CN115211435A - Efficient plant insect-resistant composition and preparation method thereof - Google Patents
Efficient plant insect-resistant composition and preparation method thereof Download PDFInfo
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- CN115211435A CN115211435A CN202111068071.1A CN202111068071A CN115211435A CN 115211435 A CN115211435 A CN 115211435A CN 202111068071 A CN202111068071 A CN 202111068071A CN 115211435 A CN115211435 A CN 115211435A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/34—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the field of IPC classified A01N51/00, in particular to a high-efficiency plant insect-resistant composition and a preparation method thereof. The insect-proof composition comprises the following raw materials in percentage by mass: 3-7% of first active component, 6-10% of second active component, 1-3% of abietate modifier, 1-5% of polycarboxylate, 1-5% of sulfonate, 2-5% of inorganic particles, 2-5% of antifreezing agent, 0.1-1% of preservative, 0.1-1% of defoaming agent, 0.1-0.5% of thickening agent and the balance of deionized water. The insect-proof composition prepared by the application has good insect and disease prevention drug effect, effectively improves the high and low temperature stability and the long-term storage strength of the composition, is suitable for popularization in the field of pesticides, and has wide development prospect.
Description
Technical Field
The invention relates to the field of IPC classified A01N51/00, in particular to a high-efficiency plant insect-resistant composition and a preparation method thereof.
Background
With the continuous development of society and economy, the population of the earth further shows a rising trend, so that the world still faces food problems, and the problem of crop diseases and insect pests is still one of the main problems influencing the improvement of the world food yield.
The prior art (CN 202010516575.4) provides an antiviral and insect pest composition, the raw materials mainly comprise protein active ingredients, amino-oligosaccharide active ingredients and related auxiliary agents, and the antiviral and insect pest composition is claimed to have excellent antiviral and insect pest resistance, but the phenomenon that the composition is easily inactivated and has poor stability during the storage process of the protein ingredients at high temperature, low temperature and long time is easily caused, so that the further use of the antiviral and insect pest composition is influenced.
Therefore, there is a need for a plant anti-pest composition that has excellent high and low-temperature stability and long-term storage stability, in addition to excellent anti-pest performance.
Disclosure of Invention
In order to solve the problems, the invention provides a high-efficiency plant insect-resistant composition in a first aspect, which comprises the following raw materials in percentage by mass: 3-7% of a first active component, 6-10% of a second active component, 1-3% of abietate, 1-5% of polycarboxylate, 1-5% of sulfonate, 2-5% of inorganic particles, 2-5% of antifreeze, 0.1-1% of preservative, 0.1-1% of defoamer, 0.1-0.5% of thickener and the balance of deionized water.
As a preferable scheme, the first active ingredient is at least one of lufenuron, diafenthiuron, chlorfenapyr, cyhalothrin, flucycloxuron, diflubenzuron and flufenoxuron.
As a preferred embodiment, the first active ingredient is lufenuron.
As a preferable scheme, the second active ingredient is at least one of indoxacarb, fipronil, azoxystrobin, bifenthrin and dinotefuran.
Preferably, the second active ingredient is indoxacarb.
As a preferable mode, the mass ratio of the first active ingredient to the second active ingredient is 5 to 6:7 to 9.
Preferably, the first active ingredient and the second active ingredient account for 12 to 13 percent of the composition by mass.
In a preferred embodiment, the first active ingredient has an average particle size of 50 to 300nm.
In a preferred embodiment, the first active ingredient has an average particle size of 80 to 160nm.
As a preferable scheme, the mass ratio of the polycarboxylate to the first active ingredient is 2-3: 5 to 6.
In a preferred embodiment, the rosin acid ester modified product is a rosin acid ester.
As a preferable scheme, the inorganic particles are at least one of titanium dioxide, white carbon black, magnesium aluminum silicate and zinc oxide.
Preferably, the inorganic particles are magnesium aluminum silicate and white carbon black.
As a preferable scheme, the mass ratio of the magnesium aluminum silicate to the white carbon black is 1:1.
