CN103053572A - Agricultural antifungal composition containing coumoxystrobin and thiophanate-methyl - Google Patents
Agricultural antifungal composition containing coumoxystrobin and thiophanate-methyl Download PDFInfo
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- CN103053572A CN103053572A CN2012103525197A CN201210352519A CN103053572A CN 103053572 A CN103053572 A CN 103053572A CN 2012103525197 A CN2012103525197 A CN 2012103525197A CN 201210352519 A CN201210352519 A CN 201210352519A CN 103053572 A CN103053572 A CN 103053572A
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Abstract
The invention discloses an agricultural antifungal composition containing coumoxystrobin and thiophanate-methyl, which contains the coumoxystrobin and the thiophanate-methyl according to the weight ratio of (1:40)-(40:1). The composition disclosed by the invention can weaken the resistance of pathogenic fungi to the coumoxystrobin and further avoid the decrease in efficacy by matching two types of germicides with different action mechanisms, namely the coumoxystrobin which is of a methoxyacrylate type formulated germicide and the thiophanate-methyl germicide with good systemicity. Due to cooperative and synergistic action, the composition disclosed by the invention significantly improves the effect on controlling diseases. The observed germicidal efficiency of the composition disclosed by the invention is improved by about 24% on average; and the observed antifungal efficiency is as high as 96.1%, which is higher than that of the coumoxystrobin by 66.05% and higher than that of the thiophanate-methyl by 67.52%. The composition disclosed by the invention can be prepared into common formulations, and has a great effect on controlling a variety of fungi of vegetables, fruit trees and cereals.
Description
Technical field
The invention belongs to agrochemicals bactericide field, relate to particularly a kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl.
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 sclerotinia rot of colza, apple valsa canker, rice blast, cladosporium leaf and fruit mould of tomato, wheat scab, scab of cucumber, anthracnose of tomato, cucumber fusarium axysporum, ring rot of apple, rice sheath blight disease, bakanae disease of rice, wheat powdery mildew, powdery mildew of cucumber, cucumber downy mildew, wheat sharp eyespot, gray mold of cucumber, banana ash line disease had 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 fungicidal composition that contains SYP-3375 and thiophanate-methyl, contain active component A, B, component A is SYP-3375, and B component is thiophanate-methyl, 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:
Thiophanate-methyl (Thiophanate-Methyl), chemical name are two (3-methoxycarbonyl group-2-ghiourea group) benzene of 1,2-, and structural formula is as follows:
。
SYP-3375 belongs to methoxy acrylic bactericide, mode of action uniqueness but pathogenic bacteria easily produce the resistance of adaptation; Thiophanate-methyl 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.
Thiophanate-methyl is wide spectrum, interior absorption benzimidazole germicide, has the effects such as prevention and treatment.It can be converted into carbendazim after first in plant corpus, disturb the formation of the spindle in the mitosis of bacterium again, carries out and affects cell division.Be mainly used in preventing and treating Pyricularia oryzae Cav, banded sclerotial blight, powdery mildew, sclerotinia rot of colza, tomato leaf mold, fruit tree and flowers scab etc.Above-mentioned bactericide " has introduction in external pesticide species handbook or " the world pesticide complete works-bactericide volume " what the Ministry of Chemical Industry's agricultural chemicals central information facility was published.
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 fungicides form remarkable synergistic function to the control of disease.
The invention provides a kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, can prepare according to a conventional method: get according to the above ratio A, two kinds of active components of 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 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 fungicidal composition suspending agent preparation method who contains SYP-3375 and thiophanate-methyl: by prescription; get agricultural fungicidal 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 fungicidal composition wetting powder preparation method who contains SYP-3375 and thiophanate-methyl: by prescription; get agricultural fungicidal composition of the present invention; wetting agent (dodecyl sodium sulfate or similarly material); wooden sodium (sodium lignin sulfonate or allied substances); NNO(naphthalenesulfonate formaldehyde condensation compound) or other dispersant with same nature; White Carbon black and diatomite (or other filler); 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 fungicidal composition water dispersible granules preparation method who contains SYP-3375 and thiophanate-methyl: by prescription; get agricultural fungicidal 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; Mix in the aqueous solution adding blender with gained fine powder and binder (xanthans or similar binder), carry out granulation with Squeezinggranulator, 50 ℃-100 ℃ lower dryings, namely obtain the water dispersible granules of this agricultural chemicals.
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.
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.
