Targeted sustained-release nano-pesticide preparation for aphid control, preparation method and application thereof

A nano-pesticide and aphid technology, applied in botany equipment and methods, applications, insecticides, etc., can solve the problem of lack of active targeting of aphids, reduce the harm of non-target organisms, obtain materials easily, and reduce pollution Effect

Inactive Publication Date: 2019-04-12
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are related patents and literature reports on chemical pesticide sustained-release preparations for controlling aphids (patent: CN102823601A Pymetrozine sustained-release granule and its preparation and application, CN105519562A Preparation method of imidacloprid microcapsules; literature: Zhu Yingfei. Methyl salicyla...

Method used

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  • Targeted sustained-release nano-pesticide preparation for aphid control, preparation method and application thereof
  • Targeted sustained-release nano-pesticide preparation for aphid control, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The targeted slow-release nano-pesticide preparation for controlling aphids described in this embodiment, wherein: the following substrates are used as raw materials in parts by weight:

[0027] 5 parts of tripolyglycerol monostearate, 20 parts of P(HB-HO), 10 parts of pymetrozine, 1 part of PVA, 10 parts of aphid sex pheromone;

[0028] The P(HB-HO) is a copolymer of hydroxybutyric acid and hydroxyoctanoic acid; the PVA is polyvinyl alcohol.

[0029] The specific preparation method of the above-mentioned targeted slow-release nano-pesticide preparation for controlling aphids comprises the following steps:

[0030] (1) Dissolve the triglycerol monostearate, P(HB-HO) and pymetrozine in the above parts by weight in methylene chloride successively, and the triglycerol monostearate, P The concentrations of (HB-HO) and pymetrozine in dichloromethane were 0.5%, 2% and 1%, respectively;

[0031] (2) Get the PVA of above-mentioned parts by weight, be dissolved into the PVA aq...

Embodiment 2

[0037] The targeted slow-release nano-pesticide preparation for controlling aphids described in this embodiment, wherein: the following substrates are used as raw materials in parts by weight:

[0038] 45 parts of triglycerol monostearate, 100 parts of P(HB-HO), 50 parts of imidacloprid, 10 parts of PVA, 7 parts of aphid sex pheromone;

[0039] The P(HB-HO) is a copolymer of hydroxybutyric acid and hydroxyoctanoic acid; the PVA is polyvinyl alcohol.

[0040] The specific preparation method of the above-mentioned targeted slow-release nano-pesticide preparation for controlling aphids comprises the following steps:

[0041] (1) Dissolve the triglycerol monostearate, P(HB-HO) and imidacloprid in the above parts by weight in methylene chloride successively, and the triglycerol monostearate, P(HB-HO) -HO) and the concentration of imidacloprid in dichloromethane are respectively 4.5%, 10% and 5%;

[0042](2) Get the PVA of above-mentioned parts by weight, be dissolved into the PVA...

Embodiment 3

[0048] The targeted slow-release nano-pesticide preparation for controlling aphids described in this embodiment, wherein: the following substrates are used as raw materials in parts by weight:

[0049] 30 parts of triglycerol monostearate, 30 parts of P(HB-HO), 15 parts of acetamiprid, 20 parts of PVA, 5 parts of aphid sex pheromone;

[0050] The P(HB-HO) is a copolymer of hydroxybutyric acid and hydroxyoctanoic acid; the PVA is polyvinyl alcohol.

[0051] The specific preparation method of the above-mentioned targeted slow-release nano-pesticide preparation for controlling aphids comprises the following steps:

[0052] (1) The tripolyglycerol monostearate, P(HB-HO) and acetamiprid in the above parts by weight are successively dissolved in dichloromethane, and the tripolyglycerol monostearate, P The concentrations of (HB-HO) and acetamiprid in dichloromethane were 3%, 3% and 1.5%, respectively;

[0053] (2) Get the PVA of above-mentioned parts by weight, be dissolved into th...

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Abstract

Belonging to the technical field of pesticide preparations, the invention provides a targeted sustained-release nano-pesticide preparation for aphid control, a preparation method and application thereof. The preparation method includes: taking tripolyglycerol monostearate, P(HB-HO), an aphid control pesticide, PVA and aphid sex pheromone as the raw materials; dissolving tripolyglycerol monostearate, P(HB-HO) and the aphid control pesticide in an organic phase in order; dissolving PVA into a PVA aqueous solution of certain concentration, mixing the PVA aqueous solution with the organic phase, and conducting high pressure homogenization to form an emulsion, performing full stirring to volatilize the organic phase, subjecting the emulsion to high speed centrifugation, discarding the supernatant, and collecting the precipitate; dissolving the aphid sex pheromone in anhydrous ethanol, performing mixing with the collected precipitate, conducting impregnation adsorption, and carrying out highspeed centrifugation to collect the precipitate, and performing freeze drying, thus obtaining the targeted sustained-release nano-pesticide preparation. The preparation obtained by the method provided by the invention has the characteristics of uniform particle size distribution, good dispersity and good sustained release performance, has active targeted luring and poisoning effects on aphids, can improve the pesticide efficacy, also can reduce the pollution of pesticides to the environment and the harm to non-target organisms, and reaches the purposes of active luring and killing of target pests.

Description

technical field [0001] The invention belongs to the technical field of pesticide preparations, and in particular relates to a targeted slow-release nano-pesticide preparation for preventing and controlling aphids, a preparation method and application thereof. Background technique [0002] Aphids, belonging to the family Aphidoidea of ​​the order Homoptera, are among the fastest reproducing and most destructive insects in the world. Aphids are very harmful, and there are about 250 species that are extremely destructive to agriculture, forestry and horticulture. In my country, there are about 1,100 species of aphids, which mainly harm food and economic crops by eating and spreading viruses, and can cause varying degrees of damage to the yield and quality of crops. For a long time, people have devoted themselves to the control of aphids by spraying pesticides and physical measures, among which the use of chemical pesticides is one of the most important means. The use of pesti...

Claims

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Application Information

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IPC IPC(8): A01N25/10A01N37/02A01N43/707A01N51/00A01N47/40A01N43/90A01N43/12A01N65/22A01P7/04A01P19/00
CPCA01N25/10A01N37/02A01N43/12A01N43/707A01N43/90A01N47/40A01N51/00A01N65/00A01N65/22Y02A50/30
Inventor 张婵董岳峰贾如竹高淑琴
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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