My knockout roses are dying

My knockout roses are dying one branch at a time. Many of the leaves have holes and grey-white spots. The branches on several of the bushes have withered and died. There is some new growth and buds on some of the bushes.

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1 Comment To "My knockout roses are dying"

#1 Comment By roseman On 06/17/2014 @ 11:32 am

It sounds like you have insect and fungus problems with your rosebushes. The new growth shows that they are fighting whatever it is to try and survive. I would suggest spraying all of the rosebushes with an insecticide and then spray them with a good fungicide about 5 days later. Make sure to water the rosebushes well prior to both applications. Please check out these articles links:

https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-bush-diseases.htm ^[1]

Be sure the rosebushes are well watered and well fed. Also keep an eye on them as I have seen something similar to what you describe happen to the canes when a dog as relieved himself upon the roses.

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