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 fungicidal composition that contains SYP-3375 and thiophanate-methyl, the bactericide that two classes is had different mechanism of action, being methoxy acrylic novel fungicides agent SYP-3375 inhales conductive methyl sulfur bacterium bactericide 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 fungicide in the present composition makes the present composition be 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, prevent and treat powdery mildew of cucumber, prevent and treat rice blast, prevent and treat apple valsa canker, result of the test shows, the germicidal efficiency of observing of the present composition all is higher than the germicidal efficiency that uses the expection of Colby formula, exceed respectively 10%-26%, 9.9-22.68%, 10-24.6%,, on average improve about 24%.
When concentration is 200 mg mg/L, prevent and treat powdery mildew of cucumber, the antifungal efficient of observing of the present composition is 92.6%, and the antifungal efficient that SYP-3375 is observed is 40.51%; The antifungal efficient that thiophanate-methyl is observed is 35.80%, and the antifungal efficient of observing of the present composition is higher by 52.19% than SYP-3375, and the antifungal efficient that thiophanate-methyl is observed is 56.8%.
When concentration is 200 mg mg/L, control rice blast, the antifungal efficient of observing of the present composition is 93.4%; The antifungal efficient that SYP-3375 is observed is 31.85%, and the antifungal efficient that thiophanate-methyl is observed is 22.42%.The antifungal efficient of observing of the present composition is higher by 61.55% than SYP-3375, and is higher by 70.98% than thiophanate-methyl.
When concentration is 200 mg mg/L, prevent and treat apple valsa canker, the antifungal efficient of observing of the present composition is 96.1%; The antifungal efficient that SYP-3375 is observed is 30.05%, and the antifungal efficient that thiophanate-methyl is observed is 28.580%, and the antifungal efficient of observing of the present composition is higher by 66.05% than SYP-3375, and is higher by 67.52% than thiophanate-methyl.
The present composition can be made common formulations, and the multiple fungal disease of greengrocery, fruit tree kind, Cereal is had preferably preventive and therapeutic effect.
Embodiment
Embodiment 1The invention provides a kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, contain active component A, B, component A is SYP-3375, and B component is thiophanate-methyl, and the weight ratio of A and B is 1:40;
The SYP-3375 structural formula is as follows:
Thiophanate-methyl (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 fungicidal composition that contains SYP-3375 and thiophanate-methyl prepares according to a conventional method, gets according to the above ratio A, two kinds of active components of B, mixes, and stirs, shear, and grinds to reach 200 orders.
Embodiment 2A kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, the weight ratio of described A and B are 40:1; Remaining is with embodiment 1
Embodiment 3A kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, the weight ratio of described A and B are 1:20; Remaining is with embodiment 1
Embodiment 4A kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, the weight ratio of described A and B are 20:1; Remaining is with embodiment 1
Embodiment 5A kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, the weight ratio of described A and B are 1:10; Remaining is with embodiment 1
Embodiment 6A kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, the weight ratio of described A and B are 10:1; Remaining is with embodiment 1
Embodiment 7A kind of agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl, 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 fungicidal composition of SYP-3375 and thiophanate-methyl, each weight percentages of components is as follows:
The concentration that contains the composition of SYP-3375 and thiophanate-methyl is 20%, and wherein component SYP-3375 and component thiophanate-methyl weight ratio are 1:1;
Silicone defoaming agent 0.2%;
Calcium dodecyl benzene sulfonate 8%;
HYJ 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 fungicidal composition wetting powder that contains SYP-3375 and thiophanate-methyl, each weight percentages of components is as follows:
The concentration that contains the composition of SYP-3375 and thiophanate-methyl is 45%, and wherein, component SYP-3375 and component thiophanate-methyl 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 fungicidal composition water dispersible granules that contains SYP-3375 and thiophanate-methyl, each weight percentages of components is as follows:
The concentration that contains the composition of SYP-3375 and thiophanate-methyl is 65%, and wherein, component A SYP-3375 and B component thiophanate-methyl 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; Mix in the aqueous solution adding blender with gained fine powder and xanthans or similar binder, 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 excellent No. 2 of brocade.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, thiophanate-methyl.The present invention is a kind of to contain the germicidal efficiency of observing of agricultural fungicidal composition of SYP-3375 and thiophanate-methyl and germicidal efficiency such as the table 2 of calculating.
Annotate: the germicidal efficiency of " * " in the table for using the Colby formula to calculate.
Annotate: the germicidal efficiency of " * " in the table for using the Colby formula to calculate.I in the table 2 is SYP-3375, and II is thiophanate-methyl.
