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

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...

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.