CN115474603A - Insecticidal composition for preventing and treating bemisia tabaci in taro field - Google Patents
Insecticidal composition for preventing and treating bemisia tabaci in taro field Download PDFInfo
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- CN115474603A CN115474603A CN202211312912.3A CN202211312912A CN115474603A CN 115474603 A CN115474603 A CN 115474603A CN 202211312912 A CN202211312912 A CN 202211312912A CN 115474603 A CN115474603 A CN 115474603A
- Authority
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- China
- Prior art keywords
- insecticidal composition
- furan tebufenozide
- taro
- bemisia tabaci
- thiamethoxam
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- 239000000203 mixture Substances 0.000 title claims abstract description 32
- 241000254127 Bemisia tabaci Species 0.000 title claims abstract description 31
- 244000205754 Colocasia esculenta Species 0.000 title claims abstract description 27
- 235000006481 Colocasia esculenta Nutrition 0.000 title claims abstract description 27
- 230000000749 insecticidal effect Effects 0.000 title claims abstract description 22
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000005937 Tebufenozide Substances 0.000 claims abstract description 56
- QYPNKSZPJQQLRK-UHFFFAOYSA-N tebufenozide Chemical compound C1=CC(CC)=CC=C1C(=O)NN(C(C)(C)C)C(=O)C1=CC(C)=CC(C)=C1 QYPNKSZPJQQLRK-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000005941 Thiamethoxam Substances 0.000 claims abstract description 25
- 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 24
- KAATUXNTWXVJKI-NSHGMRRFSA-N (1R)-cis-(alphaS)-cypermethrin Chemical compound CC1(C)[C@@H](C=C(Cl)Cl)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 KAATUXNTWXVJKI-NSHGMRRFSA-N 0.000 claims abstract description 23
- NDHXMRFNYMNBKO-PWSUYJOCSA-N chembl2227757 Chemical compound [O-][N+](=O)C([C@H]1CC[C@H](O1)N1CC2)=C1N2CC1=CC=C(Cl)N=C1 NDHXMRFNYMNBKO-PWSUYJOCSA-N 0.000 claims abstract description 19
- 241000607479 Yersinia pestis Species 0.000 claims abstract description 16
- 239000000575 pesticide Substances 0.000 claims abstract description 15
- 238000013329 compounding Methods 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000007884 disintegrant Substances 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000003995 emulsifying agent Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000003755 preservative agent Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000004563 wettable powder Substances 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- 239000003905 agrochemical Substances 0.000 claims 2
- 230000000361 pesticidal effect Effects 0.000 claims 2
- 239000002671 adjuvant Substances 0.000 claims 1
- 239000007798 antifreeze agent Substances 0.000 claims 1
- 238000009472 formulation Methods 0.000 claims 1
- 239000003090 pesticide formulation Substances 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 230000002195 synergetic effect Effects 0.000 abstract description 8
- 206010059866 Drug resistance Diseases 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 239000000447 pesticide residue Substances 0.000 abstract description 5
- 239000004480 active ingredient Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 241000238631 Hexapoda Species 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 230000001276 controlling effect Effects 0.000 description 6
- 239000013043 chemical agent Substances 0.000 description 5
- 229920001817 Agar Polymers 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- 239000008272 agar Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001018 virulence Effects 0.000 description 4
- 230000004071 biological effect Effects 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 239000004557 technical material Substances 0.000 description 3
- 231100000820 toxicity test Toxicity 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000258937 Hemiptera Species 0.000 description 2
- 240000001307 Myosotis scorpioides Species 0.000 description 2
- 239000005927 Pyriproxyfen Substances 0.000 description 2
- 241000985245 Spodoptera litura Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 230000008485 antagonism Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 2
- WCXDHFDTOYPNIE-RIYZIHGNSA-N (E)-acetamiprid Chemical compound N#C/N=C(\C)N(C)CC1=CC=C(Cl)N=C1 WCXDHFDTOYPNIE-RIYZIHGNSA-N 0.000 description 1
- 239000005875 Acetamiprid Substances 0.000 description 1
- 241000209524 Araceae Species 0.000 description 1
- 244000003416 Asparagus officinalis Species 0.000 description 1
- 235000005340 Asparagus officinalis Nutrition 0.000 description 1
