A mixed combination of weed killer and fertilizer is cheap and easy to use on the lawn. However, the chemicals can damage the environment when they run off into lakes and rivers. They can also cause adverse health problems to pets, gardeners and their children who come in contact with the recently sprayed lawn.
About this Author
Daniel Smith graduated from technical school in 1993 and has been writing since 2005. His has written numerous articles for the instructional website called eHow in areas including gardening, home improvement, celebrating special events and health-related topics.