i agree with trev, my knuckle head pumpkins have the same leaves, and my zucs same. i did notice on my ag's they had some hard water spots.

Thanks trev, that's pretty much the same patterns I see spreading all over.

Hmm, I did some research just now on why pumpkins do that mottling with their leafs. From what I understand, no one knows for sure, there are various theories though.