CN115349523B - Synergistic composition for preventing and treating litchi pedicel borer - Google Patents
Synergistic composition for preventing and treating litchi pedicel borer Download PDFInfo
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- CN115349523B CN115349523B CN202211113747.9A CN202211113747A CN115349523B CN 115349523 B CN115349523 B CN 115349523B CN 202211113747 A CN202211113747 A CN 202211113747A CN 115349523 B CN115349523 B CN 115349523B
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- litchi
- synergistic composition
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- 230000002195 synergetic effect Effects 0.000 title claims abstract description 22
- 239000000203 mixture Substances 0.000 title claims abstract description 16
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- 239000005660 Abamectin Substances 0.000 claims abstract description 26
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- SBPBAQFWLVIOKP-UHFFFAOYSA-N chlorpyrifos Chemical compound CCOP(=S)(OCC)OC1=NC(Cl)=C(Cl)C=C1Cl SBPBAQFWLVIOKP-UHFFFAOYSA-N 0.000 description 1
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- QQQYTWIFVNKMRW-UHFFFAOYSA-N diflubenzuron Chemical compound FC1=CC=CC(F)=C1C(=O)NC(=O)NC1=CC=C(Cl)C=C1 QQQYTWIFVNKMRW-UHFFFAOYSA-N 0.000 description 1
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- 229960003692 gamma aminobutyric acid Drugs 0.000 description 1
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- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 description 1
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- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- HYJYGLGUBUDSLJ-UHFFFAOYSA-N pyrethrin Natural products CCC(=O)OC1CC(=C)C2CC3OC3(C)C2C2OC(=O)C(=C)C12 HYJYGLGUBUDSLJ-UHFFFAOYSA-N 0.000 description 1
- VJFUPGQZSXIULQ-XIGJTORUSA-N pyrethrin II Chemical compound CC1(C)[C@H](/C=C(\C)C(=O)OC)[C@H]1C(=O)O[C@@H]1C(C)=C(C\C=C/C=C)C(=O)C1 VJFUPGQZSXIULQ-XIGJTORUSA-N 0.000 description 1
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- NWWZPOKUUAIXIW-FLIBITNWSA-N thiamethoxam Chemical compound [O-][N+](=O)\N=C/1N(C)COCN\1CC1=CN=C(Cl)S1 NWWZPOKUUAIXIW-FLIBITNWSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
Classifications
-
- 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
- A01N55/00—Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur
-
- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
-
- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- 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)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the technical field of pesticides, in particular to a synergistic composition for preventing and treating litchi pedicel borer. The synergistic composition for preventing and treating litchi pedicel borer is compounded with abamectin, furan tebufenozide or fluopyram and silafluofen as effective components. The synergistic composition has different mechanisms of action of avermectin, furtebufenozide or fluopicolide and silafluofen on target pests, and can effectively delay the generation of drug resistance of thebai worms during compound use, and prolong the updating period of the medicament to a certain extent, thereby playing a role in protecting the medicament. In addition, the active ingredients of the synergistic composition have a synergistic effect on preventing and controlling the adult litchi Di-moths when being compounded, and compared with any one of the active ingredients, the synergistic composition can improve the preventing and controlling effect on Di-moths, is beneficial to reducing the application amount of the active ingredients, reduces pesticide residues and reduces the preventing and controlling cost, and can provide support for developing novel chemical agents.
Description
Technical Field
The invention relates to the technical field of pesticides, in particular to a synergistic composition for preventing and treating litchi pedicel borer.
Background
Litchi Di moth (Conopomorpha sinensis Bradley) is lepidoptera, which is an important pest for injuring litchi and longan. Litchi Di moths are mainly distributed in litchi and longan producing areas in Guangxi, guangdong, fujian and Taiwan provinces. Female moths of the litchi pedicel borer lay eggs on fruit peels during the growth period of litchi and longan fruits, and the eggs are directly eaten into the fruits to cause damage after hatching into larvae, so that a large number of fruits fall. Part of the falling victims are attached with larvae and worm manure, which affects the quality and economic value of the fruits. In addition, the litchi pedicel borer can eat shoots, tender leaves, flowers and ears and the like, and the shoot withering, she Diao, the ear drying withering and the like are caused, so that the yield of litchi and longan is affected.
