CN102885045A - Agricultural bactericidal composition containing coumoxystrobin and chlorothalonil - Google Patents
Agricultural bactericidal composition containing coumoxystrobin and chlorothalonil Download PDFInfo
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- CN102885045A CN102885045A CN2012103525163A CN201210352516A CN102885045A CN 102885045 A CN102885045 A CN 102885045A CN 2012103525163 A CN2012103525163 A CN 2012103525163A CN 201210352516 A CN201210352516 A CN 201210352516A CN 102885045 A CN102885045 A CN 102885045A
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- SXNSAIONDFDABY-UHFFFAOYSA-N Cc(c(Cl)c(c(C#N)c1Cl)Cl)c1C#N Chemical compound Cc(c(Cl)c(c(C#N)c1Cl)Cl)c1C#N SXNSAIONDFDABY-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an agricultural bactericidal composition containing coumoxystrobin and chlorothalonil, comprising coumoxystrobin and chlorothalonil with the weight ratio of 1:40-40:1. According to the agricultural bactericidal composition, two bactericides with different mechanisms of action are mixed, namely the novel bactericide coumoxystrobin of strobilurin fungicide is mixed with the chlorothalonil with good uptake and transmission properties, the resistance of pathogenic fungus on coumoxystrobin is weakened, and the reduction of efficacy caused by the resistance is avoided; with the synergistic effect of different bactericides in the composition, the observed bactericidal efficiency of the composition is higher than the bactericidal efficiency predicated by a Colby formula by 26.3% in average; and the observed bactericidal efficiency of the composition can reach 95.3%, is higher than that of coumoxystrobin by 14.7% and is higher than that of pyrimethanil by 13.8%. The agricultural bactericidal composition containing coumoxystrobin and chlorothalonil has good bactericidal effect on various funguses of cereal, vegetables and fruit trees.
Description
Technical field
The invention belongs to agrochemicals bactericide field, relate to particularly a kind of agricultural bactericidal composition that contains SYP-3375 and tpn.
Background technology
Ⅰ
Formula
IThe Universal Chinese character of compound is called SYP-3375, chemical name: (
E)-methyl2-(2-((3-butyl-4-methyl-2-oxo-2
H-chromen-7-yloxy) methyl) phenyl)-3-methoxyacrylate (
E)-2-(2-((3-butyl-4-methyl-coumarin-7-Ji oxygen base) methyl) phenyl)-3-methoxy-methyl acrylate is a kind of disinfectant use in agriculture of high-efficiency broad spectrum.The pathogens such as apple valsa canker, rice blast, powdery mildew of cucumber have very high bacteriostatic activity, (Chinese patent application number 200480020125.5).But, SYP-3375 is methoxy acrylic ester compounds, the mechanism of action is single, the field is reused for a long time, may cause under many circumstances fungal bacterial strain to produce selectivity, and described bacterial strain forms the resistance that adapts to SYP-3375, cause SYP-3375 to these fungi preventive effects reductions even invalid, cause disease to expand, crop failure, agricultural chemicals waste.
Summary of the invention
The object of the invention is to provide a kind of and has the novel agricultural microbicide compositions that bactericidal activity synergistic function, pathogenic bacteria are difficult to develop immunity to drugs, thereby germ produces adaptive variation, the preventive effect of medicament is reduced even invalid drawback medicament when avoiding the SYP-3375 single dose to use.
The invention provides a kind of agricultural bactericidal composition that contains SYP-3375 and tpn, contain active component A, B, component A is SYP-3375, and B component is tpn, and the weight ratio of A and B is 1:40 ~ 40:1; The weight ratio of preferred A and B is 1:20 ~ 20:1; More preferably the weight ratio of A and B is 1:10 ~ 10:1;
The SYP-3375 structural formula is as follows:
Tpn (chlorothalonil), chemical name are 2,4,5,6-tetrachloro-1, the 3-dicyanobenzenes, and structural formula is as follows:
。
SYP-3375 belongs to methoxy acrylic bactericide, mode of action uniqueness but pathogenic bacteria produce the resistance of adaptation easily; Tpn is wide-spectrum bactericide, has to top property conduction function, and multiple diseases is had preventive and therapeutic action.Tetranychid and pathogenic nematode there is inhibitory action.
