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Whats gone wrong with my runner beans? some are short stumpy things but most have reached the top of my poles but look rather sick. Leaf cover poor and what there is looks yellow with brown spots all over, I usually have a decent crop but this year they look desperate. i have`nt let them go short of water and the ground was well prepared over the winter with manure, compost and kitchen waste. Before planting I dressed the site with growmore.  :'(

Sounds like Halo blight, look at

http://www.gardenaction.co.uk/fruit_veg_diary/fruit_veg_mini_project_october_1b_runner_bean.asp

Thanks for your impute, I`v looked up the link you gave me and yes it looks like the cause, :'( oh dear now I got to rip the lot up and burn them, I bought the seed at our local garden shop it appears that the fault is to do with the source of the seed so in future I`ll be getting my seed from a proper seedman. Good job I planted Dwarf  French Beans they are not affected so I`ll have some beans to harvest. Thats what gardening is about learning lessons and not making the same mistakes again.