Sericea Lespedeza Program
Perennial, stems erect, to 5 ft. tall, appressed hairy only along the ridges on the stem, leaves with 3 leaflets, leaflets less than 1 in. long and less than ¼ in. wide, wedge shaped (cunate), flowers few (1-4) in the axils of the leaves from mid or late July to October, petals yellowish or tinged with purple, about ¼ in long, fruit (pod) about 1/8 in. long, roundish with pointed ends in outline, flattened.
PREVENTION OF SPREAD OF SERICEA LESPEDEZA
Sericea lespedeza spreads primarily by seeds. The method of seed dispersal is probably by animals and the seeds will float in water and can be carried downstream. Persons planting mixtures of seeds for erosion control and wildlife habitat should ensure sericea lespedeza is not included in the mix.
SERICEA LESPEDEZA CONTROL PRACTICES
Control of sericea lespedeza shall mean preventing production of viable seeds.
CULTURAL CONTROL PRACTICES
Rangeland - Prescribed burning at the proper time (late spring) followed by intensive early stocking (double stock until July 15 and then remove cattle) may reduce the occurrence of sericea lespedeza. Mature cattle grazing early in the season are more apt to utilize sericea lespedeza.
Tame pastures - Proper fertilization and grazing during April and May may reduce the occurrence. Late grazing or no grazing will increase sericea lespedeza.
Grazing infested areas with sheep and goats will provide effective control of sericea lespedeza.
Mowing in the late bud stage for 2 to 3 consecutive years from mid-July to late summer should reduce the vigor of the stand.
HERBICIDES APPROVED FOR CONTROLLING SERICEA LESPEDEZA
Follow label directions and precautions with all chemicals. These chemicals are State approved for the cost-share program.
Pasture and Rangeland
Metsulfuron Methyl (Escort)
Triclopyr (Remedy, Garlon)
Triclopyr + Fluroxypyr (Pasturegard)
Garlon 4 (Triclopyr). Apply at 1 to 2 pints per acre during the late summer while the plants are in flower.
BIOLOGICAL CONTROL PRACTICES
There are no biological controls approved for sericea lespedeza at this time. Adopted by Board action dated July 28, 1992.
COSTS PER ACRE
Inquire at Weed Office (620-382-3190)