Yes, Tenacity Herbicide can be applied prior to, at, or just after seeding as directed on the product label.
If the use rate of Tenacity Herbicide is of 5 oz per acre, you'll need to use 0.11 oz or 6/10 of a teaspoon per 1,000 square feet.
Tenacity is not labeled for use on pasture land. Pasture Pro 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.
Yes, Tenacity Herbicide can be shipped to Washington state.
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"
It would be best if clippings were bagged after the first mow and application of Tenacity Herbicide. Bagging will help with lawn health.
Tenacity Herbicide can be used at the time of seeding for most grass types. Fine fescue is the only grass seed that should not be used at the time of application. It is recommended that you wait 2-4 weeks after an application of Tenacity Herbicide to reseed with fine fescue.
Tenacity Herbicide is not labeled for use in or around any edibles or vegetable gardens. Please visit our Herbicides for Edible Gardens Page for products that are safe to use around edibles.
Tenacity Herbicide is labeled to treat for actively growing ivy.
Tenacity is not labeled for quackgrass. The common recommendation is to kill the quackgrass with a glyphosate product like Roundup QuikPRO and then reseed with the desirable turf.
Tenacity Herbicide is not labelled to control or suppress bindweed (creeping jenny). Quinkill Max (Drive) can be used for bindweed on most types of turf (not St Augustine).
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 labeled to prevent or eradicate lespedeza. Quali-Pro MSM Turf Herbicide may be a better option.
As long as the initial application of Tenacity Herbicide has had a chance to dry after a post emergent application it will not be washed away with rain after. Best to apply when no rain is expected within 24 hours to be sure.
Tenacity is labeled for use on St Augustine grown for sod only and would not be recommended on a home lawn. Could you tell us what you are trying to treat for and we can try to recommend a product that you can use?