, your rose might be suffering from powdery mildew. This fungal infection leaves a white powdery layer on the foliage and the foliage tends to be distorted as well. This can be treated with a baking soda based fungicide such as Remedy.

Or, it might be evidence of a pest problem such as thrips.

Since this type of damage is difficult to diagnose long distance, I would suggest you consult with your local Cornell cooperative extension to obtain a more specific identification of the problem. Based on knowing that, they can help you decide what to do. If a chemical control is needed, they will have the most up to date information on what to use and how/when is best to use it for maximum results.

I hope it is nothing too serious.

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:

Username:

Password:

[ Join now ]

Today's site banner is by Fleur569 and is called "Working with Purple & White"