Certainty Herbicide - 1.25 oz. is not labeled to control goosegrass.
Unfortunately, there has not been any testing done by the manufacturer of Tenacity on the compatibility of tank mixing Tenacity Herbicide and Certainty Herbicide. We would suggest doing a small compatibility test in glass jar to see if the products separate or clump in any way. The Certainty Herbicide product label advises to add water to the tank ½ way then add the Certainty first and then the Tenacity, shake vigorously and fill the remaining way with water and shake again.
You should mix Certainty with a surfactant to increase its effectiveness.
It would be best to call your local county extension office for when to apply any type of herbicides or insecticides in your area. They would know better than we would since we are not the manufacturer and we live in Georgia. They will know exactly when you should apply it in your specific county.
You can find your local county extension office information here: http://npic.orst.edu/pest/countyext.htm
Certainty Herbicide is labeled for application on warm season turf including established Centipede grass. It could harm/injure established or actively growing Fescue but is not specifically designed for the suppression/control.
Certainty Herbicide is a post-emergent herbicide so this means it only kills weeds that are already emerged from the soil. You can spray Certainty Herbicide on a yard or target weed whenever the weed is actively growing. Refer to the product label for mix rates and cover areas.
Certainty Herbicide is not labeled to be applied over daylilies so we would not recommend it. Care should be taken during application to avoid drift or spray contacting them to avoid injury.
Certainty Herbicide and Dismiss Herbicide can safely be applied to established Bermuda lawns if used as directed. Certainty is labeled for controlling/suppressing dallisgrass and Virginia Buttonweed but Dismiss is not.
Certainty is going ot be the best product to use for poa annua in St Augustine or Bermuda. Weed Beater Complete is another option but each turf requires different rates.
Certainty Herbicide - 1.25 oz is labeled for the following warm season grass types: Bermuda (common or hybrid), Bahiagrass, Buffalograss, Centipedegrass, Kikuyugrass, St. Augustinegrass, Seashore Paspalum and Zoysiagrass only. We apologize but we are not familiar with Mind I grass.
The mixing ratio of Certainty Herbicide is 3 - 5 small scoops or 1 - 2 large scoops per gallon of water per 1,000 sq ft.
Daylillies are labeled as tolerant to Certainty Herbicide application. That being said, it would be best to directly spot treat the nutsedge and take care to avoid spraying the daylilies or allowing drift to contact them.
Certainty Herbicide - 1.25 oz. is not labeled to control Goosegrass. If you let us know what kind of lawn you have, we can find a product that would better suit your needs.
Certainty Herbicide is a post-emergent herbicide only. You should use a different product for your crabgrass pre-emergent, such as Dimension 2EW or Hi-Yield Weed and Grass Stopper.
Certainty Herbicide can be used on established warm season grasses to control actively growing weeds. Ideally you would want to use it while the grass is still dormant, or after it has greened up completely to avoid any extra stress on the lawn. Grasses that go dormant in winter are most sensitive during their transition periods so this is why its recommended to avoid spraying during this time. If you find you need to treat during the transition, be aware some temporary discoloration or stunting could occur.
Yes, the Certainty Herbicide contains Sulfosulfuron which is a Group 2 Herbicide.
Certainty Herbicide is a great option for nutsedge in a zoysia lawn.
Certainty Herbicide can be used to measure with another larger utensil (dedicated for this use or disposable) if desired.
The application rate is 3 - 5 small scoops or 1 - 2 large scoops per gallon of water per 1,000 sq. ft. Depending on if you need to measure out the equivalent of small or large scoop for your application, the small scoop is equal to 0.16 grams and the large scoop is equal to 0.8 grams.
View the full product label for more information.
