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Nano material copolymerization mineral substance, plant extract insecticidal bactericide and preparation method thereof

A technology of plant extracts, insecticides and fungicides, applied in the field of pollution-free environmental protection physical biological pesticides, can solve the problems of short residual effect period, worsening resistance problems, easy decomposition of active ingredients, etc., and achieves less spraying times and no decrease in efficacy. , good adsorption effect

Pending Publication Date: 2020-08-25
BEIJING FAIRVIEW NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, these pesticides generally have a single performance. Nanomaterials have a bactericidal function, but the insecticidal function is not strong. Rice planthopper, rice borer, greenhouse whitefly, black-tailed leafhopper and other pests have poor control effects; biological pesticides have significant insecticidal effects, but their bactericidal and antibacterial properties are weak, and they are almost ineffective against bacteria such as maggots, rhizomes, and root rot. no effect
[0005] At present, nano-pesticides mostly use the technology of nano-sized pesticide particle size of preparations, or the technology of compounding with nano-materials; It is a new type of nanoparticle drug delivery system, and its particle size is generally defined as 1-100nm. Nanoparticles that have been studied include polymer nanocapsules and nanospheres, pharmacosomes, and lipid nanoparticles. Spheres, nanoemulsions and polymer capsules, nanoscale powders, suspensions, and microcapsules; these types of pesticides still have relatively single functions, are difficult to control individually, have poor synergistic effects, and precipitate and deteriorate during long-term storage, which cannot fundamentally solve the problem of pesticides. Broad-spectrum, stability, and target insensitivity confer insecticide resistance in pests
[0006] Second, biopesticides generally have disadvantages such as slow drug effect, poor control effect, poor stability, and high price. Plant resources are abundant, local materials are used, easy to use, easy to degrade, light pollution, and safe for crops; Pesticides have the advantages of less environmental pollution, less resistance to pests, strong selectivity, low toxicity to humans, livestock and natural enemies, and relatively low development and use costs.
[0007] Disadvantages of botanical insecticides: Most natural product compounds have complex structures, which are difficult to synthesize or the synthesis cost is too high; the active ingredients are easy to decompose, and the preparation components are complicated and difficult to standardize; It is believed that the pesticides used have no effect; the number of sprays is too high and the residual period is short, which is not easy for farmers to accept; due to the regional distribution of plants, there are many limiting factors in the selection of processing sites and the collection of plants is seasonal Wait
Especially for leeks, scallions and other maggots, root nematodes, anthracnose, root rot and other intractable diseases cannot be solved
[0008] Third, physical pesticides and insecticides rely on physical principles, such as physical shape to puncture and inhibit insects. These insecticides have poor bactericidal properties and single functions
A single strategy has the potential to backfire and exacerbate resistance problems, creating problems such as toxic residues and secondary pest outbreaks
Insecticide resistance is an evolutionary response to the stress of pesticides. It can only be delayed but cannot be controlled. It cannot blindly increase the use of pesticides or continuously change the toxicity of pesticides.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Insecticides and fungicides of nano-materials copolymerized minerals and plant extracts, including rare earth and kaolin, titanium dioxide-copper oxide composite photocatalytic materials and plant extracts matrine and crotonine, the titanium dioxide-copper oxide composite photocatalytic material The rare earth and kaolin are jointly immobilized on the rare earth and kaolin together with plant extracts matrine and crotonine.

[0091] Example 1 The insecticide and fungicide of nanomaterial copolymerized minerals and plant extracts is obtained by the following method:

[0092] 1. Rare earth and kaolin pretreatment

[0093] Take 40 grams of rare earth with a fineness of 8000 mesh and mix with 10 grams of kaolin with a fineness of 8000 mesh, disperse in 1000 mL of deionized water, stir and mix well, and then add 20 grams of phosphoric acid. With the temperature of the water bath kept at 100°C, the mixture was fully stirred and reacted in the reactor for 2 hours. Then the m...

Embodiment 2

[0109] Insecticides and fungicides of nanomaterials copolymerized minerals and plant extracts, including attapulgite and rare earth, nano-titanium dioxide-nanometer zinc oxide composite photocatalytic materials and plant extracts osthole and pirodrine, the nano-titanium dioxide-nano The zinc oxide composite photocatalytic material and plant extracts osthole and pirodrine are immobilized on the attapulgite and rare earth together.