At present, the control of the litchi fruit borers mainly depends on chemical agents in production, but because the litchi fruit borers directly enter fruits from the bottoms of egg shells after hatching, the whole larva stage is harmful in the fruits, so that the chemical agents are difficult to contact with the larvae to achieve the insecticidal effect, and the litchi fruit borers can only kill adults or eggs in many times. The current national registration allows for the production of a wide variety of less agents, including chlorpyrifos, diflubenzuron, lambda-cyhalothrin-chlorpyrifos, and the like. However, in recent years, as the drug resistance of litchi pedicel moth increases, the control effect of these agents has been gradually reduced.
Avermectin is a sixteen-membered macrolide compound with insecticidal, acaricidal and nematicidal activities, is produced by fermentation of avermectin-producing streptomycin (Streptomyces avermitilis), has contact and stomach poisoning effects on acarid pests and other various pests, has a mechanism of action which is different from that of a common pesticide, is used for interfering neurophysiologic activities, stimulates release of gamma-aminobutyric acid, and has an inhibitory effect on nerve conduction. The mite adults, nymphs and insect larvae are paralytic after being relieved with abamectin, and the mites are inactive and do not eat, and die after 2-4 days.
Furformyl hydrazine is a kind of dihydrazide pesticide with unique action mechanism, and belongs to the field of insect growth regulator. The medicine simulates insect ecdysone, and after 4-16 hours after larvae such as beet armyworm take food, the larvae begin to take food, and then start ecdysone. After 24 hours, the head shells of the poisoned larvae are early matured and cracked, the molting process is stopped, and a light interval exists between the heads and the chest of the larvae, so that the larvae are early matured and cannot be completely molted. Furformyl hydrazine has stomach toxicity effect and contact killing effect, and its action site and action mode are completely different from those of pyrethrin.
The flupirfuranone is a novel pesticide acting on nicotinic acetylcholine receptors, has the same action modes as imidacloprid, nitenpyram, thiamethoxam and the like, is an agonist, and after being bonded to receptor proteins, activates receptors to generate biological reactions, induces depolarizing ion flows, enables target pest nerve cells to be always in excited, disordered and deregulated states, and finally dies due to central nervous system collapse.
Silafluofen (silafluofen) is a silicon-containing organic pesticide with a molecular formula of C 25 H 29 FO 2 Si, its structural formula is as follows:
the silafluofen does not contain ester bonds, and is a spectral insecticidal and acaricidal agent. The silafluofen acts on the nervous system of insects, interferes with neurons through interaction with sodium ion channels, and has stomach toxicity and contact killing effects. In agricultural production, it can prevent and treat various pests and has low toxicity to mammals and fish.
Compounding different pesticide varieties is a common method for developing novel medicaments. The inventor finds that the abamectin, the furtebufenozide or the fluopicolide and the silafluofen have synergistic effect when being compounded by a large number of indoor experiments, and related reports are not yet found at present.
Disclosure of Invention
The invention aims to provide a synergistic composition for preventing and treating litchi pedicel moths, which can improve the prevention and treatment effect on litchi pedicel moths, and the two compounded active ingredients have different action mechanisms and can delay the generation of drug resistance of pests.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the synergistic composition for preventing and treating litchi pedicel borer is compounded with abamectin, furan tebufenozide or fluopyram and silafluofen as effective components.
Preferably, the mass ratio of the abamectin to the silafluofen is 1-60:8-1.
Preferably, the mass ratio of the furan tebufenozide to the silafluofen is 1-9:50-1.
Preferably, the mass ratio of the flupirfenidone to the silafluofen is 1-40:40-1.
