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Q.Rose disease or pest and how to treat

Zone Plympton, South Australia | Anonymous added on May 19, 2019 | Answered

I am familiar with the appearance of black spot, powdery mildew and most other diseases or pests we have had at one time or another on our bushes, but I am unable to find a picture of anything presenting like this…..It is only around the perimeter of each leaf on the bush. My best guess is black spot because some of the other leaves have black spot or Could it just be the remains of the leaves getting burnt in some severe heat we had earlier in the year here in Adelaide. I am trying to determine whether to treat in any way given that the bushes will soon be pruned.

A.Answers to this queston: Add Answer
Answered on May 20, 2019
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