Late summer a common time of year for powdery mildew to show up and it's spreading quickly on our pumpkin leaves.
A quick Google search netted a couple possible homemade solutions:
1/4 of an ounce of baking soda mixed with 1 gallon of water and sprayed on the leaves
50/50 solution of milk and water also sprayed on the leaves
We're trying the baking soda solution and Liz, our master gardener, started the treatment today.
Crossing our fingers that it at least slows the spread of mildew long enough to harvest some pumpkins.
If anyone else has had success with another remedy, we'd love to hear it.