- 241001486393 Cacopsylla chinensis Species 0.000 description 1
- 235000015001 Cucumis melo var inodorus Nutrition 0.000 description 1
- 240000002495 Cucumis melo var. inodorus Species 0.000 description 1
- 239000005889 Cyantraniliprole Substances 0.000 description 1
- 239000005891 Cyromazine Substances 0.000 description 1
- 241000289763 Dasygaster padockina Species 0.000 description 1
- UPEZCKBFRMILAV-JNEQICEOSA-N Ecdysone Natural products O=C1[C@H]2[C@@](C)([C@@H]3C([C@@]4(O)[C@@](C)([C@H]([C@H]([C@@H](O)CCC(O)(C)C)C)CC4)CC3)=C1)C[C@H](O)[C@H](O)C2 UPEZCKBFRMILAV-JNEQICEOSA-N 0.000 description 1
- 241000241125 Gryllotalpa gryllotalpa Species 0.000 description 1
- 244000017020 Ipomoea batatas Species 0.000 description 1
- 235000002678 Ipomoea batatas Nutrition 0.000 description 1
- 208000031888 Mycoses Diseases 0.000 description 1
- 239000005925 Pymetrozine Substances 0.000 description 1
- 241001414989 Thysanoptera Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- UPEZCKBFRMILAV-UHFFFAOYSA-N alpha-Ecdysone Natural products C1C(O)C(O)CC2(C)C(CCC3(C(C(C(O)CCC(C)(C)O)C)CCC33O)C)C3=CC(=O)C21 UPEZCKBFRMILAV-UHFFFAOYSA-N 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- DVBUIBGJRQBEDP-UHFFFAOYSA-N cyantraniliprole Chemical compound CNC(=O)C1=CC(C#N)=CC(C)=C1NC(=O)C1=CC(Br)=NN1C1=NC=CC=C1Cl DVBUIBGJRQBEDP-UHFFFAOYSA-N 0.000 description 1
- ZXQYGBMAQZUVMI-UNOMPAQXSA-N cyhalothrin Chemical compound CC1(C)C(\C=C(/Cl)C(F)(F)F)C1C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-UNOMPAQXSA-N 0.000 description 1
- LVQDKIWDGQRHTE-UHFFFAOYSA-N cyromazine Chemical compound NC1=NC(N)=NC(NC2CC2)=N1 LVQDKIWDGQRHTE-UHFFFAOYSA-N 0.000 description 1
- 229950000775 cyromazine Drugs 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- UPEZCKBFRMILAV-JMZLNJERSA-N ecdysone Chemical compound C1[C@@H](O)[C@@H](O)C[C@]2(C)[C@@H](CC[C@@]3([C@@H]([C@@H]([C@H](O)CCC(C)(C)O)C)CC[C@]33O)C)C3=CC(=O)[C@@H]21 UPEZCKBFRMILAV-JMZLNJERSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- -1 furan tebufenozide compound Chemical class 0.000 description 1
- 239000003630 growth substance Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 229930014550 juvenile hormone Natural products 0.000 description 1
- 239000002949 juvenile hormone Substances 0.000 description 1
- 150000003633 juvenile hormone derivatives Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000002547 new drug Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- QHMTXANCGGJZRX-WUXMJOGZSA-N pymetrozine Chemical compound C1C(C)=NNC(=O)N1\N=C\C1=CC=CN=C1 QHMTXANCGGJZRX-WUXMJOGZSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- 239000004562 water dispersible granule Substances 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
- 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
- A01N43/90—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
-
- 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
- A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P7/00—Arthropodicides
- A01P7/04—Insecticides
-
- 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)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Insects & Arthropods (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the technical field of pesticides, and particularly belongs to an insecticidal composition for preventing and controlling bemisia tabaci in taro fields. An insecticidal composition for preventing and treating bemisia tabaci in taro fields is prepared by compounding furan tebufenozide and beta-cypermethrin, cycloxaprid or thiamethoxam. The insecticidal composition provided by the invention has different insecticidal mechanisms of furan tebufenozide and beta-cypermethrin, cycloxaprid or thiamethoxam, and can act on target pests from different sites when being compounded for use, so that the generation of drug resistance of the target pests is delayed, and the service life of the insecticidal composition is prolonged. In addition, when 2 components in the insecticidal composition are compounded, the co-toxicity coefficient to the bemisia tabaci in the taro field is more than 120 within a certain mass ratio range, and the synergistic effect is shown. Compared with a single active ingredient, the composition can improve the control effect on the bemisa tabaci, is beneficial to reducing the application dosage of pesticide, reducing pesticide residue and lightening environmental pollution, and can provide support for researching and developing novel medicaments.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly belongs to an insecticidal composition for preventing and controlling bemisia tabaci in taro fields.
