Quote:
Originally Posted by John Mayes
Not all St. Augustine should be mowed the same height. There are several different strains. The S.A. used for new builds south of 44 is ProVista and needs to be mowed between 3 to 4 inches. But other strains should be kept at 2.5 to 3 inches.
The ProVista strain is tolerant of glyphosate weed killer while the other strains are not.
Best to know what strain you have in order to take care of it.
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Glyphosate is a “kill everything” product and will kill ProVista. Maybe you meant tolerant to 2-4-D instead?