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Oklahoma Lawn Weed Identification

Weeds are the undesired plants in lawns that can affect the health of grass by competing for nutrients, water and space. A combination of chemical and cultural management practices is often required to keep weeds in check.
  1. Identification

    • Oklahoma lawns are prone to infestation from a variety of weeds. These include dandelion and henbit.

    Description

    • Henbit is an annual or biennial, broadleaf weed with a mature height of about 1 ½ feet, square stems and 1 inch long, hairy, egg shaped foliage. The red to purple shaded flower clusters appear from March to August. Dandelion is a perennial broadleaf weed with distinct bright yellow, 1 ¼-inch flowers that bloom throughout the year in milder weather. The foliage has serrated edges and grows in clusters at plant base.

    Control

    • The University of California Extension lists the use of isoxaben, 2,4-D, MCPA and triclopyr for the control of dandelion in lawns. Use MCPP, 2, 4-D or dicamba to control the growth of henbits in lawns.