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Science 20 March 1970:
Vol. 167. no. 3925, pp. 1620 - 1622
DOI: 10.1126/science.167.3925.1620
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Articles

Enhancement of Photoalteration of Cyclodiene Insecticide Chemical Residues by Rotenone

Glen Wayne Ivie 1 and John E. Casida 1

1 Division of Entomology, University of California, Berkeley 94720

When applied at low concentrations to plant foliage, rotenone catalyzes the photoisomerization of dieldrin and other cyclodiene insecticide chemical residues. This finding of a new type of interaction between pesticide chemicals suggests the possibility of controlling the persistence of residues on plants by use of certain pesticide-photosensitizer combinations and application sequences.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)