My zucchini this year has been failing big time. Last year we only got 1 big zucchini. This year I was determined to do better. However I have yet to get 1 zucchini and all of our different squash plants have a powdery mildew. The summer squash is still producing despite the mildew but not the zucchini. I have been cutting the foliage off that won't rebound from the mildew. I have found one organic spray that seems to have been helping a little bit. The plant has been flowering but I am afraid that this plant is a goner. I read that squashes could be caged to reduce needed space I'm not sure if this has had an effect on the mildew.