The Tenacity product label suggests the product be applied with any non-ionic surfactant.
No, the bleached seeds that were treated with Tenacity are no longer viable. It may require more than one application for this.
According to the Tenacity product label for smaller applications, you will need to mix 1 tsp of Tenacity and 3 tsp of surfactant to 2 gallon of water, using 1 gallon each to cover 1,000 sq ft. For 5 gallons of water you will need to mix 2 1/2 tsp of Tenacity and 7 tsp of surfactant, using 1 gallon each to conver 1,000 sq ft.
It is safe to apply Tenacity Herbicide at or near seeding for most types of turfgrass for pre-emergent control. You should avoid spraying Tenacity on newly germinated turfgrass plants. Please refer to the product label for complete application instructions. You would only need to use a surfactant when applying Tenacity for post-emergent weed control.
You can mow 2 days prior to application and 2 days following application of Tenacity Herbicide.
Yes, Tenacity Herbicide is both a pre and post emergent. So it can be sprayed now to kill the current crabgrass that you have as long as it is still actively growing. Please be sure to use the product label for the correct usage rates for your application.
No, when using Tenacity Herbicide as a pre-emergent a surfactant is not needed. Only when you are using it as a post-emergent.
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. If you can acurrately measure a smaller amount it could be halved to do 500 sq ft but anything smaller would not be recommended.
We recommend waiting 2-4 weeks between applications of herbicides and fertilizers to avoid over stressing the treated areas.
Tenacity Herbicide is labeled to treat for Windmill grass.
SInce you can use Tenacity Herbicide either prior to or during seeding of certain turfgrasses you could either aerate before or after using the product and it would still work. There is nothing on the product label stating that there is a certain time to do aerating.
Tenacity Herbicide is a great option for post emergent control of nimblewill. However it is not safe for use in Zoysiagrass and is only for use on St Augustine when used in sod farm. You could use the Tenacity as a spot treatment only for nimblewill as we would not recommend using it as a broadcast spray on your lawn.
Tenacity Herbicide is not labeled for bahiagrass. However, you could use a product like ProSedge Herbicide. It is labeled for bahiagrass and is safe for use on various types of lawns, including St. Augustine, as long as it is not Floratam.
When using Tenacity Herbicide there should be no issue with planting annual rye seed after using it. Per the product label you would want to apply either at seeding or close to it for the best performance.
Tenacity Herbicide can be applied any time the weeds and grasses you are treating are still actively growing with temperatures consistently above 55 degrees. Please let us know if we can be of any more assitance.
Per the product label on Tenacity Herbicide, apply at grass seeding or close to seeding for best preformance. If you are not close, meaning within a week of application, then you would need to wait 6-8 weeks to re-seed, As for your questions is it too late ot re-seed, we recommend you contact a master gardener in your area or your Local Extention Office to get more information on that.
If you have already seeded, then you do not want to apply Tenacity Herbicide to the newly seeded turf until is has been mowed two times or four weeks after emergence (whichever is longer) before making a postemergence application.
Since Tenacity is an effective herbicide for weed control prior to or during seeding of certain turfgrasses during turf renovation and the water is only acting as the carrier for the solution to get into the weeds, you should be ok to reseed if you are happy with the results. For post emergent applications, you will need to wait for the turf to be established after 2 mowings to reapply.
There is no specific time that you need to wait after using an herbicide like Tenacity before you can apply a fertilizer. As long as the turf is healthy and you are following the directions on the product labels for what you are applying, then you should not come across any problems. Please see our Lawn Care Schedule for additional tips.
Tenacity Herbicide would be a great product to use to treat for nimbleweed and can safely be used in fescue and other cool season grasses.