CN113057172A - Ternary compound seed dressing agent containing prothioconazole and fludioxonil - Google Patents
Ternary compound seed dressing agent containing prothioconazole and fludioxonil Download PDFInfo
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- CN113057172A CN113057172A CN202110223611.2A CN202110223611A CN113057172A CN 113057172 A CN113057172 A CN 113057172A CN 202110223611 A CN202110223611 A CN 202110223611A CN 113057172 A CN113057172 A CN 113057172A
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 55
- MUJOIMFVNIBMKC-UHFFFAOYSA-N fludioxonil Chemical compound C=12OC(F)(F)OC2=CC=CC=1C1=CNC=C1C#N MUJOIMFVNIBMKC-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000005781 Fludioxonil Substances 0.000 title claims abstract description 37
- MNHVNIJQQRJYDH-UHFFFAOYSA-N 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-1,2-dihydro-1,2,4-triazole-3-thione Chemical compound N1=CNC(=S)N1CC(C1(Cl)CC1)(O)CC1=CC=CC=C1Cl MNHVNIJQQRJYDH-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000005825 Prothioconazole Substances 0.000 title claims abstract description 31
- 150000001875 compounds Chemical class 0.000 title claims description 12
- XQJQCBDIXRIYRP-UHFFFAOYSA-N N-{2-[1,1'-bi(cyclopropyl)-2-yl]phenyl}-3-(difluoromethyl)-1-methyl-1pyrazole-4-carboxamide Chemical compound FC(F)C1=NN(C)C=C1C(=O)NC1=CC=CC=C1C1C(C2CC2)C1 XQJQCBDIXRIYRP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000005834 Sedaxane Substances 0.000 claims abstract description 13
- 229940044949 eucalyptus oil Drugs 0.000 claims abstract description 12
- 239000010642 eucalyptus oil Substances 0.000 claims abstract description 12
- 239000005783 Fluopyram Substances 0.000 claims abstract description 5
- KVDJTXBXMWJJEF-UHFFFAOYSA-N fluopyram Chemical compound ClC1=CC(C(F)(F)F)=CN=C1CCNC(=O)C1=CC=CC=C1C(F)(F)F KVDJTXBXMWJJEF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000005738 Bixafen Substances 0.000 claims abstract description 3
- LDLMOOXUCMHBMZ-UHFFFAOYSA-N bixafen Chemical compound FC(F)C1=NN(C)C=C1C(=O)NC1=CC=C(F)C=C1C1=CC=C(Cl)C(Cl)=C1 LDLMOOXUCMHBMZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000011282 treatment Methods 0.000 claims description 13
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 239000000080 wetting agent Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 4
- 239000000375 suspending agent Substances 0.000 claims description 4
- 239000002552 dosage form Substances 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims description 2
- 239000003094 microcapsule Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
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- 230000035784 germination Effects 0.000 abstract description 7
- 206010059866 Drug resistance Diseases 0.000 abstract description 6
- 238000013329 compounding Methods 0.000 abstract description 5
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 239000004480 active ingredient Substances 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 16
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- 235000002017 Zea mays subsp mays Nutrition 0.000 description 7
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- 235000005822 corn Nutrition 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
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- 244000052616 bacterial pathogen Species 0.000 description 4
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- 239000000463 material Substances 0.000 description 4
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- 239000000575 pesticide Substances 0.000 description 4
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- 239000000725 suspension Substances 0.000 description 4
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- 238000011049 filling Methods 0.000 description 3
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- 239000002994 raw material Substances 0.000 description 3
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- 238000003756 stirring Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 241000223218 Fusarium Species 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 241001361634 Rhizoctonia Species 0.000 description 2
- 244000061456 Solanum tuberosum Species 0.000 description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 description 2
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000002538 fungal effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 235000009973 maize Nutrition 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- PCYWMDGJYQAMCR-UHFFFAOYSA-N 1h-pyrrole-3-carbonitrile Chemical compound N#CC=1C=CNC=1 PCYWMDGJYQAMCR-UHFFFAOYSA-N 0.000 description 1
- 241000223600 Alternaria Species 0.000 description 1
- 241000228212 Aspergillus Species 0.000 description 1
- 241001530056 Athelia rolfsii Species 0.000 description 1
- 239000005488 Bispyribac Substances 0.000 description 1
- 208000003643 Callosities Diseases 0.000 description 1
- 241000221955 Chaetomium Species 0.000 description 1
- 241000371644 Curvularia ravenelii Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 108010072039 Histidine kinase Proteins 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 206010027146 Melanoderma Diseases 0.000 description 1
- 241001459558 Monographella nivalis Species 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 241000228143 Penicillium Species 0.000 description 1
- 241000233647 Phytophthora nicotianae var. parasitica Species 0.000 description 1
- 240000004713 Pisum sativum Species 0.000 description 1
- 235000010582 Pisum sativum Nutrition 0.000 description 1
- 241000813090 Rhizoctonia solani Species 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 235000019714 Triticale Nutrition 0.000 description 1
