... 40%ECClassification: Insecticide Common name omethoate (BSI, E-ISO, (m) F-ISO) IUPAC name O,O-dimethyl S-methylcarbamoylmethyl phosphorothioate Chemical ... (24 h) for male rats 232, female rats c. 145 mg/kg. Not irritating to the skin; slightly irritating to the eyes (rabbits). ... potatoes, ornamentals, and other crops. Application rates vary from 35 to 1000 g/ha, depending on crop, pest, pest stage and ...