Tpn is the substituted benzene broad-spectrum germicide, has the effects such as prevention and treatment.The mechanism of action be can with the fungal cell in glyceraldehyde 3-phosphate dehydrogenase have an effect, tie mutually entirely with the protein that contains cysteine in this enzyme, thereby destroy this enzymic activity, fungal cell's metabolism be damaged and lose one's life power.Tpn does not have interior suction conduction, but after being sprayed onto on the plant corpus, can good tackness be arranged at body surface, be difficult for being fallen by rain drop erosion, so the drug effect phase is longer.
Two class medicaments possess different structure types and mechanism of action, and the two composite can generation weakening to a greater extent the pathogen pesticide resistance experiment showed, in the present composition that two kinds of variety classes bactericide form remarkable synergistic function to the control of disease.
The invention provides a kind of agricultural bactericidal composition that contains SYP-3375 and tpn, can prepare according to a conventional method: get according to the above ratio two kinds of active components of A, B, mix, stir, shear, grind, reach 200 orders.
The present composition can be made conventional pesticide preparation such as wetting powder, granule, water dispersible granules, suspending agent, aqueous emulsion etc.These preparations can prepare in a known manner.For example by reactive compound is mixed with solvent and/or carrier, if necessary, adopt emulsifier and dispersant to fill, if use water as thinner, also can make cosolvent with other organic solvent.According to the difference of preparation type, containing present composition percetage by weight in the preparation is 0.1 ~ 95%, more preferably is 5-80%.
The invention provides a kind of agricultural bactericidal composition suspending agent preparation method who contains SYP-3375 and tpn: by prescription; get agricultural bactericidal composition of the present invention, defoamer, emulsifier, HYJ xanthans, ethylene glycol and water and mix; stirred 15 minutes; sheared 15 minutes; grinding more than 150 minutes in sand mill under keeping 30 ℃, to the active ingredient particle diameter less than 3 μ m and get final product.
The invention provides a kind of agricultural bactericidal composition wetting powder preparation method who contains SYP-3375 and tpn: by prescription, get agricultural bactericidal composition of the present invention, wetting agent (dodecyl sodium sulfate or similar material), wooden sodium (sodium lignin sulfonate or allied substances), NNO
(Naphthalenesulfonate formaldehyde condensation compound) or other dispersant, White Carbon black and diatomite (or other filler) with same nature add successively various materials in the colter mixer, mix, pulverize with airslide disintegrating mill again, to the active ingredient particle diameter less than 45 μ m and get final product.
The invention provides a kind of agricultural bactericidal composition water dispersible granules preparation method who contains SYP-3375 and tpn: by prescription; get agricultural bactericidal composition of the present invention; wetting agent (lauryl sodium sulfate or similarly material); WG4(lignin sulfonic acid sodium polymer) or have other dispersant of same function; polyvinyl alcohol (or other adhesive with same nature); White Carbon black and diatomite (or other filler); each component is mixed in colter mixer; be ground into powder through micro jet obtains 800 orders-1000 purpose fine powder; The aqueous solution of gained fine powder and binder (xanthans or similarly other binder) added in the blender mix, carry out granulation with Squeezinggranulator, 50 ℃-100 ℃ lower dry, namely obtain the water dispersible granules of this agricultural chemicals.
Bactericidal composition administration form of the present invention depends on and the factors such as different diseases, time of application, weather conditions, no matter in which kind of situation, must guarantee that their coefficient of dispersion is even as far as possible.
Bactericidal composition of the present invention can use by common method, such as spraying.
Present composition application dosage, the difference according to factors such as different diseases, time of application, weather conditions is generally 2 ~ 200mg/L, preferred 20 ~ 100mg/L.
