From the Wikipedia on Carbaryl

[Guest guest]

What is interesting here, is the EPA recognizes that it is a like carcinogen. It's been banned by other countries, so why not here.

http://en.wikipedia.org/wiki/Carbaryl

Risk

Carbaryl kills both targeted (e.g. malaria-carrying mosquitos) and beneficial insects (e.g. honeybees), as well as crustaceans.

Although approved for more than 100 crops in the US, carbaryl is illegal in several countries, including the United Kingdom, Austria, Denmark, Sweden, Germany, and Angola.[3]

Safety

Carbaryl is a cholinesterase inhibitor and is toxic to humans. It is classified as a likely human carcinogen by the United States Environmental Protection Agency (EPA.)[4]

Oral LD50:

250 mg/kg to 850 mg/kg for rats

100 mg/kg to 650 mg/kg for mice