[edweather]

Everything was perfect until a few days ago. Noticed this on the backside of 3 of 4 plants. The only plant unaffected yet, is the potato leaf variety. I sprayed with Daconil last week, and copper last night. The Rutgers is the worst. Leaves are yellowing, and then turning brown on the surface. Looks like small brown spots on the backs of the leaves. Not sure if bacterial or fungal. My best guess is some kind of "spot." I pruned some of the foliage on the less affected plants, but should probably do some severe pruning on the Rutgers. Hopefully this isn't chronic, but it's spreading fairly fast. It's odd, because the weather has been great, sunny and warm with not too much humidity. Any help is greatly appreciated. Thanks, Ed