Weeds are the number one complaint we hear from homeowners in Ruston and the surrounding areas. The good news? Most weed problems are preventable with proper timing. Here's your guide to when and how to apply weed control in North Louisiana.
Understanding Pre-Emergent vs. Post-Emergent
Pre-emergent herbicides work by creating a chemical barrier in the top layer of soil that prevents weed seeds from germinating. They don't kill existing weeds—they stop new ones from sprouting. Post-emergent herbicides, on the other hand, kill weeds that are already growing.
The Spring Pre-Emergent Window
For Ruston and the rest of Lincoln Parish, your spring pre-emergent should go down between mid-February and early March. The key trigger is soil temperature: once it consistently reaches 55°F at a 4-inch depth, crabgrass and other summer annuals start germinating. By then, it's too late for pre-emergent to be effective.
The Fall Pre-Emergent Window
Many homeowners forget about fall pre-emergent, but it's just as important. Apply it in mid-September to early October to prevent winter annual weeds like henbit, chickweed, and annual bluegrass from taking over your lawn during the cooler months.
When to Use Post-Emergent
If weeds have already appeared, you'll need a targeted post-emergent application. For broadleaf weeds like dandelions and clover, a selective herbicide works well without damaging your turf. For grassy weeds that slipped past your pre-emergent, you may need a specialized product. Always apply post-emergents when temperatures are between 60–85°F for best results.
Don't Forget: Consistency is Key
Weed control isn't a one-and-done task. It requires a seasonal program with properly timed applications throughout the year. Our lawn care programs at Southern Living Landscape Management include scheduled weed control treatments so you never have to worry about timing again.