Re: Purple cone flowers-witches broom
>Problems:
>
>Leaf minors powdery mildew-darn woodchucks, bacterial spots, root aphids, gray
>mold and vine weevils. I have some that have developed stunted growth with
>malformed flower heads that are green - I think it is caused by the cresol
>from the light post they are growing next to or from some viral infection.
>Plants self sow freely. They attract bumble bees (apparently this is a problem
>to some people)
Is there anything one can do to counteract the cresol on utility and
fence poles?
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