What is this on my leaves?

Question

ok well as you might have read in my other questions i have a pumpkin/butternut squash patch in the garden

but i have some white stuff on the leaves... what is it? how can i get rid of it? is it going to take over my plants and kill them all?? i'm a little worried..

http://i79.photobucket.com/albums/j137/__i_love_jimmy__/squash004.jpg

Answer 1

And try watering only in the morning, so no water is left on the leaf at night.  Also try a soapy water spray.  Put a little dish soap in a spray bottle with water and spray daily after watering.

Good Luck.

Answer 2

powdery mildew. better sun, drier leaves, good air circulation and fungicides.