Read the label of an herbicide before you use it, and follow the instructions to the letter. Don't spray on a hot or windy day, and don't let the spray touch desirable plantsùit'll kill them.
Safety-related resources on the Web:
Index of Occupational Safety and Health Resources (http://turva.me.tut.fi/~oshweb/)
National Safety Council (http://www.national-safety-council.ie/)
National Institute for Occupational Safety and Health (http://www.cdc.gov/niosh/homepage.html)
Other safety Web sites
The Pros Say...
To make digging easier, make sure the lawn is moist before you start.
Tools
spade
steel rake
wheelbarrow
spray tank
sod cutter
Tool and hardware-related resources on the Web