Method for controlling harmful plants in rice with 2-benzoyl-1,3-cyclohexanedione derivatives

US5318947A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Oswald Ort · Königstein, DE
• Lothar Willms · Hillscheid, DE
• Hans-Joachim Zeiss · Pocking, DE
• Klaus Bauer · Rodgau, DE
• Hermann Bieringer · Eppstein, DE

Key dates

• Filing date: Jun 9, 1992
• Grant date: Jun 7, 1994
• Expiry date: Jun 9, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24777
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula I ##STR1## where R.sup.1 to R.sup.9 are as defined in claim 1 are known as herbicides. When these compounds are applied in traditionally used amounts, this often results in damage to crop plants in the crops, when it is desired to achieve sufficient action against weeds typically occurring therein. However, according to the invention it is possible to reduce the application rates to 0.001 to 0.5 kg of a.i./ha in rice growing, and the action obtained against important harmful plants in rice from the species Sagittaria, Cyperus and Scirpus Eleocharis is nevertheless sufficient.