Jim from Dallas Fort Worth writes
The ideal time to apply a fall pre-emergent herbicide like Dimension 2EW Herbicide to your yard is between August and November when the soil temperature is below 70 degrees and dropping. You may contact your local cooperative extension office to determine the correct timing of the application as this will vary greatly from region to region or search online for best time to apply in (your area). A lot of universities have great articles for this.
Answer last updated on: 10/01/2021
