John from Rocklin, Ca writes
Glyphosate Plus is a non selective herbicide so it will kill blackberry bushes and other listed Perennial & Annual Broad-leaf Weeds, Grasses, Woody Brush and Trees. You would use between 1.3 and 6.5 ounce of Glyphosate Plus per gallon of water depending on the maturity and type of plant you are treating for. Please see the product label complete application instructions.
Answer last updated on: 04/03/2020