CN114651833B - Insecticidal composition containing dimefon and application thereof - Google Patents
Insecticidal composition containing dimefon and application thereof Download PDFInfo
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- CN114651833B CN114651833B CN202210228383.2A CN202210228383A CN114651833B CN 114651833 B CN114651833 B CN 114651833B CN 202210228383 A CN202210228383 A CN 202210228383A CN 114651833 B CN114651833 B CN 114651833B
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- 239000000203 mixture Substances 0.000 title claims abstract description 38
- 230000000749 insecticidal effect Effects 0.000 title claims abstract description 31
- QSOHVSNIQHGFJU-UHFFFAOYSA-L thiosultap disodium Chemical compound [Na+].[Na+].[O-]S(=O)(=O)SCC(N(C)C)CSS([O-])(=O)=O QSOHVSNIQHGFJU-UHFFFAOYSA-L 0.000 claims abstract description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 16
- 229960000892 attapulgite Drugs 0.000 claims abstract description 15
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 15
- 239000002562 thickening agent Substances 0.000 claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000005888 Clothianidin Substances 0.000 claims abstract description 10
- 239000005941 Thiamethoxam Substances 0.000 claims abstract description 10
- NWWZPOKUUAIXIW-FLIBITNWSA-N thiamethoxam Chemical compound [O-][N+](=O)\N=C/1N(C)COCN\1CC1=CN=C(Cl)S1 NWWZPOKUUAIXIW-FLIBITNWSA-N 0.000 claims abstract description 10
- PGOOBECODWQEAB-UHFFFAOYSA-N (E)-clothianidin Chemical compound [O-][N+](=O)\N=C(/NC)NCC1=CN=C(Cl)S1 PGOOBECODWQEAB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000005906 Imidacloprid Substances 0.000 claims abstract description 8
- -1 acrylic ester Chemical class 0.000 claims abstract description 8
- YKBZOVFACRVRJN-UHFFFAOYSA-N dinotefuran Chemical compound [O-][N+](=O)\N=C(/NC)NCC1CCOC1 YKBZOVFACRVRJN-UHFFFAOYSA-N 0.000 claims abstract description 8
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 claims abstract description 8
- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940056881 imidacloprid Drugs 0.000 claims abstract description 8
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 claims abstract description 8
- 229940073769 methyl oleate Drugs 0.000 claims abstract description 8
- 229910002012 Aerosil® Inorganic materials 0.000 claims abstract description 4
- 241001646826 Isodon rubescens Species 0.000 claims description 16
- 238000000227 grinding Methods 0.000 claims description 13
- 241000256251 Spodoptera frugiperda Species 0.000 claims description 12
- 241000607479 Yersinia pestis Species 0.000 claims description 12
- 229910021485 fumed silica Inorganic materials 0.000 claims description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 9
- 241000238631 Hexapoda Species 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 229920005646 polycarboxylate Polymers 0.000 claims description 7
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 3
- 230000000361 pesticidal effect Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000004480 active ingredient Substances 0.000 abstract description 5
- 241001183967 Isodon Species 0.000 abstract description 2
- 230000009471 action Effects 0.000 abstract description 2
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 150000003900 succinic acid esters Chemical class 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 239000000575 pesticide Substances 0.000 description 7
- 238000009472 formulation Methods 0.000 description 5
- 206010059866 Drug resistance Diseases 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000004071 biological effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PGOOBECODWQEAB-FIBGUPNXSA-N 2-[(2-chloro-1,3-thiazol-5-yl)methyl]-1-nitro-3-(trideuteriomethyl)guanidine Chemical group [2H]C([2H])([2H])NC(N[N+]([O-])=O)=NCC1=CN=C(Cl)S1 PGOOBECODWQEAB-FIBGUPNXSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VEMKTZHHVJILDY-UXHICEINSA-N bioresmethrin Chemical compound CC1(C)[C@H](C=C(C)C)[C@H]1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UXHICEINSA-N 0.000 description 1
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical group [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- CXEGAUYXQAKHKJ-NSBHKLITSA-N emamectin B1a Chemical compound C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](NC)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 CXEGAUYXQAKHKJ-NSBHKLITSA-N 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000003151 ovacidal effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
-
- 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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
-
- 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
- A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
-
- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/22—Lamiaceae or Labiatae [Mint family], e.g. thyme, rosemary, skullcap, selfheal, lavender, perilla, pennyroyal, peppermint or spearmint
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a insecticidal composition containing dimehypo, which is prepared from dimehypo, one or more of imidacloprid, thiamethoxam, clothianidin and dinotefuran and the active ingredients with different action mechanisms of rabdosia extract by adopting polycarboxylic acid ester, alcohol ether, succinic acid ester as an emulsifying agent, acrylic ester as a dispersing agent, attapulgite and aerosil as a thickening agent and methyl oleate as a dispersing medium as auxiliary agents.
