If the new St Augustine lawn has started to become established or been mowed at least once you can carefully spot treat with the Celsius WG on the newly laid sod. Anytime herbicides are used its best to wait 4-6 weeks or until the grass has been mowed 1-2 times.
Celsius WG Herbicide is labeled to control lawn burweed (spurweed). Please be sure to carefully read the product label before applying the product.
We would recommend storing Celsius WG Herbicide in it’s original container if possible as we do not have any information on transferring the product and the effectiveness and shelf life in another container. For more information, Bayer can be reached directly at 1-800-331-2867.
Celsius WG Herbicide can be applied to established St. Augustine turfgrass as directed but it should NOT be applied to or near fruit trees. You should avoid applications within 15 ft of edible vegetation and outside the dripline of fruit trees.
The product label for Celsius WG Herbicide states that Bull Paspalum may need a second application of this product for control. If weeds are showing signs of recovery, make a second application 2-4 weeks after the first, Typically after yellow, this will result in control of weeds within 1-4 weeks after application. Do not exceed 7.4 oz (210 g) of product per acre per year (365 days)
Celsius is applied at three different rates depending on the weeds to be controlled. For the appropriate rate, consult the USE RATES FOR WEED CONTROL section on the Celsius product label.
Celsius WG Herbicide is not labeled for matchweed.
Celsius WG Herbicide would be mixed at the rate of 0.085 oz (2.4 g) of product per 1,000 sq ft in at least 1 gallon for red and tall fescue only per the product label.
Celsius WG Herbicide is not labeled for treating algae.
Most herbicides including Celsius WG are not as effective for weed control when the temperatures are below 55 degrees and the weeds are not actively growing.
Celsius WG Herbicide is not labeled for tumblegrass. Unfortunately, we are not aware of any products on our website labeled for this type of grassy weed. You may want to reach out to your local Cooperative Extension office for recommendations on controlling this plant in your landscape.
No, Celsius WG Herbicide is not labeled for eradication of Poa Annua.
Celsius WG Herbicide is applied at 0.113 oz per 1000 sq ft for Virginia Buttonweed on St. Augustine lawns.
For spot treatments, mix 0.057-0.113 oz (1.6-3.2 g) of Celsius WG Herbicide per gallon and apply until weeds are wet. One gallon of spray solution will treat up to 1000 sq ft. Per the product label, a second application of this product may be needed for control. If weeds are showing signs of recovery, make a second application 2-4 weeks after the first.
To decrease the effects of Celcius WG Herbicide injuring the lawn, you could have possibly used an activated charcoal product within hours of the application and watered the area a lot. At this point, it may be too late, and only time will tell. We would recommend watering the area very well and contacting the manufacturer (Bayer) directly at 800-331-2867 for more information.
Celsius Herbicide should not cause fungus in your lawn when used as directed on the product label. For more information, we would recommend contacting the manufacturer (Bayer) directly at 800-331-2867.
With an herbicide like Celsius WG and many others, if sodding is not stated specifically on the label we recommend waiting at least 3-4 weeks after an application of Celsius before putting down the new zoysia sod.
