The Procter Gamble Company

Wayne I Fanta

Joel I Shulman

Francis J Cracco

Acaricidal compositions having low toxicity to plants comprising adducts of bis(tri-alkyltin)oxide, wherein the alkyl groups contain from 5-7 carbon atoms, and CO.sub.2, CS, or SO.sub.2, and an inert carrier. Acaricidal methods comprising contacting plants which are infested by acarids, or which are subject to infestation by acarids, with an acaricidally effective amount of the adducts are also disclosed.

Adducts of bis(tri-alkyltin)oxide used as acaricides

Cyclopropanecarboxylic acid esters of 3-coumaranol and substituted 3-coumaranols possessing useful insecticidal properties.

Insecticidal method utilizing certain coumaranol esters of cyclopropane

Described are certain spiro carboxylic acids and their allethrolone esters. The esters of these acids possess unique insecticidal properties and are useful as such in home, garden and agricultural applications.

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Colerain Township, OH, United States of America

Wayne I Fanta