thimet persisted as such for as long as 32 days. By means of chromatography, 
infrared, and partitioning characteristics, four non-hydrolyzed metabolites 
were identified as the phosphorodithioate sulfoxide and sulfone and the 
phosphorothiolate sulfoxide and sulfone (Bowman and Casida, 1957, 1958; 
Metcalf et al., 1957; Dedek et al., 1962; Woggon et al., 1963). 0,0- 
diethyl phosphorothioic and 0,0-diethyl phosphoric acid were also found 
(Bowman and Casida, 1958). 
When labeled thimet was applied to soil, there was an initial loss by 
volatilization as great as 25% within one hour. After that, little or no 
volatilization occurred. A large portion of the remaining thimet was bound 
to the soil and could not be extracted with chloroform nor identified. As 
the amount of organic material present in the soil increased, the amount 
of thimet recovered decreased, Extraction, column chromatographic and 
partitioning techniques showed that soil applications of thimet were also 
partially oxidized and hydrolyzed (Getzin et al., 1960). 
After exposure of the yeast-like plant Torulopsis to thimet, the 
presence of the phosphorodithioate, phosphorothiolate, and other products 
of oxidation and hydrolysis were shown (Ahmed and Casida, 1958a). 
Thimet was applied topically to the* German cockroach, large milk- 
weed bug, and Rhodanus bugs. Analyses showed the sulfoxide and/or sulfone; 
but there was no evidence for the “oxon' pathway in these insects (Menn, 
1962). When southern armyworm larvae were allowed to feed on red kidney 
bean plants grown in treated emulsions of thimet, results were similar. 
In addition to the sulfoxide and sulfone, 0,0-diethyl phosphorothioate and 
0,0-diethyl phosphoric acid were found (Bowman and Casida, 1958). 
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