Sterilizing compound of ethirimol and triazole

The technology of a composition, pyrimethol, is applied in the direction of fungicides, biocides, biocides, etc., which can solve the problems of high cost of imported pharmaceuticals, decreased control effect, and decreased effect, so as to reduce dosage, delay resistance, The effect of reducing pollution

Active Publication Date: 2009-10-07
SHAANXI BIAOZHENG CROP SCIENCE CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The third stage: the new compound types represented by imported kresoxim-methyl have a unique mechanism of action and many action sites. After use, obvious drug resistance has been produced, and the effect has declined. At the same time, the cost of imported drugs is too high
However, due to the use of myclobutanil for many years, the control effect of single use has dropped significantly, and at the same time, it is also facing the problem of drug resistance

Method used

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  • Sterilizing compound of ethirimol and triazole
  • Sterilizing compound of ethirimol and triazole
  • Sterilizing compound of ethirimol and triazole

Examples

Experimental program
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Effect test

example 1

[0023] Bioassay example 1: Indoor toxicity determination and ratio screening of pyrimethrimol and tebuconazole complex against wheat powdery mildew

[0024] The indoor toxicity of different ratios of pyrimethrimol and tebuconazole to wheat powdery mildew was determined by spraying method.

[0025] According to Sun Yunpei's method, the toxicity index of each drug and the co-toxicity coefficient (CTC value) of the mixture were calculated, that is, CTC ≤ 80 was antagonism, 80 < CTC < 120 was additive, and CTC ≥ 120 was synergistic.

[0026] Actual Toxicity Index (ATI) = Standard Drug EC 50 / Test agent EC 50 ×100

[0027] Theoretical toxicity index (TTI) = Toxicity index of agent A × percentage of A in the mixture + toxicity index of agent B × percentage of B in the mixture

[0028] Co-toxicity coefficient (CTC) = mixture measured toxicity index (ATI) / mixture theoretical toxicity index (TTI) × 100

[0029] The results showed that pyrimethrimol and tebuconazole had a signific...

example 2

[0033] Bioassay example 2: Indoor toxicity determination and ratio screening of pyrimethrimol and difenoconazole compound against apple powdery mildew

[0034] The indoor toxicity of different ratios of pyrimethrimol and difenoconazole to apple powdery mildew was determined by spraying method. The results showed that the compounding ratio of pyrimethrimol and difenoconazole was between 25:1-1:50, especially between 20:1-1:20, which showed obvious synergistic effect and co-toxicity The coefficient is above 125 (Table 2).

[0035]Table 2 Determination results of indoor co-toxicity coefficient of pyrithrimol and difenoconazole compound against apple powdery mildew

[0036]

example 3

[0037] Bioassay example 3: Indoor toxicity test and ratio screening of pyrimethrimol and hexaconazole compound against grape powdery mildew

[0038] The indoor toxicity of different ratios of pyrimethrimol and hexaconazole compound agents against grape powdery mildew was determined by spraying method. The results show that pyrimethrimol and hexaconazole have obvious synergistic effect between the ratio of 25:1 to 1:50, especially between 25:1 to 1:25, and the co-toxicity coefficient is more than 120 ( table 3).

[0039] Table 3 Determination results of indoor co-toxicity coefficient of pyrimethol and hexaconazole compounded against grape powdery mildew

[0040] deal with

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Abstract

The invention relates to a sterilizing compound of ethirimol and triazole, and the compound contains the ethirimol of synergic and effective amount, the triazole bactericide which is tebuconazole, difenoconazole, hexaconazole or myclobutanil, and diluent or carrier that is acceptable in pesticide, wherein the weight ratio of the ethirimol to the triazole bactericide which is tebuconazole, difenoconazole, hexaconazole or myclobutanil is 25:1 to 1:50. When being compounded with the triazole bactericide, the ethirimol has obvious synergy, and the amount of effective ingredients of the compound preparation is less than that when being used independently. The compound can be used for curing powdery mildew of fruit trees, melons, beans, solanaceous fruits, flowers, and the like.

Description

technical field [0001] The invention relates to a pesticide composition, especially a composition containing pyrimethol and triazole fungicides. Background technique [0002] During the growth and development of crops, they are vulnerable to various diseases, especially fungal diseases, which are of various types and cause serious harm. For a long time, chemical control is the main effective means of disease control. However, due to monotherapy and unscientific drug use in recent years, many pathogenic bacteria have developed resistance to the currently used pesticides. Powdery mildew is a worldwide disease that occurs widely on many important crops, causes serious damage, and is difficult to control. All the fungi of the Ascomycota subphylum Powdery mildew can cause powdery mildew, and there are many types of pathogens. The conidia of this type of fungus can germinate at a temperature of 10-30°C, and the humidity requirement is not high. Under normal circumstances, an in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01N43/54A01P3/00
Inventor 景辉赵萍宁昭玉刘晓明
Owner SHAANXI BIAOZHENG CROP SCIENCE CO LTD
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