- 241000219094 Vitaceae Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- RYVIXQCRCQLFCM-UHFFFAOYSA-N bispyribac Chemical compound COC1=CC(OC)=NC(OC=2C(=C(OC=3N=C(OC)C=C(OC)N=3)C=CC=2)C(O)=O)=N1 RYVIXQCRCQLFCM-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000026731 phosphorylation Effects 0.000 description 1
- 238000006366 phosphorylation reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- 244000000034 soilborne pathogen Species 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 241000228158 x Triticosecale Species 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/08—Immunising seed
-
- 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
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-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
- A01N43/34—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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Soil Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses a ternary complex seed dressing agent containing prothioconazole and fludioxonil, which comprises an effective component A, B, C, wherein A is prothioconazole, B is fludioxonil, C is one of sedaxane, fluopyram and bixafen, the content of A is 0.2-15%, the content of B is 0.5-15%, and the content of C is 1-45%. After the seed dressing agent is compounded, prothioconazole, fludioxonil and a third active ingredient act to realize synergism, and are not easy to generate drug resistance, the compounding shows synergism, the dosage of the seed dressing agent is reduced compared with a single agent after compounding, the use cost is reduced, eucalyptus oil is added, the pungent smell of the compounded seed dressing agent is increased, underground pests can be effectively repelled, the germination rate of seeds is improved, and the eucalyptus oil is non-toxic and harmless and is more environment-friendly.
Description
Technical Field
The invention relates to the technical field of pesticide compounding, in particular to a ternary compound seed dressing agent containing prothioconazole and fludioxonil.
Background
Fludioxonil for preventing and treating stinking smut, snow rot, snow mold, banded sclerotial blight, root rot, take-all disease, glume blight and stalk smut of wheat: barley stripe disease, net blotch, head smut: maize bacterial wilt, stem rot, damping off: cotton rhizoctonia rot, red rot, anthracnose, black root, seed rot: soybean peanut damping off, root rot (caused by fusarium): rice bakanae disease, leaf spot of flax, early leaf blast and damping off: black spot and black shank of rape: potato damping off, scab: vegetable blight, anthracnose, brown spot, gummy stem blight. Is suitable for crops such as wheat, barley, corn, cotton, soybean, peanut, rice, rape, potato, vegetables and the like.
FLUDIOXONIL, named FLUDIOXONIL in English, has a molecular weight of 248.185, a molecular formula of C12H6F2N2O2 and a chemical name of 4- (2, 2-difluoro-1, 3-benzodioxy-4-yl) pyrrole-3-nitrile; 4- (2, 2-difluoro-1, 3-benzodioxol-4-yl) pyrrole-3-carbonitrile. By inhibiting the transfer associated with phosphorylation of glucose and inhibiting the growth of fungal mycelia, the germs die eventually. The action mechanism is unique, and the bactericide has no cross resistance with the existing bactericide. According to FRAC (action group of fungicide resistance) in the international world, the action mechanism of fludioxonil is considered to be the activity of histidine kinase related to osmotic pressure regulation signals, and the fludioxonil is used for treating the leaf surfaces of wheat, barley, corn, pea, rape, rice, vegetables, grapes, lawn and ornamental crops, preventing and treating fusarium nivale, triticale cerealis, rhizoctonia solani and the like and has a special effect on gray mold; treatment of cereal and non-cereal seeds for the control of seed-borne and soil-borne pathogens such as Alternaria, Chaetomium, Aspergillus, Fusarium, Helminthosporium, Rhizoctonia and Penicillium.
In modern agricultural production, the seed is treated with seed coating agent, and this is one of the economic and simple methods for preventing and controlling soil-borne and seed-borne diseases of underground pests and crops. The seed treating agent is one kind of pesticide preparation with filming property for treating crop and other plant seed, and has the functions of allowing water and air to pass through, slow releasing of pesticide, seed fertilizer and other matter, killing underground pests and pests, preventing and treating diseases and systemic diseases, raising seed germination rate, promoting the growth of seedling, etc.
At present, the annual crop seed demand in China is about 700 million tons, the commodity seed amount is about 350 million tons, the coating treatment accounts for about 10 percent, and the two coating agents have huge market demand and very broad prospects.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a ternary complex seed dressing agent containing prothioconazole and fludioxonil, which has the advantages of good synergistic action and compatibility, time and labor saving, less pollution compared with other pesticide application technologies, high control effect, low toxicity, environmental protection and insect prevention and disease treatment effects.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
the ternary complex seed dressing agent comprises an effective component A, B, C, wherein A is prothioconazole, B is fludioxonil, C is one of sedaxane, fluopyram and dipheny, the content of A is 0.2-15%, the content of B is 0.5-15%, and the content of C is 1-45%.
