Does this look infected? August 10, 2010 Whatever this is can’t be good. My summer squash plants look a little off. And in possibly related other news, I’m standing ankle deep in water next to the garden beds.
Oooh, our leaves look similar to that too. I think it might be powdery mildew, but I don’t know for sure, since I’m so new to gardening.
It looks like powdery mildew to me. Best way I find to treat it is to make up a solution of 1 part milk to 9 parts water and spray the leaves daily until it gets knocked back – Hope that helps