It has been a while since Plants On Deck descended into the university extension wormhole. Not because there haven’t been reasons to, but because it’s a great big time suck that can usually be summarized thusly: your plants are sick. There is no cure. They will die. (Therefore, do we really want to know what those spots on the blueberry leaves are?)But once again, just as the Supremo, Speedy Green, and General Lee cucumbers are producing, their leaves are yellowing, spotting, and withering. It’s a good thing that a good half dozen fruits have been harvested already (testers like the Supremo best — light, citrusy, great crunch) and another dozen are on the vine, because things aren’t looking too promising.
While mildew isn’t readily apparent, POD’s plants looks suspiciously like the ones described on Clemson’s and the University of Minnesota’s extensions as having downy mildew.
They’re sick. There is no cure. They will die.