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 cannot be mixed and then frozen for future use as the freezing temperatures would make the product ineffective.
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.
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 Herbicide can be used both in spring and fall for pre emergent control of weeds when soil temps are around 55 degrees. Tenacity is one of the top pre emergents for cool season turfgrasses in fall and can be applied at the same time as overseeding without inferferring with grass seed germiantion.
For post emergent control of actively growing weeds, a Non Ionic Surfactant is required to be added to tank mix. Post emergent applicaitons can be applied anytime the weeds are actively growing. Please refer to the list of Weeds Controlled on the product label for information on pre/post emergent control of targeted weeds.
The product label states that Tenacity acts as a pre and post emergent on bentgrass so it should help prevent it for at least a few months if applied at the right time. As a post emergent, you would apply it as you start to see new signs of bentgrass growth at two to three week intervals for up to three applications. Twice a year would not be enough for a post emergent control but can help to prevent it. Bentgrass control may be more effective in the late summer/early fall just prior to onset of renewed bentgrass growth, rather than spring/early summer applications.
No, you should not use Tenacity Herbicide on or around desirable ornamental plants or groundcovers, such as liriope. Please let us know what weeds you are targeting so that we can recommend an alternative product for you.
Tenacity Herbicide should be used just before the soil temperatures reach 55 degrees in early and late fall. Please contact your local cooperative extension office to determine the correct timing of the application as this will vary greatly from region to region.
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, the product label for Tenacity includes a chart that lists each of the weeds controlled by their common name and scientific name. It also lets you know if the weeds can be controlled in their pre-emergent or post-emergent stage.
If you are applying Tenacity Herbicide as a post-emergent, then you would apply when the target weeds are actively growing. Keep in mind that Tenacity is most effective in young crabgrass, so it may require more than one application to control mature crabgrass. If applying as a pre-emergent, then you usually apply just before fall overseeding and before soil temperatures drop below 70 degrees.
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.