[0110] Example 2 The insecticide and fungicide of nanomaterial copolymerized minerals and plant extracts is obtained by the following method:

[0111] 1. Attapulgite and rare earth pretreatment

[0112]Mix 30 grams of attapulgite with a fineness of 8,000 mesh and 10 grams of rare earth with a fineness of 8,000 mesh, disperse in 1,000 mL of deionized water, stir and mix well, add 10 grams of concentrated sulfuric acid, and keep the temperature at 100°C, and the mixed solution is fully stirred and reacted in the reactor 2h. Then the material is filt...

Embodiment 3

[0127] Insecticides and fungicides of nano-materials copolymerized minerals and plant extracts, including diatomite, bentonite and rare earth, nano-titanium dioxide-nano-alumina composite photocatalytic materials and plant extracts toosendanin and neem bark extract, the nano The titanium dioxide-nanometer zinc oxide composite photocatalyst material and the plant extracts osthole and piridrine are jointly immobilized on the diatomite, bentonite and rare earth.

[0128] Example 3 The insecticide and fungicide of nanomaterials copolymerized minerals and plant extracts is obtained by the following method:

[0129] 1. Diatomite, bentonite and rare earth pretreatment

[0130] 32 grams of diatomite with a fineness of 8,000 mesh, 8 grams of rare earth with a fineness of 8,000 mesh, and 5 grams of bentonite with a fineness of 8,000 mesh, mixed and dispersed in 1,000 mL of deionized water, stirred evenly, added 12 grams of concentrated hydrochloric acid, and kept at 100 ° C. The mixtur...

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Abstract

The invention relates to a nano material copolymerization mineral substance, a plant extract insecticidal bactericide and a preparation method thereof. The bactericide comprises mineral soil, a composite nano photocatalytic material and a plant extract; the composite nano photocatalytic material and the plant extract are jointly immobilized on the mineral soil. According to the plant extract insecticidal bactericide o the invention, the composite nano photocatalytic material and the plant extract are jointly immobilized on the mineral soil through a specific method; and the realization of thestandardized production of the insecticidal bactericide can be realized; just a small dosage of the insecticidal bactericide needs to be used; the insecticidal bactericide can exert its effects fast;the insecticidal bactericide just needs to be sprayed a few times; the insecticidal bactericide is stable and is not influenced by territorial environment; the efficiency of the insecticidal bactericide is not reduced at night; the insecticidal bactericide has a cost advantage; the insecticidal bactericide is non-toxic and environmentally friendly; and the insecticidal bactericide is a water-basedor aqueous dispersion and can be prepared into powder or aqueous dispersion.

Description

technical field [0001] The invention relates to an insecticide and fungicide, in particular to a nano material copolymerized mineral and plant extract insecticide and fungicide, which has spectral insecticidal and bactericidal effects, and belongs to the field of pollution-free and environmentally friendly physical biological pesticides. Background technique [0002] In 2005, my country surpassed the United States to become the world's largest pesticide producer. At present, most of the domestic pesticide manufacturers in my country are imitation products with expired patents of multinational companies, lacking innovative products with independent intellectual property rights, and the number of domestically created varieties is less than 10%. There are not many structural innovations and matrix innovations, and most of them are group transformations of existing products. Mainly include kysstrobin, fluroxystrobin, flurazole activated ester, flumorph, pyridoxazole, enoxastrobi...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01N25/08A01N59/16A01N59/20A01N25/22A01N43/90A01N43/16A01N43/40A01N47/12A01N65/26A01N59/14A01N59/06A01P3/00A01P1/00A01P7/02A01P7/04A01P17/00A01P15/00
CPCA01N25/08A01N25/22A01N43/16A01N43/40A01N43/90A01N47/12A01N59/06A01N59/14A01N59/16A01N59/20A01N65/00A01N65/26Y02A50/30
Inventor 苏斌苏文雯苏文锦
Owner BEIJING FAIRVIEW NEW TECH CO LTD
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