Cucurbit downy mildew - ok, cucurbits are cucumber, melon, and squash plants. Downy mildew starts as white spots under the leaves, then quickly eats its way through the leaves. It has been spotted in NC and is affecting basil as well as cucurbits.
Much to come on bug control: cypress mulch from E & S is a great start!
Also, quit killing spiders, black ants, and ladybugs!