Our zucchini has been pretty nice so far this year. I'm curious, though- the leaves were patterend with silvery spots as they got bigger. I tried to see if it was powdery mildew by rubbing it- the spots seemed part of the plant, rather than something external, that could be rubbed off. Are there zucchini varieties that have silvery spots on the leaves? Or were these plants already diseased? We bought these at Lowe's this spring- they're "Bonnie's" and do not list a particular variety on the label. Well, now the two are wilting fast, and overnight (literally) half the leaves have turned into some sort of crumpled-up yellow mess. The fruits, which looked soooo good yesterday (I was going to pick some of them today) are also turning yellow. What is this? Is it a danger to the yellow squash and pumpkins that I have growing nearby? I also have dill, blueberries, tomatoes, and peppers and cucumbers in close proximity. Is my entire garden in danger? I'm considering pulling up the zucchini plants and tossing them into the trash (as poopsed to the compost bin), even the remaining good one, as I'm pretty certain that it, too, will show this disease or whatever it is before too long. The rest of the garden is looking pretty good so far, and I'd rather give up on the zucchini, and the yellow squash too if necessary, than have the possibility of whatever this is spreading and destroying everything/anything else.