What to Do About Powdery Mildrew on Squash Leaves

There seems to be a lot of 'talk' on gardening websites about this common problem, but not many folks have a sure fire answer about what to do when your zucchini, yellow squash and cucumber plants develop a white, powdery mildew on their leaves. Some gardeners have said that it's a natural occurrence as temperatures begin to drop. Others say not to plant too closely together, as overcrowding can lead to the fungus. Still others have said their plants just develop this at the end of the season, so they do nothing.

Here in the Denver area we've had pretty steady high temps...fortunately for my veggies, but unfortunately for me! And I certainly hope that mid-August isn't to be considered close to the end of the growing season! Can't do anything about overcrowding at this point, unless I just want to get rid of otherwise healthy and productive plants. So my husband and I decided to try a product from BiOWiSH™ that is newly available in the US: BiOWiSH™ Crop. As always, we strive to make our gardening 100% organic, and so we're happy to be able to use BiOWiSH™ products because they're all 100% organic and environmentally safe. Some of the benefits of Crop include:
•Increases nutrient availability
•Reduces habitat for fungal spores
•Improves yields
•Improves plant health
•Increases total number of crops per annum
•100% natural and biodegradable
•Non-toxic and chemical-free
We saw a huge difference within 24 hours! The Powdery Mildew was almost completely gone. And we've got lots of lovely flowers on the plants, which I hope will turn into even lovelier zucchini and yellow squash...since I haven't made a single batch of zucchini bread yet!
Happy Composting!