" wrote in message
oups.com...

Pesticides are regulated by the EPA and are subject to rigorous
testing. However, many concerned individuals and groups such as the
SPCP advocate alternative ways to achieve healthy, pest-free lawns and
soil.


Since the only way to test for safety is to dose humans with the stuff,
these chemicals CANNOT be "rigorously tested". Nobody you know will
volunteer for such a thing, as they might for a test of a new medicine.