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Mixed preparation of chlorothalonil and carbendazim

A compound agent, chlorothalonil technology, applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of unsatisfactory use effect, time-consuming, costly and labor-intensive, etc., to achieve increased bactericidal spectrum, obvious synergistic effect, The effect of improving adhesion

Inactive Publication Date: 2014-02-19
SUZHOU JIAHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The effect of using a single preparation of the two can no longer meet the requirements of agricultural production, especially the emergence of bacterial resistance, which requires the birth of new high-efficiency fungicides
However, the development of new agents is time-consuming, costly and labor-intensive. In order to overcome the defects of the two single agents, the combination of chlorothalonil and carbendazim has become the most economical and effective means at present.

Method used

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  • Mixed preparation of chlorothalonil and carbendazim
  • Mixed preparation of chlorothalonil and carbendazim
  • Mixed preparation of chlorothalonil and carbendazim

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: The composition and weight ratio when compound agent is wettable powder are as follows:

[0028]

[0029]

[0030] The preparation method is as follows: adding carbendazim, chlorothalonil original drug, additives, fillers, etc. into a mixer in sequence and fully mixing, starting the jet mill, pulverizing the preparation mixture, passing the inspection, and sealing the package.

[0031] The compound agent is mainly used to prevent and control diseases such as melon downy mildew and anthracnose. When used as a wettable powder, it should be diluted 600-800 times with water according to the dose of the original drug at 8-20 g / mu, and stirred well. It can be sprayed on the leaves, once every 6-8 days.

[0032] The test results show that in the early stage of cucumber downy mildew, 45% carbendazim·chlorothalonil WP mixed with water was used to dilute 600-800 times spraying treatment per mu, and the control effect was more than 80% when it was used continuo...

Embodiment 2

[0033] Embodiment 2: the component and the weight ratio when compounding agent is suspending agent are as follows:

[0034]

[0035] The preparation method is: add the auxiliary agent and water into the shearing kettle in proportion, add the carbendazim and the chlorothalonil original drug into the shearing kettle under the shearing state, and after the shearing is uniform, enter the sand mill for sanding until the The particle size of the material meets the requirements; sampling is carried out for content analysis, and thickener water is added to the slurry according to the result of the content analysis, and the result of sampling and testing can be taken after cutting evenly, and the material is packaged after passing the test.

[0036] The compound agent is mainly used to prevent and control diseases such as melon downy mildew and anthracnose. When used as a suspending agent, it should be diluted 600-800 times with water according to the dose of the original drug at 8-2...

Embodiment 3

[0038] Embodiment 3: when compound agent is water-dispersible granule, the component and weight ratio are as follows:

[0039]

[0040] The preparation method is: put the measured original drug and additives into the mixing kettle, stir evenly at room temperature, ultrafinely pulverize the material through the jet mill unit, transfer to the granulation mixer after mixing evenly, add deionized water evenly, After the material is stirred evenly, it is granulated, and when it is dried to meet the moisture requirements, it is screened after all indicators are qualified, and then packaged and put into storage.

[0041] The compound agent is mainly used to prevent and control diseases such as melon downy mildew and anthracnose. When used as a water-dispersible granule, it is diluted 600-800 times with water according to the dose of the original drug at 8-20 g / mu, and the granules are completely After disintegration, stir well and spray on the leaves, once every 6-8 days.

[0042...

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Abstract

The invention discloses a mixed preparation of chlorothalonil and carbendazim. The mixed preparation is characterized in that active components of the mixed preparation are chlorothalonil and carbendazim, the weight of the chlorothalonil and carbendazim accounts for 10 to 80% of the total weight of the mixed preparation, and a weight ratio of chlorothalonil to carbendazim is 1-10: 1-10. Processing dosage forms of the mixed preparation may be a wettable powder, a suspending agent or a water dispersible granule. According to the invention, the bactericides--chlorothalonil and carbendazim are used as the active component, an organosilicon auxiliary agent is selected and used, so adhesion of the liquid of the mixed preparation onto a plant is improved, and the characteristic of resistance to rain wash is improved; and combined usage of chlorothalonil and carbendazim substantially improves prevention and treatment efficiency on diseases like downy mildew of cucurbits and anthracnose.

Description

technical field [0001] The invention belongs to the technical field of pesticide processing, and in particular relates to a compound of chlorothalonil and carbendazim. Background technique [0002] Carbendazim is a broad-spectrum, systemic fungicide, stable to heat, unstable to acid and alkali, and has protective and therapeutic effects. The systemic conduction is mainly of the top type, and it is easy to decompose and fail in the soil. It has control effects on various crop diseases caused by fungi, and can be used for foliar spray, seed treatment and soil treatment, etc. It can be used to prevent melon powdery mildew, blight, bean anthracnose, blight, and has good effects on gray mold, white spot, fusarium wilt, blight, etc. of cruciferous vegetables. At present, the large-scale promotion of benzimidazole fungicides represented by carbendazim has caused pathogenic bacteria to produce drug resistance to varying degrees. [0003] Chlorothalonil is a low-toxicity, broad-spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/18A01P3/00A01N37/34
Inventor 亓轶群蒋沫然马敏曹永元
Owner SUZHOU JIAHUI CHEM
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