Method of treating microbial plant diseases

• US 20050260243A1
• Filed: 04/25/2005
• Published: 11/24/2005
• Est. Priority Date: 04/26/2004
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Lynch, Michael, Istvan, Rudyard
• Application Number:
  US11/113,506
• Publication Number:
  US 20050260243A1
• Time in Patent Office: Days
• US Class Current: 424/405
• CPC Class Codes: A01N 2300/00 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 Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 31/08 Oxygen or sulfur directly attached to an aromatic ring system
• CPC Class Codes: A01N 37/02 Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/04 polybasic
• CPC Class Codes: A01N 37/06 Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/36 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
• CPC Class Codes: A01N 37/44 containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
• CPC Class Codes: A01N 43/08 with oxygen as the ring hetero atom
• CPC Class Codes: A01N 43/16 with oxygen as the ring hetero atom
• CPC Class Codes: A01N 43/36 five-membered rings

Abstract

Microbiocidal method for treating and preventing infections in plants, said method employing antimicrobial compositions comprising an organic acid or organic acid mixture and a short-chain anionic surfactant having at least one of a large head group; a branched alkyl chain and an unsaturated alkyl chain.

Claims

1. A method of treating or preventing a microbial caused infection in a plant in need thereof comprising administering an effective amount of antimicrobial composition comprising:

a. from about 0.2% to about 70% of an organic acid; and

b. from about 0.1% to about 40% of an anionic surfactant mixture having i. a linear alkyl chain length of from about C₄ to about C₁₂ and a total head group size of at least about 4 Angstroms; and

/or ii. a branched alkyl chain length of from about C₄ to about C₁₂; and

/or iii. a branched alkyl chain length of from about C₄ to about C₁₂ and a total head group size of at least about 4 Angstroms;

wherein said composition is characterized by a pH of from about 2.0 to about 4.5.

2. The method of claim 1, wherein said anionic surfactant is selected from the group consisting of:

alkyl glyceryl sulfonate, alpha sulfo fatty acid, alkyl phosphonate, branched alkyl sulfonate and branched alkyl benzene sulfonate, secondary alkyl sulfate, mono ester of alkyl sulfosuccinic acid, alkyl isethionate, alkyl amidosulfonate, and combinations thereof.

3. The method of claim 1, further wherein said anionic surfactant is substituted with a sulfonate, sulfate or phosphonate group.

4. The method of claim 1 wherein said organic acid is selected from the group consisting of:

pyroglutamic acid, adipic acid, gluconic acid, gluconolactone acid, glutamic acid, glutaric acid, glycolic acid, tartaric acid, ascorbic acid and combinations thereof.

5. The method of claim 1, wherein the antimicrobial composition further comprises a nonionic agent.

6. The method of claim 5, wherein said nonionic agent is selected from the group consisting of:

1-(2-ethylhexyl)glycerol ether, octyl glycerol ether, 2-(2-ethylhexylxoxy) propanol, octyloxy-propanol, 1-(2-ethylhexyloxy)ethanol, octyloxy ethanol, 1,2-hexylenediol, 1,2-cyclohexanedimethanol, isopropyl glycerol ether and combinations thereof.

7. The composition of claim 5, wherein said nonionic agent is present in an amount of about 0.1% to about 10% by weight of total composition.

8. The method of claim 1 wherein the microbial infection is caused by at least one of the following:

Yeast, molds, bacteria or viruses.

9. The method of claim 8 where in the yeast is a Candida strain.

10. The method of claim 8 wherein the bacteria is either a gram negative or a gram positive

11. A method of disinfecting agricultural implements comprising treating a device with an effective amount of an antimicrobial composition comprising:

a. from about 0.2% to about 70% of an organic acid; and

b. from about 0.1% to about 40% of an anionic surfactant mixture having i. a linear alkyl chain length of from about C₄ to about C₁₂ and a total head group size of at least about 4 Angstroms; and

/or ii. a branched alkyl chain length of from about C₄ to about C₁₂; and

/or iii. a branched alkyl chain length of from about C₄ to about C₁₂ and a total head group size of at least about 4 Angstroms;

wherein said composition is characterized by a pH of from about 2.0 to about 4.5.

12. The method of claim 11 wherein the antimicrobial composition is applied as a wash, spray, soak, or a wipe.