By Lane Tredway, Ph.D., technical services manager, Syngenta

During June and July, summer annual and perennial weeds grow larger and more objectionable, often requiring post-emergent herbicide applications during this time. Manuscript^®, Monument^® 75WG, and Recognition^® herbicides are powerful options for lawn care operators managing bermudagrass and zoysiagrass landscapes.

Manuscript controls tropical signalgrass, crabgrasses, dallisgrass and other labeled weeds in bermudagrass, zoysiagrass and centipedegrass. It has a unique turf safety profile and control spectrum thanks to its phenylpyrazolin chemistry, and it includes a safener, cloquintocet-mexyl, to further enhance turf safety. Manuscript is packaged with Adigor™ surfactant, which was specifically designed to maximize Manuscript absorption and translocation in target weeds.

For best results, Manuscript should be applied:

• With two spot treatment applications (9.6 fl. oz./10,000 ft.²) on a 14- to 21-day interval
• In 40-80 gal. water/A with 0.5% v/v of Adigor or an MSO surfactant

Target weeds should be actively growing, and not under stress from drought or other factors, to maximize absorption and translocation of the active ingredient.

Monument 75WG is the standard for post-emergent control of major sedge species, including purple nutsedge, yellow nutsedge and green kyllinga. It also controls more than 30 grass and broadleaf weeds including clovers, spurges, Virginia buttonweed and most cool-season grasses.

As an SU herbicide, Monument 75WG inhibits new root and shoot growth in sensitive weeds, resulting in plant death after 14-21 days. The active ingredient is effectively translocated to the growing point and other below-ground structures to help provide more effective control of tough perennial weeds compared to other SU herbicides.

With excellent turf safety to bermudagrass and zoysiagrass turf, Monument 75WG:

• Can be applied as a broadcast or spot treatment at rates of 0.35 to 0.53 oz./A
• Can be tank mixed with dicamba, fluroxypyr or other broadleaf weed herbicides to broaden weed control spectrum without reducing weed control

Recognition can be used in certain warm-season grasses, including bermudagrass and zoysiagrass lawns. It’s powered by the active ingredient trifloxysulfuron, a sulfonylurea herbicide that controls sedge and kyllinga species in addition to many broadleaf and grass weeds.

Recognition also contains a proprietary safener called metcamifen, which enhances the tolerance of labeled turf species and enables unique tank mixtures to control a broader spectrum of weeds. Most significantly, Recognition can be tank mixed with Fusilade^® II herbicide to selectively control unwanted bermudagrass out of zoysiagrass or St. Augustinegrass lawns. To control bermudagrass, apply Recognition at 1.29 oz./A with Fusilade II at 24 fl. oz./A and a non-ionic surfactant at 0.33 fl. oz./gal. of spray. Repeat applications on a 4- to 6-week interval when bermudagrass re-growth is observed. For more information see Problem solved: removing bermudagrass from zoysiagrass turf.

Yellow nutsedge and globe sedge control in Scotts ProVista St. Augustinegrass

 
For more information about warm-season weed control, download this lawn care brochure or contact your local Syngenta territory manager.

​​​​​​​Always consult the product label for complete use and application information.

Trials reflect treatment rates and mixing partners commonly recommended in the marketplace.

Performance assessments are based upon results or analysis of public information, field observations and/or internal Syngenta evaluations

© 2024 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. Adigor™, Fusilade^®, Manuscript^®, Monument^®, Recognition^® and the Syngenta logo are trademarks of a Syngenta Group Company. All other trademarks are property of their respective third-party owners.