Abstract
Parathion escaping from a Potter spray tower in a laboratory room contaminated this room and an adjoining office and shortened the usual 15-day life of caged adult oriental fruit moths, Grapholitha molesta (Busck), to 4–8 days. A spray of malathion in a greenhouse compartment contaminated screen cages with similar effects. Contamination persisted for at least 3 weeks. Washing cages in solutions of sal soda or trisodium phosphate adequately cleaned lightly contaminated cages but not those with heavier desposits of parathion. Moths dying in the contaminated cages and in others treated with known amounts of parathhion, malathion, azinphosmethyl, Banol® (3,4-xylenol, 6-chloro-methylcarbamate), carbaryl, DDT, endosulfan, Imidan® ( O, O -dimethyl S -phthalimidomenthyl phos-phorodithioate) had swollen abdomens as a result of inflation of the crop, presumably with air Parathion produced similar symptoms in adults of the codling moth, Carpocapsa pomonella (L.), and the red-banded leaf roller, Argyrotaenia velutinana (Walker.)
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