Matt from Tracy, Ca writes
How soon does it need rain to be effective?
Yes, since Esplanade 200 SC is a pre-emergent herbicide, it needs to be watered in to be effective. Per the product label: The herbicide needs to be activated prior to weed germination for most effective control. For maximum activity against germinating weeds, Esplanade 200 SC requires rainfall (minimum 0.25 inches) within several weeks after application to activate the herbicide.
Answer last updated on: 12/05/2017