US 12,336,536 B2
Method for controlling herbicide resistant or tolerant weeds
Helmut Kraus, Research Triangle Park, NC (US); Bernd Sievernich, Hassloch (DE); Mariano Etcheverry, Kiev (UA); Richard R. Evans, Raleigh, NC (US); Ryan Louis Nielson, Schriesheim (DE); Andreas Landes, Roemerberg (DE); Cyrill Zagar, Raleigh, NC (US); and Rex A. Liebl, Raleigh, NC (US)
Assigned to BASF AGRO B.V., Arnhem (NL)
Appl. No. 15/741,454
Filed by BASF Agro B.V., Arnhem (NL)
PCT Filed Jul. 6, 2016, PCT No. PCT/EP2016/066012
§ 371(c)(1), (2) Date Jan. 2, 2018,
PCT Pub. No. WO2017/009148, PCT Pub. Date Jan. 19, 2017.
Claims priority of provisional application 62/190,788, filed on Jul. 10, 2015.
Claims priority of application No. 15191791 (EP), filed on Oct. 28, 2015.
Prior Publication US 2018/0368411 A1, Dec. 27, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. A01N 43/90 (2006.01); A01N 25/00 (2006.01); A01N 37/22 (2006.01); A01N 39/02 (2006.01); A01N 41/10 (2006.01); A01N 43/20 (2006.01); A01N 43/54 (2006.01); A01N 43/56 (2006.01); A01N 43/60 (2006.01); A01N 43/80 (2006.01); A01N 43/86 (2006.01); A01N 47/36 (2006.01); A01N 47/38 (2006.01)
CPC A01N 43/90 (2013.01) [A01N 37/22 (2013.01); A01N 39/02 (2013.01); A01N 41/10 (2013.01); A01N 43/20 (2013.01); A01N 43/54 (2013.01); A01N 43/56 (2013.01); A01N 43/60 (2013.01); A01N 43/80 (2013.01); A01N 43/86 (2013.01); A01N 47/36 (2013.01); A01N 47/38 (2013.01); A01N 2300/00 (2013.01)] 11 Claims
 
1. A method for controlling undesirable vegetation which comprises applying to the vegetation or the locus thereof a herbicidally effective amount of (±)-2-exo-(2-methylbenzyloxy)-1-methyl-4-isopropyl-7-oxabicyclo [2.2.1]heptane, any of its individual enantiomers or any non-racemic mixture thereof (herbicide A) wherein:
the undesirable vegetation comprises at least one herbicide resistant or tolerant weed species which is selected from (A) Poa annua and (B) Digitaria insularis;
the herbicide resistant or tolerant weed species is a biotype with resistance or tolerance to at least one herbicide selected from the group consisting of acetyl COA carboxylase (ACCase) inhibitors, acetolactate synthase (ALS) inhibitors, and photosystem II (PS II) inhibitors;
the herbicide A is the only herbicidally active ingredient;
the herbicide A is applied in an amount of (A) 50 to 500 g/ha when the herbicide resistant or tolerant weed species is Poa annua or (B) 10 to 250 g/ha when the herbicide resistant or tolerant weed species is Digitaria insularis,
the herbicide A is applied before emergence of the undesirable vegetation,
the herbicide A has a herbicidal activity of at least 85 against the at least one herbicide resistant or tolerant weed species,
the herbicide A has a herbicidal activity of at least 85 against a sensitive standard of the at least one weed species when applied in the same amount as against the at least one herbicide resistant of tolerant weed species, and
the herbicidal activity is expressed as a percentage of weed aerial moieties destroyed by application of the herbicide A.