CN107711846A - A kind of method for preventing and treating rice blast - Google Patents
A kind of method for preventing and treating rice blast Download PDFInfo
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- CN107711846A CN107711846A CN201711082029.9A CN201711082029A CN107711846A CN 107711846 A CN107711846 A CN 107711846A CN 201711082029 A CN201711082029 A CN 201711082029A CN 107711846 A CN107711846 A CN 107711846A
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- fluopyram
- isoprothiolane
- rice blast
- preventing
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 28
- 235000009566 rice Nutrition 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 24
- 240000007594 Oryza sativa Species 0.000 title 1
- 239000005783 Fluopyram Substances 0.000 claims abstract description 36
- 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 36
- UFHLMYOGRXOCSL-UHFFFAOYSA-N isoprothiolane Chemical compound CC(C)OC(=O)C(C(=O)OC(C)C)=C1SCCS1 UFHLMYOGRXOCSL-UHFFFAOYSA-N 0.000 claims abstract description 33
- 241000209094 Oryza Species 0.000 claims abstract description 32
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 230000000361 pesticidal effect Effects 0.000 claims abstract description 5
- 239000003814 drug Substances 0.000 claims description 18
- 239000000375 suspending agent Substances 0.000 claims description 9
- 239000004563 wettable powder Substances 0.000 claims description 5
- 229940079593 drug Drugs 0.000 claims description 4
- 241000607479 Yersinia pestis Species 0.000 claims description 2
- 239000000575 pesticide Substances 0.000 abstract description 6
- 230000002195 synergetic effect Effects 0.000 abstract description 6
- 230000000857 drug effect Effects 0.000 abstract description 3
- 230000009931 harmful effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 13
- 238000012360 testing method Methods 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 230000002265 prevention Effects 0.000 description 10
- 231100000419 toxicity Toxicity 0.000 description 9
- 230000001988 toxicity Effects 0.000 description 9
- 201000010099 disease Diseases 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000080 wetting agent Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 239000003899 bactericide agent Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 150000007942 carboxylates Chemical class 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 229920001285 xanthan gum Polymers 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000008485 antagonism Effects 0.000 description 2
- 229940077388 benzenesulfonate Drugs 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009036 growth inhibition Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001018 virulence Effects 0.000 description 2
- LYCAIKOWRPUZTN-NMQOAUCRSA-N 1,2-dideuteriooxyethane Chemical compound [2H]OCCO[2H] LYCAIKOWRPUZTN-NMQOAUCRSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 241000221785 Erysiphales Species 0.000 description 1
- 208000015220 Febrile disease Diseases 0.000 description 1
- 241000158728 Meliaceae Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 102000019259 Succinate Dehydrogenase Human genes 0.000 description 1
- 108010012901 Succinate Dehydrogenase Proteins 0.000 description 1
- WHDHEVMINMZADQ-UHFFFAOYSA-N [F].N1C=CC=C1 Chemical compound [F].N1C=CC=C1 WHDHEVMINMZADQ-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000037356 lipid metabolism Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000008811 mitochondrial respiratory chain Effects 0.000 description 1
- SDIDYFBTIZOPLA-UHFFFAOYSA-N n-ethylbenzamide Chemical compound CCNC(=O)C1=CC=CC=C1 SDIDYFBTIZOPLA-UHFFFAOYSA-N 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000002023 wood 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
- A01N43/34—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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
-
- 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
- A01N43/24—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 two or more hetero atoms
- A01N43/26—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 two or more hetero atoms five-membered rings
- A01N43/28—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 two or more hetero atoms five-membered rings with two hetero atoms in positions 1,3
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of method for preventing and treating rice blast, and pesticidal preparations of the active component for fluopyram and Isoprothiolane are mixed, are uniformly sprayed on after being watered on rice plant, is defined by blade moistening；Described fluopyram and the weight ratio of Isoprothiolane are 10:1~1:10.Synergistic of the present invention is notable, can greatly improve drug effect, can reduce effective ingredient consumption, so as to reduce harmful effect and the residues of pesticides to environment, is advantageous to the drug-fast improvement of germ.
Description
Technical field
The present invention relates to agriculture applied technology field, specifically a kind of method for preventing and treating rice blast.