(1) as can be seen from Table 2, prevent and treat powdery mildew of cucumber, result of the test shows, the germicidal efficiency of observing of the present composition all is higher than the germicidal efficiency that uses the expection of Colby formula, exceeds 10%-26%.
(2) as can be seen from Table 2, when concentration is 200 mg mg/L, prevent and treat powdery mildew of cucumber, the antifungal efficient of observing of the present composition is 92.6%, and the antifungal efficient that SYP-3375 is observed is 40.51%; As can be seen from Table 1, the antifungal efficient that thiophanate-methyl is observed is 35.80%, and the antifungal efficient of observing of the present composition is higher by 52.19% than SYP-3375, and the antifungal efficient that thiophanate-methyl is observed is 56.8%.
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 " more light ", 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, thiophanate-methyl.The germicidal efficiency of observing of the present composition and germicidal efficiency such as the table 4 of calculating.
Annotate:The germicidal efficiency of " * " in the table for using the Colby formula to calculate.
Annotate:The germicidal efficiency of " * " in the table for using the Colby formula to calculate.I in the table 2 is SYP-3375, and II is thiophanate-methyl.
(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 thiophanate-methyl of the present invention all is higher than the germicidal efficiency that uses the expection of Colby formula, exceeds 9.9-22.68%.
(2)From table 4, when concentration is 200 mg mg/L, control rice blast, the antifungal efficient of observing of the present composition is 93.4%; From table 3, the antifungal efficient that SYP-3375 is observed is 31.85%, and the antifungal efficient that thiophanate-methyl is observed is 22.42%.The antifungal efficient of observing of the present composition is higher by 61.55% than SYP-3375, and is higher by 70.98% than thiophanate-methyl.
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.Intercepted 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, thiophanate-methyl to infect size on the branch.The present invention is a kind of to contain the germicidal efficiency of observing of agricultural fungicidal composition of SYP-3375 and thiophanate-methyl and germicidal efficiency such as the table 6 of calculating.
Annotate: the germicidal efficiency of " * " in the table for using the Colby formula to calculate.
Annotate:The germicidal efficiency of " * " in the table for using the Colby formula to calculate.I in the table 2 is SYP-3375, and II is thiophanate-methyl.
(1) as can be seen from Table 6, prevent and treat apple valsa canker, the result of the test that contains the germicidal efficiency of SYP-3375 and thiophanate-methyl of the present invention shows, the germicidal efficiency of observing that contains SYP-3375 and thiophanate-methyl of the present invention all is higher than the germicidal efficiency that uses the expection of Colby formula, exceeds 10-24.6%.
(2)From table 5, when concentration is 200 mg mg/L, prevent and treat apple valsa canker, the antifungal efficient of observing of the present composition is 96.1%; From table 5, the antifungal efficient that SYP-3375 is observed is 30.05%, and the antifungal efficient that thiophanate-methyl is observed is 28.580%, and the antifungal efficient of observing of the present composition is higher by 66.05% than SYP-3375, and is higher by 67.52% than thiophanate-methyl.
Claims (4)
1. an agricultural fungicidal composition that contains SYP-3375 and thiophanate-methyl is characterized in that, contains active component A, B, and component A is SYP-3375, and B component is thiophanate-methyl, and the weight ratio of A and B is 1:40 ~ 40:1;
The SYP-3375 structural formula is as follows:
Thiophanate-methyl (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 fungicidal composition that contains SYP-3375 and thiophanate-methyl 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 fungicidal composition that contains SYP-3375 and thiophanate-methyl 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 fungicidal composition that contains SYP-3375 and thiophanate-methyl claimed in claim 1, it is characterized in that, the weight ratio of A and B is 1:1.
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| CN110495461A (en) * | 2018-05-19 | 2019-11-26 | 安徽省农业科学院植物保护与农产品质量安全研究所 | A kind of bactericidal composition containing coumoxystrobin and probenazole |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349531A (en) * | 2011-09-13 | 2012-02-15 | 陕西上格之路生物科学有限公司 | Bactericidal composition containing coumoxystrobin and benzimidazole bactericide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102349531A (en) * | 2011-09-13 | 2012-02-15 | 陕西上格之路生物科学有限公司 | Bactericidal composition containing coumoxystrobin and benzimidazole bactericide |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495461A (en) * | 2018-05-19 | 2019-11-26 | 安徽省农业科学院植物保护与农产品质量安全研究所 | A kind of bactericidal composition containing coumoxystrobin and probenazole |
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Application publication date: 20130424 |