Tenacity tank mixtures for crabgrass, dicots and more
By Dean Mosdell, Ph.D, technical services manager, Syngenta
Tenacity® herbicide is a systemic herbicide for pre- and post-emergence control of grass and broadleaf weeds in several cool- and warm-season turf species. The active ingredient, mesotrione, is based on a naturally occurring compound produced by the bottlebrush plant (Callistemon citrinus). Tenacity works by inhibiting the synthesis of carotenoids in susceptible plant species. Without carotenoids, light energy and by-products of photosynthesis destroy chlorophyll and cell membranes, resulting in bleaching of leaves and plant death.
Tenacity, now available in a convenient squeeze-and-pour bottle, provides control of major turf weeds including:
See what others in the industry have to say about Tenacity: watch these videos to learn more.
Product use rates range from 5-8 oz./A. A repeat application in two to three weeks may be necessary for control of weeds. Tenacity also controls bentgrass and nimblewill contaminations in Kentucky bluegrass and perennial ryegrass turf, and it is compatible with a seeding program into treated areas to enhance conversion.
Tenacity offers several unique features including:
Can provide clean up for summer annuals and perennial weeds such crabgrass, clover, dandelion and oxalis in late spring and early summer
Can be tank-mixed with a post-emergence herbicide, such as triclopyr (TE) or dicamba, can enhance post-emergence control of crabgrass and dicot weeds (see chart below)
Trial source: North Carolina, 2008
Trials reflect treatment rates commonly recommended in the marketplace.
Tenacity can also be used at seeding to reduce weed competition and establish a lawn faster. When applied just prior to or at seeding of tall fescue, Kentucky bluegrass and perennial ryegrass, Tenacity will control crabgrass, purslane and carpetgrass (among other weeds) that seem to germinate at turf renovation. Tenacity can also be added to the hydro-seeding tank for seeding large areas.
A new seeding of a Kentucky bluegrass and perennial ryegrass blend, 2007.
Order a free customizable Tenacity brochure for homeowners
Syngenta offers a free brochure you can give to homeowners explaining how Tenacity controls lawn weeds. You can also customize the brochure with your company’s contact information. To order, visit GrowWithSyngenta.com.
Check out the videos below for more insights into getting the most out of Tenacity:
For more information about Tenacity, contact your local Syngenta territory manager.
All photos are either the property of Syngenta or are used with permission.© 2022 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. Tenacity® and the Syngenta logo are trademarks of a Syngenta Group Company. All other trademarks are the property of their respective third-party owners.