Use Tenacity during the growing season when unwanted weeds are on the property. Tenacity (mesotrione) can be used as a pre-emergent. Assuming it kills creeping bentgrass in a few weeks, or maybe longer if more applications are needed, how long should I wait before reseeding? 42 of 44 people found this answer helpful. Tenacity can be used on grass seed blends that contain less than 20% by weight of hard or fine fescue. 79 of 88 people found this answer helpful. We would allow at least 2 week for nutsedge to yellow after herbicide applications. Generally, if you are treating with Tenacity Herbicide and using a tolerant seed, the applications can be done at the same time. Do not re-apply. Free Shipping. Tenacity is rainfast in 4 hours. ", See More * Free Shipping is available to the continental United States only. 38 of 44 people found this answer helpful. You would overseed with Bermuda when the turf is actively growing in spring or summer, if needed at all. If not, we would recommend waiting three months after the application of Tenacity Herbicide to re-seed your lawn. After spraying with Tenacity Herbicide, the foliage of treated weeds cease growth after application, then turn white (loss of chlorophyll), and death may take up to three weeks. According to the product label: Bentgrass, Poa annua, kikuyugrass, zoysiagrass, seashore paspalum and bermudagrass are sensitive to Tenacity applications. A great post emergent to ponder over is called. When used postemergence, sus-ceptible weeds absorb Tenacity through foliar contact and soil absorption. How long after you sprayed did it start raining? Tenacity Herbicide can be applied any time the weeds and grasses you are treating are still actively growing with temperatures consistently above 55 degrees. Tenacity will control many monocot and dicot weeds that compete with and slow the establishment of the turfgrass stands. Tenacity is a strong product so you dont want to over apply the product and risk harming/burning your lawn or whiten it too much. At 10 days after treatment (at 68 degrees), the new grass was about 5 inches tall--no injury the to the grass was visible. The majority of people recommending that you can overseed with a pre-emergent have had experience using Tenacity. Most other pre-emergents will also prevent the grass seed from germinating but this will not. Tenacity can turn grass tips white, which is a temporary symptom in established grass but will kill seedlings. Application at seeding can be made to fine fescue only if it is less than 20% of a seed mixture. Tenacity Herbicide would be a great option for you to control crabgrass without harming your Centipede lawn. Another thing about mowing before a Tenacity app. For post-emergent applications, it is best to apply Tenacity herbicide to young, actively growing weeds and may require a second application after 2 to 3 weeks. 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. 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. Apply at grass seeding or close to seeding for best performance. After that, you can use the Tenacity as a post emergent to hit any weed that did find a way to germinate. The Tenacity Seeding Rate is 4oz per Acre. If it is an established lawn, we recommend waiting to mow your lawn 2-3 days after application and 2 days prior to application. * Free Shipping is available to the continental United States only. Tenacity Herbicide can be used at the time of seeding or right after for most grass types. When to Use. 56 of 60 people found this answer helpful. If temps rise above 85 degrees after the product has dried it should not reduce effectiveness. You can contact the manufacturer, Syngenta, to inquire about availability 866-796-4368. Customized Pest Control Program - New Lower Price Starting at $7.98/month* + Free Shipping », DoMyOwn's COVID-19 Update: Shipping & Delivery Info | Check your order status or visit our DIY Center for expert advice, cargo-truck 68 of 76 people found this answer helpful. There should be no issues applying Tenacity around the same time as a feritlizer as long the label on the fertilizer does not state that it cannot be used with herbicides. 46 of 48 people found this answer helpful. I also believe it will be effective for 30 days. Tenacity is safe for use at or prior to seeding on Kentucky bluegrass, tall fescue, perennial ryegrass, and centipedegrass. A repeat application is required after two to three weeks for improved postemergence weed control. 94 of 98 people found this answer helpful. 108 of 124 people found this answer helpful. 58 of 63 people found this answer helpful. Eliminating crabgrass before planting new grass seed … Was this answer helpful to you? Foliage of treated weeds cease growth after application, then turn white (loss of chlorophyll) and death may take up to three weeks. Similarly, can I seed after using tenacity? Please let us know if we can be of any more assitance. There are no restrictions on fertilizing schedules. I believe it is the only or one of the only herbicides which can be applied while seeding to help battle weeds so the new grass has room to grow. Maintain a five foot buffer between treated areas and bentgrass or Poa annua greens. 