Daniel M Stout

US Patent:

46787747, Jul 7, 1987

Filed:

Jun 6, 1985

Appl. No.:

6/741926

Inventors:

Irving Putter - Martinsville NJ
Daniel M. Stout - Kirkwood MO

Assignee:

Merck & Co., Inc. - Rahway NJ

International Classification:

A01N 4304
A01N 2500

US Classification:

514 30

Abstract:

There are disclosed novel formulations of avermectin compounds and a substrate which demonstrate markedly enhanced insecticidal activity over that which would be observed with other formulations. Avermectin natural product compounds and certain semisynthetic derivatives thereof are compounds known to be highly effective broad-spectrum antiparasitic and pesticidal agents. However, when such compounds are formulated into the instant composition, the activity observed is increased to at least 10-times that which would be expected. The instant substrate is preferably a highly dispersed, amorphous form of hydrophyllic silicon dioxide.