And C is sedaxane.
The content of A is 5%, the content of B is 10% and the content of C is 35%.
The formulation of the ternary complex seed dressing agent is one of a suspended seed coating agent, a seed treatment suspending agent, a microcapsule suspending agent and a dry seed dressing agent.
The dosage form of the ternary complex seed dressing agent is a dry seed dressing agent.
The dry seed dressing agent contains A, B, C, eucalyptus oil, a wetting agent, a dispersing agent, a film forming agent and a filler.
The eucalyptus oil content is 3% -5%, the wetting agent content is 3% -6%, the dispersing agent content is 2.5% -7%, the film-forming agent content is 1% -4%, and the balance is made up to 100% by the filler.
Has the advantages that:
1. after compounding, the prothioconazole, fludioxonil and the third active ingredient have synergistic effect, and are not easy to generate drug resistance: the growth of fungal mycelia is inhibited, so that germs die finally, the three effective components have different action mechanisms on the germs, and the compounding shows synergistic effect;
2. compared with a single agent, the compound preparation reduces the dosage of the agent, and the use cost is reduced: the fludioxonil is used independently, so that the cost is obviously reduced on the premise of ensuring the drug effect.
3. The bactericide has no drug resistance and obvious effect, different mechanisms of all effective components, different action sites and no interactive drug resistance, is not easy to generate drug resistance by mutually mixing germs, and solves the problem of drug resistance generated by singly using a certain bactericide at present;
4. the eucalyptus oil is added, so that the pungent smell of the compound seed dressing agent is increased, underground pests can be effectively driven away, the germination rate of seeds is improved, and the eucalyptus oil is non-toxic, harmless and more environment-friendly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described with the following embodiments, but the present invention is by no means limited to these examples.
Example 1
The raw materials comprise: 2% of prothioconazole, 4% of fludioxonil, 15% of sedaxane, 4% of eucalyptus oil, 4% of film forming agent, 6% of dispersing agent, 5% of wetting agent and the balance of filling. The materials are uniformly mixed in a mixing and stirring kettle according to the corresponding proportion to prepare the dry seed dressing agent of 2 percent of prothioconazole, 4 percent of fludioxonil and 15 percent of sedaxane.
Example 2
The raw materials comprise: 5% of prothioconazole, 10% of fludioxonil, 35% of sedaxane, 4% of eucalyptus oil, 3% of film forming agent, 5% of dispersing agent, 4% of wetting agent and the balance of filling. The materials are uniformly mixed in a mixing and stirring kettle according to the corresponding proportion to prepare the dry seed dressing agent of 5 percent of prothioconazole, 10 percent of fludioxonil and 35 percent of sedaxane.
Example 3
The raw materials comprise: 7% of prothioconazole, 13% of fludioxonil, 40% of sedaxane, 4% of eucalyptus oil, 2% of film forming agent, 4% of dispersing agent, 3% of wetting agent and the balance of filling. The materials are uniformly mixed in a mixing and stirring kettle according to the corresponding proportion to prepare the dry seed dressing agent of 7 percent of prothioconazole, 13 percent of fludioxonil and 40 percent of sedaxane.
Comparative example 1
5% Prothioconazole suspension seed coating agent (Liyang Zhongnan chemical Co., Ltd.)
Comparative example 2
10% fludioxonil suspension seed coating (Xianzhengda)
1. Experimental Material
The wheat variety to be tested was nineteen of nicotiana (hongze lake farm species ltd., Jiangsu province).
2. Experimental methods
2.1 design of the experiment
A total of 3 treatments were set. Treatment 1: uncoated, as a blank control; and (3) treatment 2: example 1-example 6 agents were applied to seeds for coating treatment; and (3) treatment: comparative example 1-comparative example 3 the agents were applied to the seeds for coating.
Random block arrangement is adopted, 3 times of repetition are carried out, and the area of a cell is 2m2. The number of seeds in each group is equal.
2.2 survey items
And (3) investigating the withering and death rate, the withering rate of the non-necrotic seedlings and the dwarfing inhibition rate at the seedling stage of the wheat.
The control effect (%) of root rot in seedling stage is [ (seedling withering rate in control field-seed coating agent treated seedling withering rate)/seedling withering rate in control field ]. times.100
Dwarfing inhibition (%) of [ ("average plant height in control field-average plant height treated with seed coating)/average plant height in control field ] × 100
And (5) investigating the incidence rate of root rot in the adult wheat growing period. The disease degree of 4 diseases of wheat small spot, leaf spot, brown spot and rust disease is graded and investigated.
