VOC compliant, non-selective soil sterilant. Controls weeds and grasses by contact and root action. Contains two active ingredients: Bromocil, which controls weeds through root contact and gives season-long residual control, and 2-4-D which controls weeds through foliage and gives immediate weed burn-down. This weed killer is particularly effective in areas where undesirable vegetation is tall and well-established. Coverage: Annual weeds: 1-2 gal / 1000 sq ft Perennial weeds: 3-5 gal / 1000 sq ft .