Background
Taro is taro of the genus taro of the family Araceae, also known as taro, etc. Insect pests affecting the production of the taro comprise prodenia litura, bemisia tabaci, grub cutworm, mole cricket and the like, wherein the bemisia tabaci is a taro common pest. The harm of bemisia tabaci to taro is mainly reflected in 3 aspects: firstly, plant juice is punctured and absorbed by a puncturing and absorbing mouthpart, so that the leaves of the damaged plants are faded green and yellow, and the growth is stopped; secondly, the spread of virus diseases leads to the spread of the virus diseases; and thirdly, honeydew secreted by adult and nymphs of bemisia tabaci can induce fungal diseases such as taro stain disease and the like and inhibit photosynthesis.
In the production process of taros, chemical agents such as 10 percent cyantraniliprole dispersible oil suspending agent, 50 percent pymetrozine water dispersible granules or 5 percent acetamiprid microemulsion and the like can be used for preventing and controlling bemisia tabaci in taro fields. However, the long-term use of a single chemical agent is likely to cause the generation of drug resistance of pests, resulting in a reduction in control efficiency. Although the prevention and control effect can be improved to a certain extent by increasing the pesticide application dose, pesticide residue is increased, environmental pollution is aggravated, and meanwhile, the generation of drug resistance of pests is accelerated. Therefore, there is a need to research and develop new drugs.
The furan tebufenozide is an insect growth regulator insecticide with ecdysone-like effect independently innovated in China, and interferes with the ecdysis process of insects by regulating juvenile hormone and ecdysone activity to cause premature ecdysis death of the insects. Application number CN201210151564.6 discloses an insecticidal composition containing pyriproxyfen, and specifically discloses that pyriproxyfen and furan tebufenozide can be used for controlling pests such as whitefly, bemisia tabaci, psylla chinensis, budworm, scale insect, caterpillar, thrips, asparagus caterpillar, prodenia litura and the like when used in combination.
The compounding of different pesticide active ingredients is one of the fast and effective ways to develop novel medicaments. Compounding different pesticide active ingredients can exhibit three types of action: antagonism, additive action and synergism. The compound formula with the synergistic effect can improve the control effect on the target, is favorable for reducing the application dosage of pesticide and postpones the generation of the drug resistance of the target.
The inventor discovers through indoor bioactivity tests that when the furan tebufenozide is compounded with the beta-cypermethrin, the cyromazine or the thiamethoxam according to a certain mass ratio, the synergistic effect on controlling bemisia tabaci in the taro field can be achieved, and support can be provided for developing novel chemical agents. At present, no report about the compounding of furan tebufenozide and beta-cypermethrin, cyhalothrin or thiamethoxam is found.
Disclosure of Invention
The invention aims to provide an insecticidal composition for preventing and controlling bemisia tabaci in taro fields, which aims to solve the problem that the control effect is reduced due to the fact that single chemical agents are used for a long time and easily cause drug resistance of pests. Although the prevention and control effect can be improved to a certain extent by increasing the pesticide application dose, the pesticide residue is increased, the environmental pollution is increased, and the drug resistance of pests is accelerated.
In order to achieve the purpose, the invention provides the following technical scheme:
the first purpose of the invention is to provide an insecticidal composition, which is prepared by compounding furan tebufenozide and beta-cypermethrin, cycloxaprid or thiamethoxam.
More specifically, the mass ratio of the furan tebufenozide to the beta-cypermethrin is 1-40:5-1.
More specifically, the mass ratio of the furan tebufenozide to the cycloxaprid is 1-8:8-1.
More specifically, the mass ratio of the furan tebufenozide to the thiamethoxam is 1-19:25-1.
The second purpose of the invention is to provide a pesticide preparation, which comprises the insecticidal composition for preventing and treating the bemisia tabaci and an agriculturally and pharmaceutically acceptable auxiliary agent.
Preferably, the pesticide preparation is in the form of a suspension, an aqueous dispersion granule or a wettable powder.
The agriculturally pharmaceutically acceptable auxiliary agent is selected from one or more of a dispersant, a wetting agent, an emulsifier, an antifreeze, a stabilizer, a binder, a preservative, an antifoaming agent, a solvent, a disintegrant, and a filler, to those skilled in the art.
The third purpose of the invention is to provide the application of the insecticidal composition or the pesticide preparation for controlling crop pests.
