Diamond Shamrock Corporation

Rhone-poulenc Agrochimie

Diamond Shamrock Chemicals Company

Robert E Holm

Han San Ku

Robert D Battershell

William J Pyne

Paul H Schuldt

A series of ester and salt derivatives of fluorene-9-carboxylic acid and fluorene-1-carboxylic acid exhibit significant plant growth regulating properties, useful in controlling the size, shape, dormancy time, flowering time and/or fruit setting of plants, depending upon the concentrations used. They may also be used to control the growth rate, texture and color of turf grass. Presently preferred compounds include the cis-2,5-dimethylpyrrolidine salt of 1-fluorenecarboxylic acid, 9-cis-2,5-dimethyl-1-pyrrolidinyl-2-chlorofluorene-9-carboxylic acid, methyl ester, the 2,6-dimethylpiperidine salt of 1-fluorenecarboxylic acid, and the cis-2,5-dimethylpyrrolidine salt of 9-hydroxyfluorene-9-carboxylic acid.

Fluorenecarboxylic acid derivatives

This invention provides synergistic herbicidal compositions of glycolate and lactate esters of phenoxybenzoic acids with cyclohexonediones. These compositions are relatively safe to soybeans and have unexpected herbicidal effectiveness against broadleaf weeds such as velvetleaf.

Synergistic herbicide compositions of phenoxybenzoic acids and

A composition consisting essentially of 2-chloroethylphosphonic acid and certain imides, carbamates, or tetrachloroisophthalonitrile, increases the ability of 2-chloroethylphosphonic acid alone to cause the release of ethylene in plant tissue when applied to same.

Increasing chloroethylphosphonic acid-induced ethylene response

A composition comprising two compounds from the group cycloheximide, 5-chloro-3-methyl-4-nitro-1H-pyrazole and glyoxal dioxime and optionally including an additive compound capable of enhancing the activity of the composition is a synergistic combination capable of promoting fruit, especially citrus fruit, abscission when applied to trees bearing same.

Multicomponent fruit abscission compositions

A combination of 5-chloro-3-methyl-4-nitro-1H-pyrazole and certain imides, carbamates, or a phthalonitrile is a synergistic composition capable of promoting fruit, especially citrus fruit, abscission when applied to trees bearing same.

Compositions containing 5-chloro-3-methyl-4-nitro-1H-pyrazole as fruit

A combination of cycloheximide and certain imides or carbamates is a synergistic composition capable of promoting fruit, especially citrus fruit, abscission when applied to trees bearing same.

Cycloheximide-imide or carbamate combinations as fruit abscission agents

A combination of cycloheximide and chlorinated di- and tricyanobenzenes is a synergistic composition capable of promoting fruit, especially citrus fruit, abscission when applied to trees bearing same.

Growing community of inventors

Painesville, OH, United States of America

Robert E Holm