Try the link below. Click on the Beans category.
Perhaps #180 and #190 - Nitrogen Deficiency?

Here is a link that might be useful: Color Pictures of Mineral Deficiencies in Plants

Hey, thanks! That�s a great link. I never thought about nutrient deficiencies. Before the beans, it was potatoes, carrots, and lettuce . From the pictures, it could be more than just nitrogen. Maybe magnesium, and phosphorous too. Any idea of what fertilizer to use. All I have is garden tone 3-4-4, and miracle gro, which I don�t want to put in the soil. I top dressed w/compost before planting, but I guess tat wasn�t enough. This would be a nice fix; I thought the plants were goners. Assuming, of course that this is the problem

I've had problems in the past with lower leaves on bean plants turning yellow, getting brown spots and then falling off. After doing some research I concluded that it was due to a fungus that was in the soil. When it rained, the fungus splashed up on the leaves and infected them. Once I started mulching (wheat straw), the problem was resolved. You might want to try that, since mulching has other advantages too.

Soil testing is the best way to find out if you have a nutrient deficiency. You can buy a soil tester (although they're not all that accurate with nutrients but are pretty accurate with regard to pH), or you can contact the local extension service. My local services does it for free, tho you have to wait.

Cute dog, by the way!

I thought it might be something like what you described, so after clipping the infected leaves I�ve only been watering right at ground level. I also applied the disease control spray and fertilized heavily just to cover my bases. We�ll see what happens. BTW, the beans are mulched heavily, just not with straw. I mulch with a heavy layer of compost to keep down weeds and it does a good job of holding in moisture. Not to mention the nutrient benefits. Maybe something splashing up from the compost is doing it. I�ll just have to wait and see. It would suck to lose the plants, but it would be worse to not know why. I don�t want to make the same mistake next time. Thanks for the compliment on the dog. They are my rabbit and squirrel removal team.

Red Dogs

{{gwi:92400}}

I have that same look at the base of my rattlesnake pole beans. I remove the leaves, as I believe it's a fungal attack. I've had trouble finding good information of what it 'certainly' is...?

Nice pups!

That snow looks really nice right now.

Love the dogs!

Thanks, that�s funny. We don�t get much snow here in Virginia Beach. That was a couple of years ago; I�d kill for some now. Although, at least we have power and air conditioning. I know a lot in Virginia and up north still don�t have it. I just finished mowing the lawn and I can�t imagine being that hot with no way to cool off for days on end.
No cold water! Just kill me.

Check bean mosaic virus images...several of them...for comparison.