Tenacity Herbicide should be applied before soil temperatures reach 55 degrees if using as a pre-emergent. If using as a post-emergent you would apply when the target weeds are actively growing and healthy. You can check with your local cooperative extension office Master Gardener for specific timing in your area.
You do not want to scalp your lawn before applying herbicides. You should not mow within 2 days of an application of Tenacity Herbicide or any other herbicides. Keep in mind that you should not make a broadcast application of Tenacity on your lawn unless you are seeding or overseeding; otherwise, you may see whitening on your desirable turfgrass. Please let us know if you have other questions about this product or what may be most suitable for your application.
Yes, Tenacity Herbicide is safe for use on Kentucky 31 Tall Fescue as directed on the product label.
Tenacity should be applied outside of the dripline of the trees, and take special care not to allow any overspray or drift to contact the trees.
Tenacity Herbicide is one of the few products that can be applied at seeding, prior to seeding, or just after seeding of new grasses to help prevent and control weeds at the same time. Be sure to check the label for any restrictions to certain turf types as Fine Fescue is more sensitive than other species when using Tenacity at seeding. Be sure to use a Non Ionic Surfactant with the Tenacity when applying for best results.
Tenacity Herbicide can be used to prevent crabgrass and will not effect perennial ryegrass when used as directed on the label. Do not exceed 5 fl. oz. per acre per application to perennial ryegrass
Tenacity Herbicide can be safely applied to Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue, Perennial Ryegrass, Fine Fescue, St. Augustine Grass (grown for sod only).
Yes, Tenacity Herbicide would be safe to apply now.
Tenacity Herbicide is only labeled to be used on bermuda when it is dormant, otherwise it can be sensitive to applications and could harm it.
Tenacity Herbicide can be tank mixed with Atrizine. However, when it is, you will need to use Tenacity at the reduced rate of 4 ounces per acre or less.
Unfortunately there are no products available (that we carry or others carry) that will kill the Dallisgrass without killing the surrounding St. Augustine grass. The best option once it has emerged is to either spot spray or wipe on something like Round Up Quick Pro, or hand dig up the clumps of dallisgrass down to the root system and re-seed.
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.
