You should wait until the newly germinated turf has been mowed two times, or four weeks after emergence (whichever is longer) before making a postemergence application with Tenacity if it was not applied at the time of seeding.
Tenacity Herbicide is labeled to eradicate some broadleaf weeds. Please refer to the product label for a list of all weeds controlled.
Before applying Tenacity you must wait until the newly germinated turf has been mowed two times or four weeks after emergence (whichever is longer) before making a postemergence application.
Tenacity Herbicide is only for use on St Augustine when used in sod farm and cannot be used on home lawns that have St Augustine.
The product label for Tenacity does state that roses and daylillies are sensitive to it and to avoid over-spray or drift.
Tenacity Herbicide would be mixed at the same rates listed on the label on your turfgrass for using solo when tank mixing with Barricade. You would only used reduced rates if mixing with atrazine, bentazon or simazine.
We would not suggest mixing Tenacity and a glyphosate product as there would not be much benefit in doing so. You could mix a pre-emergent like Dimension 2EW or Prodiamine 65 which would cover many broadleaf and grassy weeds.
When Tenacity Herbicide is used for post-emergent control of weeds the weeds are sprayed directly. According to the product label, when used postemergence, susceptible weeds absorb Tenacity through foliar contact and soil absorption. The foliage of treated weeds cease growth after application, then turn white (loss of chlorophyll) and death may take up to three weeks. A repeat application is required after two to three weeks for improved postemergence weed control.
Tenacity Herbicide should not be used if the seed you are putting down is more than 20% fine fescue. If you have a fescue blend that is less than 20% fine fescue, then it should be safe to use Tenacity before or at the same time as seeding. Please refer to the product label for full application instructions.
Yes, you can apply Tenacity Herbicide before or at the same time as seeding if you are using turf types listed as tolerant on the product label. This herbicide will suppress poa annua as a pre-emergent.
Tenacity Herbicide is not labeled for zoysiagrass.
No, Tenacity Herbicide cannot be used on residential St Augustine lawns. It is only for use on St Augustine grown for sod as listed on the product label.
Some folks do use food coloring/dye to mark where Tenacity Herbicide has been applied. How much you use depends on the depth of color you want. We apologize but cannot advise on the exact amount.
No, Tenacity Herbicide is not labeled for application to bahia.
Tenacity Herbicide does not list English ivy on the product label, but it is labeled to kill ground ivy so we would not recommend applying it to any desirable ivy.
Products that have been mixed with water must be used within 24 hours after mixing. Please contact your Local Sanitation Dept for guidelines in your area on disposal of unused Tenacity Herbicide .
Spray foliage of target weeds with Tenacity Herbicide until wet but not until the point of runoff.
Tenacity Herbicide is not labeled for use on a dichondra lawn, and it is not labeled for spurge. Dichondra lawns are considered a type of ground cover, and many herbicides may prevent this type of lawn from growing. Please contact your local cooperative extension office Master Gardener for assistance on products that will take care of the weeds in your lawn without causing harm. Please let us know if they suggest a product, and we will certainly make an effort to locate it for you.
Tenacity is not labeled to control undesirable ornamental plants, although it may harm them if sprayed accidentally. You will need to remove physically all the parts of the iris - including the rhizomes in the soil – in order to prevent these plants from regrowing the following year. You can use a glyphosate product such as RoundUp QuikPro to kill the above ground plants, but you will need to remove the rhizomes after spraying. This article has easy-to-follow directions on this treatment, which is best done in the fall.
Due to the strength of Tenacity, and the need to not over apply or overlap with it during application to avoid discoloring or excess stress to the desirable turf grass, we do not recommend mixing other post emergent herbicides in the same tank with it unless stated on the label. Tenacity should be applied with a Non Ionic Surfactant and a temporary marking dye like Turf Mark Blue to ensure no overlapping occurs to cause your turf to whiten. We would recommend applying the Triad Select in a separate application. Should you decide to try tank mix the two, we recommend doing a tank mix test first for compatibility, and test a small area to ensure safety to the lawn. Though be aware Tenacity is not labeled to effect bermuda at all.
