The amount of Tenacity Herbicide that is used is based on the amount of area you are treating. With herbicides, the amount of water is not as important as the amount of water that is being used. The rate we would recommend using is 5 fl oz to cover an acre. This can be mixed in 25-30 gallons of water to cover an acre.
We are not aware of anything that can be added to Tenacity Herbicide to cause the plant color to change as it dies and it already causes a color change itself. Per the product label: Foliage of treated weeds cease growth after application, then turn white (loss of chlorophyll) and death may take up to three weeks. A repeat application is required after two to three weeks for improved postemergence weed control. A non-ionic surfactant should be added in postemergence applications
Per the label of Tenacity Herbicide, this product can be applied at the same time of seed, except fine fescue. It is recommended that you mow at least two days before and/or two days after.
There are no restrictions on the label for Tenacity Herbicide regarding timing around application of beneficial nematodes. Unfortuunately, not too much is known about the possible effects of using herbicides when applying beneficial insects. We would not recommend mixing or applying Tenacity immediately after appying the nematodes. We recommend contacting the manufacturer of the nematodes you are using for their recommendation on how long to wait between these applications and which is best done first.
There are no time restrictions when applying Tenacity Herbicide along with insecticides or fertilizers. You can either spot treat or broadcast depending on how much of the target weed you are dealing with.
Tenacity Herbicide is labeled to control bentgrass but it does need to be applied when it is actively growing and healthy. 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. Bentgrass control may be more effective in the late summer/early fall just prior to onset of renewed bentgrass growth, than spring/early summer applications
Tenacity Herbicide can be used for both nimblewill and wild violet. To control nimblewill, you should start applying Tenacity Herbicide in the spring (late-April). You may need to make two or three applications to get complete control. You can also apply Tenacity in late summer and fall, but you should initiate treatments by August for best results. For other weeds such as wild violet apply to young, actively growing weeds.
For best results, do not apply Tenacity Herbicide when rainfall is forecasted to occur within 48 hours.
Tenacity Herbicide should only be used on St. Augustine grass that is grown on sod farms. It cannot be used on St. Augustine in residential lawns.
Yes, Tenacity Herbicide can be tank mixed with Temprid FX, following the label instructions for each product. We would suggest doing a compatibility test in a small jar before mixing in a large tank.
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. Be sure that your mix does not contain seed that will not be tolerable.
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 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.
When you apply Tenacity Herbicide will depend on how you are using it. When using Tenacity as a post-emergent herbicide, you should spot treat target weeds when they are young and actively growing, which may be in spring, summer, or fall. Generally, you do not want to use any post-emergent herbicides when temperatures are over about 85 - 90 degrees since your desirable grass will be more sensitive and the target weeds will not be growing when it’s that hot. Tenacity should be used as a broadcast application pre-emergent when renovating lawns listed as tolerant on the product label. Since these are primarily cool-season lawns, this application is generally done in the fall.
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.
