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+--- Thread: Any horticulturalists in the house? (/showthread.php?tid=188953)
Any horticulturalists in the house? - PeterB - 03-10-2016
What is this stuff on my strawberry geranium, and how do I get rid of it?:
http://imgur.com/a/QS4Nw
Re: Any horticulturalists in the house? - freeradical - 03-10-2016
Powdery mildew?
Re: Any horticulturalists in the house? - OWC Jamie - 03-10-2016
yeah that looks like powdery mildew. You can hit it with a fungicide.
Milk diluted to 10% with water is supposed to help and sprayed on it every couple of days is supposed to help.
It commonly plagues zucchini leaves but I've never seen the milk spray work.
Dampness, especially overnight in cooler temps is an environment it thrives on.
Re: Any horticulturalists in the house? - neophyte - 03-10-2016
We use Safer brand fungicide for this. It's safe for organic gardening, relatively environmentally friendly.
Re: Any horticulturalists in the house? - Lizabeth - 03-10-2016
Do you have a non-bigbox local nursery you can visit with a leaf? It does look like powdery mildew
http://www.wikihow.com/Get-Rid-of-Powdery-Mildew-on-Plants