Tenacity Herbicide should only be applied to established listed lawns as directed on the product label. You should avoid vegetables, flowers, groundcovers (junipers), trees etc
Bonide Grass Beater Over-The-Top Grass Killer Concentrate is an alternative option that's labeled safe around a variety of junipers and labeled to help control/suppress grassy weeds like crabgrass and bermuda etc.
When applying Tenacity Herbicide, water acts as the carrier to distribute the active ingredient evenly and thoroughly over the lawn. get the herbicide into the soil. Be sure you are using enough water volume to cover each 1000 sq ft area. This can be applied the day or close to seeding as possible. If rainfall has not occured within 10 days of the intitial application, it is recommended to water the lawn with 0.15 inches of irrigation.
Please view the full product label for more information.
Tenacity Herbicide can certainly damage your turf if overapplied. Although we cannot predict the outcome of your lawn application, we are hopeful that the damage sustained will be minimal.
For further details on the affects of overtreating on your lawn, please contact Syngenta at 866-796-4368.
Regarding tank mixtures of various herbicides, including Tenacity Herbicide and SedgeHammer Herbicide, all product labels should be referred to for mixing restrictions, while always adhering to the most restrictive label. If tank mixtures are not prohibited, it is then advisable to make a small jar test for compatibility purposes, before mixing a full tank.
We have not heard of the dye indicator not being visible when mixed per the product label instructions. Please contact us directly at 866-581-7378 to further discuss depending on the dye indicator used and the dye indicator ratio to water volume used.
Since water is acting as the carrier to get the Tenacity Herbicide into the soil, you cannot use "too much" water when applying. Typiclally, one gallon of water should be used to thoroughly cover a 1,000 sq ft area so if treating a 1/4 acre you will use 11 gallons of water total. If making 2 passes to distribute the 1.5 ounces, you can use at least 5-6 gallons of water each pass.
There should be no issues applying Tenacity around the same time as a feritlizer or reseeding. When reseeding the Tenacity product label suggests apply seed at the time of application or as close to it as you can.
Check the product label for the fertilizer you are using to make sure it doesn't state that it cannot be used with herbicides.
Sensitive means that certain turfgrasses or conditions can result in injury when applying even selective herbcides such as Tenacity Herbicide. It will not kill the weed, grass or plant completely but you may see some browning, wilting or discoloration for a short period of time before it recovers.
You will need to wait until the new grass has germinated and is well-established before applying Tenacity or other post-emergent herbicides. Turfgrass is generally considered established after the second mowing.
Yes, it will sometimes take 3 applications of Tenacity Herbicide to fully start eradicating the nimblewill. Make sure you are using 1 tsp of Tenacity with 2 tsp of surfactant to 1 gallon of water as this is needed for best results.
Please view the product label for more information.
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. Since Tenacity Herbicide can be used only on fully dormant Bermudagrass, there is not a time when you would be overseeding and using Tenacity at the same time. You would overseed with Bermuda when the turf is actively growing in spring or summer, if needed at all. So if you applied Tenacity on dormant Bermuda, then it would be long gone by the time the turf is completely green and any seeding would be done. If you would like to tell us more about the weeds you are targeting, then we can recommend alternate products for your needs.
Tenacity Herbicide should be applied on a non-windy day as directed on the label.
To control nimblewill, start applying Tenacity in the spring (late-April) with a nonionic surfactant. You will need to make two or three applications 2-3 weeks apart. You will use it at the 5 oz per acre rate per the label. The product does have a yearly maximum use rate, and the label states "do not apply more than 16 oz of Tenacity per acre per year or per crop (equivalent to a maximum of 0.50 lb of mesotrione per acre per year).You can also apply Tenacity in late summer and fall, but you should initiate them by August for best results. Good cultural practices on your lawn can help reduce its ability of coming back as well.
It would be best to wait to apply Tenacity Herbicide until the grass has completely dried before the application. Be sure to mix in a Non Ionic Surfactant when doing post emergent applications.
Tenacity Herbicide can be applied at the same time as seeding (unless grass is more than 20% stand of fine fescue). If application cannot be done within 7 days of seeding you would need to wait a minimum of 30 days, or until the seed has emerged and been mowed at least twice before applying to the lawn.
According to the Tenacity product label, you will need to mix 1 tsp of product + 3 tsp surfactant with 2 gallons of water for spot treatments applied at a rate of 1 gallon per 1,000 sq ft. It is advised to use a dye like Turf Mark Blue with it so you can make sure to not overlap if you plan to do a broadcast application on the property. Repeat applications can be done after two to three weeks for continued post emergent weed control.
Ideally, you would not want to put a fertilizer down when the lawn is getting ready to go dormant. If anything, an application could be made now in early October as your last treatment for the year. Tenacity would not be effective on lespedeza (japanese clover) at all as its not labeled for it. Southern Ag Atrazine is labeled for lespedeza and is safe for use on Centipede lawns if used as directed. Another option is Fertilome Weed Free Zone.
Tenacity Herbicide is not labeled for clump fescue, and it is safe for tall fescue.
You would want to wait 24 hours after the application of 1 product before applying the second product.
Tenacity is not labeled to be used on bahiagrass. The most effective product to control Nimblewill pre-emergently has been removed from the market (MSMA). We have had a lot of folks report that Dimension does a pretty good job pre-emergently but since the product is not technically labeled for Nimblewill we cannot legally recommend it for this use. The usual recommendation since the ban of MSMA is to use a non-selective product such as Round Up on the weed, wait 14 days and re-seed or sod the area.
