Do I have to water when you put out a weed application?
Yes. Anytime we make an application to your lawn you must water within days of that application. Pre-emerge only needs to be lightly watered and can be done as early as 6 hours after the application or up to 3 to 5 days after. Fertilizers can be watered immediately following the application but must be watered within 1 to 2 days after the application. Any insecticide, with the exception of the fire ant application, does not need to be watered in. The fire ant application needs to be watered within 3 to 5 days of the application.