OVO , this stuff says NOT to use as a soil drench . the 1x foliar was enough to stop my beisels in their tracks .
Chlormequat Chloride is the same ingredient used in wheat/cereal production, and that’s obviously FDA approved for human consumption. The trick is not to use it as a drench, but rather as a foliar spray, and MOST IMPOTANTLY use it earlier on in the flower period to allow the systemic effects of spraying Chlormequat Chloride on your plants to wear off as much as possible before harvesting them, and consuming them.
Usage: The trick to using this product is to FOLIAR FEED only! NO DRENCHES OR DRIP FEEDINGS ETC...
MB Stretch Stopper is to be used 1 time@ 3ml/Liter.
I purchased months ago so its possible they have changed the directions a little. I've used it both ways with no problems, obviously foliar is more effective though. That small bottle lasts a long time, and its cheap!