Sterilization composition containing metrafenone and pyraclostrobin

A technology of pyraclostrobin and metrafenone, which is applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of large ecological environment hazards, low crop safety, and large dosage, and prolong the service life , expanding the spectrum of sterilization and reducing the cost of medication

Inactive Publication Date: 2016-07-27
GUANGDONG ZHONGXUN AGRI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved: In order to overcome the shortcomings of the prior art, such as large dosage, high cost, great harm to the ecological environment, and low safety to crops, the present invention provides a high-efficiency, safe, low-toxic and long-lasting, Fungicidal composition containing metrafenone and pyraclostrobin beneficial for comprehensive control of wheat powdery mildew

Method used

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  • Sterilization composition containing metrafenone and pyraclostrobin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Indoor activity assay.

[0021] Inoculation test of wheat powdery mildew in potted plants:

[0022] The test method was carried out with reference to Wu Wenjun's "Introduction to Experimental Techniques of Plant Chemical Protection" (1993). 95% of metrafenone and 95.4% of pyraclostrobin were converted into 1.0 μg / mL mother liquor with acetone and Tween-80 respectively, and the quality of pyraclostrobin and metraclostrobin was prepared by using the mother liquor. The ratios were 1:10—10:1, and the gradients were 2 μg / mL, 4 μg / mL, 8 μg / mL, and 16 μg / mL, respectively. The wheat seedlings inoculated with powdery mildew were sprayed. The specific data of the test results are shown in Table 1.

[0023] Table 1. Indoor antibacterial test data

[0024]

[0025] Calculate the toxicity index of each agent and the co-toxicity coefficient (CTC value) of the mixture according to Sun Yunpei's method. When CTC ≤ 80, it is antagonistic, 80﹤CTC﹤120 is additive, and CTC ...

Embodiment 2

[0027] Example 2: 20% Metrafenone·pyraclostrobin EC.

[0028] The following substances are all in weight ratio: 15% metrafenone, 1% pyraclostrobin, 4% Nongru 500# (calcium dodecylbenzenesulfonate), 3% Span-60# (sorbitan monohard Fatty acid ester), 3% Nongru 2201#, 2% triphenyl phosphite, and xylene to 100%. After mixing the above raw materials, they are fully dissolved and mixed to obtain 20% metrafenone pyraclostrobin emulsifiable concentrate.

Embodiment 3

[0029] Example 3: 24% metrafenone-pyraclostrobin suspension concentrate.

[0030] The following substances are all in weight ratio: 18% metrafenone, 6% pyraclostrobin, 3% Nongru 600, 3% Nongru 2201, 3% lignosulfonate, 0.2% xanthan gum, 6% ethyl alcohol Glycol, 0.5% silicone defoamer, add deionized water to make up to 100%. Add the above formulations in proportion to the grinding kettle in turn for grinding, put them into a homomixer and mix evenly to prepare 24% metrafenone-pyraclostrobin suspension concentrate.

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Abstract

The invention discloses a sterilization composition containing metrafenone and pyraclostrobin. The sterilization composition comprises active ingredients including metrafenone and pyraclostrobin and common auxiliary ingredients, wherein the weight part ratio of metrafenone to pyraclostrobin in the composition is (10: 1) to (1: 10); and the weight percent of the sum of the weight of metrafenone and pyraclostrobin in the composition is 5%-70%. The sterilization composition disclosed by the invention is applicable to prevention and treatment of wheat powdery mildew, and the prevention and treatment effect has a synergistic effect which is more obvious than that of a single dosage; the utilization dosage of pesticides is reduced, the number of times of utilizing the pesticides is reduced, the pesticide utilization cost is reduced, and the adverse influence on an ecological environment by the pesticides is alleviated; and the sterilization composition is safe to crops and has important meanings on comprehensive management of disease resistance.

Description

technical field [0001] The pesticide composition involved in the present invention uses metrafenone and pyraclostrobin as active ingredients and is used for preventing and controlling plant diseases in agriculture, especially for preventing and treating wheat powdery mildew. Background technique [0002] During the growth and development of crops, they are susceptible to various diseases, especially fungal diseases, which are of many types and cause serious damage. For a long time, chemical control has been the main effective means of disease control. However, in recent years, due to monotherapy and unscientific drug use, many pathogenic bacteria have developed resistance to the currently used pesticides. [0003] Wheat powdery mildew is a worldwide disease, which is distributed in all major wheat-producing countries. It is common in Shandong coast, Sichuan, Guizhou, and Yunnan, and the damage is also serious. In recent years, the disease has also become more and more serio...

Claims

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Application Information

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IPC IPC(8): A01N47/24A01N35/04A01P3/00
CPCA01N47/24A01N35/04A01N2300/00
Inventor 朱刚陈佛祥张志伟王礼文吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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