Photolysis of pesticides: influence of epicuticular waxes from Persica laevis DC on the photodegradation in the solid phase of aminocarb, methiocarb and fenthion

Pesticides with N,N‐dimethyl and thiomethyl moieties (aminocarb, methiocarb and fenthion) were irradiated under artificial light (λ > 290 nm) in an amorphous wax phase from Persica laevis DC. The effect of the presence of the wax on the photolysis rate differed in the three pesticides, increasing...

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Bibliographic Details
Published in:Pest management science 2001-06, Vol.57 (6), p.522-526
Main Authors: Pirisi, Filippo M, Angioni, Alberto, Cabizza, Maddalena, Cabras, Paolo, Cao, Clara Falqui
Format: Article
Language:English
Subjects:
Biological and medical sciences
Carbamates - chemistry
Carbamates - metabolism
Carbamates - radiation effects
Chemical control
Citrus - chemistry
Control
Fenthion - chemistry
Fenthion - metabolism
Fenthion - radiation effects
Food industries
Food toxicology
Fundamental and applied biological sciences. Psychology
Insecticides - chemistry
Insecticides - metabolism
Insecticides - radiation effects
Kinetics
Light
Methiocarb - chemistry
Methiocarb - metabolism
Methiocarb - radiation effects
Models, Biological
pesticides
Phenylcarbamates
Photolysis
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
waxes
Waxes - pharmacology
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Summary:Pesticides with N,N‐dimethyl and thiomethyl moieties (aminocarb, methiocarb and fenthion) were irradiated under artificial light (λ > 290 nm) in an amorphous wax phase from Persica laevis DC. The effect of the presence of the wax on the photolysis rate differed in the three pesticides, increasing it in aminocarb, having little effect in methiocarb and slowing it down in fenthion. The presence of the wax affected the qualitative photodegradation behaviour of all the pesticides. The data obtained were compared with those for pirimicarb, which had been studied earlier. © 2001 Society of Chemical Industry
ISSN:1526-498X
1526-4998
DOI:10.1002/ps.329