Technical


Instrata has been a key part of his armoury at that timing but, with only one application available. He was keen to try out two applications of the new Instrata Elite, particularly since his August renovation practices tend to be more aggressive than in the spring, which raises the risk of attacks and reinforces the need for clean turf to aid faster recovery before the winter for the 18-hole Berkshire course. “If we can keep the surfaces


clean and disease free until after Christmas, then surfaces typically will stay good through to the spring,” reported Matt. “The intensity of disease pressure tends to ease off and members’ expectations are slightly more tolerant through late winter.” “We have had good experience with Medallion TL used in the winter months, so were confident that the fludioxonil would be effective. Coupled with a systemic active, it appeared to fit the variable weather conditions with intermittent growth.” He pointed out that it was


clearly apparent that where he had used the Instrata Elite the greens remained absolutely clean, when some of the approaches and collars that were not treated were smashed with disease. “It was certainly under high


disease pressure right through to the end of the year, but performed very well throughout the time. It was noticeable that the greens were as good as ever, if not better.” He cited that turf quality and playing surface consistency has


been a key objective of the latest course management plan, including ITM techniques and proactive prevention of disease. Matt’s trial report highlighted


that Microdochium was active on all greens in late October, and spreading to affect large parts of the surface. Mowing height was raised from 4mm, with grooming twice a week, up to 4.5mm in late October and 5mm in early November. Taking off the stress by raising


the cutting height, in combination with iron application and Instrata Elite application to stop disease, aided recovery, such that by mid- November all the effects of Microdochium scars had grown in and no signs of disease - even though the disease pressure was very high. “By early November, the greens


were very good. We were able to get on and safely slit greens to 15cm, brush, mow and turf iron - superb,” he reported. Matt advocates the use of a


combination of indicator greens, his own experience and GreenCast, along with other weather data to decide when to spray. “We also have a brilliant network of local greenkeepers who are always in conversation on social media, so get to know what's about and what others are doing, which is a great help,” he added. “There are always new things to try and improvements to be made, with the positive feedback from members and the club indicating we are managing to get it right,” he added.


PC AUGUST/SEPTEMBER 2017 I 137


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