Method for controlling PPO resistant weeds

Patent metadata

Field	Value
Publication number	US-10905121-B2
Application number	US-201716324177-A
Country	US
Kind code	B2
Filing date	Aug 1, 2017
Priority date	Aug 9, 2016
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A method for controlling PPO resistant weeds, wherein compounds of formula (I)

wherein the variables are defined as given in the description and claims;

are applied to the PPO inhibitor herbicide resistant weed, parts of it or its propagation material.

First claim

The invention claimed is:

1. A method for controlling the growth of protoporphyrinogen oxidase (PPO) resistant weeds, which comprises contacting the weeds, parts of the weeds, propagation material of the weeds, or habitat of the weeds with compounds of formula (I)

wherein
R 1 is H, F or Cl;
R 2 is F, Cl, Br;
R 3 is H or C 1 -C 6 -alkyl;
R 4 is H or C 1 -C 6 -alkyl;
R 5 is H, C 1 -C 6 -alkyl, C 2 -C 6 -alkenyl;
Q is O; and
W is O;
wherein the PPO resistant weeds are weeds, that are resistant to PPO-inhibiting herbicides except the compounds of formula (I).

2. The method of claim 1 , wherein the PPO resistant weeds are resistant to PPO-inhibiting herbicides selected from the group consisting of fomesafen and lactofen.

3. The method of claim 1 , wherein the PPO resistant weeds are not controlled by the application rate of 200 g/ha or lower of at least one PPO-inhibiting herbicide except the compound of formula (I).

4. The method of claim 1 , wherein the PPO resistant weeds are selected from the group consisting of Acalypha ssp., Amaranthus ssp., Ambrosia ssp., Avena ssp., Conyza ssp., Descurainia ssp., Euphorbia ssp. and Senecio ssp.

5. The method of claim 1 , wherein the PPO resistant weeds are selected from the group consisting of Asian copperleaf, smooth pigweed, Palmer amaranth, redroot pigweed, tall/common waterhemp, common ragweed, wild oat, flixweed, wild poinsettia and Eastern groundsel.

6. The method of claim 1 , wherein the PPO resistant weeds are selected from the group consisting of Palmer amaranth, tall/common waterhemp and common ragweed.

7. The method of claim 1 , wherein the PPO resistant weeds contain a ΔG210 or R98L mutation in the Protox enzyme conferring resistance to PPO-inhibiting herbicides.

8. The method of claim 1 , wherein the PPO resistant weeds contain a ΔG210 mutation in the Protox enzyme conferring resistance to PPO-inhibiting herbicides.

9. The method of claim 1 , wherein the compound of formula (I) is the compound of formula (I).1:

10. The method of claim 1 , wherein a herbicidal composition comprising at least one compound of formula (I), and at least one further compound selected from herbicides and/or safeners is applied to the weeds.

11. The method of claim 10 , wherein the herbicide is selected from the herbicides of class b1) to b15):
b1) lipid biosynthesis inhibitors;
b2) acetolactate synthase inhibitors (ALS inhibitors);
b3) photosynthesis inhibitors;
b4) protoporphyrinogen-IX oxidase inhibitors (PPO inhibitors) other than the compounds of formula (I);
b5) bleacher herbicides;
b6) enolpyruvyl shikimate 3-phosphate synthase inhibitors (EPSP inhibitors);
b7) glutamine synthetase inhibitors;
b8) 7,8-dihydropteroate synthase inhibitors (DHP inhibitors);
b9) mitosis inhibitors;
b10) inhibitors of the synthesis of very long chain fatty acids (VLCFA inhibitors);
b11) cellulose biosynthesis inhibitors;
b12) decoupler herbicides;
b13) auxinic herbicides;
b14) auxin transport inhibitors; and
b15) other herbicides selected from the group consisting of bromobutide, chlorflurenol, chlorflurenol-methyl, cinmethylin, cumyluron, dalapon, dazomet, difenzoquat, difenzoquat-metilsulfate, dimethipin, DSMA, dymron, endothal and its salts, etobenzanid, flamprop, flamprop-isopropyl, flamprop-methyl, flamprop-M-isopropyl, flamprop-M-methyl, flurenol, flurenol-butyl, flurprimidol, fosamine, fosamine-ammonium, indanofan, indaziflam, maleic hydrazide, mefluidide, metam, methiozolin (CAS 403640-27-7), methyl azide, methyl bromide, methyl-dymron, methyl iodide, MSMA, oleic acid, oxaziclomefone, pelargonic acid, pyributicarb, quinoclamine, triaziflam, tridiphane and 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)-4-pyridazinol (CAS 499223-49-3) and its salts and esters;
including their agriculturally acceptable salts or derivatives.

12. The method of claim 1 , wherein an agrochemical composition comprising at least one compound of formula (I) and auxiliaries customary for formulating crop protection agents, and optionally at least one further compound selected from herbicides and/or safeners, is applied to the weeds.

13. The method for controlling the PPO resistant weeds as claimed in claim 1 , wherein the compound of formula (I) is applied in a locus where PPO tolerant crops are grown.

Assignees

• Basf Se

Inventors

• Armel Gregory
• Zagar Cyrill
• Landes Andreas
• Seiser Tobias

Classifications

• A01N43/54 Primary

  1,3-Diazines; Hydrogenated 1,3-diazines · CPC title

• A01N25/32

  Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions · CPC title

• A01N2300/00

  Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48 · CPC title