It may be fine to mix both Tenacity and Gordon's Trimec together but has not been tested by the manufacturer. We recommend that you perform a jar test to an inconspicuous area first prior to a full application to confirm if you wish to use them both together.
The product label for Tenacity Herbicide recommends that you avoid applications over the top of any exposed roots of trees and ornamentals. We would recommend keeping Tenacity outside the dripline of desirable trees for safety.
Tenacity Herbicide has been tested on both ine fescue (creeping red, chewings and hard) and tall fescue and found to be safe under trial conditions.
There is no wait time after applying Tenacity Herbicide to re-seed unless you are re-seeding with fine fescue. For fine fescue, it is recommended that you wait at least 30 days after application to re-seed.
Tenacity Herbicide will damage poa annua turfgrass. Be sure to check your grass type to ensure that the product can be used on your lawn safely.
Tenacity Herbicide is only labeled to suppress Poa Annua as pre-emergent. Tenacity Herbicide DOES NOT have any post emergent control when the poa is actively growing.
You should cover plants that you do not wish drift of a Tenacity Herbicide application to contact. It should only be applied to established listed lawns as directed. You should avoid vegetables, flowers, groundcovers (junipers), trees etc. Apply on a non-windy day.
Tenacity Herbicide does not list Poa Supina as a tolerable species on the product label so we cannot recommend using it for this purpose.
Yes, Tenacity Herbicide can be applied as a broadcast application.
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.
When you apply Tenacity Herbicide will depend on how you are using it. When using Tenacity as a post-emergent herbicide, you should spot treat target weeds when they are young and actively growing, which may be in spring, summer, or fall. Generally, you do not want to use any post-emergent herbicides when temperatures are over about 85 - 90 degrees since your desirable grass will be more sensitive and the target weeds will not be growing when it’s that hot. Tenacity should be used as a broadcast application pre-emergent when renovating lawns listed as tolerant on the product label. Since these are primarily cool-season lawns, this application is generally done in the fall.
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.
