Lisa from Ozark writes
Pre-emergent applications work best when applied in early fall and spring. Hi-Yield Weed and Grass Stopper with Dimension Herbicide can be applied from late summer through early fall (late August through November). We would recommend contacting your local extension office for the exact best time to apply this product in your area. This product is only a pre-emergent product that prevents weeds from germinating. It will not kill any actively growing weeds.
Answer last updated on: 06/21/2022