1st Step: 4 Pre and Post-emergents per year, applied fall and early winter, are the backbone to any weed control program
- Pre-emergents will keep many weeds (but not all) from coming up in the first place. Different chemicals are applied at different times of the year. Additionally, we modify are program each year based on many factors: issues with resistance to specific active ingredients, amounts of rain we have been receiving, and temperatures. Especially here in Central Oklahoma, one year can be quite different then previous years.
- Post-emergents are used to kill weeds that either there is no pre-emergent to keep them from coming up (dandelions, nutsedge) and/or weeds that have broken through the pre-emergent.