Pumpkin dying at roots, grey spots on leaves.
I have pumpkins that I planted around late May, the plants have been growing great, bigger each day. I have Jack O lanterns, and Big Max. I have about 5 pumpkins per species, I am new to pumpkin growing and don't know what is good or not. I have some pictures of the pumpkins growing and the plant itself, my concerns are I now have grey powdery spots on my plant, (powdery mildew?) if so what do I do? Another thing is while the front of the plants looks healthy and green, the back is slowly dying off. Is this normal? Also, I was wondering if my pumpkins looked well, but I don't know how to post any pictures.