Herbicidal compositions and method of safening herbicides using benzothiazole derivatives

US6281168A · kind A · utility

Assignee

• American Cyanamid Company · US

Inventors

• Dale L. Shaner · Lawrenceville, US
• Helmut Siegfried Baltruschat · Dülmen, DE
• Norbert Nelgen · Jugenheim, DE

Key dates

• Filing date: Jan 18, 2000
• Grant date: Aug 28, 2001
• Expiry date: Jan 18, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/82
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to methods for protecting cereal crops from injury caused by a herbicidally effective amount of a herbicide, in particular, herbicides selected from the group consisting of AHAS-inhibiting, ACCase-inhibiting and HPPD-inhibiting herbicides, which comprises applying to the crop plant, the seed of the crop, or the soil surrounding the crop or crop seed an effective non-phytotoxic antidotal amount of a benzothiazole derivative of formula I ##STR1## wherein PA1 A represents an alkyl, alkoxy, haloalkoxy, hydroxy, cyano or nitro group or a group of the formula ##STR2## PA1 in which W represents O or S, and R represents a hydroxy, thiol, alkoxy, thioalkyl, amino, alkylamino or dialkylamino group; and PA1 X represents CH or N; Also included are safened herbicidal compositions comprising a herbicidally effective amount of a herbicide and an effective nonphytotoxic antidotal amount a benzothiazole derivative of formula I.