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Sericea Lespedeza

Inspect all pastures, CPR fields and rangelands in late July, August and September for the presence of sericea lespedeza. Early detection is essential to economical control.

Appearance

Sericea lespedeza is a perennial with erect stems up to five feet tall. The leaves, with three leaflets are less than 1 inch to 1 1/2 inches long, with white petals 1/4 to 1/2 inches wide. Flowering occurs from mid or late July to October and may be tinged with purple but always dry to yellow. Inspect all pastures, CPR fields and rangelands in late July, August and September.

Control

Sericea lespedeza reproduces primarily by seed. Seeds move with water, infested hay, birds, and wildlife. The hard seed passes through the digestive tract of animals. Mowing in the late bud stage from mid-July to late summer should reduce the vigor of the infestation. The use of a sickle mower is preferred.

Treatment

Herbicide Recommendations:

  • Remedy at 1 to 2 pints per acre
  • Escort at 1/2 to 1 ounce per acre
  • The use of a polymer type deposition aid may enhance control

Thorough coverage is essential for good control.

Both herbicides are available at the Pratt County Weed Department on a cost share basis. For more information regarding this noxious weed you can either contact our office, or the County Weed Directors Association of Kansas, or go to the Kansas Dept. of Agriculture Noxious Weed Control Website.

  1. Pratt County

  1. 300 S Ninnescah

  1. Pratt, KS 67124

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