
The first snowfall is on its way. For some golf course superintendents (GCS), it is the last – and best – chance to avoid perennial weeds lying in wait on your course, ready to wreak havoc come spring.
Fortunately, one application of Defendor® specialty herbicide in the fall can prevent spring weeds and eliminate costly callbacks, allowing you to spend more time doing what matters: maintaining your course and growing your business.
Without proactively maintaining perennial weeds, you incur a number of time- and budget-oriented costs, including:
- Increased material costs from application re-treatments
- Less time to conduct required spring course maintenance
- Heightened likelihood of weed complaints from course guests
- Greater risk to your reputation among course guests and owners
Defendor provides labor-saving benefits by allowing you to reallocate resources the way you need, offering you more flexibility when managing your course.

A fall application of Defendor is especially beneficial because it controls winter-, fall- and many of the spring-related broadleaf weeds. GCSs can start making fall and winter herbicide applications as early as mid-September to ensure greater control. Applicators in the North can use Defendor into November, and GCSs in the South can apply through January, depending on weather conditions. To achieve complete control, a second application may be needed in the spring.
For more information, visit the Defendor product page.
™ ® Trademarks of Corteva Agriscience and its affiliated companies. State restrictions on the sale and use of Defendor apply. Consult the label before purchase or use for full details. Always read and follow label directions. © 2020 Corteva.
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