Bactericidal composition of the present invention is suitable for preventing and treating multiple harmful fungoid, and the multiple fungal disease on Cereal, greengrocery, the fruit tree is had preferably preventive and therapeutic effect.Be particularly suitable for preventing and treating the following plants fungal disease: 1, vegetables: prevent and treat the control of powdery mildew of cucumber etc. 2, fruit tree kind disease: the control of apple valsa canker etc. 3, Cereal disease: rice blast
Use the dosage control harmful fungoid that is fit to, its habitat maybe will prevent and treat plant corpus, seed, soil, zone, material or the space that they infect.Using of composition can be carried out before or after harmful fungoid infects, emphasis should be before infecting or the initial stage of infecting use.
Beneficial effect:The invention provides a kind of agricultural bactericidal composition that contains SYP-3375 and tpn, the bactericide that two classes is had different mechanism of action, being methoxy acrylic novel fungicides agent SYP-3375 inhales conductive chlorothalonil in good and matches with having, weakened disease fungus SYP-3375 is produced resistance, the drug effect of having avoided therefore causing reduces; Because the synergistic function of the variety classes bactericide in the present composition, the present composition is significantly increased to the preventive effect of disease, the germicidal efficiency of observing of the present composition all is higher than the germicidal efficiency that uses the expection of Colby formula, and germicidal efficiency on average improves and 26.3%; Prevent and treat powdery mildew of cucumber, prevent and treat rice blast, prevent and treat apple valsa canker, the germicidal efficiency of observing of the present composition all is higher than the germicidal efficiency that uses the expection of Colby formula, exceeds respectively 20.3%-29.6%, 19.2-26.1%, 15.0-23.2%.The germicidal efficiency that bactericidal composition of the present invention is observed is up to 95.3%, and is higher by 14.7% than SYP-3375, higher by 13.8% than phonetic mould amine.
Bactericidal composition of the present invention is suitable for preventing and treating multiple harmful fungoid, and the multiple fungal disease on Cereal, greengrocery, the fruit tree is had preferably preventive and therapeutic effect.
Embodiment
Embodiment 1The invention provides a kind of agricultural bactericidal composition that contains SYP-3375 and tpn, contain active component A, B, component A is SYP-3375, and B component is tpn, and the weight ratio of A and B is 1:40;
The SYP-3375 structural formula is as follows:
Tpn (Thiophanate-Methyl), chemical name are two (3-methoxycarbonyl group-2-ghiourea group) benzene of 1,2-, and structural formula is as follows:
。
A kind of agricultural bactericidal composition that contains SYP-3375 and tpn prepares according to a conventional method, gets according to the above ratio two kinds of active components of A, B, mixes, and stirs, shear, and grinds to reach 200 orders.
Embodiment 2A kind of agricultural bactericidal composition that contains SYP-3375 and tpn, the weight ratio of described A and B are 40:1; Remaining is with embodiment 1
Embodiment 3A kind of agricultural bactericidal composition that contains SYP-3375 and tpn, the weight ratio of described A and B are 1:20; Remaining is with embodiment 1
Embodiment 4A kind of agricultural bactericidal composition that contains SYP-3375 and tpn, the weight ratio of described A and B are 20:1; Remaining is with embodiment 1
Embodiment 5A kind of agricultural bactericidal composition that contains SYP-3375 and tpn, the weight ratio of described A and B are 1:10; Remaining is with embodiment 1
Embodiment 6A kind of agricultural bactericidal composition that contains SYP-3375 and tpn, the weight ratio of described A and B are 10:1; Remaining is with embodiment 1
Embodiment 7A kind of agricultural bactericidal composition that contains SYP-3375 and tpn, the weight ratio of described A and B are 1:1; Remaining is with embodiment 1
Embodiment 8A kind of suspending agent that contains the agricultural bactericidal composition of SYP-3375 and tpn, each weight percentages of components is as follows:
The concentration that contains the composition of SYP-3375 and tpn is 20%, and wherein component SYP-3375 and component tpn weight ratio are 1:1;
Silicone defoaming agent 0.2%;
Calcium dodecyl benzene sulfonate 8%;
Xanthans 0.1%;
Ethylene glycol 5%;
Water 66.7%.
