Weed Control on Pastureland

Research has shown that chemical weed control on pasture and hay land has not returned enough profit to pay for the chemicals.

Maintaining a productive grazing or haying resource requires the control of undesirable plants. Several control measures are available at a cheaper cost than chemicals.

Control methods can be grouped into: Grazing Management, Mechanical, Prescribed Burning, and Chemical. Combinations of these methods can be more effective than individual methods.

The time and amount of grazing determine the growth potential of plants. Grazing management such as the proper season of use, correct stocking rates, proper fertilization, and similar practices will give the only long term solution to weed control in pastures.

Research & experience has shown management to be the major factor in controlling weeds and brush. Many management decisions influence the invasion of weeds and brush. Managing for the ability of grass ( and other forage plants ) to grow and produce their potential will help control many invasion weed problems.

Mechanical Control is the physical destruction of the plant by mowing, Hand cutting, bulldozing, or similar methods. These are usually temporary, time consuming, expensive, and may require frequent retreating.

Prescribed burning has long been a brush & weed control tool in Eastern Kansas. Proper timing and safety requirements are essential to be successful.

Chemical controls are most effective when used after proper grass management corrections have been made and when the chemicals are used according to the label directions. Proper rates and using good equipment that will apply it properly will increase the effectiveness.

See your local Extension Office for the current Chemical Weed Control book for recommendations and instructions.

Leon Stites, HLStites@oznet.ksu.edu
County Extension Agent, Agriculture
Leavenworth County, Kansas
Kansas State University Research and Extension