Compositions and methods for controlling fungal and bacterial diseases in plants

Patent metadata

Field	Value
Publication number	US-10221428-B2
Application number	US-201715655085-A
Country	US
Kind code	B2
Filing date	Jul 20, 2017
Priority date	May 28, 2014
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

The present invention provides a fungicidal composition comprising a strain of Bacillus subtilis or Bacillus amyloliquefaciens and one of several compounds in a synergistically effective amount. Also provided are methods of controlling fungal harmful organisms and/or bacterial harmful organisms in a plant, the method comprising applying an effective amount of a fungicidal composition to the plant, to a part of the plant and/or to a locus on which the plant or plant part grows.

First claim

What is claimed is:

1. A fungicidal composition comprising:
a) a lipopeptide-producing strain of Bacillus subtilis QST713 or a fermentation broth of Bacillus subtilis QST713 that is substantially free of cells; and
b) a polyalkylene compound;
of formula (I):

wherein
m is an integer between 1 and 20;
n is an integer between 1 and 5;
Z 1 is CH 2 or O;
and R 1 is a sulfate or a phosphate;
or a geometrical isomer, optical isomer, enantiomer, diastereoisomer, tautomer, or an agriculturally acceptable salt thereof;
in a synergistically effective amount.

2. The fungicidal composition of claim 1 , wherein R 1 is a sulfate.

3. The fungicidal composition of claim 2 , wherein the polyalkylene compound is an alkyl sulfate of formula (I) or an agriculturally acceptable salt thereof.

4. The fungicidal composition of claim 3 , wherein the polyalkylene compound is lauryl sulfate, myristyl sulfate, palmityl sulfate, stearyl sulfate or an agriculturally acceptable salt thereof.

5. The fungicidal composition of claim 1 , wherein the polyalkylene compound is a lauryl ether sulfate having the formula:

wherein o is an integer between 1 and 5;
or an agriculturally acceptable salt thereof.

6. The fungicidal composition of claim 1 , wherein the weight to weight ratio of the lipopeptide-producing strain of Bacillus subtilis or QST713 or the fermentation broth to the polyalkylene is about 500:1 to about 1:500.

7. The fungicidal composition of claim 1 , wherein the strain of Bacillus subtilis QST713 is part of a fermentation product.

8. A plant or plant part coated with the fungicidal composition according to claim 1 .

9. A fungicidal composition comprising:
a) a lipopeptide-producing strain of Bacillus subtilis QST713 or a fermentation broth of Bacillus subtilis QST713 that is substantially free of cells; and
b) a sulfonate or an agriculturally acceptable salt thereof;
wherein
the sulfonate is a compound of formula (IV)

wherein
R 1 is a linear or branched C 1-20 alkyl or a linear or branched C 2-20 alkene; and
M is H + , Li + , Na + , K + or (C 1-8 alkyl) 4 N + ; or
the sulfonate is a compound of formula (V)

wherein
R 1 and R 2 are independently a linear or branched C 1-20 alkyl or a linear or branched C 2-20 alkene; and
M is H + , Li + , Na + , K + or (C 1-8 alkyl) 4 N + ;
in a synergistically effective amount.

10. The fungicidal composition of claim 9 , wherein the sulfonate is the compound of formula (IV):

wherein
R 1 is a linear or branched C 1-20 alkyl or a linear or branched C 2-20 alkene; and
M is H + , Li + , Na + , K + or (C 1-8 alkyl) 4 N + .

11. The fungicidal composition of claim 10 , wherein R 1 is a linear C 8-16 alkyl.

12. The fungicidal composition of claim 11 , wherein the sulfonate is tetradecene sulfonate, hexadecene sulfonate, or a Li + , Na + , K + or (C 1-8 alkyl) 4 N + salt thereof.

13. The fungicidal composition of claim 9 , wherein the sulfonate is the compound of formula (V):

wherein
R 1 and R 2 are independently a linear or branched C 1-20 alkyl or a linear or branched C 2-20 alkene; and
M is H + , Li + , Na + , K + or (C 1-8 alkyl) 4 N + .

14. The fungicidal composition of claim 13 , wherein R 1 and R 2 are independently linear or branched C 8 alkyl.

15. The fungicidal composition of claim 14 , wherein the sulfonate is dioctyl sulfosuccinate; 1,4-bis(2-ethylhexoxy)-1,4-dioxobutane-2-sulfonate; or a Li + , Na + , K + or (C 1-8 alkyl) 4 N + salt thereof.

16. The fungicidal composition of claim 9 , wherein the weight to weight ratio of the lipopeptide-producing strain of Bacillus subtilis QST713 or the fermentation broth to the sulfonate is about 500:1 to about 1:500.

17. The fungicidal composition of claim 9 , wherein the strain of Bacillus subtilis QST713 is part of a fermentation product.

Assignees

• Bayer Cropscience Lp

Inventors

• Kijlstra Johan
• Namnath James Sirikit
• Pontzen Rolf
• Wachendorff-Neumann Ulrike
• Waterman Carrie

Classifications

• A01N41/04

  Sulfonic acids; Derivatives thereof · CPC title

• A01N25/30

  characterised by the surfactants · CPC title

• A01N63/00

  Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates (containing compounds of determined constitution A01N27/00 - A01N59/00; unicellular algae A01N65/03) · CPC title

• A01N63/02

  Human Necessities · mapped topic

• C12N15/8282 Primary

  for fungal resistance · CPC title