When is the best time in spring to apply crabgrass control in central kentucky
Franklin County Kentucky
March - mid April. Smooth crabgrass typically germinates in early to mid-April in Kentucky. The herbicide will need to be in place before it emerges.
Detailed weed control in lawns, including recommended timing and chemicals, can be found in the UKy publication AGR-208 "Weed Control for Kentucky Home Lawns" (http://www2.ca.uky.edu/agc/pubs/AGR/AGR208/AGR208.pdf).