If Tenacity Herbicide or any herbicide is exposed to extreme freezing or heat temperatures, the concentrate can and would lose efficacy. When stored in cool dry and temperature controlled environments, the shelf life is 3-5 years.
It would be best to wait to apply Tenacity Herbicide until the grass has completely dried before the application. Be sure to mix in a Non Ionic Surfactant when doing post emergent applications.
Tenacity Herbicide can be applied at the same time as seeding (unless grass is more than 20% stand of fine fescue). If application cannot be done within 7 days of seeding you would need to wait a minimum of 30 days, or until the seed has emerged and been mowed at least twice before applying to the lawn.
According to the Tenacity product label, you will need to mix 1 tsp of product + 3 tsp surfactant with 2 gallons of water for spot treatments applied at a rate of 1 gallon per 1,000 sq ft. It is advised to use a dye like Turf Mark Blue with it so you can make sure to not overlap if you plan to do a broadcast application on the property. Repeat applications can be done after two to three weeks for continued post emergent weed control.
Tenacity is not labeled for use around anything edible so we cannot recommend it be used in an orchard. We apologize but we do not currently have a product labeled for control of nimblewill in orchards. However, you can click here and contact your local cooperative extension office to speak with a Master Gardner to find the name of a product and then contact us to see if we have access to that product.
Yes, you can use Tenacity to kill nimblewill. Per the product label:
Apply Tenacity at 5 fl. oz. per acre in at least 30 gallons of water per acre at two to three week interval for up to three applications. Apply with a NIS surfactant.
Tenacity Herbicide can be used as both a spot treatment in your lawn or as a broadcast spray. It can be applied with any hand pump sprayer. Many of our customers like the Chapin Premier 1-Gallon Sprayer.
No, Tenacity Herbicide is not labeled for Horse's Tail (Equisetum arvense), so we would not recommend using this product for it.
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.