Josh from Northeast writes
There isn’t a set window of application that has to be maintained or followed, but we often recommend giving a few days between treatment if you are applying several items to the lawn to avoid any unnecessary stress to it. Pre emergents and fertilizers usually require a higher water volume or watering in after application, whereas the Bifen I/T would use less water per surface area and would need to remain on the surface and not be washed away. Application a few days after a pre em or fertilizer application would be fine.
Answer last updated on: 04/08/2021
