The persistence of ethion and Zolone residues on grape foliage in the central valley of California.
Leffingwell-JT; Spear-RC; Jenkins-D
Arch Environ Contam Toxicol 1975 Mar; 3(1):40-54
In an effort to expand knowledge of the relationship between foliar residue levels and occupational hazard, an examination of the persistence and transport of ethion (563122), Zolone (2310170), and their oxygen analogs on grape foliage was conducted. Both dislodgeable and penetrated residues were followed for 28 days post- application for both insecticides while soil surface residues were followed for ethion only. A marked difference is seen in the decay rates of the dislodgeable vs the penetrated residues of ethion, the dislodgeable residues decaying more quickly. This difference is not apparent for Zolone. Of particular significance to worker hazard is the finding that the oxones of both ethion and Zolone in the dislodgeable residues reach a plateau after approximately seven days and do not degrade further by day 28.
NIOSH-Publication; NIOSH-Grant; Thioates; Organo-phosphorus-insecticides; Pesticide-residues; Soil-analysis; Pesticide-metabolism; Agricultural-chemicals; Agricultural-workers; Chemical-properties
None University of California 108 Earl Warren Hall Berkeley, Calif 94720
Archives of Environmental Contamination and Toxicology
University of California Berkeley, Berkeley, California