Disease
Chocolate spotBrown spots on broad bean leaves

Small chocolate-brown spots on the leaves, worst in damp, crowded autumn sowings.
When it shows up: Autumn to spring, in damp weather
What to do
Give plants room: don’t sow closer than 20 cm.
Pick off the worst leaves.
Most plants still crop well, so there’s no need to pull them.
Not quite it?
These look similar. Compare the photos.