As a preferred embodiment, the polycarboxylate is sodium polycarboxylate.
In the application, the stability of the composition at high temperature is further improved by adding the sodium polycarboxylate, and limiting the average molecular weight of the polycarboxylate and the average particle size of the lufenuron, so as to effectively improve the absorption effect of the composition on plants and the penetration effect on the plants. The applicant speculates that: when the average particle size of the lufenuron is 80-160 nm, the mass ratio of the polycarboxylate to the lufenuron is 2-3: 5-6 hours, the lufenuron particles can form independent active molecule microcolloids with polycarboxylate in the system, and the effective wrapping effect avoids the phenomenon that more tiny colloids are hydrolyzed and attached to the system, so that the occurrence of overlarge colloid active molecules is avoided, the number of microcolloids in the system is further increased, the composition system forms a stable nano dispersion system, and when high temperature is met, the large particle colloids which can effectively avoid the irregular movement of the reinforced colloids are generated.
In a preferred embodiment, the sulfonate is at least one of alkyl succinate sulfonate, fatty acid hydroxyethane sulfonate, and fatty alcohol ether sulfonate.
As a preferred embodiment, the sulfonate is alkyl succinate sulfonate.
As a preferable mode, the mass ratio of the alkyl succinate sulfonate to the second active ingredient is 2 to 3:7 to 9.
In the application, the mass ratio of the alkyl succinate sulfonate to the second active ingredient is limited, so that the plant permeability of a composition system in use is effectively improved, and the action efficiency of the composition in resisting plant diseases and insect pests is accelerated. The applicant speculates that: when a proper amount of alkyl succinate sulfonate is added, a multi-branched structure in the structure can play a more obvious role in reducing the surface tension in use, and a hydrophilic group positioned in a molecular intermediate structure can effectively promote the hydrophilic performance of indoxacarb in a water system and a spraying process.
Preferably, the average molecular weight of the polycarboxylate is 2000-15000.
In a preferred embodiment, the polycarboxylate has an average molecular weight of 4000 to 8000.
In the application, the dispersing effect is effectively improved by limiting the adding proportion of the polycarboxylate and further limiting the average molecular weight of the polycarboxylate, the curing phenomenon in a composition system is effectively avoided, and the long-term storage stability of the composition and the long-term efficacy stability of the active ingredients are improved. The applicant speculates that: the polycarboxylate with a proper molecular weight can be effectively used as an effective dispersing system solute of the wetting dispersant, the addition of a proper and longer molecular chain can further improve the spacing between active molecules, enhance the steric hindrance in a microscopic manner, reduce the molecular chain connection flocculation phenomenon caused by the addition of a long molecular chain among the components, further promote the ionization degree of other raw materials in the system, and improve the electrostatic repulsion of the system; when the average molecular weight of the polycarboxylate is low, the deflocculation cannot be effectively performed, and when the average molecular weight of the polycarboxylate is high, the existing long molecular chain is easy to cause connection flocculation.
In a preferred embodiment, the antifreeze is at least one of glycerol, ethylene glycol, diethylene glycol and sorbitol.
In a preferred embodiment, the antifreeze is ethylene glycol.
As a preferred scheme, the preservative is at least one of cason and sodium benzoate.
As a preferred embodiment, the preservative is sodium benzoate.
As a preferable scheme, the defoaming agent is at least one of a silicone defoaming agent and a polyether defoaming agent.
In a preferred embodiment, the defoamer is a polysiloxane defoamer.
As a preferable scheme, the thickening agent is at least one of xanthan gum, carbomer, hydroxymethyl cellulose and sodium alginate.
As a preferred embodiment, the thickener is xanthan gum.
In a second aspect of the present invention, there is provided a method for preparing the above highly effective plant insect-repellent composition, comprising the steps of: (1) Putting the rosin acid ester modifier, polycarboxylate, sulfonate, inorganic particles, preservative, deionized water and defoamer into a reaction kettle, stirring and mixing; (2) And (3) adding a thickening agent, an antifreezing agent, a first active ingredient and a second active ingredient under high-speed shearing, and performing ball milling under the condition of adding ball milling beads to finish grinding to obtain the product.
