Matt from Lawrenceburg,tennesse writes,
How long does Crossbow need to be on the plant to be an effective herbicide?
Crossbow Herbicide is rainfast ater two hours. The amount of time it takes for the product to kill the plants that have been sprayed depend on the plant itself. Generally, it could take between 7-14 days for plants to wilt or die. A second application may be needed depending on the plant. Please check the label for specific wait times for additional applications.
Answer last updated on: 06/29/2015