CN108990992B - Sterilization composition containing pyraoxystrobin and mancozeb - Google Patents
Sterilization composition containing pyraoxystrobin and mancozeb Download PDFInfo
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- CN108990992B CN108990992B CN201810578136.9A CN201810578136A CN108990992B CN 108990992 B CN108990992 B CN 108990992B CN 201810578136 A CN201810578136 A CN 201810578136A CN 108990992 B CN108990992 B CN 108990992B
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- mancozeb
- fluxapyroxad
- ear rot
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- 239000005802 Mancozeb Substances 0.000 title claims abstract description 36
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- URXNNPCNKVAQRA-XMHGGMMESA-N pyraoxystrobin Chemical compound CO\C=C(\C(=O)OC)C1=CC=CC=C1COC1=CC(C=2C=CC(Cl)=CC=2)=NN1C URXNNPCNKVAQRA-XMHGGMMESA-N 0.000 title claims description 3
- 230000001954 sterilising effect Effects 0.000 title abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 title abstract description 5
- 239000005788 Fluxapyroxad Substances 0.000 claims abstract description 24
- SXSGXWCSHSVPGB-UHFFFAOYSA-N fluxapyroxad Chemical compound FC(F)C1=NN(C)C=C1C(=O)NC1=CC=CC=C1C1=CC(F)=C(F)C(F)=C1 SXSGXWCSHSVPGB-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 14
- 240000008042 Zea mays Species 0.000 claims description 26
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 26
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 21
- 235000005822 corn Nutrition 0.000 claims description 21
- 239000000575 pesticide Substances 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 11
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims description 7
- RFHAOTPXVQNOHP-UHFFFAOYSA-N fluconazole Chemical compound C1=NC=NN1CC(C=1C(=CC(F)=CC=1)F)(O)CN1C=NC=N1 RFHAOTPXVQNOHP-UHFFFAOYSA-N 0.000 claims description 6
- 229960004884 fluconazole Drugs 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 239000004530 micro-emulsion Substances 0.000 claims description 3
- 239000004562 water dispersible granule Substances 0.000 claims description 3
- 239000004563 wettable powder Substances 0.000 claims description 3
- 239000002552 dosage form Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000375 suspending agent Substances 0.000 claims description 2
- 125000002252 acyl group Chemical group 0.000 claims 1
- 244000052616 bacterial pathogen Species 0.000 abstract description 7
- 239000003899 bactericide agent Substances 0.000 abstract description 4
- 206010059866 Drug resistance Diseases 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 201000010099 disease Diseases 0.000 description 17
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 17
- 239000003814 drug Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000011282 treatment Methods 0.000 description 8
- 230000001018 virulence Effects 0.000 description 7
- 230000002195 synergetic effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 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 5
- 241000223218 Fusarium Species 0.000 description 5
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 5
- 235000009973 maize Nutrition 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 241000223195 Fusarium graminearum Species 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000001963 growth medium Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 239000003053 toxin Substances 0.000 description 2
- 231100000765 toxin Toxicity 0.000 description 2
- 108700012359 toxins Proteins 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 241000228212 Aspergillus Species 0.000 description 1
- 241000123650 Botrytis cinerea Species 0.000 description 1
- 241000222290 Cladosporium Species 0.000 description 1
- 241000186216 Corynebacterium Species 0.000 description 1
- 240000008067 Cucumis sativus Species 0.000 description 1
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 1
- 229940124186 Dehydrogenase inhibitor Drugs 0.000 description 1
- 241000221785 Erysiphales Species 0.000 description 1