Has the beneficial effects that:
1. the plant insect-proof composition prepared in the application has an excellent disease and insect prevention effect, can efficiently perform insect prevention on plants, has good plant absorbability and permeability, and has good economic and social benefits.
2. According to the application of the invention, the quantity and the dispersion effect of the micro-colloids in the composition system are effectively improved by limiting the conditions such as the compounding ratio of the polycarboxylate and the first active ingredient, the appearance of large-scale colloids is avoided, and a stable nano-dispersion system is formed.
3. In the application of the invention, the molecular weight of the polycarboxylate is further limited, so that the dispersing effect is effectively improved, the curing phenomenon in a composition system is effectively avoided, and the long-term storage stability of the composition and the long-term efficacy stability of the active ingredients are improved.
Drawings
FIG. 1 is a statistical chart of the field trial raw data survey of the composition obtained in example 1 of the present application.
Detailed Description
Example 1
Example 1 in a first aspect, a highly effective plant insect control composition is provided, which comprises the following raw materials by weight percentage: 5% of lufenuron, 8% of indoxacarb, 2% of abietate, 2% of sodium polycarboxylate, 2% of alkyl succinate sulfonate, 1.5% of magnesium aluminum silicate, 1.5% of white carbon black, 4.0% of glycol, 0.3% of sodium benzoate, 0.24% of xanthan gum, 0.3% of polysiloxane and the balance of deionized water.
In this example, lufenuron having an average particle size of 120nm was purchased from lufenuron products sold by shanxi pluris pharmaceutical industry ltd and subjected to secondary grinding.
In this embodiment, the indoxacarb is an indoxacarb product sold by the chemical company of double edge in the north of lake.
In this example, the sodium polycarboxylate has an average molecular weight of 5000 and is commercially available from Oncung New carbon Material Changzhou Co.
In this example, abietate is a abietate product sold by Jiangsu engine science and technology Limited under model SC 29.
In this example, the polysiloxane is a type 495 polydimethylsiloxane product sold by chemical Limited of Jinan Xinglong.
In a second aspect, this embodiment provides a method for preparing the above high-efficiency plant insect-repellent composition, comprising the following steps: (1) Putting the abietate modified product, sodium polycarboxylate, alkyl succinate sulfonate, magnesium aluminum silicate, white carbon black, sodium benzoate, deionized water and polysiloxane into a reaction kettle, and stirring and mixing; (2) Adding xanthan gum, ethylene glycol, lufenuron and indoxacarb under high-speed shearing, carrying out ball milling under the condition that ball milling beads are added, and finishing the grinding to obtain the product.
Example 2
The embodiment of the present invention is different from embodiment 1 in that: the content of lufenuron is 6%, and the content of indoxacarb is 7%.
Comparative example 1
The embodiment of this comparative example is the same as example 1 except that: the content of the sodium polycarboxylate salt was 0.5%.
Comparative example 2
The embodiment of this comparative example is the same as example 1 except that: the content of the alkyl succinate sulfonate was 0.5%.
Comparative example 3
The embodiment of this comparative example is the same as example 1 except that: the sodium salt of a polycarboxylic acid has an average molecular weight of 1000.
Evaluation of Performance
1. Heat storage stability: all the insecticides prepared in examples and comparative examples were subjected to a heat storage stability test with reference to the GB/T19136-2003 standard, and the suspension ratio of the insecticide at the end of the test was observed, and the results are shown in Table 1.
2.: and (3) low-temperature wet screening: the insecticides of all examples and comparative examples were subjected to a low temperature wet sieve test, the insecticides of all examples were stored at a temperature of 0. + -. 2 ℃ for 14d and then taken out to return to room temperature, the samples were filtered through a 20 μm sieve net to measure the sieving rate, 5 specimens were tested for each example and comparative example, and the average of the measured values is shown in Table 1.
3. The field pesticide effect is as follows: the plant anti-insect composition prepared in example 1 was subjected to a field anti-insect efficacy test.
