To get the most effective results, it's essential to apply pre-emergent herbicides at the right time and follow manufacturer recommendations regarding product selection and application rates. This requires application equipment that is well maintained and calibrated. Using equipment that isn’t calibrated can cause you to under or over apply the product to your lawn causing damage to your turf. Additionally, it's crucial to consider the specific type of warm-season grass you have, as some varieties may have slightly different timing requirements for pre-emergent applications. Consulting with a local horticulture or lawn care expert can provide tailored guidance based on your region and grass type. Contact Turf Magic at (478) 342-1689, [email protected]