Lawn and garden chemicals include some of the most hazardous products in the
home. Products that you use to kill insects, weeds, and fungal diseases may
also be toxic to children, pets, birds, fish, and beneficial insects such as
bees and ladybugs.

• An environmental rating system for commercial lawn and products.
  Grow Smart, Grow Safe rates 350 lawn and garden products—including 93
  commercially available weed killers—according to environmental concerns such
  as short and long-term health hazards, hazards to aquatic life, birds, bees,
  or pets, its half-life in the soil, and if it is a water pollution hazard.
  
• Hands-on prevention, control options, and weeding tools.
  Mulches, hoes, cultivators, weed barriers, and a some tolerance for weeds are
  all viable alternatives to frequent use of weed killers, and all are discussed in Grow Smart, Grow Safe.