Background technology
In this year, due to single drug and not Scientific Usage of Drugs, does not cause many diseases to generate currently used agricultural chemicals anti-
Property, such as rice blast, turn into a great problem of chemical prevention.In addition rice blast biological strain is a lot, more increases preventing and treating
Difficulty.Meanwhile frequent dispenser causes peasant burden exacerbation and increasing environmental pollution again.Therefore, a kind of energy effectively preventing rice
The method of rice blast, it can effectively control disease and be advantageous to the resistance management of germ.
Fluopyram, English name：Fluopyram, it is the new pyridine base ethyl benzamide of Beyer Co., Ltd's exploitation
Series bactericidal agent, mitochondrial respiratory chain is acted on, suppresses the activity of succinate dehydrogenase (complexⅱ) so as to block electron transmission,
Cause the energy requirement that body tissue can not be provided, and then kill controlling object or suppress it and grow.Fluopyram is
The efficient medicament of powdery mildew, sclerotiniose etc. is prevented and treated, but cost height is used alone and has the risk for producing resistance.
Isoprothiolane, English name：Isoprothiolane, it is a kind of systemic fungicide, after rice plant absorbs medicament
Leaf texture is accumulated on, cob is specifically focused on and obstructs with branch, so as to suppress germ intrusion, germ lipid-metabolism is hindered, suppresses germ
Growth, plays prevention and treatment, there is preferable prevention effect to rice blast.
In agricultural production, compounded by different cultivars composition, be to prevent and treat the very common method of resistance disease.It is different
The pesticide species mixture of composition, according to practical application effect, to judge that certain mixture is synergy plus and or antagonism.Absolutely
In most cases, the mixture effect of agricultural chemicals is all additive effect, really has the mixture of synergistic effect seldom.
Studied by inventor, find mutually to compound fluopyram and Isoprothiolane, within the specific limits to rice blast
Have a good synergistic effect, and about fluopyram composite usage related to Isoprothiolane in rice blast research there is not yet phase
Close report.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of synergy significantly, high-efficiency low-toxicity, mu cost is low, favorably
In a kind of method of preventing and treating rice blast of the germ comprehensive regulation.
The technical solution used in the present invention is：A kind of method for preventing and treating rice blast, is fluorine pyrrole bacterium by active component
The pesticidal preparations of acid amides and Isoprothiolane mix, and are uniformly sprayed on after being watered on rice plant, are defined by blade moistening；It is described
Fluopyram and Isoprothiolane weight ratio be 10:1~1:10, it is preferred that fluopyram and the weight of Isoprothiolane ratio are
5：1~1：2.
Further, fluopyram and the weight of Isoprothiolane ratio are 2：1.
Described pesticidal preparations, the percentage by weight of fluopyram is 4-40%, and the percentage by weight of Isoprothiolane is 4-
40%.
The method that described pesticidal preparations are known to the skilled person is prepared into suspending agent or wettable powder.
The advantages and positive effects of the present invention are：The active ingredient mechanism of action of preparation prepared by this method is different,
There is obvious synergistic function than mixture with certain weight, drug effect can be greatly improved, reduce effective ingredient consumption, so as to
Reduce the harmful effect to environment and residues of pesticides, be advantageous to the drug-fast improvement of germ.
Embodiment
Technical scheme and technique effect are described further below by way of specific embodiment, institute of the present invention
The percentage stated is weight percentage.
First, indoor biometricses are tested
Embodiment 1:The Toxicity Determination of fluopyram, Isoprothiolane and mixture to rice blast
After prerun determines the effective inhibition concentration scope of each medicament, by active constituent content, gradient sets 5 to each medicament respectively
Individual dosage processing, if clear water compares.Reference《Farm-chemical indoor determination test rule bactericide》Carry out, using mycelial growth speed
Rate method determines virulence of the medicament to rice blast.Colony diameter is measured with crossing method after 72h, calculates the net growth of each processing
Amount, mycelial growth inhibition rate.
Mycelial growth inhibition rate is converted into probit value (y), liquor strength (μ g/mL) is converted into logarithm value (x), with minimum
Square law tries to achieve virulence regression equation (y=a+bx), and thus calculates the EC of every kind of medicament50Value, medicine is calculated according to the abundant methods of Sun Yun
The toxicity index and co-toxicity coefficient (CTC) of agent.
Survey toxicity index (ATI)=(standard agent EC50/ reagent agent EC50)×100
A percentage composition+B medicament toxicity index in theoretical toxicity index (TTI)=A medicament toxicity index × mixture × mixed
B percentage composition in agent
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100
When CTC≤80, then composition shows as antagonism, and as 80 ＜ CTC ＜ 120, then composition shows as being added and made
With when CTC >=120, then composition shows as synergistic effect.
