Posted: 12/08/2014 at 06:13
Most of us are based in the UK - French Gold pole bean is not a commonly grown variety over here and although we've had a (for us) hot and dry summer, I suspect that it's not as hot and dry as yours.
I suspect you may be right about the over-watering. Beans need plenty of water, but they need a lot at later stages when they're flowering and setting beans - not really so much early on.
I think you'll find it helpful to ask around locally as conditions, diseases and pests over here are quite different to the ones where you are.
However, I'd like to wish you good luck with your beans - I love beans and am growing two varieties this season - Buerre de Rocquencourt (a yellow wax bush bean) and Emergo, a white-flowered runner (pole) bean. The wax beans are cropping well - they're a variety recommended for the cooler temperatures we have over here - and the Emergo are just beginning to set some beans. I have to make room in my freezer!
It would be interesting to know how you get on with your beans - good luck