Dollarweed thrives in weak, thin turf with excessive moisture. The first defense against dollarweed is to reduce moisture levels and modify cultural methods (i.e., proper mowing height and irrigation). After taking steps to modify the lawn care techniques, a chemical control may still be necessary to further reduce the dollarweed population. Herbicides should be chosen according to turf species and applied in late spring (after full spring green-up of the lawn) when weeds are small. Herbicide effectiveness is reduced as weeds mature.
Atrazine can be applied to St. Augustinegrass and centipedegrass up to two times a year. For maximum effect atrazine should be applied once in the fall and again in late spring (after spring green-up). Atrazine has a pre- and post-emergent effect on weeds, which means it helps to control both emerged weeds and weed seed. It should NOT be applied to newly seeded lawns due to the detrimental effect it has on seed germination. Delay atrazine applications to newly sodded and sprigged lawns until it is well-established and actively growing. Examples of products containing atrazine in homeowner sizes are:
Hi-Yield Atrazine Weed Killer
Southern Ag Atrazine St Augustine Weed Killer
A three-way herbicide may be used safely on bermudagrass, zoysiagrass, centipedegrass, St. Augustinegrass and tall fescue. The active ingredients of a three-way herbicide include the following broadleaf weed killers: 2,4- D, dicamba, and mecoprop (MCPP). Examples of three-way herbicides in homeowner sizes are:
CAUTION: Herbicides containing 2,4-D should be applied at a reduced rate on St. Augustine grass and centipede grass to prevent damage to these lawns. The product label will give the rate to use for each type of turf grass. If a second application is needed, apply the herbicide in spot treatments. Repeated applications of a three-way herbicide should be spaced according to label directions. Three-way herbicides should not be applied during spring transition (green-up of lawn) or when air temperatures exceed 90F. A newly seeded lawn should be mowed a minimum of three times before applying an herbicide.
Imazaquin (such as in Image Herbicide Consumer Concentrate –Kills Nutsedge) can be applied safely to bermudagrass, St. Augustinegrass, centipedegrass and zoysiagrass, but do not apply to tall fescue. Apply imazaquin in the spring (after spring green-up) when weeds are small. A second application can be made in six weeks after the initial application. Do not apply to newly planted, plugged or sodded turfgrass.
Thank you for this information. You gave me everything I needed to know. I will be putting in new sod in some areas as well, so I appreciate you including information on that as well. Have a great day.
BE VERY CAREFUL NOT TO HIT YOUR FAV PLANTS...IT WILL INJURE OR KILL THEM TOO..THIS KILLER IS GOOD FOR ALONG BORDERS OR SIDEWALK CRACKS ETC. IF YOU NEED IT ,A STRONGER ACEDIC LEVEL VINEGAR IS AVAILABLE AT GARDEN CENTERS.
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Try to reduce moisture levels in area of weed by moving hoses or sprinklers. Alternatively, you can use white vingear to kill it.
Dollarweed thrives in weak, thin turf with excessive moisture. The first defense against dollarweed is to reduce moisture levels and modify cultural methods (i.e., proper mowing height and irrigation). After taking steps to modify the lawn care techniques, a chemical control may still be necessary to further reduce the dollarweed population. Herbicides should be chosen according to turf species and applied in late spring (after full spring green-up of the lawn) when weeds are small. Herbicide effectiveness is reduced as weeds mature.
Atrazine can be applied to St. Augustinegrass and centipedegrass up to two times a year. For maximum effect atrazine should be applied once in the fall and again in late spring (after spring green-up). Atrazine has a pre- and post-emergent effect on weeds, which means it helps to control both emerged weeds and weed seed. It should NOT be applied to newly seeded lawns due to the detrimental effect it has on seed germination. Delay atrazine applications to newly sodded and sprigged lawns until it is well-established and actively growing. Examples of products containing atrazine in homeowner sizes are:
A three-way herbicide may be used safely on bermudagrass, zoysiagrass, centipedegrass, St. Augustinegrass and tall fescue. The active ingredients of a three-way herbicide include the following broadleaf weed killers: 2,4- D, dicamba, and mecoprop (MCPP). Examples of three-way herbicides in homeowner sizes are:
CAUTION: Herbicides containing 2,4-D should be applied at a reduced rate on St. Augustine grass and centipede grass to prevent damage to these lawns. The product label will give the rate to use for each type of turf grass. If a second application is needed, apply the herbicide in spot treatments. Repeated applications of a three-way herbicide should be spaced according to label directions. Three-way herbicides should not be applied during spring transition (green-up of lawn) or when air temperatures exceed 90F. A newly seeded lawn should be mowed a minimum of three times before applying an herbicide.
Imazaquin (such as in Image Herbicide Consumer Concentrate –Kills Nutsedge) can be applied safely to bermudagrass, St. Augustinegrass, centipedegrass and zoysiagrass, but do not apply to tall fescue. Apply imazaquin in the spring (after spring green-up) when weeds are small. A second application can be made in six weeks after the initial application. Do not apply to newly planted, plugged or sodded turfgrass.
Change it for pennies! LMAO
1 gal white vinegar,1/2 to 1 cup salt and 3 tbsps. dawn. the dawn will wet the weed and the vinegar will kill it.
BE VERY CAREFUL NOT TO HIT YOUR FAV PLANTS...IT WILL INJURE OR KILL THEM TOO..THIS KILLER IS GOOD FOR ALONG BORDERS OR SIDEWALK CRACKS ETC. IF YOU NEED IT ,A STRONGER ACEDIC LEVEL VINEGAR IS AVAILABLE AT GARDEN CENTERS.