The Invasive Plant Council of British Columbia has produced this video to ensure that backpack sprayers are calibrated properly. This is a critical step in applying the correct dose of herbicide to target invasive plants. Please read the Herbicide Label prior to use, and follow legislation regulations and local bylaws. You are required to consider all other treatment alternatives as part of an integrated pest management plan. Have questions or comments then, submit them below or Contact us directly at 1888WEEDSBC.