Golf Course Management

JUL 2015

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

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Page 90 of 139

07.15 GOLF COURSE MANAGEMENT 89 in controlling/reducing most species of weeds and perennial ryegrass (L olium perenne) in Kentucky bluegrass (Poa pratensis). Fraze mowing helps eliminate annual bluegrass (Poa annua), which releases large amounts of seed and is weakly rooted in the soil. Fraze mow - ing removes the Poa annua and the seed in the upper layer of soil. There are some limitations to fraze mow - ing and things that managers must real- ize before going forward with the process. The initial results after fraze mowing can be quite alarming — the grass will look like it has been scalped down to the surface (3). Because this process is so destructive to the aboveground part of the plant, managers need to make sure they allow adequate time for the grass to recover. Machinery Different types of machines can be used for fraze mowing. One, the Koro Field Top- maker, is made by Imants from the United Kingdom, and another popular model is the Combinator, from GKB machines in the Netherlands. The Koro machine has hun - dreds of little teeth on a rotary shaft that spin around to shear off the top of the turf. The GKB Combinator, which we used for this experiment, has L-shaped blades that swing A close-up of the GKB Combinator in action. Photo courtesy of Iowa Cubs Sports Turf Layout of the fraze mowing experiment after the treatments had been applied. Photos by Kevin Hansen

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