Mr. Johnson, who has a background in pesticides, would become the first career scientist to lead the agency.
It has also been used as an ingredient in certain pesticides.
But fruit and vegetable skins are also high in pesticides, so it's toss-up really.
It is used as an inert ingredient in pesticides and herbicides.
Previously, only List 4 ingredients were permitted in organic pesticides.
Some is also used in pet litter, pesticides, and other products.
The development of the carbamate insecticides has been called a major breakthrough in pesticides.
Over all, the lab can save farmers more than $5 million annually in pesticides, officials estimate.
Other manufacturers said they could support the provision to end the trade in banned pesticides.
They then patented the technology and by 2006, it was used in pesticides.