Some of our zucchini plants have what appears to be powdery mildew. Boo. I found a solution recommended in a book entitled Growing Fruits and Vegetables Organically that is 1 quart water, 1 teaspoon baking soda, and few drops of gentle dishwashing liquid. Its more of a preventative spray but can also be used for lighter cases of fungus. You have to reapply after a rain or heavy watering. If it doesn't work- we might just pull out the few plants it has affected.
EDITED: My mother-in-law who is the brains behind the brains of this operation says she doesn't think this is powdery mildew because it would have killed the leaf or be killing the leaf. It doesn't really seem to be bothering the plant. It most likely is a fungus because it rubs off and is not embedded into the leaf. Maybe the leaves aren't dying because of the spray? Anyone have any idea what it is? Let us know.
Most of my squash plants looked like this last year. It didn't affect the growth. They all did fine and produced until the squash vine borer attacked. I think powdery mildew usually starts underneath the leaves.
ReplyDeleteDo you have hard water? We do and sometimes the larger leafed items look like this!
ReplyDeleteSome squash plants have mottled leaves. I know Dark Green Zucchini has mottled leaves, you variety probably does too. It's nothing to worry about.
ReplyDeletehmm none of those three things sound bad. i think we will just let it be.
ReplyDelete