Cody from Amarillo, Tx writes
Rained 4 hours after a foliar application. Do I need to respray?
Normally as long as an insecticide like Merit 2F has had at least 6 hours of dry time after it has been applied, then it is considered rain fast to most rain conditions that would come afterwards. If it rained as early as 4 hours after application you may need to reapply.
Answer last updated on: 04/13/2017
