Tenacity Herbicide is not labeled to prevent or eradicate lespedeza. Quali-Pro MSM Turf Herbicide may be a better option.
The best temperature range to apply most herbicides, including Tenacity, is between 65-85 degrees. For the best specific application times for your region, we recommend contacting your local extension office directly and speaking with the Master Gardener.
You can find a full list of weeds Tenacity Herbicide targets here: Tenacity Product Label. There should not be any issues using Tenacity Herbicide and Sedgehammer Herbicide at the same time as long as the turf is established and not under other significant stress. Tenacity Herbicide states the following in reference to tank mixing. We always recommend doing a small tank mix test before application.
"Tenacity has been tested in tank mixtures with Barricade 65WG Herbicide (prodiamine), Vanquish® (dicamba), Turflon® ester (riclopyr), Spotlight™ (fluroxypyr), Quicksilver™ (carfentrazone), Basagran® (bentazon), Princep® (simazine), and AAtrex® (atrazine) for safety and efficacy on turfgrasses. Tenacity must be applied at reduced rates (4 fl. oz./A or less) if tank mixed with atrazine, bentazon or simazine. Other tank mixture partners may be safe but have not been tested. Turf managers wanting to tank mix Tenacity with other herbicides should test on a small basis for compatibility, safety and efficacy before treating large areas. See product labels for directions and precautions"
Tenacity Herbicide cannot be applied to Bermuda unless fully dormant.
Tenacity Herbicide is safe for established Kentucky bluegrass and ryegrass applications.
According to the product label: Bentgrass, Poa annua, kikuyugrass, zoysiagrass, seashore paspalum and bermudagrass are sensitive to Tenacity applications. Avoid spraying these turf types unless control and/or injury can be tolerated. Maintain a five foot buffer between treated areas and bentgrass or Poa annua greens. While Tenacity is not labeled to kill zoysia it will most likely do so.
For best results, Tenacity should be applied along with a surfactant.
Tenacity Herbicide should not be applied near a water source including a lake or area of runoff to avoid contamination.
Yes, it is possible for Tenacity Herbicide to inhibit growth of new seedings if over applied.
Yes, Tenacity Herbicide can be applied. You would need to seed at the same time or wait until you seed in 3 weeks to apply.
When mixing concentrates such as Tenacity Herbicide, it is always a good idea to add some water to your tank, add your concentrates, agitate the mixture, and then fill the rest of the water and agitate again before spraying. This video has a great overview of how to use this product.
Tenacity Herbicide is not an acid. You can use either type of wand with it with no issue.
There should be no issues applying Tenacity around the same time as a fertilizer like the Coron, as long as both label instructions are followed.
Tenacity cannot be mixed and then frozen for future use as the freezing temperatures would make the product ineffective.
Tenacity Herbicide is only for use on St Augustine when used in sod farms and cannot be used on residential St. Augustine lawns.
Tenacity is not labeled to control cheeseweed. The herbicides we carry that are labeled to control cheeseweed are Spectracide Weed and Grass Killer With Extended Control RTU, Goal 2XL Herbicide, Ronstar 50 WSP, and Aim EC Herbicide.
Yes, Tenacity Herbicide can be shipped to Washington state.