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Powdery mildew
I am a relatively newbie to gardening, doing lots of learning by mistake. Can anyone offer some advise on a treatment for powdery mildew which seems to affect a few plants in my garden.
My garden is completely surrounded by conifers 20ft high which gives me great wind protection but am wondering if it is also causing or aiding the powdery mildew with a lack of air circulation? Or if it is something else I am doing.
The latest victims are 6 Ajuga plants which were growing so well.
I like to be organic and was wondering if anyone had had success with yellow sulphur, just found it on Gardening Naturally website.
Of if there is something else I could do?
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Hi pat, I had some plants last year that suffered with powdery mildew, Clematis, Delphinium and phlox. I used Diluted milk with water. roughly 1/8 or 2/8 milk into water and sprayed the foliage, It took around 3 applications over 10 days, and it started to clear very quickly after then, Its best to treat ASAP before it spreads like wildfire. I found that information on the web and I was sceptical it would work, I was just about to buy a spray from my garden centre but thought I'd give it a go first as a lot of people recommended it and said it worked. You can also try washing it off the leaves, Painful job but worth it, As it can make beautiful plant foliage look quite ugly. So far all the plants that were infected with powdery mildew this time last year are absolutely fine and look stunning. So it might actually prevent it coming back too. Let us know how you get on. Good luck. David.
Powdery mildew often affects plants in dry weather. The conifers are no doubt making your garden soil drier and ajuga loves damp growing conditions, so watering more might help too.
David the Potting Shed Potter will def try that. Super thank you.
I tried the milk spray last year on a Honeysuckle and it did work