More specifically, the crop pest is bemisia tabaci in the taro field.
Compared with the prior art, the invention has the following beneficial effects:
(1) The insecticidal composition provided by the invention has different insecticidal mechanisms of furan tebufenozide and beta-cypermethrin, cycloxaprid or thiamethoxam, and can act on target pests from different sites when being compounded for use, so that the generation of drug resistance of the target pests is delayed, and the service life of the insecticidal composition is prolonged.
(2) When 2 components in the insecticidal composition are compounded, the co-toxicity coefficient to the bemisia tabaci in the taro field is more than 120 within a certain mass ratio range, and the synergistic effect is shown. Compared with a single active ingredient, the composition can improve the control effect on the bemisa tabaci, is beneficial to reducing the application dosage of pesticide, reducing pesticide residue and lightening environmental pollution, and can provide support for researching and developing novel medicaments.
Detailed Description
The invention will be better understood from the following examples, which are given by way of illustration only and should not be construed to limit the invention as described in detail in the claims.
Examples: indoor bioactivity test of furan tebufenozide compound
1. Test subjects: bemisia tabaci collected from the sweet potato field in Guangxi Lipu city is bred with fresh and clean taro leaves in a laboratory, and Bemisia tabaci adults with basically consistent size and activity (within 24h of emergence) are selected as test objects.
2. Reagent for testing
98% furan tebufenozide technical material (Jiangsu province institute of agricultural chemicals, ltd.), 95% beta-cypermethrin (Anhuifeng agro-chemical Co., ltd.), 97% cycloxaprid technical material (Liaoning Zhonghui Biotech Co., ltd.), 98% thiamethoxam technical material (Kaifeng Poulk Biochemical Co., ltd.)
Dissolving the raw medicine with dimethyl sulfoxide to prepare single-dose mother liquor, diluting with 0.1% Tween-80 aqueous solution, setting multiple groups of ratios, and setting 5 gradient mass concentrations for use according to the equal ratio method for each single dose and each group of ratios.
3. Test method
Refer to the finger tube membrane method and slightly improve. 5mL of a 1.4% agar solution by mass was pipetted into the bottom of a 3cm X20 cm tube. Punching a leaf disc with the diameter of 3cm on the taro leaves by using a puncher, soaking the punched leaf disc in the liquid medicine for 8s, taking out and drying. After the agar solidified, the back of the leaf disk was placed upward on the surface of the agar in the tube, and the leaf disk was tightly attached to the agar.
The treated test tube is placed above the bemisia tabaci adults with downward tube opening, the leaf is flicked, and the bemisia tabaci adults fly into the tube automatically. The mouth of each test tube is sealed by gauze after 20 test insects are collected in each test tube. The test tube is placed in a pest raising room upside down for raising and observing, wherein the raising conditions comprise the temperature (27 +/-1) DEG C, the humidity of 60-70%, the photoperiod of 12L:12D, each treatment was repeated 4 times and a treatment containing only dimethyl sulfoxide was set as a blank. And observing the death condition of the test insects 24h after treatment, respectively recording the total number of the insects and the number of dead insects of each treatment, and calculating the corrected death rate of each treatment according to the total number of the insects and the number of the dead insects.
In the above formula: p- -mortality in%; k- -number of dead insects; n- -total number of treated worms.
In the above formula: p 1 Corrected mortality in%; p t Treatment mortality in%; p 0 Blank mortality in%.
4. And (3) data analysis: by DPS softwareSubjecting the log values of each treatment agent concentration and the corrected mortality probability value of each treatment to regression analysis, and calculating LC of each treatment agent 50 And calculating the co-toxicity coefficient (CTC value) of the mixture according to the Sun Yunpei method.
In the above formula: ATI- -the observed virulence index of the combination; s- -LC of Standard drug 50 The unit is mg/L; LC of M-mixtures 50 The unit is mg/L.
TTI＝TI A ×P A +TI B ×P B
In the above formula: TTI- -theoretical toxicological index of the compound; TI A -the virulence index of the agent a; p A -the percentage of agent a in the mixture in percent (%); TI B -virulence index of the B agent; p B -the percentage of the agent B in the composition is given in percentage (%).
In the above formula: CTC-co-toxicity coefficient; ATI- -measured virulence index of the mixture; TTI- -mixture theory virulence index.
5. Evaluation of drug efficacy
And evaluating the synergism of the medicament according to the calculated co-toxicity coefficient (CTC), wherein the antagonism is the CTC of less than or equal to 80, the additivity is the CTC of more than 80 and less than 120, and the synergism is the CTC of more than or equal to 120, and the results are shown in tables 1-2.
