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Do-It-Yourself Research: Simple, Effective DIY Tips to Improve Your Course

July 13, 2010

I often write about some of the various research projects that I have going on for the blog. While research is a big part of what we do at the University some of the best research is done by the end users, golf course superintendents themselves. On-course research is a great way to test new products or re-evaluate existing ones.

Editor’s note: The remainder of this article was submitted by Todd Burkdoll, BASF Professional Turf & Ornamentals Technical Specialist.

Every product used to manage a golf course is tested extensively before it ever gets to the maintenance building. But experienced superintendents know that products researched in other locations with different conditions may perform slightly differently on their course. To more completely understand a product’s performance on your course, do as the university experts do. Research it.

Do It Yourself (DIY) turf management research doesn’t need to be costly or complicated. Simple, scaled-down yet strategic techniques can assure you that you’re using the best tools to meet your course’s unique needs.

Common Research
Just about any golf course management technique or tool can be researched. Here is a short list of typical research subjects:

• Turf varieties – What grows best on your fairways, colonial bentgrass, creeping bentgrass or perennial ryegrass? Which variety of Kentucky bluegrass should you use in your roughs? Testing grass varieties side-by-side will help you learn what the top performers are on your course.

• Herbicides, fungicides, insecticides and plant growth regulators – Research can compare different products or one product with varying timing, rates or growing conditions.

• Fertilizers – What kind, when, where and how much?

• Cultural practices and equipment – Testing some of the many methods of aeration, top dressing, mowing, rolling and de-thatching should show you what works best for your course.

Data Collection Basics
Similar to turf test plots at universities, you should visibly mark trial areas. Extensive mowing schedules make it nearly impossible to come back to your on-course research area two or three days later and know where you applied a fungicide or tried a different setting on an aerator. Identifying plots with marking paint and routinely re-marking them so they can easily be found is crucial. It’s also important to keep a written map of all trials.

Another recommendation is to replicate research. Say for instance you want to evaluate Insignia® fungicide for summer patch control on fairway turf. Replicating the application two or three times allows you to evaluate the average of the results for a more accurate view of performance.

Always follow label instructions and use products during the same time period you would normally do so, especially for chemical products. The goal of DIY research is to learn how products work under your real-world conditions.

Location
There are several things to consider when choosing where on your course to conduct research. First and foremost, consider what you’re studying and what the worst-case scenario might be. It may not be smart to test a new herbicide on a highly visible area of your course. Would you want to risk discoloring the Hole 18 fairway?

Choose areas representative of your course as a whole in order to fairly evaluate products. When testing fungicides or herbicides, it’s better to avoid areas with high or low disease or weed pressure. Utilizing an area that’s typical of your course will make positive results easier to replicate on a larger scale when you start using a product in earnest. Similarly, avoid areas that are topographically unique. If only one portion of your course is hilly, for example, you probably don’t want to do your testing there.

Research Partners
Don’t let the term “do-it-yourself” limit you. DIY research doesn’t have to be done without help. You have limited time and resources, and seemingly unlimited responsibilities so consider working with others – be it university researchers, manufacturing representatives or nearby superintendents. Partnering with others is a great way to continue learning and improve management techniques without being overwhelmed.

Working with university researchers can be particularly beneficial. Collaboration provides another set of trained eyes that can monitor results, provide recommendations and give insights into the latest turf management trends. It also gives university researchers a real-world venue to conduct studies. All the while it improves your course for golfers. Everybody wins.

Other Tips
• Conduct research on small plots. You don’t want to tie up a lot of the course with research plots.

• Communicate results. Post informal research results on your Web site or in your newsletter so members are aware of your efforts to improve the course.

• Beg, borrow and steal research ideas from nearby courses. Introduce yourself to other superintendents in your region and pick their brains about what they’re doing on their course. Chances are they’re doing something you should try.

• Invest in – and use – a decent digital camera. Before-and-after and side-by-side photos come in handy when evaluating research results. It’s also a great way to show off your work to your board of directors or Greens Committee.

Keep Improving
DIY research is an excellent way to make your course the best it can be without breaking the bank. It’s an efficient way to test new products, equipment and techniques so you know exactly what to expect when you incorporate them full-scale into your course management plan.

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CORSAIR HERBICIDE TRIAL 2010-SHAWN FOPMA

January 6, 2011

The information below is a report on a Corsair Herbicide trial conducted by undergraduate student Shawn Fopma at Wakonda golf club in Des Moines during the 2010 season. It was part of a Horticulture 490 special studies course.
 

Corsair Herbicide Treatment
Shawn Fopma
Iowa State University

In 2008, a major re-grassing project took place on greens, fairways, bluegrass green surrounds and first cut of rough at Wakonda Club. Two years later, unsightly perennial ryegrass plants had begun to germinate throughout the newly seeded Pennlinks II/Penneagle II creeping bentgrass fairways. Due to the contrasting colors of bentgrass and ryegrass, a test plot was set up to test the effectiveness and efficiency of Corsair herbicide. Corsair is a selective herbicide, which controls tall fescue, ryegrass, and many broadleaf weeds in turfgrass. Corsair selective herbicide is a dispersible granule that, when mixed with water, can be applied as a spot or broadcast spray treatment. Also, Corsair is a very active compound at low rates, which needs adequate moisture by rainfall or irrigation to activate the herbicide.

For our test, a 6,000 ft2 test plot was set up on the 11th fairway, as well as, a 4,000 ft2 test plot on the fairway nursery. A 4’ x 8’ sheet of plywood was laid on each test plot to cover a section of grass, which we used as a control.

For the first test, a tank mix consisting of 0.18oz of Corsair, 0.4oz of buffer and 20 gallons of water was produced. A buffer product was added due to the high alkaline-levels in the water. Then, the Corsair was applied at an extremely low rate of 0.009oz/1000 ft2. Our plan was to start with a low rate and make multiple applications at this rate. The goal of this application was to see Corsair’s effectiveness at a low rate with multiple applications.

Approximately two weeks following the first application, another Corsair application was applied to the test plots at the same low-rate. That same day, another test plot similar to the first two was created to test Corsair at a higher rate. During this test, Corsair was applied at 0.03oz/1000 ft2. According to the label, this application would be considered a low-medium rate. The goal of this application was to see how the surrounding bentgrass reacted to a higher rate of Corsair.

 

Overall, the Corsair tests proved effective; notable reduction of ryegrass was seen in all plots, especially the test plot in which Corsair was applied at a higher rate. Little to no chlorotic effects were observed on bentgrass test plots. The only problematic area observed was an area in which cart traffic was heavy on multiple days of significant heat and humidity. Due to this past summer’s high disease pressure and negative weather conditions, turf conditions became undesirable so the program was not continued; however, it is expected to continue in 2011.

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