Charles from Jacksonville, Fl writes
Which temperature and wind speed is ideal to apply?
QuickSilver Herbicide is not labeled for Hyprochaeris radicata, which is also Flat weed or False Dandelion but will work for red sorrel. Fertilome Weed Free Zone is safe for many turf types and will eradicate false dandelion. We do not recommend applying when there is wind and you should apply to lawns that are not under stressed and when temperatures are above 85 degrees.
Answer last updated on: 03/22/2018