102 of 113 people found this answer helpful. According to the Tenacity product label for New Lawn Establishment: Wait until the newly germinated turf has been mowed two times or four weeks after emergence (whichever is longer) before making a postemergence application. Avoid spraying these turf types unless control and/or injury can be tolerated. For fine fescue, it is recommended that you wait at least 30 days after application to re - seed. Tenacity application rates a post emergent herbicide: Use the syringe that comes with the bottle of Tenacity; Mix 1/2 teaspoon of Tenacity with 1 1/2 teaspoons of non-ionic surfactant (NIS) to 1 gallon of water to cover 1,000 sq ft. That makes it a bit harder to distinguish between the areas you want to hit and the areas that you would rather leave alone. Tenacity Herbicide can be applied anytime prior to seeding or post seeding of tall fescue. You could easily apply it every 3 or 4 monts and should be fine however per the product label regarding treating for bentgrass it states: Control of bentgrass (Agrostis spp.) We recommend waiting 2-4 weeks between applications of herbicides and fertilizers to avoid over stressing the treated areas. Make sure your grass seed mix is less than 20% fine fescue when using Tenacity. Tenacity pre-emergent applications must be done in the fall and early spring. Excludes Alaska, Hawaii, Puerto Rico, and all other U.S. territories. Testimonials, Protect your home from the most common perimeter pests, Customized program based on your location and home size, Take the guesswork out of preventing weeds and disease in your lawn, Customized to your location, grass type, and lawn size. A repeat application is required after two to three weeks for improved postemergence weed control. This is especially useful during seeding time. level 1 Dithiopyr (Dimension and others), in addition to preemergence control, can be used for postemergence control on crabgrass up to one tiller. 151 of 163 people found this answer helpful. 38 of 43 people found this answer helpful. Generally, if you are treating with Tenacity Herbicide and using a tolerant seed, the applications can be done at the same time. In fact, research conducted at Ohio State shows that Tenacity™ can be applied at seeding and results in no visible injury beyond 7 days after emergence nor any reduction in establishment rate. Foliage of treated weeds cease growth after application, then turn white (loss of chlorophyll) and death may take up to three weeks. According to the product label - Residential Lawn Applications: Unless renovating and/or re-seeding the home lawn, avoid broadcast applications of Tenacity for pre and post-emergence weed control because undesirable whitening of some turfgrasses may occur. Please let us know if you have any other questions. Yes, tenacity with seeding or overseeding. Spread evenly across lawn. No. If you are spot treating, mix 1/2 a teaspoon of Tenacity with 1 1/2 teaspoons of surfactant in one gallon of water. Answer: Tenacity Herbicide can be used at the time of seeding or right after for most grass types. Testimonials, Protect your home from the most common perimeter pests, Customized program based on your location and home size, Take the guesswork out of preventing weeds and disease in your lawn, Customized to your location, grass type, and lawn size. Fine fescue is the only grass seed that should not be used at the time of application. 49 of 56 people found this answer helpful. When using Tenacity Herbicide or other post-emergent herbicides, you should not mow at least 2 days before or 2 days after applying the product. It should be noted that this is recommended only for preventing cool seasons weeds when seeding in the fall. Was this answer helpful to you? Re: Results after using Tenacity at seeding Post by paulr » May 14th, 2012, 9:42 am Agree with last two, KBG is painfully slow, also did two apps of tenacity and elite KBG seed last year with great success, but yes, I was waiting and watering forever. © 2004-2020 P&M Solutions, LLC DBA DoMyOwn, Pre Emergent Herbicides (Weed Preventers), See More 44 of 47 people found this answer helpful. Are there any grasses on which you can't use Tenacity? Only when you are using it as a post-emergent. We apologize but there is not an exact time frame of how often you should apply the Tenacity Herbicide to keep the bentgrass out of your lawn. Answer: Tenacity Herbicide can be used at the time of seeding or right after for most grass types. Supply products, wellpriced and backed up by an excellent company purslane and! Bermudagrass are sensitive to Tenacity applications excellent company be made to fine fescue inches! 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