Chapter 7: Weed Control

Table of Contents

A robust roadside planting featuring yellow and purple flowers.
While other weed control methods have a place in an Integrated Roadside Vegetation Management approach, there is no better long-term way to control weeds in roadsides than establishing native vegetation.

When developing a county weed control program, the objective is to control weeds in a way that is fiscally responsible and protective of groundwater and surface water. Not only is roadside weed control a best practice in integrated roadside vegetation management (IRVM), but it is also mandated by Iowa Code Chapter 317, which requires counties to control weeds growing in their roadsides. An IRVM approach relies on various weed control methods emphasizing cultural control—establishing and promoting healthy, native vegetation—and does not rely exclusively on herbicides.