TABLE 1 Furan tebufenozide and beta-cypermethrin compounded toxicity test results for Bemisia tabaci
| Name and proportion of the medicament | LC 50 (mg/L) | ATI | TTI | CTC |
| Furan tebufenozide | 9.26 | 100.00 | -- | -- |
| Beta-cypermethrin | 37.22 | 24.88 | -- | -- |
| Furan tebufenozide 1: beta-cypermethrin 5 | 18.56 | 49.89 | 37.40 | 133.40 |
| Furan tebufenozide 1: beta-cypermethrin 3 | 14.03 | 66.00 | 43.66 | 151.17 |
| Furan tebufenozide 1: beta-cypermethrin 1 | 7.29 | 127.02 | 62.44 | 203.43 |
| Furan tebufenozide 3: beta-cypermethrin 1 | 6.73 | 137.59 | 81.22 | 169.41 |
| Furan tebufenozide 5: beta-cypermethrin 1 | 5.18 | 178.76 | 87.48 | 204.35 |
| Furan tebufenozide 10: beta-cypermethrin 1 | 7.63 | 121.36 | 93.17 | 130.26 |
| Furan tebufenozide 20: beta-cypermethrin 1 | 5.84 | 158.56 | 96.42 | 164.44 |
| Furan tebufenozide 30: beta-cypermethrin 1 | 2.42 | 382.64 | 97.58 | 392.15 |
| Furan tebufenozide 40: beta-cypermethrin 1 | 6.27 | 147.69 | 98.17 | 150.44 |
As can be seen from Table 1, in the range of 1-40: within the mass ratio of 5-1, the co-toxicity coefficient of the compounded furan tebufenozide and beta-cypermethrin to the bemisia tabaci is greater than 120, which shows that the compounded furan tebufenozide and beta-cypermethrin has a synergistic effect on the biological activity of the bemisia tabaci.
Table 2 toxicity test results of furan tebufenozide and cycloxaprid compounded on bemisia tabaci
| Name and proportion of the medicament | LC 50 (mg/L) | ATI | TTI | CTC |
| Furan tebufenozide | 9.26 | 100.00 | -- | -- |
| Cycloxaprid | 25.85 | 35.82 | -- | -- |
| Furan tebufenozide 1: cycloxaprid 8 | 12.37 | 74.86 | 42.95 | 174.28 |
| Furan tebufenozide 1: cycloxaprid 4 | 9.54 | 97.06 | 48.66 | 199.49 |
| Furan tebufenozide 1: cycloxaprid 2 | 13.15 | 70.42 | 57.21 | 123.08 |
| Furan tebufenozide 1: cycloxaprid 1 | 10.52 | 88.02 | 67.91 | 129.61 |
| Furan tebufenozide 2: cycloxaprid 1 | 8.14 | 113.76 | 78.61 | 144.72 |
| Furan tebufenozide 4: cycloxaprid 1 | 6.45 | 143.57 | 87.16 | 164.71 |
| Furan tebufenozide 8: cycloxaprid 1 | 7.11 | 130.24 | 92.87 | 140.24 |
As can be seen from Table 2, in the range of 1-8: within the mass ratio of 8-1, the co-toxicity coefficient of the compound of the furan tebufenozide and the cycloxaprid to the bepiate bepialus tabaci is larger than 120, which shows that the compound of the furan tebufenozide and the cycloxaprid has a synergistic effect on the biological activity of the bepiate bepialus tabaci.
