You should not use herbicides near waterways to avoid contaminating the water. If necessary, apply herbicides in a narrow spray, and do not apply in windy weather or just before rain or irrigation. Consult the Water Tox Database listed below for the runoff and leaching risks of specific pesticides.
About this Author
Melody Lee worked as a newspaper reporter, copywriter and editor for 5 years. In addition, she has edited magazine articles and books. Lee holds a degree in landscape design and is a Florida master gardener. She has more than 25 years of gardening experience, which includes working at nurseries and greenhouses.