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Composition comprising a biological control agent and a fungicide

A technology of biocontrol agents, fungicides, applied to mites, nematodes and/or active metabolites of phytopathogens, reducing overall damage to plants and plant parts, exhibiting resistance to insects in the field, able to solve problems such as forecasting

Active Publication Date: 2015-04-08
BAYER CROPSCIENCE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Another problem arising from the use of synthetic insecticides or fungicides is that repeated and single applications of insecticides or fungicides often lead to selection of resistant microorganisms
However, due to the synergistic nature, it is not possible to predict the effect of other biocontrol agents in combination with other fungicides based on this specific example

Method used

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  • Composition comprising a biological control agent and a fungicide
  • Composition comprising a biological control agent and a fungicide
  • Composition comprising a biological control agent and a fungicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0348] The good fungicidal activity of the active compound combinations according to the invention can be seen from the following examples. Although the individual active compounds exhibit weak fungicidal activity, the combinations have an activity which exceeds the simple summation of activity.

[0349] A synergistic effect of the fungicides is always present when the fungicidal activity of the active compound combination exceeds the sum of the activities of the active compounds when applied individually. The expected activity of a given combination of two active compounds can be calculated (according to Colby's formula) as follows (cf. S.R. Colby, "Calculation of the synergistic and antagonistic responses of herbicide combinations", Weeds 1967, 15, pp. 20-22):

[0350] if

[0351] X is the drug effect when active compound A is applied at an application rate of m ppm (or g / ha),

[0352] Y is the drug effect when active compound B is applied at an application rate of m ppm (...

Embodiment A

[0362] Venturia test (apple) / preventive

[0363] Dissolve QST30002 (B19), active compound (1 part by weight) or its combination in acetone / dimethylacetamide (24.5 / 24.5 parts by weight) and alkylaryl polyglycol ether (1 part by weight) with water Dilute to desired concentration.

[0364] The application rate of QST30002 refers to the amount of dried Bacillus subtilis AQ30002 (also known as QST300202) (NRRL accession number B-50421).

[0365] To test for preventive activity, young plants are sprayed with the preparation of active compound at the stated application rate. After the spray coating has dried on, the plants are inoculated with an aqueous spore suspension of the pathogenic fungus Venturia inaequalis and are then kept for one day in an incubation chamber at approximately 20° C. and a relative atmospheric humidity of 100%.

[0366] The plants are then placed in a greenhouse at approximately 21° C. and a relative atmospheric humidity of approximately 90%.

[0367] Th...

Embodiment B

[0375] Powdery mildew (Sphaerotheca) test (cucumber) / preventive

[0376] Dissolve QST30002 (B19), active compound (1 part by weight) or its combination in acetone / dimethylacetamide (24.5 / 24.5 parts by weight) and alkylaryl polyglycol ether (1 part by weight) with water Dilute to desired concentration.

[0377] The application rate of QST30002 refers to the amount of dried Bacillus subtilis AQ30002 (also known as QST300202) (NRRL accession number B-50421).

[0378] To test for preventive activity, young plants are sprayed with the preparation of active compound at the stated application rate. After the spray coating has dried on, the plants are inoculated with an aqueous spore suspension of powdery mildew fungus. The plants are then placed in a greenhouse at approximately 23° C. and a relative atmospheric humidity of approximately 70%.

[0379] The test was evaluated 7 days after inoculation. 0% means an effect corresponding to the untreated control, while an effect of 10...

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Abstract

The present invention relates to a composition comprising at least one biological control agent selected from the group consisting of Bacillus chitinosporus AQ746 (NRRL Accession No, B-21618), Bacillus mycoides AQ726 (NRRL Accession No, B-21664), Bacillus pumilus (NRRL Accession No, B-30087), Bacillus pumilus AQ717 (NRRL Accession No, B-21662), Bacillus sp, AQ175 (ATCC Accession No. 55608), Bacillus sp, AQ177 (ATCC Accession No, 55609), Bacillus sp. AQ178 (ATCC Accession No, 53522), Bacillus subtilis AQ743 (NRRL Accession No, B-21665), Bacillus subtilis AQ713 (NRRL Accession No, B- 21661), Bacillus subtilis AQ153 (ATCC Accession No, 55614), Bacillus thuringiensis BD#32 (NRRL Accession No. B-21530), Bacillus thuringiensis AQ52 (NRRL Accession No, B- 21619), Muscodor albus 620 (NRRL Accession No, 30547), Muscodor roseus A3-5 (NRRL Accession No. 30548), Rhodococcus globerulus AQ719 (NRRL Accession No. B-21663), Streptomyces galbus (NRRL Accession No. 30232), Streptomyces sp. (NRRL Accession No. B-30145), Bacillus thuringiensis subspec. kurstaki BMP 123, Bacillus subtilis AQ30002 (NRRL Accession No. B-50421), and Bacillus subtilis AQ 30004 (NRRL Accession No. B-50455) and / or a mutant of these strains having all the identifying characteristics of the respective strain, and / or a metabolite produced by the respective strain that exhibits activity against insects, mites, nematodes and / or phytopathogens and at least one fungicide (I) in a synergistically effective amount, Furthermore, the present invention relates to the use of this composition as well as a method for reducing overall damage of plants and plant parts.

Description

Technical field [0001] The present invention relates to a composition comprising a synergistically effective amount of at least one biological control agent selected from the group consisting of specific microorganisms and / or these strains having all the identifying characteristics of the respective strain and at least one fungicide (I) mutants, and / or metabolites produced by each strain that exhibit activity against insects, mites, nematodes, and / or plant pathogens. Furthermore, the invention relates to the use of this composition and to a method for reducing overall damage to plants and plant parts. Background technique [0002] Synthetic insecticides or fungicides are generally non-specific and therefore may act on organisms other than the target organism, including other naturally occurring beneficial organisms. Due to their chemical nature, they can also be toxic and non-biodegradable. Consumers around the world are becoming increasingly aware of the potential environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/00A01N43/80A01N43/78A01N57/12A01N59/26A01P3/00A01N63/22
CPCA01N63/00A01N63/22A01N59/26A01N2300/00A01N57/12A01N43/82A01N57/10A01N37/52A01N43/80A01N35/04A01N43/78A01N47/16A01N63/23A01N63/28A01N37/18Y10S435/832Y10S435/886
Inventor U·沃肯道夫-诺依曼W·安德施K·斯藤泽尔B·斯普林格
Owner BAYER CROPSCIENCE AG
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