CN107047585A - One kind is combined antifungal agricultural chemicals - Google Patents

One kind is combined antifungal agricultural chemicals Download PDF

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Publication number
CN107047585A
CN107047585A CN201710440605.6A CN201710440605A CN107047585A CN 107047585 A CN107047585 A CN 107047585A CN 201710440605 A CN201710440605 A CN 201710440605A CN 107047585 A CN107047585 A CN 107047585A
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Prior art keywords
formula
plant
formulas
fungicide
combined
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CN201710440605.6A
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Chinese (zh)
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宋琦
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N47/00Biocides, 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
    • A01N47/08Biocides, 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
    • A01N47/10Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/20N-Aryl derivatives thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N47/00Biocides, 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
    • A01N47/08Biocides, 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
    • A01N47/10Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/18Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, directly attached to a heterocyclic or cycloaliphatic ring

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The present invention relates to a kind of compound fungicide of Synergistic, it includes Formulas I, the Fungicidal active ingredient of Formula II, and suppresses the composition that plant pathogenic fungi generation produces drug resistance for Formulas I and/or Formula II.It is described it is compound kill that safe and efficient, has a broad antifungal spectrum, fungus control effect are good, be particularly suitable for use in preventing and treating the various disease funguses infection of apple tree.

Description

One kind is combined antifungal agricultural chemicals
Technical field
The invention belongs to technical field of pesticide, it is related to a kind of compound pesticide composition, and in particular to increase containing two kinds of collaborations Imitate the composition pesticide of Fungicidal active ingredient.
Background technology
Plant infect disease in, the most species of fungal disease, account for the 70%~80% of whole plant diseases with On.The fungal disease of apple belongs to widely distributed disease in China, not only harm is produced in field, due also to its latent infection is special Property, fruit is endangered, yield reduction, fruit can be made to lose commodity value, loses very big, fruit industry production safety is had a strong impact on.It is as usual The Major Fungus Diseases seen have:Rot, anthracnose, ring spot, powdery mildew, diplostomiasis, dry rot etc..
Due to fungus-caused plant disease most species, it is most universal, the mankind study plant pathogenic fungi earliest, most It is detailed, so the bactericide species for being exclusively used in preventing and treating fungal disease so far is also most.In agricultural production process, with killing Microbial inoculum preventing and treating fungal infection is faced with two large problems for a long time:One is that anti-fungus spectra is not wide enough, although researcher is devoted for years to In research and development broad-spectrum antifungals, but because plant pathogenic fungi species is various, genetic background and form are highly broken up, therefore relatively For the species of plant pathogenic fungi, even the antifungal agent of wide spectrum is also only applicable to wherein sub-fraction disease fungus Preventing and treating.Two be that drug resistance fungal persistently occurs, and widely uses fungicide to control disease fungus for a long time in agricultural production, this year is The drug resistance disease fungus of a variety of fungicides is directed to through having engendered, but the research and development speed of new fungicide is not much with The generation speed of upper drug resistance fungal, it is impossible to meet the need for preventing and treating drug resistance disease fungus in production.
In agricultural production practice, it is to prevent and treat the common side of plant pathogenic fungi that different types of agricultural chemicals is carried out into compounding Method.However, because pesticide variety is various, the compound scheme of different pesticide varieties, compounding effect are different, it is generally raw by agricultural Production person compounds to different farm chemical ingredients, according to field using effect, and it is synergy plus and or antagonism to estimate certain compounding Effect.The unordered abuse of fungicide not only causes the poorly efficient of fungus control, and is easy to the generation of inducible resistance fungi. In most cases, fungicide compounding is all simple fungicidal effect superposition, and real Synergistic is then considerably less.
The content of the invention