Compared with the prior art, the invention has the following beneficial effects:
(1) The synergistic composition has different mechanisms of action of avermectin, furtebufenozide or fluopicolide and silafluofen on target pests, and can effectively delay the generation of drug resistance of thebai worms during compound use, and prolong the updating period of the medicament to a certain extent, thereby playing a role in protecting the medicament.
(2) The synergistic composition has a synergistic effect on preventing and controlling the adult of the litchi Di-moths when abamectin, furan tebufenozide or fluopyram and silafluofen are compounded, and compared with any one of the effective components, the synergistic composition can improve the preventing and controlling effect on the Di-moths, is beneficial to reducing the application amount of the effective components, reduces the pesticide residue and the preventing and controlling cost, and can provide support for developing novel chemical agents.
Detailed Description
The invention will be better understood from the following examples, which are described only for illustration of the invention and should not be construed as limiting the invention as detailed in the claims.
Examples: indoor biological activity test of pesticide for preventing and treating pedicellus litchi
1. Test subjects
The fallen fruits are collected in the litchi garden and are paved on the ground after being brought back to a laboratory, a layer of litchi leaves are covered, and the insect pupas are collected every day. Placing the pupa into a cage, placing cotton balls dipped with 10% honey water into the cage after the adult becomes eclosion, and selecting healthy and active adult of 3-4 days as a test object.
2. Test agent
97% avermectin original medicine (Jiangsu Longdao chemical Co., ltd.)
98% furan tebufenozide crude drug (Jiangsu province pesticide research institute Co., ltd.)
96% fluopyram original drug (Bayer Co., ltd.)
93% silafluofen (Jiangsu-you plant protection Co., ltd.)
The raw materials are dissolved by dimethyl sulfoxide to prepare a single-dose mother solution, then the single-dose mother solution is diluted by 0.1% Tween-80 aqueous solution, a plurality of groups of proportions are arranged, and each single dose and each group of proportion mixture are provided with 6 gradient mass concentrations according to an equal ratio method for standby.
3. Test method
Adopts a medicine membrane method. Pouring 20mL of the liquid medicine into a 500mL triangular flask, rotating the triangular flask to form a uniform medicine film on the inner wall of the triangular flask, discarding the redundant liquid medicine and airing. Introducing a test object into a triangular flask, placing a cotton ball dipped with 10% of honey water in the triangular flask, sealing with medical gauze, and then inverting the sealed bottle into a climatic chamber, wherein the photoperiod is 14L at the temperature (25+/-1) DEG C and the relative humidity of about 85 percent: feeding under 10D conditions, 20 heads per duplicate adult, 4 replicates per treatment setting. A treatment containing only dimethyl sulfoxide was used as a blank. And observing death conditions of test insects 24 hours after treatment, respectively recording total insect numbers and death insect numbers of each treatment, and calculating the corrected death rate of each treatment according to the total insect numbers and the death insect numbers.
In the above formula: p- -mortality in units of; k- -number of dead insects; n- -total number of insects treated.
In the above formula: p (P) 1 -correct mortality in units of; p (P) t -mortality rate in units of treatment; p (P) 0 Blank mortality in%.
4. Data analysis: regression analysis of the log concentration values of each treatment agent and the corrected mortality probability values of each treatment was performed using DPS software to calculate LC of each treatment agent 50 And the co-toxicity coefficient (CTC value) of the mixture was calculated according to the grand cloud Pei method.
5. Evaluation of drug efficacy
The synergy of the agents was evaluated based on the calculated co-toxicity coefficient (CTC), CTC.ltoreq.80 being antagonism, CTC.ltoreq.120 being additive, CTC.ltoreq.120 being synergy, the results being shown in tables 1-3.
