Ascernity re-registered for use in California

Syngenta fungicide controls multiple key diseases on cool- and warm-season turf with no heat restrictions.


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, a 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.”