For the above-mentioned problems in the prior art, the present invention provide it is a kind of be combined antifungal agricultural chemicals, its have safety, Efficiently, has a broad antifungal spectrum, fungus control effect is good, be difficult induction produce drug-fast bacteria the features such as.
In a first aspect, the present invention provides a kind of compound antifungal agricultural chemicals with synergistic function, it is characterised in that bag Fungicidal active ingredient containing Formulas I and Formula II,
And suppress the composition that plant pathogenic fungi generation produces drug resistance for Formulas I and/or Formula II.
It is pesticide corrosion 120 that suppression fungi of the present invention, which produces the composition for producing drug resistance for Formulas I and/or Formula II,.
It is of the present invention to be combined antifungal agricultural chemicals, Formulas I in its feature: the weight of Formula II this be 4-1: 1-4.
It is of the present invention to be combined antifungal agricultural chemicals, it is characterised in that the suppression fungi, which produces, is directed to Formulas I and/or Formula II The content for producing the composition of drug resistance is 3-6%.
It is of the present invention to be combined antifungal agricultural chemicals, it is characterised in that the agricultural chemicals is aqua, pulvis, wettable powder, grain Agent.
It is of the present invention to be combined antifungal agricultural chemicals, it is characterised in that the formula by weight containing 15% Formulas I, 30% II, 4% pesticide corrosion 120.
Second aspect, the present invention also provides a kind of application method for being combined antifungal agricultural chemicals, it is characterised in that will be described multiple Close antifungal agricultural chemicals to carry out after 1: 400 dilution with weakly acidic pH or faintly acid solvent, spray plant.
Plant of the present invention includes but is not limited to apple, pears, peach, grape etc..
The third aspect, the present invention also provides the purposes for being combined antifungal agricultural chemicals in preventing and treating plant fungal disease, It is preferred for preventing and treating fruit tree fungal disease.
Plant of the present invention includes but is not limited to apple, pears, peach, grape etc.;Described plant fungal disease is excellent Superior pathogenic fungi is elected as, such as sac fungus, basidiomycetes, Fungi Imperfecti.
Fourth aspect, the present invention also provides the compound antifungal agricultural chemicals in plant pathogenic fungi generation drug resistance is suppressed Purposes.
Plant of the present invention includes but is not limited to apple, pears, peach, grape etc.;Described plant fungal disease is excellent Superior pathogenic fungi is elected as, such as sac fungus, basidiomycetes, Fungi Imperfecti.
The present invention achieves following technique effect:
1. of the present invention be combined antifungal agricultural chemicals for high-efficiency low-toxicity formula, by 2 two kinds of fungicides containing phenyl ring of Formulas I and formula Compounding generates synergistic function, can effectively control drug resistance plant pathogenic fungi.
2. compound antifungal agricultural chemicals of the present invention has further expanded antimicrobial spectrum by the compounding of two kinds of fungicides, right Encountered pathogenic fungi has inhibitory action in current agricultural production practice so that agricultural producer is without specifically identifying disease fungus Particular type, that is, be easy to use, decrease the abuse of fungicide.
3. of the present invention be combined the composition that antifungal agricultural chemicals contains suppression drug-fast bacteria generation, resistance can be avoided or reduced The generation of bacterium, is applied to long-term use or single cropping is used for multiple times.
Embodiment
Below in conjunction with specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without In limitation the scope of the present invention.The experimental method of unreceipted actual conditions in the following example, generally according to normal condition or is pressed According to the condition proposed by manufacturer.Unless otherwise defined, all specialties used in text are ripe with this area with scientific words Practice meaning known to personnel identical.In addition, any method similar or impartial to described content and material all can be applied to In the inventive method.Preferable implementation described in text only presents a demonstration with material to be used.
Embodiment 1
Pathogen is gathered from the apple with rot, by being accredited as one plant of black skin shell bacterium, Formulas I and formula are identified with it II Synergistic active action condition.
Using Toxicity Determination method, standard method NY/T1156.2-2006 is surveyed with reference to raw, using pastille culture medium method: The decoction 6mL of each single dose and mixture series concentration is taken, addition is cooled in 45 DEG C of 54mL PDA culture medium, required for being made The pastille culture medium flat board of final concentration.Then the object bacteria colony edge from culture 7 days produces 6mm diameter mycelia blocks, moves to each In serial pastille culture medium, mycelia down, each handles 4 repetitions.It is disposed, is placed in 25 ± 1 DEG C of constant temperature biochemistry training Support in case and cultivate.
