Just a question for all you rose experts out there. This is parfum de l’hay. It smells as great as ever, but all this growing season the blooms have been struggling with this fungus. How and when do I correctly treat this? As you can see the foliage looks pretty clean.
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I’m puzzling over a reply, because a spray of course will stain any existing open flowers – and I’m not sure one spray will control it.
For over-the-counter, I’d try Liqui-Cop as buds appear, both in Spring and after dead heading.
There’s also some pricey commercial systemics if you’re interested.
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I think I will try the Liqui-Cop next season. I have yet to actually spray my roses with anything besides foiler feed, so it may work. My children absolutely love deadheading, so that routine maintenance always gets done very well. I believe this is my third flush of blooms this year. So far it’s my only variety infected. Thank you.
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In my environment, foliar feeding roses is usually followed by fungal infection.
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The weather described in that write up was a dead ringer for this summer.
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