Manuscript herbicide – a powerful option for bermudagrass and zoysiagrass turf
By Lane Tredway, technical services manager for Syngenta
Controlling grassy weeds is difficult, especially if preemergent herbicides weren’t applied or fail to provide acceptable control. Very few options are available for post-emergent control of grassy weeds in bermudagrass and zoyisagrass, especially in Florida or in landscape turf where MSMA cannot be used.
Manuscript® herbicide is a safe and effective option for control of tropical signalgrass, crabgrasses, and dallisgrass in bermudagrass and zoysiagrass turf. Its active ingredient pinoxaden works through the ACCase mode of action, which has a unique control spectrum thanks to its phenylpyrazoline chemistry. The Manuscript formulation includes a safener, enabling spot-treatment rates to increase weed control while maintaining turf safety. Manuscript is also packaged with Adigor™ surfactant, which was specifically designed to maximize Manuscript absorption and translocation in target weeds.
Broadcast rates of Manuscript are recommended to control perennial ryegrass and bull paspalum (aka thin paspalum). A single application at 9.6 fl. oz./acre is an effective option for removal of ryegrass overseedings, whereas the 19.2 fl. oz./acre rate is recommended for clumpy ryegrass. For bull paspalum control, make either one application at 19.2 fl. oz./acre or two applications at 9.6 fl. oz./acre on a 14- to 21-day interval.
Spot-treatment applications (9.6 fl. oz./10,000 ft.2) of Manuscript are recommended to control tropical signalgrass, crabgrasses, or dallisgrass. Two spot-treatment applications on a 14- to 21-day interval provide excellent control of these weeds with excellent safety to bermudagrass and zoysiagrass turf.
For best results, Manuscript should be applied in 40 gallons of water per acre with 0.5% v/v of Adigor. Target weeds should be actively growing – in other words, not under stress from drought or other factors – to maximize absorption and translocation of the active ingredient.
Watch the following video from GCSAA TV about the efficacy of Manuscript:
|Manuscript was mixed with MSO at 0.5% v/v and applied twice on a 14-day interval. Source: Granada Golf Course, Coral Gables, Florida, 2014.|
Care should be taken when tank-mixing Manuscript with other herbicides to ensure best performance. Phenoxy herbicides such as 2,4-D and MCPP are antagonistic to Manuscript and reduce its performance. Tank-mixing Manuscript with a sulfonylurea herbicide such as Monument® 75WG
herbicide is a better option. Manuscript + Monument may have slower activity against certain grasses, but in the long run provides excellent results against labeled weeds. In Florida, Manuscript can be tank-mixed with the Triple Threat combination
, Princep® Liquid
and Pennant Magnum®
herbicides for control of a broad-spectrum of grasses, broadleaves, and sedges.
For more information and trial data, visit GreenCastOnline.com/Manuscript
Performance assessments are based upon results or analysis of public information, field observations and/or internal Syngenta evaluations. Trial reflects treatment rates commonly recommended in the marketplace.
©2020 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™, GreenCast®, Manuscript®, Monument®, Pennant Magnum®, Princep®, Tenacity® and the Syngenta logo are trademarks of a Syngenta Group Company. All other trademarks are property of their respective owners.