Various components are mixed, stirred 15 minutes, sheared 15 minutes, in sand mill, grind more than 150 minutes under keeping 30 ℃, to the active ingredient particle diameter less than 3 μ m and get final product.
Embodiment 9A kind of agricultural bactericidal composition wetting powder that contains SYP-3375 and tpn, each weight percentages of components is as follows:
The concentration that contains the composition of SYP-3375 and tpn is 45%, and wherein, component SYP-3375 and component tpn weight ratio are 35:10;
Lauryl sodium sulfate 0.5%;
Sodium lignin sulfonate 1%;
NNO 0.5%；
White Carbon black 3;
Diatomite (or other filler) 50%.
Various materials are added in the colter mixer successively, mix, pulverize with airslide disintegrating mill again, to the active ingredient particle diameter less than 45 μ m and get final product.
Embodiment 10A kind of agricultural bactericidal composition water dispersible granules that contains SYP-3375 and tpn, each weight percentages of components is as follows:
The concentration that contains the composition of SYP-3375 and tpn is 65%, and wherein, component A SYP-3375 and B component tpn weight ratio are 40:25;
Lauryl sodium sulfate 1%;
WG4 4%；
Polyvinyl alcohol 1%;
White Carbon black 3 %;
Diatomite 26%.
Each component is mixed in colter mixing mixer, be ground into powder through micro jet, obtain 800 orders-1000 purpose fine powder; The aqueous solution of gained fine powder and binder (xanthans or similarly other binder) added in the blender mix, carry out granulation with Squeezinggranulator, 50 ℃ of-100 ℃ of lower low temperature dryings, namely obtain the water dispersible granules of this agricultural chemicals.
Application Example
The synergistic function of the present composition can illustrate by following example, but the present invention only limits to by no means this.
Take by weighing an amount of reactive compound acetone solution, water is mixed with each compound the solution (content of acetone is not more than 10% in the solution) of described concentration.With the 0.1%(volume) emulsifier Tween 80 add in these solution, by described proportioning each reactive compound equal proportion is mixed, obtain described proportioning and concentration.
Infect percentage evaluation by measuring leaf area, these percentages are changed into efficient.Use Abbott formula computational efficiency (W):
W=(1-α/β)×100
α processes the fungal infection percentage of plant;
The be untreated fungal infection percentage of (blank) plant of β.
The level that infects that efficient is processed plant for " 0 " expression is identical with the level that infects of untreated control plant; Efficient is processed plant for " 100 " expression and is infected.
The expection efficient use Colby formula [R.S.Colby, weeds (Weeds) 15,20-22 (1967)] of composition is determined and is compared with the efficient of observing.
Colby formula: E=x+y-xy/100
E: the expection efficient when working concentration is respectively the composition of the compd A of a and b and B represents with the % of untreated control.
Efficient when the x working concentration is the compd A of a represents with the % of untreated control;
Efficient when the y working concentration is the compd B of b represents with the % of untreated control.
Application Example 1-8Prevent and treat the powdery mildew of cucumber indoor pot experiment
The actual conditions of Application Example 1-8 such as table 1, table 2.Cucumber variety is No. 2, open country.In the greenhouse, cultivate potted plant cucumber seedling to the five leaf phase, press drug concentration described in table 1, the table 2, use crops sprayer to carry out blade spraying and process, densely covered drop on the blade but do not drip as degree.Crop after the spraying is placed in the fume hood and dries, and adopts the method inoculation powdery mildew of cucumber pathogen spore of spore behind the 24h, places phytotron (temperature: 22 ℃ of daytimes, 18 ℃ of nights, relative moisture: 70%) cultivate 1d, then move to the greenhouse after the inoculation.After blank is fully fallen ill, adopt ocular estimate, investigate the development degree of first blade infection process of every strain cucumber, calculate observation efficiency and the expection efficient of each reactive compound and the present composition.Germicidal efficiency such as the table 1 of SYP-3375, tpn.The present invention is a kind of to contain the germicidal efficiency of observing of agricultural bactericidal composition of SYP-3375 and tpn and germicidal efficiency such as the table 2 of calculating.
