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Stability of contact insecticides. II—protection of the pyrethrins against ultra-violet photolysis

✍ Scribed by R. E. Blackith

Publisher: John Wiley and Sons
Year: 1952
Tongue: English
Weight: 564 KB
Volume: 3
Category: Article
ISSN: 0022-5142
DOI: 10.1002/jsfa.2740030507

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## Abstract Allethrin, the (±)allylrethronyl ester of (±)__trans__‐ and (±)__cis__‐chrysanthemic acids, is more stable to ultra‐violet photolysis than the natural pyrethrins. It is less well protected by benzeneazo‐β‐naphthol, so that the natural and synthetic insecticides have a similar stability