Posted 6/17/2011 22:19 (#1823312 - in reply to #1823299) Subject: Re: GlyStar Plus rainfast?????
From the NDSU weed control guide: "Allow a 6-12 hour rainfast period for all Roundup formulations regardless of label rainfast recommendation." That means even the claims
of the super-duper Monsanto versions.
Remember, glyphosate is very water soluable, and it does not take much rain or dew to roll it off.