Talking Turf โ€“ How to Extend Your Spray Intervals

As managers develop their plans to maximize the effectiveness of spray programs to extend application intervals, Bayer offers some tips to help prolong your dollar spot spray intervals and product recommendations that will give you added confidence as we progress into the heart of golf season.

This year, more than ever, maximizing resources has never been more important. Managers are looking for ways to efficiently manage labour, mowing, time, and ultimately, pest management programs. This can all be challenging, especially when it comes to fairway management

Dollar spot can be one of the most important diseases to manage on fairways, especially as we progress into the summer stress months.

As managers develop their plans to maximize the effectiveness of spray programs to extend application intervals, Bayer offers some tips to help prolong your dollar spot spray intervals and product recommendations that will give you added confidence as we progress into the heart of golf season.

// 28 Days Later: Tips for Extending Dollar Spot Spray Intervals  

Cultural Practices

Immediate benefits

Dew displacement. Rolling, dragging rope, and other dew displacement strategies can significantly decrease dollar spot severity on greens, tees, and fairways. 

Soil moisture. Dollar spot can be more severe on drought stressed turf. Turf maintained under drought stress will also have limited recuperative ability to grow out of dollar spot symptoms. 

Irrigation timing. Recent research from Michigan State University observed significantly less dollar spot severity when daily nighttime irrigation was administered at 10:00 pm compared to any other time. This could be integrated into a dew displacement strategy. 

Fertility. Recent research from University of Wisconsin and Virginia Tech observed significant reductions in dollar spot severity when incorporating nitrogen and ferrous sulfate into your nutrient management program. 

Long term benefits

Thatch management. Thatch can create an excellent overwintering habitat for the dollar spot inoculum. Additionally, thatch can tie up some of the fungicide applied to the turf.

Plant genetics. Plant breeders have done tremendous work in developing more modern cultivars of creeping bentgrass that are more resilient to dollar spot development. Slowly incorporating these newer cultivars will help lower dollar spot epidemics throughout the season. 

Fungicide Considerations

Proper calibration. Calibrate your sprayer before each application and select proper nozzle tips to match the appropriate water carrier volume. 

Predictive disease models. Predictive models will help better time your applications to control important diseases. These models can give you added confidence to extend a spray interval or to delay your next fungicide application. 
Adequate rain fastness. Rainfall or irrigation immediately after a fairway fungicide application can reduce the persistence of those products. 
Fungicide selection. Select fungicides that can provide extended residual dollar spot control while also providing protection against other diseases that are active during the summer months. 
 

Bayer Solutions

Mirage™ Stressgard® (DMI) and Exteris™ Stressgard® (SDHI + QoI) are two preventative and curative fairway dollar spot control solutions that provide 21 to 28 days of protection. These broad-spectrum fungicides also provide long lasting control of other fairway diseases including anthracnose, leaf spot, and brown patch. 

These recommended fungicides include built-in summer stress benefits that come with Bayer’s Stressgard Technology. Stressgard delivers improved turf quality, colour enhancement, selective radiation management and oxidative stress reduction, among others benefits. 

Mirage Stressgard and Exteris Stressgard are a perfect fit for managing dollar spot and maintaining optimal plant health through the upcoming summer.

Visit your local agent/distributor to purchase Mirage Stressgard and Exteris Stressgard products

For more information about fairway disease prevention or Exteris Stressgard, Mirage Stressgard products, contact your local Territory Sales Manager

 
@BayerGolfCA 
1-888-283-6847

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Bayer, the Bayer Cross and Exteris Stressgard and Mirage Stressgard are trademarks of Bayer.