When is the best time to apply pre-emergent herbicides?

Applying pre-emergent herbicides is most effective when done before weed seeds have had the opportunity to germinate. These herbicides work by creating a chemical barrier in the soil that prevents the germination and growth of targeted weed seeds. The ideal timing for this application is typically in early spring or fall, which corresponds with the life cycles of many common weeds.

Applying the herbicides at this strategic time ensures that the product is present in the soil when the soil temperatures and moisture become conducive to weed seed germination. It maximizes the potential for preventing weed establishment, thereby reducing the need for additional control measures later in the growing season.