Statistical result is shown in Table 1.
The Toxicity Determination of the fluopyram of table 1, Isoprothiolane and its mixture to rice blast
| Reagent agent | Proportioning | EC50(μg/mL) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Fluopyram (A) | / | 8.21 | 62.66 | / | / |
| Isoprothiolane (B) | / | 5.14 | 100.00 | / | / |
| A：B | 10:1 | 5.68 | 90.55 | 66.05 | 137.1 |
| A：B | 8:1 | 4.67 | 110.22 | 66.81 | 165.0 |
| A：B | 5:1 | 3.99 | 128.81 | 68.88 | 187.0 |
| A：B | 2:1 | 3.36 | 153.05 | 75.11 | 203.8 |
| A：B | 1:1 | 3.24 | 158.93 | 81.33 | 195.4 |
| A：B | 1:2 | 3.38 | 152.15 | 87.55 | 173.8 |
| A：B | 1:5 | 4.04 | 127.42 | 93.78 | 135.9 |
| A：B | 1:8 | 4.18 | 123.06 | 95.85 | 128.4 |
| A：B | 1:10 | 3.72 | 138.32 | 96.61 | 143.2 |
| A：B | 1:20 | 6.69 | 76.90 | 98.22 | 78.3 |
Measurement result shows, when fluopyram and the proportioning of Isoprothiolane are 10:1~1:When 10, co-toxicity coefficient (CTC) is equal
More than 120, wherein with proportioning for 2:1 co-toxicity coefficient is up to 203.8, and synergy is notable, well should have in field test
With value.
2nd, embodiment is prepared
Embodiment 1：15% fluopyram Isoprothiolane suspending agent
Formula：Fluopyram 10%, Isoprothiolane 5%, alkyl naphthyl sulfonate 3.5% (wetting agent), poly- is weighed according to quantity
Carboxylate 3.2% (dispersant), xanthans 0.2% (thickener), ethylene glycol 2% (antifreezing agent), 0.2% silicone oil (defoamer),
Deionized water is mended to 100%.
Embodiment 2：25% fluopyram Isoprothiolane suspending agent
Formula：Fluopyram 15%, Isoprothiolane 10%, alkyl benzene sulfonate calcium salt 2.5% (wetting agent), poly- is weighed according to quantity
Carboxylate 5% (dispersant), xanthans 0.5% (thickener), propane diols 2.5% (antifreezing agent), silicone oil 0.3% (defoamer),
Deionized water is mended to 100%.
Embodiment 3：45% fluopyram Isoprothiolane suspending agent
Formula：Fluopyram 40%, Isoprothiolane 5%, alkyl naphthyl sulfonate 4.5% (wetting agent), poly- is weighed according to quantity
Carboxylate 5% (dispersant), xanthans 0.5% (thickener), polyethylene glycol 2.5% (antifreezing agent), (defoaming of silicone oil 0.2%
Agent), deionized water mended to 100%.
Above-described embodiment 1-3 is prepared in accordance with the following methods：By recipe requirements, described component is well mixed, by grinding
The composition of containing fluopyram Isoprothiolane is made in mill and high speed shear, and formulation is suspending agent.
Embodiment 4：24% fluopyram Isoprothiolane wettable powder.
Formula：Fluopyram 4.0%, Isoprothiolane 20%, alkyl benzene sulfonate calcium salt 3% (dispersant), wood are weighed according to quantity
Mahogany sulfonate 5% (wetting agent), white carbon 10% (filler), concave convex rod (filler) complement to 100%.
Embodiment 5：45% fluopyram Isoprothiolane wettable powder.
Formula：Fluopyram 5%, Isoprothiolane 40%, polycarboxylate 5.0% (dispersant), dodecyl are weighed according to quantity
Sodium sulphate 4.5% (wetting agent), white carbon 10% (filler), kaolin (filler) complement to 100%.
Above-described embodiment 4-5 is prepared in accordance with the following methods：By recipe requirements, described component is well mixed, through air-flow
Pulverizer crushes, and can be prepared by the wettable powder of containing fluopyram Isoprothiolane.