Description
Technical Field
The invention relates to the technical field of pesticides, in particular to a pesticidal composition containing dimefon and application thereof.
Background
Spodoptera frugiperda, also known as fall armyworm, is a omnivorous pest native to tropical and subtropical areas of america, widely distributed on continental america, and is an important agricultural pest.
Spodoptera frugiperda has the following characteristics: the suitable area is wide; the migration speed is high, the distance is long; the reproductive capacity is strong; the range of host plants is wide; the catching and killing difficulty is high. Pyrethroids and emamectin benzoate drugs are widely used for the control of spodoptera frugiperda. However, the long-term use of the spodoptera frugiperda has the effect of gradually enhancing the drug resistance of spodoptera frugiperda and increasing the difficulty of prevention and control.
Therefore, the search for new pharmaceutical compositions with low amounts that delay the development of drug resistance is a highly desirable problem for those skilled in the art.
In terms of process preparation, the environment-friendly traditional formulation such as the missible oil has relatively high biological activity and relatively high control effect on plant diseases and insect pests, but other formulations have to be selected along with the export of national policies and large-scale restrictions of markets, but the drug efficacy can reach the effect of the traditional missible oil formulation due to the restrictions of the water-based formulation, the usage amount must be increased to achieve corresponding control effect, excessive usage leads to certain resistance of target pests, the corresponding plant diseases and insect pests are difficult to control, and the appropriate high-efficiency environment-friendly formulation is selected to effectively promote the biological activity of active ingredients, enhance the permeation and conduction of the drugs, achieve the effects of energy conservation, emission reduction and environmental pressure relief.
Disclosure of Invention
Aiming at the situation, the invention aims to provide the insecticidal composition containing the dimehypo, which is prepared by compounding and combining the dimehypo with one or more of imidacloprid, thiamethoxam, clothianidin and dinotefuran and the rabdosia rubescens extract as effective components and grinding with OE08 (polycarboxylate, alcohol ether, succinate), acrylic ester, attapulgite and aerosil and methyl oleate until D90 is smaller than 3 mu m, wherein the prepared insecticidal composition has the advantages of good storage stability, excellent water-in dispersibility, good permeability, safe use, high control effect on spodoptera frugiperda and long acting time.
The technical scheme for solving the problems is as follows:
the insecticidal composition containing the dimehypo comprises the following components in percentage by weight: 5-20% of effective components, 10-15% of emulsifying agent, 0.3-0.6% of dispersing agent, 3-4% of thickening agent and 100% of dispersing medium, wherein the effective components comprise a first component, a second component and a third component, the first component is dimehypo, the second component is one or more of imidacloprid, thiamethoxam, clothianidin and dinotefuran, the third component is rabdosia rubescens extract, the emulsifying agent is polycarboxylate, alcohol ether and succinic acid ester, the dispersing agent is acrylic ester, the thickening agent is attapulgite and fumed silica, and the dispersing medium is methyl oleate.
Further, the weight ratio of the first component to the second component to the third component is 1-10:1-20:3-7.
