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A kind of bactericidal preparation for preventing and treating gray mold of tomato

A tomato botrytis and preparation technology, applied in the field of pesticide formulation research, can solve the problems of vegetable leaf withering, economic loss of vegetable farmers, falling flowers and fruit, etc.

Active Publication Date: 2021-03-19
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low temperature and high humidity in winter and spring in vegetable greenhouses, this disease can cause vegetable leaves to wither, flowers and fruits to fall, which has a great impact on the yield and quality of vegetables in protected areas, and causes large economic losses to vegetable farmers.

Method used

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  • A kind of bactericidal preparation for preventing and treating gray mold of tomato
  • A kind of bactericidal preparation for preventing and treating gray mold of tomato
  • A kind of bactericidal preparation for preventing and treating gray mold of tomato

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、12

[0028] Example 1, 12.0% 2,4-diacetylphloroglucinol · iprodione microcapsules: the mass concentration of 2,4-diacetylphloroglucinol in the microcapsules is 7.0%, the concentration of iprodione The mass concentration is 5.0%.

[0029] Preparation method: Accurately weigh 7.7 g of active ingredients 2,4-diacetylphloroglucinol and 5.5 g of iprodione to be loaded into a flask, add 50 mL of acetone and ethanol mixed solvent (the mixture of acetone and ethanol The volume ratio is 1:1), and the active ingredients 2,4-diacetylphloroglucinol and iprodione are dissolved under magnetic stirring, and then the 97g sulfonyl chitosan nano-carrier prepared above is added, and the Add 40mL triple distilled water drop by drop at a high speed, continue to stir for 4h to fully volatilize the solvent, add 8mL of antifreeze ethylene glycol, and then transfer it to a petri dish, remove air bubbles and non-volatile organic solvents under reduced pressure and vacuum, and then transfer to -80 ℃ refrige...

Embodiment 2、10

[0030] Example 2, 10.0% 2,4-diacetylphloroglucinol · iprodione microcapsules: the mass concentration of 2,4-diacetylphloroglucinol in the microcapsules is 7.0%, the concentration of iprodione The mass concentration is 3.0%.

[0031] Preparation method: Accurately weigh 7.7 g of active ingredients 2,4-diacetylphloroglucinol and 3.3 g of iprodione to be loaded into a flask, add 40 mL of acetone and ethanol mixed solvent (the mixture of acetone and ethanol The volume ratio is 1:1), and the active ingredients 2,4-diacetylphloroglucinol and iprodione are dissolved under magnetic stirring, and then the 100g sulfonyl chitosan nanocarrier prepared above is added, and the Add 40mL triple distilled water drop by drop at a high speed, continue to stir for 4h to fully volatilize the solvent, add 8mL of antifreeze ethylene glycol, and then transfer it to a petri dish, remove air bubbles and non-volatile organic solvents under reduced pressure and vacuum, and then transfer to -80 ℃ refrige...

Embodiment 3、8

[0032] Example 3, 8.0% 2,4-diacetylphloroglucinol · iprodione microcapsules: the mass concentration of 2,4-diacetylphloroglucinol in the microcapsules is 7.0%, the concentration of iprodione The mass concentration is 1.0%.

[0033] Preparation method: Accurately weigh the effective composition of 2,4-diacetylphloroglucinol 7.7g and iprodione 1.1g to be loaded into a flask, add 40mL of acetone and ethanol mixed solvent (the mixture of acetone and ethanol The volume ratio is 1:1), and the active ingredients 2,4-diacetylphloroglucinol and iprodione are dissolved under magnetic stirring, and then the 102g sulfonyl chitosan nanocarrier prepared above is added to the Add 40mL triple distilled water drop by drop at a high speed, continue to stir for 4h to fully volatilize the solvent, add 8mL of antifreeze ethylene glycol, and then transfer it to a petri dish, remove air bubbles and non-volatile organic solvents under reduced pressure and vacuum, and then transfer to -80 ℃ refrigera...

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Abstract

The invention relates to a bactericidal preparation for preventing and treating tomato gray mold, which comprises active ingredients, sulfonylated chitosan capsule wall materials and auxiliary agents, and the active ingredients of the bactericidal preparation include 2,4-diacetylphloroglucinol . Iprodione, wherein, the mass percentage of 2,4-diacetylphloroglucinol in the total mass of the bactericidal preparation is 0.1-14%, and the mass percentage of iprodione in the total mass of the bactericidal preparation is 0.1- 14%, and the rest are sulfonylated chitosan capsule wall materials and additives. Through the present invention, the bactericidal preparation has a high degree of environmental compatibility, which helps to improve its targeting and intelligence, avoids the rapid degradation of active ingredients, prolongs the duration of efficacy, reduces the amount of application, and improves the control effect. The development of pesticides and the construction of food safety projects are of great significance.

Description

technical field [0001] The invention relates to a bactericidal preparation for preventing and treating gray mold of tomato, belonging to the research field of pesticide preparation. Background technique [0002] At present, in the production process of fruits and vegetables in greenhouses, the diseases caused by pathogenic fungi are particularly serious, and the excessive and frequent use of traditional chemical pesticides has caused problems such as excessive pesticide residues in fruits, vegetables and grains, and deterioration of the soil microenvironment. Therefore, the research and development of microbial agents or biological pesticides that can replace chemical pesticides has huge market potential and application prospects. The use of beneficial microorganisms for biological control is an important way to control diseases and reduce chemical pollution. Among them, the biocontrol bacteria of the genus Pseudomonas and Bacillus have been studied more deeply. Pseudomona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/38A01N37/02A01N25/28A01P3/00
CPCA01N25/28A01N37/02A01N47/38
Inventor 陈小军沈殿晶张清霞范添乐张铭瑞王智超杨文杨益众任莉张迎
Owner YANGZHOU UNIV
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