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Before starting a weed control program homeowners should realize that complete eradication of bahiagrass (or any weed) from the landscape is not practical. A more practical approach is to control (not eradicate) the weed by limiting the infestation to a tolerable level.

Metsulfuron can be used on bermudagrass, St. Augustinegrass, centipedegrass, and zoysiagrass. The Quali-Pro Fahrenheit also contains Dicamba for Broadleaf Weed Control. Blindside Herbicide also Contains Sulfentrazone for Nutsedge Control.

Control in Lawns

Cultural Control: Hand pulling bahiagrass may be a practical choice for small garden plots. If hand pulling is chosen, be sure to work when the soil is moist so roots of the bahiagrass can be removed easily from the soil.

It is best to attempt to treat weeds before tilling the soil for a vegetable garden. Tilling can break up and spread weed seed and perennial grass rhizomes throughout the garden plot. Some methods used to remove weeds in the vegetable garden include: hand pulling, mulch and post-emergent herbicides.

Sethoxydim: Sethoxydim is a selective herbicide that can be applied safely in landscape beds containing most landscape plants, but check the product label for a listing of tolerant plant materials. Sethoxydim will only control grass weeds; however, do not allow sethoxydim to contact ornamental grasses. A 2.5% solution should be applied before bahiagrass reaches 4 inches tall. Read label directions for mixing. Examples of products containing sethoxydim in homeowner sizes are:

Bahiagrass is most commonly grown as forage but it is sometimes used as erosion control on roadsides and disturbed soils. Bahiagrass has excellent drought tolerance and can be grown on a variety of soils. The grass seeds prolifically and spreads into turf areas.

A natural bahiagrass preventer is with cultural methods. Bahiagrass does not tolerate shade and high nitrogen soils. When the grass is found in garden beds, it may be hand-pulled but you need to be careful to get all the rhizomes.

Recognizing Bahia Grass

Organic mulch over six to eight layers of wet newspaper is also useful to smother the plants. Consistent lawn mowing prevents the formation of seed heads and the further spread of the plant. Annual fertilization and proper watering techniques will keep sod healthy and help eradicate bahiagrass.

A useful bahiagrass preventer would be the suspension of its use in open settings.

There are numerous chemicals that can kill bahiagrass. The perennial grass is controlled with pre-emergent or post-emergent herbicides. In a vegetable garden, it is best to use a pre-emergent chemical and wait to plant. Bahiagrass control in garden beds is achieved with spot spraying of a chemical like Glyphosate. Any product with Atrazine is effective in lawns as a pre-emergent treatment. You can kill bahiagrass with Imazaquin in any setting except where food items are grown. Follow up spraying may be required with any chemical.