PACE Turf - Turfgrass Information Center

Kikuyugrass quality improvement using Primo growth regulator

Summary: Primo, at all rates tested, reduced clipping yields and improved turfgrass quality 28 days after treatment. The amount of clipping reduction increased with increasing rates of Primo. The 0.50 and 0.75 oz Primo/1000 sq ft rates provided 50% reduction in clippings 28 days after treatment (DAT). There was no significant difference between the 0.50 and 0.75 oz/1000 sq ft treatments at the 21 and 28 DAT ratings when clipping yields demonstrated the greatest reductions. Visual turfgrass quality was reduced in all treatments at the 7 and 14 DAT ratings compared to the non-treated check, but, visual quality of the treated plots surpassed the non-treated check at 28 DAT. Based upon these results, the 0.5 oz/1000 sq ft treatment provides the best performance at the lowest rate.

Printable version of full report

Principal Investigators:  Larry Stowell, Ph.D. and Wendy Gelernter, Ph.D.

Cooperator: Reed Yenny, CGCS Mesa Verde Country Club

Sponsor: Ciba

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