Table 3 Furan tebufenozide and thiamethoxam compounded toxicity test result for Bemisia tabaci
| Name and proportion of the medicament | LC 50 (mg/L) | ATI | TTI | CTC |
| Furan tebufenozide | 9.26 | 100.00 | -- | -- |
| Thiamethoxam | 12.36 | 74.92 | -- | -- |
| Furan tebufenozide 1: thiamethoxam 25 | 9.60 | 96.46 | 75.88 | 127.11 |
| Furan tebufenozide 1: thiamethoxam 20 | 7.18 | 128.97 | 76.11 | 169.44 |
| Furan tebufenozide 1: thiamethoxam 15 | 6.40 | 144.69 | 76.49 | 189.17 |
| Furan tebufenozide 1: thiamethoxam 10 | 7.55 | 122.65 | 77.20 | 158.87 |
| Furan tebufenozide 1: thiamethoxam 5 | 9.52 | 97.27 | 79.10 | 122.97 |
| Furan tebufenozide 1: thiamethoxam 1 | 7.71 | 120.10 | 87.46 | 137.32 |
| Furan tebufenozide 5: thiamethoxam 1 | 6.41 | 144.46 | 95.82 | 150.76 |
| Furan tebufenozide 10: thiamethoxam 1 | 4.37 | 211.90 | 97.72 | 216.84 |
| Furan tebufenozide 15: thiamethoxam 1 | 3.29 | 281.46 | 98.43 | 285.94 |
| Furan tebufenozide 19: thiamethoxam 1 | 5.01 | 184.83 | 98.75 | 187.18 |
As can be seen from Table 3, in the range of 1-19: within the mass ratio of 25-1, the co-toxicity coefficient of the compounded furan tebufenozide and thiamethoxam to the taro field bemisia tabaci is greater than 120, which indicates that the compounded furan tebufenozide and thiamethoxam have synergistic effect on the biological activity of the taro field bemisia tabaci.
In conclusion, when the furan tebufenozide is compounded with the beta-cypermethrin, the cycloxaprid or the thiamethoxam, the pesticide composition has a synergistic effect in a certain mass ratio range, can improve the control effect on the tobacco whiteflies in the taro field, can reduce the application dosage of chemical agents on the basis, and avoids the problems of pesticide residues, environmental pollution and the like caused by large-dosage application to a certain extent.
The foregoing is only a preferred embodiment of the invention and modifications, which are within the scope of the invention, will be apparent to those skilled in the art without departing from the principles of the invention.
Claims (9)
1. An insecticidal composition is characterized by being prepared by compounding furan tebufenozide with beta-cypermethrin, cycloxaprid or thiamethoxam.
2. The insecticidal composition according to claim 1, wherein the mass ratio of the furan tebufenozide to the beta cypermethrin is 1-40:5-1.
3. The insecticidal composition as claimed in claim 1, wherein the mass ratio of furan tebufenozide to cycloxaprid is 1-8:8-1.
4. The insecticidal composition according to claim 1, wherein the mass ratio of furan tebufenozide to thiamethoxam is 1-19:25-1.
5. A pesticide preparation, which is characterized by comprising the pesticide composition for preventing and controlling the bemisia tabaci of the taro field as claimed in any one of claims 1 to 4 and an agriculturally pharmaceutically acceptable auxiliary agent.
6. The agricultural chemical preparation according to claim 5, wherein the agricultural chemical preparation is in the form of a suspension, an aqueous dispersion granule or a wettable powder.
7. A pesticide formulation as claimed in claim 5 wherein said agriculturally pharmaceutically acceptable adjuvants are selected from one or more of dispersants, wetting agents, emulsifiers, antifreeze agents, stabilisers, binders, preservatives, antifoam agents, solvents, disintegrants and fillers.
8. Use of the pesticidal composition of any one of claims 1 to 5 or the pesticidal formulation of any one of claims 5 to 7 for controlling crop pests.
9. The use as claimed in claim 8, wherein the crop pest is bemisia tabaci in taro fields.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1471822A (en) * | 2003-07-15 | 2004-02-04 | 江苏省农药研究所有限公司 | Composition with insect killing activity |
| CN104430483A (en) * | 2014-11-25 | 2015-03-25 | 孙素一 | Pesticide composition containing bifenthrin and application of the composition |
| CN104430487A (en) * | 2014-11-25 | 2015-03-25 | 孙素一 | Pesticide composition containing cyhalothrin and application of the composition |
| CN108308192A (en) * | 2018-05-09 | 2018-07-24 | 惠州市锦恒工业模具设计合伙企业(普通合伙) | A kind of composition pesticide containing furan tebufenozide and Tefluthrin |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1471822A (en) * | 2003-07-15 | 2004-02-04 | 江苏省农药研究所有限公司 | Composition with insect killing activity |
| CN104430483A (en) * | 2014-11-25 | 2015-03-25 | 孙素一 | Pesticide composition containing bifenthrin and application of the composition |
| CN104430487A (en) * | 2014-11-25 | 2015-03-25 | 孙素一 | Pesticide composition containing cyhalothrin and application of the composition |
| CN108308192A (en) * | 2018-05-09 | 2018-07-24 | 惠州市锦恒工业模具设计合伙企业(普通合伙) | A kind of composition pesticide containing furan tebufenozide and Tefluthrin |
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