- 241000233732 Fusarium verticillioides Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000592238 Juniperus communis Species 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 241000220225 Malus Species 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- UVPSSGJTBLNVRE-UHFFFAOYSA-N Moniliformin Natural products O=C1C(OC)=CC(=O)C=2C1=C1C(=O)C(OC)=CC(=O)C1=CC=2 UVPSSGJTBLNVRE-UHFFFAOYSA-N 0.000 description 1
- 208000031888 Mycoses Diseases 0.000 description 1
- UKOTXHQERFPCBU-YQPARWETSA-N Nivalenol Chemical compound C([C@]12[C@@]3([C@H](O)[C@@H](O)[C@H]1O[C@@H]1C=C(C([C@@H](O)[C@@]13CO)=O)C)C)O2 UKOTXHQERFPCBU-YQPARWETSA-N 0.000 description 1
- ITCSWEBPTQLQKN-UHFFFAOYSA-N Nivalenol Natural products CC1=CC2OC3C(O)C(O)C(C2(CO)CC1=O)C34CO4 ITCSWEBPTQLQKN-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000228143 Penicillium Species 0.000 description 1
- 239000005605 Pyraflufen-ethyl Substances 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 240000001987 Pyrus communis Species 0.000 description 1
- 241000221696 Sclerotinia sclerotiorum Species 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 102000019259 Succinate Dehydrogenase Human genes 0.000 description 1
- 108010012901 Succinate Dehydrogenase Proteins 0.000 description 1
- BXFOFFBJRFZBQZ-QYWOHJEZSA-N T-2 toxin Chemical compound C([C@@]12[C@]3(C)[C@H](OC(C)=O)[C@@H](O)[C@H]1O[C@H]1[C@]3(COC(C)=O)C[C@@H](C(=C1)C)OC(=O)CC(C)C)O2 BXFOFFBJRFZBQZ-QYWOHJEZSA-N 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- -1 antifreezes Substances 0.000 description 1
- 244000000005 bacterial plant pathogen Species 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- LINOMUASTDIRTM-QGRHZQQGSA-N deoxynivalenol Chemical compound C([C@@]12[C@@]3(C[C@@H](O)[C@H]1O[C@@H]1C=C(C([C@@H](O)[C@@]13CO)=O)C)C)O2 LINOMUASTDIRTM-QGRHZQQGSA-N 0.000 description 1
- 229930002954 deoxynivalenol Natural products 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003008 fumonisin Substances 0.000 description 1
- 244000053095 fungal pathogen Species 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- KGPQKNJSZNXOPV-UHFFFAOYSA-N moniliformin Chemical compound OC1=CC(=O)C1=O KGPQKNJSZNXOPV-UHFFFAOYSA-N 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical group C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000033 toxigenic Toxicity 0.000 description 1
- 230000001551 toxigenic effect Effects 0.000 description 1
- MBMQEIFVQACCCH-UHFFFAOYSA-N trans-Zearalenon Natural products O=C1OC(C)CCCC(=O)CCCC=CC2=CC(O)=CC(O)=C21 MBMQEIFVQACCCH-UHFFFAOYSA-N 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- LINOMUASTDIRTM-UHFFFAOYSA-N vomitoxin hydrate Natural products OCC12C(O)C(=O)C(C)=CC1OC1C(O)CC2(C)C11CO1 LINOMUASTDIRTM-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- MBMQEIFVQACCCH-QBODLPLBSA-N zearalenone Chemical compound O=C1O[C@@H](C)CCCC(=O)CCC\C=C\C2=CC(O)=CC(O)=C21 MBMQEIFVQACCCH-QBODLPLBSA-N 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
- A01N43/48—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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
- A01N47/14—Di-thio analogues thereof
Landscapes
- 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 discloses a sterilization composition containing fluxapyroxad and mancozeb, wherein the weight ratio of the fluxapyroxad to the mancozeb is 1:40-40: 1. The bactericide composition has the advantages of high efficiency, small environmental pollution, delay of the generation of drug resistance of pathogenic bacteria and the like.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a bactericidal composition containing fluxapyroxad and mancozeb.
Background
The maize ear rot is also called maize ear rot and is a worldwide disease, and is reported by all maize producing countries, the incidence rate is generally 5% -10%, the incidence rate of susceptible varieties can reach 50%, and the yield loss is as high as 40%. The pathogenic bacteria causing the corn ear rot comprise more than 20 pathogenic fungi such as fusarium graminearum, fusarium moniliforme, fusarium laminarinum, penicillium, aspergillus, cladosporium and the like. The fusarium-induced ear rot can cause a large amount of grain pollution due to fusarium production and the like, and threatens the health of human beings and animals.