Further, the rabdosia rubescens extract is prepared by the following method: soaking Rabdosia Rubescens (Hemsl.) Hara in ethanol solution, reflux extracting for 3 times to obtain extractive solution, concentrating, extracting with ethyl acetate, concentrating, and drying to obtain Rabdosia Rubescens (Hemsl.) Hara extract.
Further, the weight ratio of the attapulgite to the fumed silica is 2:1.
Further, the insecticidal composition is prepared by the following steps: mixing the effective components, the emulsifying agent, the dispersing agent, the thickening agent and the dispersing medium, shearing and uniformly mixing, adding silicon nitride grinding beads, grinding until the D90 is smaller than 3 mu m, and removing the silicon nitride grinding beads after grinding to obtain the insecticidal composition containing the dimefon.
Further, the addition amount of the silicon nitride grinding beads is 2.3 times of the total mass of the insecticidal composition, the rotating speed is 2500r/min, and the sanding time is 135min.
Further, the prepared insecticidal composition containing the dimehypo is used for controlling insect pests.
Further, the pest is spodoptera frugiperda.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the insecticidal composition containing the dimehypo is composed of the dimehypo, one or more of imidacloprid, thiamethoxam, clothianidin and dinotefuran and the effective components with different action mechanisms of the rabdosia extract, has obvious synergistic effect after being mixed, improves the control effect, and is beneficial to overcoming and delaying the generation of drug resistance of pests.
2. The insecticidal composition containing the dimefon reduces the dosage, thereby reducing the cost and the pollution to the environment, having good safety and meeting the safety requirement of pesticide preparations.
3. The insecticidal composition containing the dimefon has excellent control effect on spodoptera frugiperda and long control time.
4. According to the characteristics of the effective components of the insecticidal composition, the specific proportions of polycarboxylate, alcohol ether and succinate are adopted as an emulsifier, acrylic ester is adopted as a dispersing agent, attapulgite and aerosil are adopted as a thickening agent, methyl oleate is adopted as a dispersing medium and is adopted as an auxiliary agent, so that the prepared insecticidal composition containing the dimehypo has excellent performance, high suspension rate, good storage stability and strong stability at high temperature and low temperature.
Detailed Description
Example 1
Preparing a rabdosia rubescens extract: soaking 1kg of Rabdosia Rubescens (Hemsl.) Hara in 10 times of ethanol solution according to gradient extraction method (95%, 75%, 50%, 25%, 5%) for 2 hr, reflux extracting for 3 times, each time for 2 hr, mixing the extractive solutions, filtering, concentrating, evaporating to dryness, extracting with ethyl acetate for 3 times, concentrating under reduced pressure, and drying to obtain Rabdosia Rubescens (Hemsl.) Hara extract.
Example 2
The insecticidal composition containing the dimehypo comprises the following components: 5% of effective components, 10% of emulsifying agent, 0.3% of acrylic ester, 3% of thickening agent and 100% of methyl oleate;
the effective components comprise a first component, a second component and a third component, wherein the first component is dimehypo, the second component is imidacloprid and thiamethoxam, the third component is rabdosia rubescens extract, the weight ratio of the first component to the second component to the third component is 1:1:3, and the mass ratio of the imidacloprid to the thiamethoxam is 2:1; the emulsifier is composed of polycarboxylate, alcohol ether and succinate in a weight ratio of 1:1:2; the thickener is attapulgite and fumed silica, and the weight ratio of the attapulgite to the fumed silica is 2:1.
Example 3
The insecticidal composition containing the dimehypo comprises the following components: 10% of effective components, 12% of emulsifying agent, 0.5% of acrylic ester, 3.5% of thickening agent and 100% of methyl oleate;
the effective component comprises a first component, a second component and a third component, wherein the first component is dimehypo, the second component is thiamethoxam and clothianidin, the third component is rabdosia rubescens extract, and the weight ratio of the first component to the second component to the third component is 5:10:4; the emulsifier is composed of polycarboxylate, alcohol ether and succinate in a weight ratio of 1:1:2, and the mass ratio of thiamethoxam to clothianidin is 1:1; the thickener is attapulgite and fumed silica, and the weight ratio of the attapulgite to the fumed silica is 2:1.
