Pay attention to the third paragraph. I'll highlight it for you.
Early tests for chemical agents at the compound were inconsistent. Some showed the presence of so-called G-Series nerve agents, which include tabun and sarin, both of which Iraq has been known to possess.A hand-held scanning device also indicated the soldiers had been exposed to a nerve agent. Other tests, however, came back negative.
More precise tests by an Army Fox mobile nuclear, biological and chemical detection laboratory indicated the existence of sarin and triggered the evacuation of the captured military compound by dozens of soldiers.
Above from a Knight Ridder report in Sydney Morning Herald, linked here
And pesticides are incredibly chemically similar to nerve agents; it's just nerve gas for bugs.
It's interesting you think Iraqi military compounds keep pesticides around but not chemical warfare agents.
Not particularly rational are you?
You seem to be making a case that Iraq does not have any chemical weapons. Is this your contention?