Tenacity is a systemic preemergence and postemergence herbicide for the selective contact and residual control of weeds in turfgrasses.
When applied preemergence, weeds absorb Tenacity during emergence from the soil. Dry conditions following application may reduce the preemergence activity. If rainfall (0.15 inches) has not occurred within 10 days after a preemergence application, activate with 0.15 inches of irrigation.
When used postemergence, susceptible weeds absorb Tenacity through foliar contact and soil absorption. 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.
|Target Pests:||Control of certain Grassy and broadleaf weeds. Please refer to the product label for a complete list of target weed plants.|
|For Use In:||Use in turfgrass species listed on this label in commercial and residential sites (Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue, Perennial Ryegrass, Fine Fescue, St. Augustine Grass). Use sites include non-crop areas: golf courses, sod farms, athletic fields, parks, residential and commercial properties, cemeteries, airports, and lawns. Do not use on golf course putting greens and maintain a five foot buffer between treated areas and putting greens.|
|Yield:||5 to 8 oz. per Acre. It will depend on the targets and treatment options. Please refer to the product label for full dilution rates.|
|Active Ingredient:||Mesotrione - 40.0%|
Tenacity may cause temporary whitening of turfgrass foliage. In general, symptoms appear five to seven days after application and last for several weeks. A repeat application to the same site causes less whitening of the plant tissue.
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.
Please refer to and follow the instructions on the Product label.
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