John D. Byrd, Mississippi State University, Bugwood.org
Lawn burweed is a low-growing winter annual with branches that go every which way. It germinates when the temperatures begin to cool and reproduces by seed. It grows very quickly in the spring and has tiny burs that are very hard to see. However, they can be felt quite easily if you come across a patch.
Frequent mowing, light watering and proper fertilization can help to eliminate burweed from lawns and other turf areas. When it develops burs, this weed is difficult to control. Several applications of postemergent herbicides may be needed. Applying a pre-emergent herbicide in the fall prior to germination can help to reduce this weed in the lawn.