Incidence (%) × 100 (number of diseased plants/total number of investigated plants) ×
Disease index [ Σ (number of diseased plants at each stage × representative value at each stage)/(total number of investigated plants × highest representative value) ] × 100
Disease control effect (%) in adult stage ═ control incidence (disease index) — (incidence of disease in control treatment of seed coating agent)/control incidence of disease (disease index) × 100
3. Results and analysis of the experiments
TABLE 1 Effect of different seed dressings on wheat growth at the seedling stage
The results of the above experiments show that the wheat seedling withering rate of 3 kinds of compound seed-dressing agents is less than that of a blank control, the root rot prevention effect of the 3 kinds of compound seed-dressing agents is more than 9%, wherein the effective component contents of 5% prothioconazole, 10% fludioxonil, 35% fluopyram dry seed-dressing agent and 7% prothioconazole, 13% fludioxonil, 40% bispyribac dry seed-dressing agent are increased, but the seedling withering rate, the root rot prevention effect and the dwarfing inhibition rate are not obvious.
Table 2 shows the control effect of different seed coating treatments on wheat root rot
As can be seen from Table 2, the incidence of the wheat treated by the 3 compound seed dressings is lower than that of the blank control and the comparative example, the prevention effect of the compound seed dressing on root rot is more than 69%, and the effect is good.
In order to verify the pest control effect of the compound seed dressing agent, summer corns were subjected to field experiments, treated according to examples 1-3 and comparative examples 1-2, and a blank control group, each treatment was repeated three times, and the test was continued for 3 years, and the germination rate was investigated 30 days after sowing.
Table 3 shows the effect on the germination rate of maize
| Serial number | Medicament | Germination percentage (%) |
| 1 | 2% prothioconazole, 4% fludioxonil and 15% sedaxane dry seed dressing agent | 92.58 |
| 2 | 5% prothioconazole, 10% fludioxonil, 35% fluopyram dry seed-dressing agent | 92.99 |
| 3 | 7% prothioconazole, 13% fludioxonil, 40% bixafen dry seed dressing agent | 93.04 |
| 4 | 5% prothioconazole suspension seed coating agent | 87.21 |
| 5 | 10% fludioxonil suspension seed coating agent | 86.37 |
| 6 | Blank control | 82.47 |
As can be seen from Table 3, after the corn seeds are treated by the compound seed dressing agent of the examples 1 to 3, the germination rate of the corn seeds is obviously improved due to the driving off of underground pests by the pungent odor generated by the addition of eucalyptus oil, and the germination rate is not obviously improved along with the increase of the content of the active ingredients, so that the optimal content of 2% prothioconazole, 4% fludioxonil and 15% sedaxane is the best content.
Claims (7)
1. A ternary complex seed dressing agent containing prothioconazole and fludioxonil is characterized in that: the ternary compound seed dressing agent comprises an effective component A, B, C, wherein A is prothioconazole, B is fludioxonil, C is one of sedaxane, fluopyram and bixafen, the content of A is 0.2% -15%, the content of B is 0.5% -15%, and the content of C is 1% -45%.
2. The ternary complex seed dressing agent containing prothioconazole and fludioxonil according to claim 1, which is characterized in that: and C is sedaxane.
3. The ternary complex seed dressing agent containing prothioconazole and fludioxonil according to claim 1, which is characterized in that: the content of A is 5%, the content of B is 10% and the content of C is 35%.
4. The ternary complex seed dressing agent containing prothioconazole and fludioxonil according to claim 1, which is characterized in that: the formulation of the ternary complex seed dressing agent is one of a suspended seed coating agent, a seed treatment suspending agent, a microcapsule suspending agent and a dry seed dressing agent.
5. The ternary complex seed dressing agent containing prothioconazole and fludioxonil according to claim 1, which is characterized in that: the dosage form of the ternary complex seed dressing agent is a dry seed dressing agent.
6. The ternary complex seed dressing agent containing prothioconazole and fludioxonil according to claim 5, wherein the weight percentage of the seed dressing agent is as follows: the dry seed dressing agent contains A, B, C, eucalyptus oil, a wetting agent, a dispersing agent, a film forming agent and a filler.
7. The ternary complex seed dressing agent containing prothioconazole and fludioxonil according to claim 6, wherein the weight percentage of the seed dressing agent is as follows: the eucalyptus oil content is 3% -5%, the wetting agent content is 3% -6%, the dispersing agent content is 2.5% -7%, the film-forming agent content is 1% -4%, and the balance is made up to 100% by the filler.
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