Annotate:(1) " * " in the table: the germicidal efficiency that uses the Colby formula to calculate.
Annotate:(1) " * " in the table: the germicidal efficiency that uses the Colby formula to calculate.I, II are with table 1.
(1) as can be seen from Table 2, the germicidal efficiency of observing of preventing and treating the powdery mildew of cucumber present composition all is higher than the germicidal efficiency that uses the expection of Colby formula, exceeds 20.3%-29.6%.
(2)When concentration was 200 mg/L, to powdery mildew of cucumber, the germicidal efficiency that bactericidal composition of the present invention is observed was 95.3%.SYP-3375 is 80.6 %, and phonetic mould amine is 81.5%.The germicidal efficiency that bactericidal composition of the present invention is observed powdery mildew of cucumber is higher by 14.7% than SYP-3375, and is higher by 13.8% than phonetic mould amine.
Application Example 9-16Control rice blast indoor pot experiment
The actual conditions of Application Example 9-16 such as table 3, table 4.Rice varieties is " protein ", and the rice cultivation seedling is pressed drug concentration described in table 3, the table 4 to two leaf stage in the greenhouse, uses crops sprayer that rice seedling is carried out blade spraying and processes, and drop but do not drip as degree gathers on the blade.Seedling after the processing is placed shady and cool place plant surface liquid is dried.Use behind the 24h rice blast pathogen (
Pyricularia grisea) spore suspension inoculates processing to blade, then potted plant seedling is positioned in the phytotron (temperature: 24 ~ 28 ℃, relative moisture: 95%) cultivate 9d.After blank is fully fallen ill, adopt ocular estimate, the development degree of infection process on the investigation blade, germicidal efficiency such as the table 3 of SYP-3375, tpn.The germicidal efficiency of observing of the present composition and germicidal efficiency such as the table 4 of calculating.
Annotate:(1) " * " in the table: the germicidal efficiency that uses the Colby formula to calculate.
Annotate:(1) " * " in the table: the germicidal efficiency that uses the Colby formula to calculate.I, II are with table 3.
(1)As can be seen from Table 4, result of the test shows, control rice blast, and the germicidal efficiency of observing that contains SYP-3375 and tpn of the present invention all is higher than the germicidal efficiency that uses the expection of Colby formula, exceeds 19.2-26.1%.
(2)As can be seen from Table 4, when concentration was 200 mg/L, to control rice blast, the germicidal efficiency that bactericidal composition of the present invention is observed was 94.8%.As can be seen from Table 3, SYP-3375 is 80.6 %, and phonetic mould amine is 81.5%.The germicidal efficiency that bactericidal composition of the present invention is observed powdery mildew of cucumber is higher by 14.2% than SYP-3375, and is higher by 13.3% than phonetic mould amine.
Application Example 17-24Prevent and treat the apple valsa canker laboratory test
The actual conditions of Application Example 17-24 such as table 5, table 6.Intercept the apple tree branch of the identical age of tree by the field, use card punch to punch at the apple tree branch, with Valsa mali Miyabe et Yamada [apple shell capsule spore
Cytospora mandshurica] the bacterium sheet is positioned over branch punching place, fix with preservative film.Then place (temperature: 25 ℃) cultivation 3 d in the incubator.Behind 3 d, after soaking 10s in the reagent agent solution such as following table 5, the described drug concentration of table 6, dry, place (temperature: 25 ℃) cultivation 15d in the incubator, investigation result is calculated germicidal efficiency such as the table 5 of SYP-3375, tpn to infect size on the branch.The present invention is a kind of to contain the germicidal efficiency of observing of agricultural bactericidal composition of SYP-3375 and tpn and germicidal efficiency such as the table 6 of calculating.
