"Exposure to pesticides – even at relatively low levels – may increase an individual’s risk of developing Parkinson’s disease by 70%, according to a study of more than 140,000 people. Researchers say that the findings strengthen the hypothesis that such chemicals somehow promote the development of the disease."

Most pesticides are known or suspected carcinogens and taste very bad. They are a kill-all replacement for a healthy ecosystem. If you want a better lawn or farm, either build greenhouses and keep the pests out literally, or buy dragonflies and keep starlings and bats. Dragonflies, starlings and bats are cheaper than using pesticide and they add to an ecosystem. They are ecomedicine.

Or consider an alternative lawn. They're out there.

From May 2005
And 2004