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Bactericide composition for preventing and treating soybean root rot disease

A fungicide composition and the technology of the composition, applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of poor control effect, drug resistance, control failure, and reduced control effect, so as to delay the drug resistance of pathogens The effect of emergence and development, delaying resistance, improving yield and quality

Inactive Publication Date: 2015-04-01
PLANT PROTECTION & QUALITY & SAFETY OF AGRI PRODS INST ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Both tetrafluconazole and mefenaxyl are low-toxic fungicides, which are highly efficient, low-toxic, and environmentally friendly fungicides, and are not irritating to the skin. However, many studies have shown that using mefenaxyl alone to prevent and treat diseases , can cause pathogenic bacteria to develop drug resistance in a short period of time, resulting in reduced control effect, or even failure of control
If the two agents are used alone to control soybean root rot, there is a risk of poor control effect or resistance

Method used

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  • Bactericide composition for preventing and treating soybean root rot disease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 (10% tetrafluconazole · mefenaxyl seed coating agent)

[0027] Raw material formula: by mass percentage

[0028] Active ingredient Tetrafluconazole 5%

[0029] Active ingredient Naxyl 5%

[0030] NNO 3%

[0031] BY140 2%

[0032] OP-10 2%

[0033] Xanthan Gum 0.1%

[0034] Propylene Glycol 1%

[0035] Phosphate ester defoamer 0.1%

[0036] Film former 3%

[0037] water balance.

[0038] The preparation method is as follows:

[0039] According to the formula, weigh each component in proportion, put it into a ball mill and mill it for 30 minutes, filter, pump it into the dispersion tank for 3 minutes at high speed and then grind it fully with a sand mill to control the particle diameter of the solid component within 2 microns, and the grinding is completed Finally, stir evenly and add film-forming agent to obtain the seed coating product.

Embodiment 2

[0040] Example 2 (40% Tefluconazole · Metalaxyl Suspension Concentrate)

[0041] Raw material formula: by mass percentage

[0042] Active ingredient Tetrafluconazole 20%

[0043] Active ingredient Naxyl 20%

[0044] Sodium lignosulfonate 2%

[0045] MOA-3 2%

[0046] TP-10 2%

[0047] Xanthan Gum 0.1%

[0048] Magnesium Aluminum Silicate 1%

[0049] Octanol 0.1%

[0050] water balance.

[0051]The preparation method is as follows:

[0052] According to the formula, weigh each component in proportion, put it into a ball mill and mill it for 30 minutes, filter, pump it into the dispersion tank for 3 minutes at high speed and then grind it fully with a sand mill to control the particle diameter of the solid component within 2 microns, and the grinding is completed Finally, stir evenly to obtain the suspension concentrate product.

Embodiment 3

[0053] Example 3 (40% tetrafluconazole · metalaxyl concentrate)

[0054] Raw material formula: by mass percentage

[0055] Active ingredient Tetrafluconazole 20%

[0056] Active ingredient Naxyl 20%

[0057] DMF 5%

[0058] Anhydrous Calcium Salt 5%

[0059] TW-10 10%

[0060] Acetone balance.

[0061] Preparation method: fully dissolve the active component tetraflumezol in DMF to make liquid A; fully dissolve the active component metalaxyl-fine in acetone to make liquid B; under constant stirring state, make liquid A Mix into liquid B, stir well, add anhydrous calcium salt and TW-10, and then adjust the content with solvent acetone.

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Abstract

The invention discloses a bactericide composition containing tetraconazole and metalaxyl-M, wherein the bactericide composition comprises the following active components of tetraconazole and metalaxyl-M at the ratio of (1 to 20)-(20 to 1); and the mass percentage of the active components in the composition is 1%-80%. The bactericide composition can be prepared into a seed coating, and can also be processed into missible oil, a suspending agent, a water dispersible granule, wettable powder and an emulsion in water. The bactericide composition disclosed by the invention has the high bactericidal activity; meanwhile, the production and the development of the drug resistance of pathogens can be delayed; the use amount for prevention and treatment in practical production is reduced; and the bactericide composition is economic, efficient, safe and environmentally-friendly, has relatively high prevention and treatment effects on a plurality of kinds of crop diseases caused by fusarium and phytophthora, and especially has significant prevention and treatment effects on the soybean root rot disease.

Description

technical field [0001] The invention relates to the field of agricultural fungicides, in particular to a fungicidal composition containing tetrafluconazole and metalaxyl for preventing and treating soybean root rot. Background technique [0002] Soybean root rot is one of the most important diseases in soybean production. It is a typical soil-borne disease. It has a wide distribution, a variety of pathogens, and serious damage. It is a worldwide soybean disease that is difficult to control. In my country, soybean root rot is mainly distributed in the northeast spring soybean region and the Huanghuai soybean region. Among the pathogens of soybean root rot, Fusarium ( Foxysporum ) and Phytophthora rhizopus ( Phytophthora megasperma ) caused by soybean root rot has the most severe impact on soybeans. [0003] Phytophthora soybean root rot is a quarantine disease and a devastating disease of soybean, which can occur in any growth stage of soybean. Fusarium root rot is a com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01P3/00A01N37/46
Inventor 任学祥叶正和陈聪苏贤岩
Owner PLANT PROTECTION & QUALITY & SAFETY OF AGRI PRODS INST ANHUI ACAD OF AGRI SCI
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