Annotate:(1) " * " in the table: the germicidal efficiency that uses the Colby formula to calculate.
Annotate:(1) " * " in the table: the germicidal efficiency that uses the Colby formula to calculate.I, II are with table 5
(1) as can be seen from Table 6, prevent and treat apple valsa canker, the germicidal efficiency that bactericidal composition of the present invention is observed all is higher than the germicidal efficiency that uses the expection of Colby formula, exceeds 15.0-23.2%.
(2) as can be seen from Table 6, when concentration is 200 mg/L, prevent and treat apple valsa canker, the germicidal efficiency that bactericidal composition of the present invention is observed is 94.7%.As can be seen from Table 3, SYP-3375 is 80.5 %, and phonetic mould amine is 80.6%.The germicidal efficiency that bactericidal composition of the present invention is observed is higher by 14.2% than SYP-3375, and is higher by 14.1% than phonetic mould amine.
Claims (4)
1. an agricultural bactericidal composition that contains SYP-3375 and tpn is characterized in that, contains active component A, B, and component A is SYP-3375, and B component is tpn, and the weight ratio of A and B is 1:40 ~ 40:1;
The SYP-3375 structural formula is as follows:
Tpn (Thiophanate-Methyl), chemical name are two (3-methoxycarbonyl group-2-ghiourea group) benzene of 1,2-, and structural formula is as follows:
2. according to a kind of agricultural bactericidal composition that contains SYP-3375 and tpn claimed in claim 1, it is characterized in that the weight ratio of A and B is 1:20 ~ 20:1.
3. according to a kind of agricultural bactericidal composition that contains SYP-3375 and tpn claimed in claim 1, it is characterized in that the weight ratio of A and B is 1:10 ~ 10:1.
4. according to a kind of agricultural bactericidal composition that contains SYP-3375 and tpn claimed in claim 1, it is characterized in that the weight ratio of A and B is 1:1.
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| CN2012103525163A CN102885045A (en) | 2012-09-21 | 2012-09-21 | Agricultural bactericidal composition containing coumoxystrobin and chlorothalonil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616448A (en) * | 2003-11-11 | 2005-05-18 | 沈阳化工研究院 | Benzopyrone compounds with pest killing and sterilizing activity and preparation and use |
| CN101485307A (en) * | 2009-02-09 | 2009-07-22 | 吉林省八达农药有限公司 | Agricultural fungicidal composition containing SYP-3375 and triazole fungicide |
| WO2011067205A1 (en) * | 2009-12-02 | 2011-06-09 | Basf Se | Pesticidal mixtures of triazamate with strobilurines |
| CN102388875A (en) * | 2011-10-11 | 2012-03-28 | 陕西上格之路生物科学有限公司 | Bactericidal composition containing coumoxystrobin and chlorothalonil |
-
2012
- 2012-09-21 CN CN2012103525163A patent/CN102885045A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616448A (en) * | 2003-11-11 | 2005-05-18 | 沈阳化工研究院 | Benzopyrone compounds with pest killing and sterilizing activity and preparation and use |
| CN101485307A (en) * | 2009-02-09 | 2009-07-22 | 吉林省八达农药有限公司 | Agricultural fungicidal composition containing SYP-3375 and triazole fungicide |
| WO2011067205A1 (en) * | 2009-12-02 | 2011-06-09 | Basf Se | Pesticidal mixtures of triazamate with strobilurines |
| CN102388875A (en) * | 2011-10-11 | 2012-03-28 | 陕西上格之路生物科学有限公司 | Bactericidal composition containing coumoxystrobin and chlorothalonil |
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Application publication date: 20130123 |