Example 4
The insecticidal composition containing the dimehypo comprises the following components: 20% of effective components, 15% of emulsifying agent, 0.6% of acrylic ester, 4% of thickening agent and 100% of methyl oleate;
the effective components comprise a first component, a second component and a third component, wherein the first component is dimehypo, the second component is clothianidin and dinotefuran, the third component is rabdosia rubescens extract, the weight ratio of the first component to the second component to the third component is 10:20:7, and the mass ratio of the clothianidin to the dinotefuran is 5:3; the emulsifier is composed of polycarboxylate, alcohol ether and succinate in a weight ratio of 1:1:2; the thickener is attapulgite and fumed silica, and the weight ratio of the attapulgite to the fumed silica is 2:1.
Example 5
The same as in example 3, except that the attapulgite was replaced with organobentonite.
Example 6
The same as in example 3, except that the emulsifier component was replaced with calcium dodecylbenzenesulfonate.
Example 7
The same as in example 3, except that the fumed silica was replaced with attapulgite.
Example 8
The same as in example 3, except that the third component in the active ingredient was replaced with the second component.
Example 9
The same as in example 3, except that the second component in the active ingredient was replaced with a third component.
Example 10
The same as in example 3, except that the first component in the active ingredient was replaced with the second component.
Example 11
The insecticidal compositions containing the dimehypo described in examples 2 to 10 were prepared by the following steps: mixing the effective components, the emulsifying agent, the dispersing agent, the thickening agent and the dispersing medium, shearing and uniformly mixing at the rotating speed of 2500r/min, adding silicon nitride grinding beads, and sanding for 135min, and removing the silicon nitride grinding beads after sanding is finished to obtain the insecticidal composition containing the dimefon, wherein the adding amount of the silicon nitride grinding beads is 2.3 times of the total mass of the insecticidal composition.
Test example 1
The performance index of the insecticidal composition containing the dimehypo prepared in examples 2 to 7 was measured, and the results are shown in Table 1:
as can be seen from Table 1, the insecticidal composition containing the dimefon prepared by the invention has the advantages of excellent physical properties, high suspension rate, good storage stability and strong stability at high temperature and low temperature.
Test example 2
Test object: spodoptera frugiperda of corn field
The test method comprises the following steps: test setting 2 groups of treatment with the pesticide, with clear water as control group, and with the insecticidal compositions containing the dimehypo prepared in examples 2-4 and examples 8-10 as test group, each treatment was repeated 3 times, and each cell area was 25m 2 The protection rows are arranged, the cells are randomly arranged and combined, the pesticide is applied in a stem and leaf spraying mode, the pesticide is uniformly sprayed, the pest population density of each cell is investigated by a five-point sampling method respectively 1d before the pesticide is applied and 10d after the pesticide is applied, and each point is investigated by 2m 2 The number of insect mouths and the pest situation at each point are recorded, the rate of reduction of the insect mouths and the prevention and treatment effect are respectively calculated, and the results are shown in Table 2:
as can be seen from table 2, the insecticidal compositions containing the diminution of the present invention prepared in examples 2 to 4 have excellent insecticidal and ovicidal effects on spodoptera frugiperda, and the diminution of the present invention shows remarkable synergistic effects between the diminution of the present invention and the extract of rabdosia rubescens, imidacloprid, thiamethoxam, clothianidin and dinotefuran.
While the invention has been described in connection with certain embodiments, it is not intended that the invention be limited thereto; for those skilled in the art to which the present invention pertains and the related art, on the premise of based on the technical scheme of the present invention, the expansion, the operation method and the data replacement should all fall within the protection scope of the present invention.
