FRANKNOTE

The pesticides used in lawn-care products found on shelves nationwide are considered legal by government standards. But broader research on health risks from such chemicals has prompted general warnings. The Environmental Protection Agency, which regulates pesticide use, notes on its own Web site that kids are at greater peril from pesticides because their internal organs and immune systems are developing.

In addition to the scientific debate, lawn care is also highlighting questions about personal-property rights. Some critics say the organic push is a nanny-state attempt to tell people what they can do on their own land.