Herbicidal composition and method for controlling weeds

• US 10,674,725 B1
• Filed: 03/20/2019
• Issued: 06/09/2020
• Est. Priority Date: 03/20/2019
• Status: Active Grant

• Current Assignee: Sumitomo Chemical Company Limited
• Original Assignee: Sumitomo Chemical Company Limited
• Inventors: Sada, Yoshinao
• Primary Examiner(s): Ghali, Isis A
• Application Number:
  US16/359,791
• Time in Patent Office: 447 Days
• Field of Search: None
• CPC Class Codes: A01N 37/40 having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
• CPC Class Codes: A01N 37/48 Nitro-carboxylic acids; Derivatives thereof
• CPC Class Codes: A01N 41/06 Sulfonic acid amides
• CPC Class Codes: A01N 43/54 1,3-Diazines; Hydrogenated 1,3-diazines
• CPC Class Codes: A01N 43/653 1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• CPC Class Codes: A01N 43/84 six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,4
• CPC Class Codes: A01N 43/90 having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system

Abstract

Provided is a herbicidal composition comprising a PPO inhibitor and dicamba or its salt, wherein the weight ratio of the PPO inhibitor to dicamba or its salt is less than 1/2,000. The herbicidal composition can effectively control weeds with reduced crop injury.

Claims

1. A herbicidal composition comprising a PPO inhibitor and dicamba-biproamine, wherein the weight ratio of the PPO inhibitor to dicamba-biproamine is from 1/2,000,000 to 1/2,000, wherein the PPO inhibitor is selected from the group consisting of saflufenacil and trifludimoxazin.

3. The herbicidal composition according to claim 1, wherein the PPO inhibitor is trifludimoxazin.

2. A method for controlling weeds in a crop field comprising a step of applying a PPO inhibitor and dicamba-biproamine to the weeds or a soil of the place where the weeds are growing or will grow, wherein the weight ratio of the PPO inhibitor to dicamba-biproamine is from 1/2,000,000 to 1/2,000, wherein the PPO inhibitor is selected from the group consisting of saflufenacil and trifludimoxazin.

4. The method according to claim 2, wherein the PPO inhibitor is trifludimoxazin.