Claims (4)
1. The insecticidal composition containing the dimehypo is characterized by comprising the following components in percentage by weight: 5-20% of effective components, 10-15% of emulsifying agent, 0.3-0.6% of dispersing agent, 3-4% of thickening agent and 100% of dispersing medium, wherein the effective components comprise a first component, a second component and a third component, the first component is dimehypo, the second component is one or more of imidacloprid, thiamethoxam, clothianidin and dinotefuran, the third component is a rabdosia rubescens extract, the weight ratio of the first component to the second component to the third component is (1-10): 1-20), the emulsifying agent is polycarboxylate, alcohol ether and succinate, the dispersing agent is acrylic ester, the thickening agent is attapulgite and aerosil, and the dispersing medium is methyl oleate; the prepared insecticidal composition containing the dimefon is used for controlling insect pests, wherein the insect pests are spodoptera frugiperda;
wherein the rabdosia rubescens extract is prepared by the following method: soaking Rabdosia Rubescens (Hemsl.) Hara in ethanol solution, reflux extracting for 3 times to obtain extractive solution, concentrating, extracting with ethyl acetate, concentrating, and drying to obtain Rabdosia Rubescens (Hemsl.) Hara extract.
2. The insecticidal composition comprising dimehypo of claim 1, wherein the weight ratio of attapulgite to fumed silica is 2:1.
3. The insecticidal composition containing dimehypo according to any one of claims 1 to 2, which is prepared by: mixing the effective components, the emulsifying agent, the dispersing agent, the thickening agent and the dispersing medium, shearing and uniformly mixing, adding silicon nitride grinding beads, and grinding until the D90 is smaller than 3 mu m, and removing the silicon nitride grinding beads after grinding is finished, thereby obtaining the insecticidal composition containing the dimefon.
4. A pesticidal composition comprising dimehypo according to claim 3, wherein the silicon nitride abrasive beads are added in an amount of 2.3 times the total mass of the pesticidal composition at a rotation speed of 2500r/min and a sanding time of 135min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228383.2A CN114651833B (en) | 2022-03-10 | 2022-03-10 | Insecticidal composition containing dimefon and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228383.2A CN114651833B (en) | 2022-03-10 | 2022-03-10 | Insecticidal composition containing dimefon and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114651833A CN114651833A (en) | 2022-06-24 |
| CN114651833B true CN114651833B (en) | 2024-01-16 |
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| CN202210228383.2A Active CN114651833B (en) | 2022-03-10 | 2022-03-10 | Insecticidal composition containing dimefon and application thereof |
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| CN1178636A (en) * | 1997-10-11 | 1998-04-15 | 郭长合 | Chemical biological pesticide without public nuisance and its preparing method |
| CN105746564A (en) * | 2015-12-28 | 2016-07-13 | 山东潍坊润丰化工股份有限公司 | Imidacloprid and bisultap containing insecticide composition and preparation method and application thereof |
| CN107114389A (en) * | 2017-06-23 | 2017-09-01 | 安徽德昌苗木有限公司 | Pesticidal combination, preparation for Chinese chestnut tree |
| CN111065271A (en) * | 2017-09-23 | 2020-04-24 | Upl有限公司 | Novel agrochemical combinations |
| CN111802402A (en) * | 2020-08-05 | 2020-10-23 | 山东京博石油化工有限公司 | Insecticidal effervescent tablet containing thiamethoxam and dimehypo for paddy field through broadcast application, and preparation method and application thereof |
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| TWI584733B (en) * | 2010-05-28 | 2017-06-01 | 巴地斯顏料化工廠 | Pesticidal mixture comprising abamectin, its use and methods of using the mixture |
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| CN105746564A (en) * | 2015-12-28 | 2016-07-13 | 山东潍坊润丰化工股份有限公司 | Imidacloprid and bisultap containing insecticide composition and preparation method and application thereof |
| CN107114389A (en) * | 2017-06-23 | 2017-09-01 | 安徽德昌苗木有限公司 | Pesticidal combination, preparation for Chinese chestnut tree |
| CN111065271A (en) * | 2017-09-23 | 2020-04-24 | Upl有限公司 | Novel agrochemical combinations |
| CN111802402A (en) * | 2020-08-05 | 2020-10-23 | 山东京博石油化工有限公司 | Insecticidal effervescent tablet containing thiamethoxam and dimehypo for paddy field through broadcast application, and preparation method and application thereof |
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