On June 24 and July 17, numerical differences in visual quality were found. The Primo treated plots showed a slight phytotoxicity on June 24, two weeks after treatment. The phytotoxicity was not detectable after a few days. On September 16, the sod treated with Primo 1EC two weeks before establishment had significantly more root development than sod treated two and six weeks before, two weeks before and after, sod treated two and six weeks after, and the untreated control. Root development was similar for sod treated six and two weeks before and two and six weeks after establishment and sod treated two weeks after establishment.
Timing is in reference to cutting of sod.
Six and two weeks before cutting and two and six weeks after establishment. Sod Harvested on July 23. Frames were pulled on August 4, August 18, September 2, and September 16. Frames were pulled on August 4, August 18, September 2, and September 16. The hydraulic sod pulling device used to measure root tensile strength of the sod in the 1998 Sod Establishment Study.