Yet another disease identification question
 

Ok so reddish brown on my squash,my guess was rust but dosent look like the pics I seen. The other are my Orange Jazz tomatoes. The yellowing is only the new growth and just started today. It has been raining a lot and is very humid now. Im going to spray fungicide tomorrow but was curious what would effect new growth only. As always thanks for help and/or opinions!

Looks like it might be Downy Mildew to me. High humidty sure does make it hard to garden in the South. I'd rfemove the infected leaves carefully and burn and then use b54red/Bill's bleach spray recipe.

Maybe somebody else will chime in or even Bill.