Broadleaf herbicides are applied as liquids or granules. Before applying any herbicide, carefully read and follow label directions. When applying liquid formulations, spray drift can be avoided by following simple precautions. Don't spray when wind speeds exceed 5 mph. Also, don't spray when temperatures are expected to exceed 85oF within 24 hours of application.
Coarse droplets are less likely to drift than fine sprays.
Select nozzles that produce coarse droplets and use low sprayer pressure when applying liquid broadleaf herbicides. Granular herbicides are often combined with fertilizers. To insure adequate leaf surface and herbicide absorption, don't mow the area 2 or 3 days before treatment. After treatment, allow another 2 or 3 days to pass before mowing. This allows adequate time for the herbicide to be translocated within the weeds.