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Ternary compound fungicide containing boscalid and its application

A technology for compounding fungicides and boscalid containing boscalid, applied in the directions of fungicides, biocides, biocides, etc., can solve problems such as limitations, and achieve the effects of low cost, wide application spectrum of disease prevention, and simple use methods.

Active Publication Date: 2015-09-23
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the antibacterial spectrum of boscalid is concentrated, and the limitation of disease prevention spectrum and application spectrum also limits its greater role

Method used

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  • Ternary compound fungicide containing boscalid and its application
  • Ternary compound fungicide containing boscalid and its application
  • Ternary compound fungicide containing boscalid and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, indoor formula screening:

[0035] The determination of toxicity and synergistic coefficient is to dissolve the original drug of carbendazim, the original drug of triadimefon and boscalid in acetone according to different weight ratios, and use the mycelium growth method to determine the effect on botrytis cinerea (Table 1 ) inhibition, and then calculate the EC 50 value and synergy factor.

[0036]According to the main prevention and control objects, select the ratio of synergistic coefficient (SR) ≥ 1.5, and carry out appropriate dosage form processing.

[0037] Table 1. Screening of formulas for preventing and treating Botrytis cinerea

[0038]

[0039]

[0040] Note: The above brackets refer to the weight ratio of the two components, SR=theoretical EC 50 Value / measured EC 50 value.

Embodiment 2

[0041] Embodiment 2, indoor formula screening:

[0042] The determination of toxicity and synergistic coefficient is to dissolve the original drug of carbendazim, the original drug of triadimefon and boscalid respectively in acetone according to different weight ratios, and use the mycelia growth method to determine the effect on P. pear black spot (Table 2 ) inhibition, and then calculate the EC 50 value and synergy factor.

[0043] Table 2. Formula screening for preventing and treating pear black spot

[0044]

[0045] Note: The above brackets refer to the weight ratio of the two components, SR=theoretical EC 50 Value / measured EC 50 value.

Embodiment 3

[0046] Embodiment 3, indoor formula screening:

[0047] Toxicity and synergistic coefficients were determined by dissolving the original drug of carbendazim, the original drug of triadimefon and boscalid respectively in acetone according to different weight ratios, and using the mycelium growth method to determine the effect on the pathogen of rubella viciae (Table 3 ) inhibition, and then calculate the EC 50 value and synergy factor.

[0048] According to the main prevention and control objects, select the ratio of synergistic coefficient (SR) ≥ 1.5, and carry out appropriate dosage form processing.

[0049] Table 3. Screening of formulas for preventing and treating broad bean red spot disease

[0050]

[0051] Note: The above brackets refer to the weight ratio of the two components, SR=theoretical EC 50 Value / measured EC 50 value.

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Abstract

The invention discloses a ternary composite bactericide containing boscalid. The ternary composite bactericide containing the boscalid comprises, by weight, polyketone 5%-95% and the boscalid 5%-95%. The polyketone consists of carbendazim and triazolone by weight ratio of 1:1. The invention further provides an emulsion bactericide and a powdery / granular bactericide prepared by the ternary composite bactericide. The ternary composite bactericide can be especially used for preventing and controlling diseases of plants resistant to the carbendazim or the boscalid, such as carbendazim-resistant strawberry grey mould fruit rot, boscalid-resistant strawberry grey mould fruit rot, carbendazim-resistant tomato early blight, boscalid-resistant tomato early blight, carbendazim-resistant grape powdery mildew, boscalid-resistant grape powdery mildew, carbendazim-resistant cucumber powdery mildew and boscalid-resistant cucumber powdery mildew.

Description

technical field [0001] The invention relates to a fungicide, in particular to a ternary compound fungicide used for preventing and treating plant diseases. Background technique [0002] Benzimidazole fungicides--carbendazim is the first milestone in the history of fungicides. This type of agent mainly prevents the dimerization of β-tubulin and α-tubulin by binding to β-tubulin body, and ultimately inhibit the cell division of pathogenic bacteria. This kind of pesticide has been used in production for more than 30 years, but it still plays a very important role in the control of plant diseases. Among them, benlaide is still widely used in foreign countries, and carbendazim is the most widely used fungicide in my country. One of the varieties of fungicides. Carbendazim has the advantages of broad bactericidal spectrum, low toxicity, and low cost. It is widely used in the control of powdery mildew, gray mold, rust and other diseases in my country. The main problem at present i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/18A01P3/00A01N43/40A01N43/653
Inventor 张传清刘亚慧皇甫运红
Owner ZHEJIANG FORESTRY UNIVERSITY
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