3rd, field test embodiment
Embodiment 1:Prepare the field test of the preparation preventing and treating rice blast of the gained of embodiment 1
Experiment is with reference to GB/T 17980.19-2000《Pesticide field efficacy medicine test criterion (one) bactericidal agent for preventing and treating rice leaf portion
Disease》
Test process：To prepare the gained preparation of embodiment 1 (15% fluopyram Isoprothiolane suspending agent) as test group
1#, dosage are 45g/ mus；Using 20% fluopyram suspending agent as control group 1#, dosage is 45g/ mus；With 20% rice blast
Clever suspending agent is control group 2#, and dosage is 45g/ mus；One blank control (CK) is set simultaneously, and plot area is 50 ㎡, 4 weights
It is multiple.
Experiment and investigation method：In rice plant of tillering stage, rice blast early stage dispenser, dispenser 1 time again in 7 days after medicine, altogether
Twice, each cell is watered even spraying by the water consumption for 45 kgs/acre, using rice leaf moistening as standard for medication.Respectively at
14d carries out disease index investigation after 7d, last medicine before medicine, after last medicine, calculates preventive effect.
Result of the test：7 days after last dispenser, test group 1# prevention effect is 94.6%, control group 1# prevention effect
For 72.8%, control group 2# prevention effect is 78.6%, and test group 1# preventive effect is more excellent than control group 1#, control group 2# respectively
More than 15%；14 days after last dispenser, test group 1# prevention effect is 89.5%, and control group 1# prevention effect is
68.7%, control group 2# prevention effect are 76.5%, and test group 1# preventive effect is more excellent than control group 1# and control group 2# respectively
More than 10%, it can effectively control the development of rice blast.
This explanation, this method prevent and treat rice by being used for the preparation of fluopyram and Isoprothiolane active ingredient rational mixture
Seasonal febrile diseases, drug effect can be greatly improved, effectively reduce Pesticide use amount, reduced pesticide cost, be advantageous to the comprehensive regulation of germ.Experiment
Period, each paddy growth that handles is normal, shows that reagent agent is preferable to the security of rice.
In summary, the present invention uses fluopyram and Isoprothiolane science mixture, to the prevention effect of rice blast not
It is the simple superposition of each component activity, compared with existing unitary agent, synergistic effect is notable, and quick-acting is high, lasting effect length, energy
Delay germ resistance development, it is good to crop safety, meet the comprehensive regulation of pest and disease damage.
Claims (5)
- A kind of 1. method for preventing and treating rice blast, it is characterised in that by the agriculture that active component is fluopyram and Isoprothiolane Medicine preparation mixes, and is uniformly sprayed on after being watered on rice plant, is defined by blade moistening；Described fluopyram and rice The weight ratio of pest spirit is 10:1~1:10.
- 2. according to the method for claim 1, it is characterised in that fluopyram and the weight of Isoprothiolane ratio are 5：1~1： 2。
- 3. according to the method for claim 2, it is characterised in that fluopyram and the weight of Isoprothiolane ratio are 2：1.
- 4. according to the method for claim 1, it is characterised in that the percentage by weight of fluopyram is 4-40%, rice blast The percentage by weight of spirit is 4-40%.
- 5. according to the method for claim 1, it is characterised in that described pesticidal preparations are suspending agent or wettable powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711082029.9A CN107711846A (en) | 2017-11-07 | 2017-11-07 | A kind of method for preventing and treating rice blast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711082029.9A CN107711846A (en) | 2017-11-07 | 2017-11-07 | A kind of method for preventing and treating rice blast |
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| CN107711846A true CN107711846A (en) | 2018-02-23 |
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ID=61222665
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| CN201711082029.9A Pending CN107711846A (en) | 2017-11-07 | 2017-11-07 | A kind of method for preventing and treating rice blast |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104010505A (en) * | 2011-10-26 | 2014-08-27 | 陶氏益农公司 | Pesticidal compositions and processes related thereto |
| CN104285959A (en) * | 2014-10-24 | 2015-01-21 | 江苏东宝农药化工有限公司 | Synergistic bactericidal composition containing fluxapyroxad and isoprothiolane |
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2017
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104010505A (en) * | 2011-10-26 | 2014-08-27 | 陶氏益农公司 | Pesticidal compositions and processes related thereto |
| CN104285959A (en) * | 2014-10-24 | 2015-01-21 | 江苏东宝农药化工有限公司 | Synergistic bactericidal composition containing fluxapyroxad and isoprothiolane |
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Application publication date: 20180223 |