These resources are brought to you by the Cooperative Extension System and your Local Institution

FAQ #499

What causes brown spots with yellow margins on bean leaves?

Related resource areas: Gardens, Lawns & Landscapes


Small, angular brown spots with yellow halos on bean leaves can be caused by halo blight, a bacterial disease caused by Pseudomonas syringae pv. phaseolicola. Other bean bacterial blights have similar symptoms. Use disease-free seed for planting in the home garden and practice crop rotation.

Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.

Comments

Post a comment about this topic

Please keep comments on topic. To ask a question, please use Ask an Expert. All comments are held for moderation. Comments that include profanity, personal attacks or other inappropriate material will not be posted to the site.

Did you find this page useful?

No one has rated this article yet. Why not be the first?

what is this?
not useful
very useful
 1  2  3  4  5