What's killing my bean plants

Asked June 21, 2018, 4:35 PM EDT

Last year I ordered several exotic bean seeds (for example, Rio Zape) and grew lovely plants six feet high, but before they fruited they were attacked by small (2-3 cm) yellow fuzzy beetles who devoured the leaves, leaving only skeletal midribs and major veins. They proliferated rapidly, killing the plants in 2-3 days. While I doubt that these are viburnum leaf beetles, I haven't ruled it out. Do you have any idea what they are and how they can be controlled?

Harford County Maryland

1 Response

Sounds like Mexican bean beetles, which beans almost always get. Here is our page to help understand the life cycle and how to control them: https://extension.umd.edu/hgic/mexican-bean-beetle-vegetables

The row cover works very well.