The corn ear rot occurs in the later growth period and the post-harvest storage period of the corn and has a tendency of becoming more serious day by day, each part of the damaged ears including seeds, bracts and cobs can be infected with diseases, pathogenic bacteria are mainly infected through the wounds of the filaments and the seeds, and some pathogenic bacteria can be transmitted to the cobs from roots or stems through the dredging tissues. Corn ear rot not only causes the loss of grain yield, but also some toxigenic strains can produce various toxins, such as moniliformin, fusarium C, fumonisin, zearalenone, deoxynivalenol, nivalenol, T-2 toxin and the like, and the corn containing the toxins can enter food chains of people and animals through food and feed processing links and directly threaten the health of people and animals.
The pyraflufen-fluoride is a succinate dehydrogenase inhibitor bactericide developed by Juniperus communis GmbH. The bactericidal composition is suitable for various crops, has the highest activity on leaf spot and powdery mildew, and has high efficiency on diseases which are difficult to control in agriculture, such as diseases caused by pathogenic bacteria of botrytis cinerea, sclerotinia sclerotiorum, corynebacterium and the like. The fluconazole hydroxylamine also can prevent and control diseases caused by fusarium on grains in a breakthrough manner.
Mancozeb is a broad-spectrum efficient bactericide and can prevent and treat diseases of various crops, vegetables and fruit trees, such as cucumber, peanut, potato, rice, tomato, grape, pear, apple, corn and other crops. Is one of the most widely used protective bactericides in agricultural production. Some diseases have developed resistance to mancozeb due to years of use.
The corn ear rot is extremely harmful to the corn yield and the food safety, so a compound medicament for effectively preventing and treating the corn ear rot needs to be screened out. The synergistic bactericidal composition can greatly improve the control effect, reduce the dosage and reduce the cost, and simultaneously can avoid the generation of resistance of plant pathogenic bacteria and delay the generation speed of the resistance. Therefore, the development of the bactericidal composition with the synergistic effect on fungal diseases is of great significance. Related reports of compounding of pyraflufen-ethyl and mancozeb are not found in the prior art.
Disclosure of Invention
The invention aims to provide an agricultural bactericidal composition which has reasonable components, obvious synergistic effect, good bactericidal effect, low medication cost, difficult generation of drug resistance and safety to crops. The technical scheme provided by the invention is as follows:
the bactericidal composition containing the fluxapyroxad and the mancozeb is compounded by the active ingredients of the fluxapyroxad and the mancozeb.
Preferably, the weight ratio of the fluxapyroxad to the mancozeb is 1:40-40: 1.
Preferably, the weight ratio of the fluxapyroxad to the mancozeb is 1:10-10: 1.
The invention also provides a pesticide preparation containing the bactericidal composition, wherein the weight of the fluxapyroxad and the mancozeb accounts for 5-90% of the total weight of the pesticide preparation, and the balance is an auxiliary agent, a solvent or a filler acceptable in pesticides.
Preferably, the weight of the fluxapyroxad and the mancozeb accounts for 20-50% of the total weight of the pesticide preparation, and the balance is an auxiliary agent, a solvent or a filler acceptable in pesticides.
Preferably, the pesticide preparation is in the dosage form of wettable powder, water dispersible granules, suspending agents, microemulsions, powder, granules or aqueous emulsion and the like.
The adjuvants used in the pesticide preparation of the present invention include solvents, dispersants, emulsifiers, stabilizers, antifreezes, film formers, wetting agents, and the like, and other known substances useful for stabilizing the active ingredients in the preparation and exerting the medicinal effects, are various ingredients commonly used or allowed to be used in the pesticide preparation, are not particularly limited, and the specific ingredients and amounts thereof are determined by simple experiments according to the formulation requirements.
