It would be common for organic butternut squash in Pennsylvania to be shutting down from powdery mildew pressure by mid-September. While neighboring growers had crops that collapsed completely, we could find no powdery mildew in this crop at all. The grower credited foliar applications of SeaShield, Micro 5000, HoloCal, MicroPak, and SeaStim for the plant health and vigor we observed in this 2017 crop.