By Patrick O'Brien and Christopher Hartwiger December 03, 2008 Historically, university fungicide trials have focused on applying product 'x' and rating them to see if they control disease 'y.' While this type of research is beneficial and provides important information, it is unable to get at the following question,'What is the most effective combination of products to control the variety of disease issues in our region?' Bruce Martin and his colleagues at Clemson University have been conducting this type of research for more than ten years and the results have been enlightening.

Bruce Martin, a Clemson University professor of entomology, soil and plant science has recently been awarded the Clemson Alumni Distinguished Cooperative Public Service. Martin has been working on developing “strategic fungicide control programs for golf putting greens in bent grass and bermudagrass greens. Bruce Martin, Ph.D. Clemson University. UPDATE ON NEW FUNGICIDES. FOR TURFGRASS DISEASE. Fungicide Chemical Families. 2.72 lb/gal broad spectrum premixture (rates 0.3-0.73 fl oz/1000 sq.ft.) – golf course turf only. Curative Control of Dollar Spot in Crenshaw. Turf Fungicide Program Trial. Untreated Check. 13 20 27 34 41 48 55 62 69 76 83 90 97 104. Days after 1st application. Incidence/ T urf Q ua. UTC Dollar Spot. UTC Brown Patch. UTC Turf Quality. Bruce Martin, Clemson.

This update will share a few take away points from the Clemson research. Scope of the Trials Dr. Bruce Martin discovered the Program 13 summer bentgrass fungicide program at the Clemson - Pee Dee Station. Martin has conducted numerous trials using a variety of products. He has developed his own program and he challenged fungicide providers to create their own programs. He rated the programs on turf quality, brown patch, and dollar spot control during the summer months. Products were applied every 14 days from mid-May through September.

Results Over the 2007 and 2008 summers, the top rated program was identified as Program #13. A trend that Dr. Martin has observed in this program and others is that early in the season, when disease pressure is lower, there are many older and less expensive products that provide excellent control.

However, as temperatures and disease pressure ratchet up in the summer, some of the newer, more expensive products provide better control. This update was intended to share with you the type of disease research ongoing at Clemson. For specifics, we encourage you to attend one of the many disease seminars Dr. Martin teaches throughout the SE Reigon. Internet Explorer 7 For Windows 7 Ultimate. Source: Patrick O'Brien 770-229-8125 or and Chris Hartwiger 205-444-5079. As a strategic partner, Deloitte delivers thought leadership, business knowledge and innovation concepts to help the organization better serve the game and its constituents.

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