Table 1 toxicity measurement results of Avermectin and silafluofen on litchi Di moth
| Medicament name and ratio | LC50(mg/L) | ATI | TTI | CTC |
| Avermectins | 12.75 | 100.00 | -- | -- |
| Fluothrin | 51.26 | 24.87 | -- | -- |
| Avermectin 1: silafluofen 8 | 21.43 | 59.50 | 33.22 | 179.09 |
| Avermectin 1: silafluofen 5 | 14.54 | 87.69 | 37.39 | 234.50 |
| Avermectin 1: silafluofen 3 | 19.90 | 64.07 | 43.65 | 146.77 |
| Avermectin 1: fluothrin 1 | 12.21 | 104.42 | 62.44 | 167.25 |
| Avermectin 5: fluothrin 1 | 11.55 | 110.39 | 87.48 | 126.19 |
| Avermectin 7: fluothrin 1 | 9.69 | 131.58 | 90.61 | 145.22 |
| Abamectin 15: fluothrin 1 | 6.34 | 201.10 | 95.30 | 211.01 |
| Avermectin 30: fluothrin 1 | 7.73 | 164.94 | 97.58 | 169.04 |
| AvermectinElement 60: fluothrin 1 | 10.33 | 123.43 | 98.77 | 124.97 |
As can be seen from Table 1, at 1-60: in the mass ratio range of 8-1, the co-toxicity coefficient of abamectin and silafluofen to the litchi pedicel borer is more than 120 after the abamectin and the silafluofen are compounded, and the synergistic effect is shown.
TABLE 2 toxicity measurement results of Furazzide and silafluofen compounded on litchi Di moth
As can be seen from table 2, at 1-9: within the mass ratio range of 50-1, the co-toxicity coefficient of the compounded furtebufenozide and the silafluofen on the litchi pedicel borer is more than 120, and the synergistic effect is shown; especially when the mass ratio is 1: and at 7, the co-toxicity coefficient reaches 820.90, and the synergistic effect is particularly remarkable.
TABLE 3 toxicity measurement results of Fluopicofuranone and Fluothrin compounded on litchi Di moth
| Medicament name and ratio | LC50(mg/L) | ATI | TTI | CTC |
| Fluopirofuranone | 18.68 | 100.00 | -- | -- |
| Fluothrin | 51.26 | 36.44 | -- | -- |
| Flupirfuranone 1: silafluofen 40 | 28.95 | 64.53 | 37.99 | 169.84 |
| Flupirfuranone 1: silafluofen 20 | 26.21 | 71.27 | 39.47 | 180.58 |
| Flupirfuranone 1: silafluofen 10 | 20.64 | 90.50 | 42.22 | 214.36 |
| Flupirfuranone 1: silafluofen 5 | 18.45 | 101.25 | 47.03 | 215.26 |
| Flupirfuranone 1: silafluofen 3 | 14.18 | 131.73 | 52.33 | 251.73 |
| Flupirfuranone 1: fluothrin 1 | 16.32 | 114.46 | 68.22 | 167.78 |
| Flupirfuranone 3: fluothrin 1 | 5.44 | 343.38 | 84.11 | 408.25 |
| Flupirfuranone 5: fluothrin 1 | 7.28 | 256.59 | 89.41 | 286.99 |
| Flupirfuranone 10: fluothrin 1 | 4.73 | 394.93 | 94.22 | 419.14 |
| Flupirfuranone 20: fluothrin 1 | 9.92 | 188.31 | 96.97 | 194.18 |
| Flupirfuranone 40: fluothrin 1 | 12.46 | 149.92 | 98.45 | 152.28 |
As can be seen from Table 3, at 1-40: within the mass ratio range of 40-1, the co-toxicity coefficient of the flupirfuranone and the silafluofen to the litchi pedicel borer is more than 120 after the flupirfuranone and the silafluofen are compounded, and the synergistic effect is shown.
In conclusion, abamectin, furan tebufenozide or fluopyram and silafluofen are compounded to form the synergistic effect of the adult litchi Di-moths.
Claims (1)
1. The synergistic composition for preventing and treating the litchi pedicel moths is characterized in that the effective components are formed by binary combination of abamectin and silafluofen, and the mass ratio of the abamectin to the silafluofen is 1: 8. 1: 5. 1: 3. 1: 1. 5: 1. 7: 1. 15: 1. 30:1 and 60:1.
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