Culture medium flat plate is taken out after 3 days, each processing colony diameter is measured with crossing method, the mycelia life of each processing is calculated Long inhibiting rate.It is independent variable x according to the logarithm value of drug concentration (mg/L), using the probit value of corrected mortality as dependent variable y, point Virulence regression equation is not set up, the EC50 and its mixture co-toxicity coefficient of single dose and each proportioning mixture are calculated using DPS softwares.Altogether Malicious coefficient (CTC) >=120 shows as synergistic effect;Co-toxicity coefficient (CTC)≤80 shows as antagonism;80 < co-toxicity coefficients (CTC) < 120 shows as summation action.Survey toxicity index (ATI)=(standard agent EC50/ reagent agent EC50) × 100. Theoretical toxicity index (TTI)=(A percentage composition in A toxicity index × mixture)+(the hundred of B in B toxicity index × mixture Divide content).Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100.Knot Fruit is as shown in table 1
Table 1:Compound of formula I and joint toxicity measuring result of the Formula II compound to canker of apple fruit
As can be seen from Table 1, the ratio of formula (I) and formula (II) be 5: 1,4: 1,3: 1,2: 1,1: 1,1: 2,1: 3,1: 4,1: 5 group During conjunction, be respectively 118.93 to the CTC values of apple black skin shell bacterium, 125.37,127.03,124.74,130.09,137.90, 135.05th, 124.14,118.34, particularly when its ratio is between 1: 1-1: 3, synergistic function is particularly significant.
Embodiment 2
Contain the similitude in phenyl ring, structure due to formula (I) compound and formula (II) compound, in fact it could happen that while right The bacterial strain of formula (I) and formula (II) resistance.We are used as antifungal agent using formula (I) and formula (II) in the compound of 1: 2 ratio.Compounding In fungicide by weight containing 15% Formulas I, 30% Formula II, surplus be auxiliary material, by the fungicide of the compounding with 1 : used after 400 times of dilutions.
Medicament sensitivity test is carried out to the 41 pathogen strain fungies for being isolated from apple, the 41 pathogen strain fungi includes ascus 15 plants of bacterium, 12 plants of rest fungus, 9 plants of botrytis cinerea, mould 5 plants of column disk spore.As a result 400 times of dilutions pair of above-mentioned compounding fungicide are shown 38 pathogen strain fungi therein is effective, (2 plants of grey mold, 1 plant of column disk spore are mould invalid) invalid to 3 plants therein.
To above-mentioned three pathogen strains fungi, respectively with formula (I) compound and formula (II) compound test antibacterial situation, all do not have yet It is effective, it follows that this three pathogen strains fungi has dual drug resistance or intersection to formula (I) compound and formula (II) compound Drug resistance.
It is multiple in formula (I), formula (II) according to the stability of formula (I) and formula (II) compound, anti-fungal mechanism, action condition On the basis of matching somebody with somebody, it is further combined jinggangmeisu, polyoxin, pesticide corrosion 120, kasugarnycin etc. and is screened.As a result show The three of compounding acquisition are carried out containing the pesticide corrosion 120 in 15% Formulas I, the antifungal agent composition of 30% Formula II, adding 3-5% First Fungicidal composition can produce inhibitory action to all 41 pathogen strain fungies for being isolated from apple.
The field test of embodiment three
The apple mildew state of an illness is investigated before medication, in state of an illness first time at initial stage dispenser, every dispenser in 10 days once, is altogether applied 2 times. Investigate apple tree brown spot disease indexs and calculate preventive effect within 28 days after second of dispenser.Disease index and prevention effect calculation formula It is as follows:
As a result show, it is described to be killed containing 15% compound of formula I, 30% Formula II compound, the compounding of 4% pesticide corrosion 120 Epiphyte pharmaceutical is up to more than 97% to the prevention effect of powdery mildew, and preventive effect phase is long.
In addition, ternary built fungicide of the present invention also has to rust of apple (Gymnosporangium yamadai), canker of apple fruit, apple marssonina leaf spot etc. There is higher prevention effect, the prevention effect of 28 days is between 89-95% after second of dispenser.
Described above not limitation of the present invention, the present invention is also not limited to the example above.The art it is common Technical staff is in the essential scope of the present invention, the variations, modifications, additions or substitutions made, and should also belong to the protection of the present invention Scope, protection scope of the present invention is defined by claims.

