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Yellow spot on my KnockOut Rose Leaves


Question

spots on my rose leave
Can you help me with this?

Answer
Any number of things could cause those yellow spots. However is almost looks like something was dripped on them such as a spray. There are other rose leaves close by and thy are starting to get yellow markings on them. This is only guess as I don't have any more information in regards to where you garden, but it looks a lot like the roses are re-acting to weather conditions. Often in the spring the weather turns warm and quickly turns back to cold, this will cause rose leaves to go different colours. The spots do not look like a fungal infection and are not a rose disease called Black Spot. I honestly don't think I would worry about them unless they continue to get more. Then please get back to me.

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