When weather delays burndown, Spitfire (20 oz) is the only dicamba with an optional 7 day pre-plant interval between spraying and planting. For all other dicambas the wait is 14 days or more. Countdown to planting begins AFTER Spitfire-treated field receives a minimum of ½ inch of rain or irrigation. All other dicambas require 1 full inch. See label for full details.