The bactericidal composition disclosed by the invention is applied to prevention and treatment of various diseases on crops, and is particularly suitable for prevention and treatment of corn ear rot. The compositions of the invention can also be applied in the usual manner, for example by pouring, spraying, spreading, the application rate varying with weather conditions or crop conditions.
Compared with the prior art, the invention has the following beneficial effects:
the components of the invention have reasonable sterilization effect and low medication cost, and the activity and the sterilization effect of the invention are not the simple superposition of the activities of the components, but have obvious synergy, thereby having good safety to crops and meeting the safety requirement of pesticide preparations. The invention has good control effect on the corn ear rot of crops.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in conjunction with examples, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Example 1 indoor virulence determination of Fluxapyroxad and mancozeb paired maize ear rot
Test subjects: corn ear rot (which is obtained by separating fresh diseased ears from threshing and is identified as fusarium graminearum (f.)));
the test method comprises the following steps: measured by growth rate method. Firstly, test medicaments are prepared into liquid medicaments with different concentrations according to design requirements and are uniformly mixed with a PDA culture medium, then the liquid medicaments are poured into a glass culture dish with the diameter of 90mm, 3 times of repetition are set for each medicament concentration, and a PDA flat plate added with the same volume of sterile water is used as a control group. Under the aseptic condition, preparing a bacterium dish with the diameter of 8mm by using an aseptic puncher, clamping the hypha surface of the bacterium dish by using aseptic tweezers, putting the bacterium dish into the culture dish which is cooled and solidified, culturing the bacterium in a mould incubator at the temperature of 25 ℃ for 5 days at constant temperature, measuring the colony diameter of the tested pathogenic bacterium on culture media containing different medicaments and different concentrations by adopting a cross method, and calculating the bacteriostatic effect. And establishing a virulence regression equation by using a least square method, and calculating the EC50 of each medicament on pathogenic bacteria. The co-toxicity coefficient (CTC) was then calculated by the Sun Yunpei method.
When the CTC is less than or equal to 80, the composition shows antagonism, when the CTC is more than 80 and less than 120, the composition shows additive action, and when the CTC is more than or equal to 120, the composition shows synergistic action.
Measured virulence index (ATI) ═ standard agent EC 50/test agent EC50 x 100
Theoretical virulence index (TTI) ═ A agent virulence index x percent of A in the mixture + B agent virulence index x percent of B in the mixture
Co-toxicity coefficient (CTC) × 100 [ measured toxicity index (ATI) of the mixture)/Theoretical Toxicity Index (TTI) of the mixture ].
TABLE 1 virulence determination of Fluxapyroxad and Mancozeb on maize ear rot
As can be seen from the table above, the weight ratio of the fluxapyroxad to the mancozeb is in the range of 1:40-40:1, so that the synergistic effect on the corn ear rot is achieved, and the prevention and treatment effect on the corn ear rot is improved. Preferably, the weight ratio of the fluxapyroxad to the mancozeb is 1:10-10: 1.
Example 2 field control of Fluxapyroxad and Mancozeb on corn ear rot
Test subjects: corn ear rot;
test agents: agent 1: 20% of fluxapyroxad hydroxylamine-mancozeb wettable powder (fluxapyroxad hydroxylamine: mancozeb 1: 1); medicament 2: 35% of fluconazole hydroxylamine-mancozeb water dispersible granules (fluconazole hydroxylamine: mancozeb 1: 6); agent 3: 55% of fluxapyroxad hydroxylamine mancozeb granules (fluxapyroxad hydroxylamine: mancozeb 10: 1); agent 3: a 60% fluconazole hydroxylamine-mancozeb microemulsion (fluconazole hydroxylamine: mancozeb ═ 1: 2);
the test method comprises the following steps: in the field test, the area of each cell is 50m2, each treatment is repeated for 3 times, the same amount of clear water is sprayed in a blank control, and the treatments and the repetitions are randomly arranged; the ear part spraying treatment is carried out in the corn tasseling and spinning period, and the pesticide is continuously applied for 3 times at intervals of 7 d. And (4) investigating the total spike number, the number of the pathogenic spikes and the pathogenic level in each cell, calculating the disease index, and calculating the prevention and treatment effect according to the disease index of each medicament treatment and the disease index of a blank control group. The results of the experiment are shown in table 2.
