Chickweed, common


Image: Common chickweed in alfalfa

Herbicide resistant (ALS/Group 2) common chickweed is an agronomic problem is small grains in the mid-Atlantic US.

Resistant populations:

  • Group 2 (ALS herbicides – examples: FirstRate, Classic)

Locations of resistant populations:

Delaware, Maryland, Pennsylvania, Virginia


Common Chickweed – Weed Identification Guide – Virginia Tech University

Common Chickweed – Worst Weeds – Michigan State University

Pennsylvania Wheat: ALS-Resistant Chickweed on Increase – Penn State University