Atrazine has a pre-and post-emergent effect on weeds, which means it helps to control both emerged weeds and weed seed. For maximum effect, atrazine should be applied once in the fall and again in late spring (after spring green-up). Augustinegrass and centipedegrass up to two times a year. The same precautions apply for triclopyr as with the use of the three-way herbicides for lawn safety.Ītrazine can be applied to St. These latter two products are also labeled for use on zoysiagrass and bermudagrass. Bonide Chickweed Clover & Oxalis Killer Concentrate (also with Dicamba & MCPA).Monterey Spurge Power Concentrate (also with dicamba & MCPA).Other products similar to the three-way herbicides that also contain triclopyr are: Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns & RTS.Examples of products containing triclopyr for residential lawns in homeowner size containers are: Triclopyr can be used to control white clover in tall fescue lawns only.

Wait at least 3 weeks after treatment before seeding or over-seeding a lawn. A newly seeded lawn should be mowed a minimum of three times before applying an herbicide. Three-way herbicides should not be applied during spring transition (green-up of lawn) or when air temperatures exceed 90 ✯. Repeated applications of a three-way herbicide should be spaced according to label directions. If a second application is needed, apply the herbicide in spot treatments. Augustinegrass and centipedegrass to prevent damage to these lawns. Gordon’s Trimec Lawn Weed Killer ConcentrateĬAUTION: Herbicides containing 2,4-D should be applied at a reduced rate on St.Ortho WeedClear Weed Killer for Lawns Concentrate.Ortho Weed B Gon Weed Killer for Lawns Concentrate & RTS.Bonide Weed Beater Lawn Weed Killer Concentrate.Spectracide Weed Stop for Lawns Concentrate.Bayer BioAdvanced Southern Weed Killer for Lawns Concentrate & RTS.Southern Ag Lawn Weed Killer with Trimec ® Concentrate.Ferti-lome Weed-Out Lawn Weed Killer – Contains Trimec ® Concentrate.Examples of three-way herbicides for residential lawns in homeowner sizes are: The active ingredients of a three-way herbicide often include the following broadleaf weed killers: 2,4-D, dicamba, and mecoprop (MCPP). A three-way herbicide may be used safely on bermudagrass, zoysiagrass, centipedegrass, St. Large patches may be too difficult to dig up, and an herbicide may be used.Ĭhemical Control: If an herbicide treatment is chosen, it is best to start treatments early in the fall. If white clover does become a problem in a turf area, it can be dug up easily before it is well established. For more information on these topics, see the following fact sheets: HGIC 1201, Fertilizing Lawns HGIC 1205, Mowing Lawns HGIC 1207, Watering Lawns and HGIC 1652, Soil Testing. Test the soil for proper lime and fertilizer applications. Proper mowing height, weekly irrigation, and fertilization of the turfgrass are the best defense against weeds. Control in LawnsĬultural Control: Maintaining the health and density of home lawns is the best method for preventing weed problems. A more realistic approach is to manage (not eradicate) the weed by limiting the infestation to a tolerable level.

It grows best when temperatures range from 50 to 85 ☏.īefore starting a weed control program, homeowners should realize that completely eradicating a weed from the landscape is not practical. It has a shallow root system that does not do well in dry soils. Because of this, it can be used to indicate inadequate fertility. White clover is in the legume family (Fabaceae) and is capable of fixing its nitrogen, which enables it to thrive in unfertilized areas. White clover ( Trifolium repens) with characteristic white leaf markings.Ĭhris Evans, River to River CWMA, It is popular for livestock grazing, soil improvement, erosion control and was once used in lawn seed mixes. However, it is found throughout the continental United States. White clover is native to Europe and Asia. It reproduces by seed and by creeping stolons. The flower heads consist of 40 to 80 florets (individual flowers) in a cluster measuring ½ to 1 ½ inches in diameter. White flowers (often tinged with pink) appear in early summer. There is usually a characteristic white, crescent-shaped band on each leaflet. It has trifoliate leaves, which consist of 3 oval-shaped leaflets. It is a low-growing plant with creeping stems (stolons) that produce roots and shoots at nodes (joints) along the stem, which helps the plant to spread. White clover ( Trifolium repens), also known as Dutch clover, is a cool-season perennial that is often found growing in patches along roadsides, pastures, and lawns. White clover ( Trifolium repens) flower with pink color.

Clover lawn