And (3) test crops: cabbage
The control object is: beet armyworm
Test start time: 2021, 5 months and 30 days
Test completion time: 6/2021
Investigation time: the study was conducted before and 2d and 7d after the application.
The investigation method comprises the following steps: five-point sampling is adopted, each cell is marked with 15 cabbage plants, and the number of live insects on the plants is investigated at a specified time.
The application method and the dosage are as follows: spraying method, water consumption is 750 l/ha.
The drug effect calculation method comprises the following steps:
the results of the efficacy tests are shown in Table 2.
The results of the mean control and variance analysis of the test results of the drug efficacy are shown in Table 3.
During the test, the weather conditions of the test on the day of application are recorded in Table 4.
During the test, the gas phase conditions are reported in Table 5 on a daily basis.
TABLE 1
| Examples | Percent heat storage suspension | Low-temperature wet screening% |
| Example 1 | 99.3 | 99.9 |
| Example 2 | 99.1 | 99.6 |
| Comparative example 1 | 93.1 | 94.4 |
| Comparative example 2 | 94.2 | 95.2 |
| Comparative example 3 | 94.7 | 94.9 |
TABLE 2
TABLE 3
TABLE 4
TABLE 5
Through the examples 1-2, the comparative examples 1-3 and the tables 1-5, the prepared high-efficiency plant insect-preventing composition and the preparation thereof have good insect-preventing and disease-preventing effects, effectively improve the high-low temperature stability and the long-term storage strength of the composition, are suitable for popularization in the field of pesticides and have wide development prospects. Wherein, the example 1 obtains the best performance index under the factors of the best preparation raw material proportion, the best preparation process and the like.
Claims (10)
1. A highly effective plant protection composition characterized by: the raw materials comprise the following components in percentage by mass: 3-7% of first active component, 6-10% of second active component, 1-3% of abietate modifier, 1-5% of polycarboxylate, 1-5% of sulfonate, 2-5% of inorganic particles, 2-5% of antifreezing agent, 0.1-1% of preservative, 0.1-1% of defoaming agent, 0.1-0.5% of thickening agent and the balance of deionized water.
2. The highly effective plant protection against insects composition of claim 1, wherein: the first active ingredient is at least one of lufenuron, diafenthiuron, chlorfenapyr, cyhalothrin, flucycloxuron, diflubenzuron and flufenoxuron.
3. The highly effective plant pest control composition according to any one of claims 1 to 2, wherein: the second active ingredient is at least one of indoxacarb, fipronil, azoxystrobin, bifenthrin and dinotefuran.
4. The highly potent plant protection against insects composition as claimed in any one of claims 1 to 3, wherein: the inorganic particles are at least one of titanium dioxide, white carbon black, magnesium aluminum silicate and zinc oxide.
5. The highly potent plant protection against insects composition as claimed in any one of claims 1 to 4, wherein: the polycarboxylate is sodium polycarboxylate.
6. The highly effective plant pest control composition according to any one of claims 1 to 5, wherein: the average molecular weight of the polycarboxylate is 30000-60000.
7. The highly potent plant protection against insects composition as claimed in any one of claims 1 to 6, wherein: the mass ratio of the polycarboxylate to the first active ingredient is 2-3: 5 to 6.
8. The highly effective plant pest control composition according to any one of claims 1 to 7, wherein: the antifreezing agent is at least one of glycerol, ethylene glycol, diethylene glycol and sorbitol.
9. The highly potent plant protection against insects composition as claimed in any one of claims 1 to 8, wherein: the preservative is at least one of cason and sodium benzoate.
10. A method for preparing a highly effective plant insect repellent composition according to any one of claims 1 to 9, wherein: the steps at least comprise the following steps: (1) Putting the abietate modified substance, polycarboxylate, sulfonate, inorganic particles, preservative, deionized water and defoamer into a reaction kettle, stirring and mixing; (2) And adding a thickening agent, an antifreezing agent, a first active ingredient and a second active ingredient under high-speed shearing, carrying out ball milling under the condition of adding ball milling beads, and finishing the grinding to obtain the high-performance composite material.
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