Ascernity® fungicide from Syngenta re-registered for use on turf in California

GREENSBORO, N.C., USA, August 1, 2023 ― Ascernity® fungicide from Syngenta is now available for golf course superintendents to use in California again. Ascernity combines SOLATENOL® technology ― an advanced SDHI for golf course turf ― and difenoconazole, the proven cooling DMI. Superintendents can begin to incorporate Ascernity into their rotation programs again to better prevent several key diseases in cool- and warm-season turf with no heat restrictions.  

By regaining access to Ascernity fungicide, superintendents will benefit from:  

  • Excellent control of diseases like anthracnose, large patch, summer patch, brown ring patch, gray leaf spot, microdochium patch, dollar spot and more, plus suppression of rapid blight under a 2(ee) label. 
  • Long-lasting control as the cornerstone of the GreenTrust® 365 Large Patch Guarantee Program. 
  • Improved turf safety with no heat restrictions ― even in the summer under high disease pressure. 
  • No unwanted plant growth regulation, phytotoxicity or thinning.  

“The re-registration of Ascernity offers California golf course superintendents a broad-spectrum fungicide that will protect against more than 20 diseases,” said Ron Townsend, technical service manager for Syngenta. “It is a powerful tool for disease control programs for cool- and warm-season turf. Specifically in California, it will be a great tool for large patch, brown patch, brown ring patch and dollar spot control.” 

For resistance management and season-long control, the Syngenta technical service team has developed prescriptive agronomic programs that strategically rotate Ascernity with other trusted products. To find recommendations for specific turf types and regions, visit

For more information about Ascernity, visit Join the conversation on Twitter using #Time4Ascernity.

About Syngenta  
Syngenta Crop Protection and Syngenta Seeds are part of Syngenta Group, one of the world’s leading agriculture companies. Our ambition is to help safely feed the world while taking care of the planet. We aim to improve the sustainability, quality and safety of agriculture with world- class science and innovative crop solutions. Our technologies enable millions of farmers around the world to make better use of limited agricultural resources. 

The content of this release is for information purposes only. This release is not, and should not be construed as, an offer to sell or issue or the solicitation of an offer to buy any securities or other property interests.  

To learn more, visit and Follow us on Twitter at and and on LinkedIn at

# # #

Media Contacts:
Mark LaFleur

Erin Bates

Web Resources:
Syngenta Newsroom

Cautionary Statement Regarding Forward-Looking Statements
This document may contain forward-looking statements, which can be identified by terminology such as ‘expect’, ‘would’, ‘will’, ‘potential’, ‘plans’, ‘prospects’, ‘estimated’, ‘aiming’, ‘on track’ and similar expressions. Such statements may be subject to risks and uncertainties that could cause the actual results to differ materially from these statements. For Syngenta, such risks and uncertainties include risks relating to legal proceedings, regulatory approvals, new product development, increasing competition, customer credit risk, general economic and market conditions, compliance and remediation, intellectual property rights, implementation of organizational changes, impairment of intangible assets, consumer perceptions of genetically modified crops and organisms or crop protection chemicals, climatic variations, fluctuations in exchange rates and/or commodity prices, single source supply arrangements, political uncertainty, natural disasters, and breaches of data security or other disruptions of information technology. Syngenta assumes no obligation to update forward-looking statements to reflect actual results, changed assumptions or other factors. 

© 2023 Syngenta, 410 S. Swing Rd., Greensboro, NC 27409. 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. Syngenta supports a FIFRA Section 2(ee) recommendation for Ascernity to suppress rapid blight on Poa annua greens. Please see the Section 2(ee) recommendation to confirm that the recommendation is applicable in your state. The section 2(ee) recommendation for Ascernity should be in the possession of the user at the time of application. Ascernity®, GreenCast®, GreenTrust®, SOLATENOL®, and the Syngenta logo are trademarks of a Syngenta Group Company. All other trademarks are the property of their respective third-party owners.  

Stay Ahead of the Game:

Greencast Advisory emails deliver technical insights, product updates and in-season offers straight to your inbox.

Want to receive articles like this in your inbox each month?

Sign-up now to get tips and new product information to stay ahead of the game with Syngenta.

* Indicates required field

Email Subscriptions