Microbial pesticidal composition

Patent metadata

Field	Value
Publication number	US-9326522-B2
Application number	US-201113884456-A
Country	US
Kind code	B2
Filing date	Nov 8, 2011
Priority date	Nov 10, 2010
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

[Problem]
A microbial pesticidal composition containing viable spores of a bacterium belonging to the genus Bacillus and a chemical pesticide, in which the spores can be preserved stably in a living state for a long period of time, and a method for preserving the spores stably in a living state for a long period of time, are provided.
[Dissolution Means]
Viable spores of Bacillus subtilis and/or Bacillus amyloliquefaciens are blended with at least one member selected from a metal oxide, a metal hydroxide, a metal oxide silicic acid salt, and a metal hydroxide silicic acid salt.

First claim

The invention claimed is:

1. A microbial pesticidal composition, comprising
an inner core, which is in the form of a micro granule or granule comprising viable spores of Bacillus subtilis, Bacillus amyloliquefaciens , or both; and
a surface of the inner core covered by at least one metal-containing compound selected from the group consisting of a metal oxide, a metal hydroxide, a metal oxide silicic acid salt, and a metal hydroxide silicic acid salt, wherein the metal is copper, and
wherein the microbial pesticidal composition has a water activity at 20° C. of less than 0.5.

2. The microbial pesticidal composition according to claim 1 , wherein:
the inner core is in the form of a micro granule having a mean particle diameter of from 0.05 to 5 mm; and
a volume median diameter of the at least one metal-containing compound is from 0.01 to 250 μm.

3. The microbial pesticidal composition according to claim 2 , wherein a ratio of the mean particle diameter to the volume median diameter ((mean particle diameter of the micro granule)/(volume median diameter of the metal oxide or metal hydroxide)) is from 5 to 750.

4. The microbial pesticidal composition according to claim 1 , further comprising a surfactant.

5. The microbial pesticidal composition according to claim 4 , wherein the surfactant is blended in the inner core, and the surface of the inner core is also covered by the surfactant together with the at least one metal-containing compound.

6. The microbial pesticidal composition according to claim 4 , wherein the surfactant is blended only in the inner core.

7. The microbial pesticidal composition according to claim 4 , wherein the surfactant is covered on only the surface of the inner core together with the at least one metal-containing compound.

8. The microbial pesticidal composition according to claim 4 , wherein the surfactant is an anionic surfactant.

9. The microbial pesticidal composition according to claim 8 , wherein the surfactant is at least one selected from the group consisting of a lignin sulfonic acid salt, an alkylbenzene sulfonic acid salt, a naphthalene sulfonic acid salt, and a dialkyl sulfosuccinate salt.

10. The microbial pesticidal composition according to claim 1 , comprising copper hydroxide.

Assignees

• Misumi Yuji
• Kumiai Chemical Industry Co

Inventors

• Misumi Yuji

Classifications

• C12N1/20

  Bacteria; Culture media therefor · CPC title

• C12N1/04

  Preserving or maintaining viable microorganisms (immobilised microorganisms C12N11/00) · 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

• A01N25/14

  wettable · CPC title

• A01N63/02

  Human Necessities · mapped topic