Claims (10)

1. a kind of compound fungicide of Synergistic, it is characterised in that comprising with the Fungicidal active ingredient of following formula I and Formula II,
And, the active component for the plant pathogenic fungi that can suppress there is drug resistance for Formulas I and/or Formula II or it can suppress plant Thing disease fungus produces the composition that drug resistance is produced for Formulas I and/or Formula II.
2. fungicide is combined as claimed in claim 1, the plant that can suppress that there is drug resistance for Formulas I and/or Formula II The active component of disease fungus or plant pathogenic fungi can be suppressed produce the composition for producing drug resistance for Formulas I and/or Formula II be Pesticide corrosion 120.
3. fungicide is combined as claimed in claim 1 or 2, it is characterised in that Formulas I: the weight ratio of Formula II is 4-1: 1-4.
4. fungicide is combined as claimed in claim 1 or 2, it is characterised in that described to suppress to have for Formulas I and/or Formula II There is the active component of the plant pathogenic fungi of drug resistance or plant pathogenic fungi can be suppressed and produce for Formulas I and/or Formula II generation The content of the composition of drug resistance is 3-6% (weight ratio).
5. fungicide is combined as claimed in claim 1 or 2, it is characterised in that the agricultural chemicals is aqua, pulvis, wettable powder Agent, granula.
6. as described in claim 1 to 5 is any be combined fungicide, it is characterised in that by weight containing 15% Formulas I, 30% Formula II, 4% pesticide corrosion 120.
7. the application method of fungicide is combined as described in claim 1 to 6 is any, it is characterised in that described be combined is killed true After microbial inoculum is diluted with 1: 200-800 times of weakly acidic pH or faintly acid solvent progress, the plant of pathogenic infection fungi is sprayed.
8. method as claimed in claim 7, it is characterised in that described disease fungus is superior pathogenic fungi, including ascus Bacterium, basidiomycetes, Fungi Imperfecti etc.;Described plant includes apple, pears, peach, grape etc..
9. purposes of the fungicide in agricultural chemicals is prepared is combined as described in claim 1 to 6 is any.
10. purposes as claimed in claim 9, wherein the agricultural chemicals can be used for preventing and treating plant fungal disease, described plant Fungi is superior pathogenic fungi, including sac fungus, basidiomycetes, Fungi Imperfecti etc.;Described plant includes apple, pears, peach, grape Deng.
CN201710440605.6A 2017-06-12 2017-06-12 One kind is combined antifungal agricultural chemicals Pending CN107047585A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273776A (en) * 1999-01-27 2000-11-22 魏宏儒 Chemical for preventing and treating vascular bundle diseases of plant
CN1288667A (en) * 1999-09-21 2001-03-28 马越 Diethofencarb-carbendazim composite germicide
CN101194618A (en) * 2006-12-07 2008-06-11 上海杜邦农化有限公司 Agricultural compositioncontaining cardendazim and diethofencarb, and use thereof
JP2011225497A (en) * 2010-04-22 2011-11-10 Sumitomo Chemical Co Ltd Plant disease control method
CN102246783A (en) * 2010-05-21 2011-11-23 王海林 Diethofencarb and carbendazim wettable powder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273776A (en) * 1999-01-27 2000-11-22 魏宏儒 Chemical for preventing and treating vascular bundle diseases of plant
CN1288667A (en) * 1999-09-21 2001-03-28 马越 Diethofencarb-carbendazim composite germicide
CN101194618A (en) * 2006-12-07 2008-06-11 上海杜邦农化有限公司 Agricultural compositioncontaining cardendazim and diethofencarb, and use thereof
JP2011225497A (en) * 2010-04-22 2011-11-10 Sumitomo Chemical Co Ltd Plant disease control method
CN102246783A (en) * 2010-05-21 2011-11-23 王海林 Diethofencarb and carbendazim wettable powder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
沈宙等: "多菌灵与乙霉威复配对灰霉病的室内活性研究", 《现代农药》 *

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Application publication date: 20170818

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