By Sunbeam
West Midlands,
United Kingdom 
What are the little chocolate coloured spots on my broad beans' leaves, will they do any harm and if so how do I control them?
18 Jun, 2012
Answers
my first thought was chocolate spot. It is a fungal infection. dont know if there is an ameteur gardeners treatment. I dont think it will affect any beans that form.
18 Jun, 2012
Neither do I - just wanted to give the right info!
18 Jun, 2012
Thank you for the help - definitely looks like chocolate spot, all the info online says there's no treatment for amateur gardeners so have sprayed it with fungicide anyway!! and have picked off as many affected leaves as possible and put them in household bin.
19 Jun, 2012
Enjoy your broad beans when they are ready Sunbeam
19 Jun, 2012
Previous question
« Help please! something's eating my honeysuckle flowers On some of the flowers...
Either Broad bean chocolate spot:
http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=89
or Broad bean rust:
http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=112
Take a look at the images on both of the links and see which fits most. From your description probably chocolate spot.
18 Jun, 2012