I was hoping that someone would have some advice. I have 2 cuke plants, planted about 3 weeks apart. I was away for several days (having thoroughly watered and mulched with straw beforehand) and when I arrived home I noticed that the older plant had spotted leaves, and some of the leaves were totally browned and crispy. The newer plant has developed the same spots in the past 2 days.

Here are three photos (the last is blurry because of the wind, but shows black moldy areas under the leaf).

http://share.shutterfly.com/action/welcome?sid=0AZNG7Ro4cuGLCYA

Any suggestions? I have been on several sites and cannot find a clear answer. Perhaps there are 2+ problems and that is why I cannot get a definitive "e-diagnosis".

Thanks so much!