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Pyrimethanil-containing bactericide composition

A fungicide composition, pyrimethanil technology, applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of application restrictions, high production costs, etc., to reduce usage and water consumption, reduce labor costs, delay The effect of drug resistance

Active Publication Date: 2013-06-05
ZHEJIANG DAYANG BIOTECH GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The new fungal biopesticide trichoderma has good application prospects in the control of plant diseases, especially for the control of fungal diseases of vegetables and fruits in protected areas, but its large-scale application is limited to a certain extent due to its high production cost, especially The application in the production process of low-end agricultural products is greatly restricted

Method used

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  • Pyrimethanil-containing bactericide composition
  • Pyrimethanil-containing bactericide composition
  • Pyrimethanil-containing bactericide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1 The joint toxicity test of pyrimethanil and trichoderma

[0060] 1. Drugs to be tested:

[0061] Trichomycin: can be provided by Zhejiang Dahua Biotechnology Co., Ltd.;

[0062] Pyrimethanil: It can be provided by Bayer Crop Science of Bayer (China) Co., Ltd., Germany.

[0063] 2. Test strains:

[0064] The pyrimethanil-resistant strain, Botrytis cinerea Pers (Botrytis cinerea Pers), was provided by Professor Ma Zhonghua, Institute of Biotechnology, Zhejiang University.

[0065] 3. Medium:

[0066] Potato dextrose agar (PDA) 330126197404302310

[0067] 4. Method

[0068]The virulence coefficients of trichoderma, pyrimethanil and their compound agents against resistant Botrytis cinerea were tested by mycelial growth rate method. The mass ratios of compound medicaments are trichomycin and pyrimethanil are 1:99, 5:95, 10:90, 20:80, 30:70, 50:50, 70:30, 80:20, 90: 10. Dilute each test agent with sterile water into a series of gradient concentrations, and th...

Embodiment 2

[0082] Example 2 In vitro test of drug efficacy of compound preparation

[0083] 1 Test agent:

[0084] Composite medicament: the mass ratio of trichomycin and pyrimethanil is 10:90 (combined toxicity test results show in embodiment 1 that the mass ratio of trichomycin and pyrimethanil 10:90 is compounded and the co-toxicity coefficient is 171.7 , significant synergistic effect, comprehensive agent cost and synergistic ratio, trichomycin and pyrimethanil 10:90 is the best ratio, so the following drug efficacy tests are based on the mass ratio of trichomycin and pyrimethanil 10:90 for compounding).

[0085] 2 Test crops:

[0086] The tomato variety is the cooperative 903 red tomato provided by the Shanghai Long March Fine Variety Experimental Field of the Shanghai Tomato Research Institute, which is commercially available and has a batch number of 20091106. Tomato seeds were soaked and sterilized with potassium permanganate, germinated in an incubator at 28°C for 48 hours, a...

Embodiment 3

[0100] Example 3 Potted drug efficacy test of compound preparation

[0101] 1 Test agent:

[0102] Compound drug: the mass ratio of trichomycin and pyrimethanil is 10:90.

[0103] 2 Test crops:

[0104] The tomato variety is the cooperative 903 red tomato provided by the Shanghai Long March Fine Variety Experimental Field of the Shanghai Tomato Research Institute, which is commercially available and has a batch number of 20091106. Tomato seeds were soaked and sterilized with potassium permanganate, germinated in an incubator at 28°C for 48 hours, and then seedlings were raised in seedling trays, and transplanted into pots with a diameter of 10 cm after the three leaves were transplanted, one plant per pot, and the five-leaf stage was used for test.

[0105] 3 methods:

[0106] The experiment consisted of 4 treatments

[0107] Treatment 1: Trichoderma 10% aqueous emulsion, diluted 1000 times;

[0108] Treatment 2: Pyrimethanil 40% suspension, diluted 1000 times;

[0109]...

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Abstract

The invention discloses a pyrimethanil-containing bactericide composition. The active ingredients of the bactericide composition consist of trichodermin and pyrimethanil, wherein the mass ratio of the trichodermin to the pyrimethanil is (1-50):(99-50). Furthermore, the bactericide composition consists of the following ingredients by weight percent: 10-40% of the active ingredients of the bactericide composition, 10-20% of a solvent, 4-8% of an emulsifying agent, 1-3% of a dispersing agent, 1-3% of an antifreezing agent, 0.5% of a thickening agent, 0.5-1.5% of a synergistic agent, 1% of a stabilizing agent and the balance of water. The bactericide composition has an obvious synergism effect, defects generated when the two preparations are separately used can be solved, the medicine applying time and medicine applying amount can be reduced, phytotoxicity which is caused to separately apply the trichodermin to plants is eliminated, and the bactericide composition in particular has a strong effect in pathogenic bacteria with medicine resistance.

Description

technical field [0001] The invention belongs to the field of plant protection, and in particular relates to a fungicide composition with improved performance, a preparation method and an application thereof, in particular to a fungicide composition comprising trichotomycin and pyrimethanil, a preparation method and Uses of the composition. Background technique [0002] Botrytis cinerea is one of the main diseases of vegetables in protected areas. The pathogen is a fungus belonging to the subphylum Botrytis, mainly including three species: Botrytis cinerer Pers. ex Fr., Botrytis squamosa Walker) and Botrytis alliiMunn (Botrytis alliiMunn), Botrytis cinerea has the widest host range, and can harm the leaves, flowers, fruits, etc. The low temperature and high humidity environment is conducive to the occurrence of the disease. When the environmental conditions are suitable, a large number of fruits can be rotted, which seriously affects the yield and quality of the products, an...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N43/54A01P3/00
Inventor 王国平章初龙汪贤玉关卫军周转忠鲍志娟兰金林鲁高明徐旭辉刘思鹏
Owner ZHEJIANG DAYANG BIOTECH GROUP
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