Synergistic composition containing kresoxim-methyl

A composition, the technology of kresoxim-methyl, applied in the field of bactericidal composition, can solve the problems of high cost, easy loss, and short duration of soil-borne diseases, etc., and achieve the effect of reduced dosage, not easy to lose, and excellent poisonous effect

Inactive Publication Date: 2010-02-24
DONGGUAN RUIDEFENG BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, compositions containing kresoxystrobin active ingredients for preventing and controlling root rot of crops can be found in Chinese patents (200610149364.1; 200710136727.2; 200710136728.7), but these mixed compositions containing kresoxim-methyl for controlling root rot are extremely rare in soil. Easy to run off, short duration and high cost to prevent and control soil-borne diseases

Method used

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  • Synergistic composition containing kresoxim-methyl

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] The test object was Rhizoctonia solani. Weigh a certain amount of kresoxim-methyl technical substance and tolclofos-methyl technical substance, dissolve kresoxim-methyl and tolclofos-methyl technical substance with a certain amount of xylene, then add Tween-80 and a certain amount of sterilized water to prepare into mother liquor. On the basis of the mother liquor, according to the pre-test results, prepare 7 series of dilutions of test concentrations. According to kresoxim-methyl: tolclofos-methyl is 50:1, 40:1, 30:1, 20:1, 10:1, 1:1, 1:10, 1:20, 1:30, 1:40 , 1:50 ratio, the preparation of a series of concentration of liquid medicine.

[0024] The test method used mycelial growth rate method. The appropriate amount of xylene and Tween-80 sterilized water was used as the control (CK). Take 8ml of the drug solution and add it to a conical flask containing 72ml of hot medium (PDA medium, 45-50°C). After shaking well, quickly pour it into a 90mm diameter glass petri di...

example 2

[0038] The test object is Fusarium oxysporum. Weigh a certain amount of kresoxim-methyl technical substance and tolclofos-methyl technical substance, dissolve kresoxim-methyl and tolclofos-methyl technical substance with a certain amount of xylene, then add Tween-80 and a certain amount of sterilized water to prepare into mother liquor. On the basis of the mother liquor, according to the pre-test results, prepare 7 series of dilutions of test concentrations. According to kresoxim-methyl: tolclofos-methyl is 50:1, 40:1, 30:1, 20:1, 10:1, 1:1, 1:10, 1:20, 1:30, 1:40 , 1:50 ratio, the preparation of a series of concentration of liquid medicine.

[0039] The mycelial growth rate method was used in the test. The test and statistical methods are the same as in the biological assay example 1, and the toxicity assay results are shown in Table 2.

[0040] Table 2 Indoor toxicity test results of kresoxim-methyl tolclofos-methyl against Fusarium wilt of bitter gourd

[0041] ...

example 3

[0045] The test material is Phytophthora capsici Leonian. Weigh a certain amount of kresoxim-methyl technical substance and tolclofos-methyl technical substance, dissolve kresoxim-methyl and tolclofos-methyl technical substance with a certain amount of xylene, then add Tween-80 and a certain amount of sterilized water to prepare into mother liquor. On the basis of the mother liquor, according to the pre-test results, prepare 7 series of dilutions of test concentrations. According to kresoxim-methyl: tolclofos-methyl is 50:1, 40:1, 30:1, 20:1, 10:1, 1:1, 1:10, 1:20, 1:30, 1:40 , 1:50 ratio, the preparation of a series of concentration of liquid medicine.

[0046] The mycelial growth rate method was used in the test. The test and statistical methods are the same as in the biological assay example 1, and the results of the toxicity assay are shown in Table 3.

[0047] Table 3 Indoor toxicity test results of kresoxim-methyl tolclofos-methyl against Phytophthora capsici

[004...

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Abstract

The invention relates to a bactericidal composition comprising the effective components of kresoxim-methyl and tolclofos-methyl. The two effective components are compounded, which can expand the bactericidal spectrum, has synergistic interaction and reduces the application quantity. The bactericidal composition is suitable for preventing and treating soil-borne diseases on crops and is especiallysuitable for preventing and treating root rot.

Description

technical field [0001] The invention relates to a bactericidal composition, especially a bactericidal composition containing kresoxim-methyl. Background technique [0002] Root rot is a common disease in the production of field crops and commercial crops. The pathogenic fungi are mainly plant pathogenic fungi such as Pythium, Phytophthora, Rhizoctonia, Fusarium, and Sclerotinia. Common root rot diseases include tomato damping-off, cucumber blight, and bitter gourd wilt. The etiology of root rot is complex, often caused by two or more different types of pathogens. When the environmental conditions are suitable, the diseased plants are easily re-invaded by some saprophytic pathogens, which will accelerate root rot and cause complex symptoms. [0003] Commonly used agents for the prevention and control of root rot are chlorothalonil, mancozeb, metalaxyl, pentachloronitrobenzene, carbendazim, thiram, hymexazol, etc. However, the mechanism of action of these medicaments is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/14A01N37/50A01P3/00
Inventor 程凯张承来刘忠义桂艳男曹明章孔建
Owner DONGGUAN RUIDEFENG BIO TECH
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