Basically I want to argue, for some pesticides (TEPP in particular), just because it is a pesticide, doesn't mean it isn't nerve gas.
" Amb. Ekeus - did you restart VX production after the Iran-Iraq war?
General Hussein Kamal - we changed the factory into pesticide production. Part of the establishment started to produce medicine.
Smidovich asked if the General was referring to the Samarra Drug Establishment.
General Hussein Kamal - Samarra started to produce medicine with workers from Muthanna. Muthanna itself started production of pesticides and insecticides, but some of them turned out to be more difficult to produce than CW. "
http://www.globalsecurity.org/wmd/library/news/iraq/un/unscom-iaea_kamal-brief.htm
So according to Kamal, Iraq has converted chem weapon plants to pesticide production before.