Grading the disease condition standard:
grade 0, incidence rate is 0;
the disease incidence area accounts for less than 1% of the total area of the fruit cluster;
grade 3, the disease area accounts for 2 to 10 percent of the total area of the clusters;
grade 5, the disease area accounts for 11 to 25 percent of the total area of the cluster;
7, the disease incidence area accounts for 26 to 50 percent of the total area of the clusters;
grade 9, the disease area accounts for 51-100% of the total area of the cluster.
TABLE 2 field control of corn ear rot by Oxazapyr and Mancozeb
From the above table, compared with a single agent, the combination of the fluxapyroxad and the mancozeb can obviously improve the control effect of the fluxapyroxad and the mancozeb on the corn ear rot, and the synergistic effect is shown; and field observation shows that the fertilizer is safe to corn crops.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (5)
1. The application of the bactericidal composition containing the pyraoxystrobin and the mancozeb in preventing and treating the corn ear rot is characterized in that: which is compounded by the effective components of the fluconazole acyl hydroxylamine and mancozeb; the weight ratio of the fluxapyroxad to the mancozeb is 1:40-40: 1.
2. Use according to claim 1, characterized in that: the weight ratio of the fluxapyroxad to the mancozeb is 1:10-10: 1.
3. Use according to claim 1, characterized in that: the weight of the fluxapyroxad and the mancozeb accounts for 5-90% of the total weight of the pesticide preparation, and the balance is an auxiliary agent acceptable in pesticides.
4. Use according to claim 3, characterized in that: the weight of the fluxapyroxad and the mancozeb accounts for 20-50% of the total weight of the pesticide preparation, and the balance is an auxiliary agent acceptable in pesticides.
5. Use according to claim 3, characterized in that: the pesticide preparation is in the dosage form of wettable powder, water dispersible granules, suspending agents, powder, microemulsion, granules or aqueous emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810578136.9A CN108990992B (en) | 2018-06-07 | 2018-06-07 | Sterilization composition containing pyraoxystrobin and mancozeb |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810578136.9A CN108990992B (en) | 2018-06-07 | 2018-06-07 | Sterilization composition containing pyraoxystrobin and mancozeb |
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| Publication Number | Publication Date |
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| CN108990992A CN108990992A (en) | 2018-12-14 |
| CN108990992B true CN108990992B (en) | 2021-05-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| WO2012041874A1 (en) * | 2010-10-01 | 2012-04-05 | Syngenta Participations Ag | Fungicidal compositions |
| CN103385244A (en) * | 2012-05-08 | 2013-11-13 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition comprising fluxapyroxad and thiocarbamate |
| CN104486949A (en) * | 2012-07-26 | 2015-04-01 | 先正达参股股份有限公司 | Fungicidal compositions |
| CN107251900A (en) * | 2017-06-28 | 2017-10-17 | 江苏丘陵地区镇江农业科学研究所 | A kind of composition pesticide and its application of fluorine-containing azoles bacterium acyl azanol and Prochloraz |
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| WO2012041874A1 (en) * | 2010-10-01 | 2012-04-05 | Syngenta Participations Ag | Fungicidal compositions |
| CN103385244A (en) * | 2012-05-08 | 2013-11-13 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition comprising fluxapyroxad and thiocarbamate |
| CN104486949A (en) * | 2012-07-26 | 2015-04-01 | 先正达参股股份有限公司 | Fungicidal compositions |
| CN107251900A (en) * | 2017-06-28 | 2017-10-17 | 江苏丘陵地区镇江农业科学研究所 | A kind of composition pesticide and its application of fluorine-containing azoles bacterium acyl azanol and Prochloraz |
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