Application method for bactericide controlling vegetable bacterial diseases

A vegetable disease and bacterial technology, applied in the field of phytochemical protection, can solve the problems of no reports, reduce vegetable bacterial diseases, short residual time of degradation products, etc., and achieve the effect of low cost and broad market prospects.

Inactive Publication Date: 2013-10-30
INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yet for the use method of this bactericide on vegetable bacterial disease, prior art does not report
[0005] Aiming at the lack of control agents for vegetable bacterial diseases in the current market, the present invention provides a broad-spectrum agent for preventing and controlling vegetable bacterial diseases and its application method. The entire plant is sprayed and applied at an appropriate time, which can effectively reduce vegetable bacterial diseases. The occurrence and development of diseases, the control effect exceeds 85%, which is obviously better than commonly used bactericides, and the degradation products have a short residual time in the environment, and are non-toxic to the environment and humans and animals. It is a good environment-friendly agent

Method used

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  • Application method for bactericide controlling vegetable bacterial diseases
  • Application method for bactericide controlling vegetable bacterial diseases
  • Application method for bactericide controlling vegetable bacterial diseases

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]According to the results of the antibacterial activity of different concentrations of bronopol on pathogenic bacteria in the plate test, the agent has obvious inhibitory effect on bacteria, and the concentration of bronopol at 500 μg / ml or 800 μg / ml cannot completely Inhibit the growth of all strains in the test, but when the concentration of bronopol reached 1000 μg / ml, all the strains in the test were completely inhibited, which shows that bronopol has obvious inhibitory effect on vegetable pathogenic bacteria at a concentration of 1000 μg / ml , while the control agents 3% Zhongshengmycin WP and 77% Copper Hydroxide WP could not achieve complete inhibitory effect at the recommended dosage.

[0032] Table 1 The inhibitory effect of different concentrations of bronopol on pathogenic bacteria

[0033]

[0034]

[0035]

Embodiment 2

[0037] According to the result judgment (table 2) in the in vivo test of different concentrations of bronopol, its control effect, when the concentration of bronopol exceeded 1000 μ g / ml, the control effect of various diseases in the test was more than 85%, and compared with 1500 μ g / ml There was no significant difference in the control effect under the concentration, indicating that at the concentration of 1000 μg / ml, bronopol had a broad-spectrum bactericidal effect on vegetable bacterial diseases, and the control effect was significantly higher than that of the control agents 3% Zhongshengmycin WP and 77 % copper hydroxide wettable powder.

[0038] Table 2 Investigation of results of live pot experiments on bacterial diseases under different concentrations of bronopol

[0039]

[0040]

[0041]

Embodiment 3

[0043] In the field drug efficacy test, the dosage of bronopol was 30-45g / mu, and the dosage of the reference drug 77% copper hydroxide WP was 30g / mu according to the recommended dosage. The whole plant was sprayed at the early stage of the disease. The test strains included: Pseudomonas Eggplant bacterial wilt caused by Pseudomonas solanacearum (Smith) Smith in the genus Pseudomonas and by Acidovorax avenae subsp. citrulli in the genus Acidovorax Bacterial fruit spot of watermelon caused by Xanthomonas xanthomonas Bacterial round spot of cucumber caused by X. cucurbitae (Bryan) Dowson, Erwinia spp. Tomato soft rot caused by Erwinia carotovara subsp. carotovara (Jones) Bergey et al. in Erwinia, and by Clavibacter in Michigan Tomato canker caused by Clavibacter michiganense subsp. michiganensis (Smith) Davis et al. In the field test of five diseases of eggplant bacterial wilt, watermelon bacterial fruit spot, cucumber bacterial round spot, tomato soft rot and tomato canker, wh...

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Abstract

The invention discloses an application method for an agent used to control vegetable bacterial diseases, and belongs to the field of chemical protection of plants. The agent is characterized in that the active ingredient is 2-Br-2-nitro-1, 3-propylene glycol, and by the way that the agent with an effective concentration of 1000 micrograms / ml is sprayed over whole plants, vegetable bacterial diseases can be controlled effectively. The agent has obvious effects of prevention and treatment on vegetable bacterial diseases caused by Pseudomonas Acidovorax, Xanthomonas, Erwinia, Clavibacter, and provides new technical supports for controlling the occurrence and development of vegetable bacterial diseases during production.

Description

technical field [0001] The invention belongs to the field of phytochemical protection, in particular to the prevention and treatment of vegetable bacterial diseases. Background technique [0002] Vegetable bacterial disease is one of the three major diseases of vegetables. So far, there are more than 500 kinds of diseases caused by bacteria, and there are more than 70 kinds in my country, including bacterial wilt, soft rot, potato ring rot and rice leaf blight etc. are worldwide important diseases (Wang Jinsheng, 2000; Liu Xuemin, 2009). Due to the increase of cultivars and the diversification of cultivation systems, the types and degrees of bacterial diseases have been on the rise in recent years, causing huge economic losses. Serious diseases such as bacterial wilt of solanaceous vegetables and tomato canker in our country cause the incidence rate of Solanaceae plants to be as high as 60% to 100% in high temperature and rainy seasons every year, and the losses are heavy (L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N33/20A01P1/00A01G7/06A01G13/00
Inventor 李宝聚范晓溪石延霞谢学文王惟萍
Owner INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI
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