CN102885046A - Agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl - Google Patents
Agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl Download PDFInfo
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Abstract
The invention relates to an agricultural fungicidal composition containing coumoxystrobin and kresoxim-methyl. In the composition, the weight ratio of the coumoxystrobin to the kresoxim-methyl is (1:50)-(50:1). Strobilurin formulated bactericide coumoxystrobin is mixed with samilar fungicidal kresoxim-methyl with fungicides having different fungicidal spectrums, the resistance of pathogenic fungi to the coumoxystrobin is weakened, thus, the weakened fungicidal effect is avoided. The disease control effect of the fungicidal composition can be obviously improved because of the synergic effect of the fungicides. The observed fungicidal efficiencies of the fungicidal composition are all higher than the prospective efficiency of the fungicidal efficiency which is calculated by the Colby formula and are averagely higher by 33%. The observed fungicidal efficiencies of the fungicidal composition are respectively higher than the coumoxystrobin by 48.06% and the kresoxim-methyl by 45.75%. The fungicidal compound is produced into a conventional pesticide preparation, is used for preventing various harmful fungi of fruit trees and grains, and has a good effect.
Description
Technical field
The invention belongs to agrochemicals bactericide field, relate to particularly a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-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.To apple valsa canker, rice blast, wheat scab, wheat powdery mildew, etc. pathogen 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, reuse for a long time on use in the field and may cause under many circumstances fungal bacterial strain to produce selectivity, described bacterial strain forms the resistance that adapts to SYP-3375, cause SYP-3375 to these fungi preventive effects reductions even invalid, causes disease to expand, crop failure, the agricultural chemicals waste.
Summary of the invention
The object of the invention is to provide a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl, is to form compound composition pesticide by SYP-3375 and kresoxim-methyl.The present composition is a kind of have bactericidal activity synergistic function, expansion fungicidal spectrum, the novel agricultural microbicide compositions that pathogenic bacteria are difficult to develop immunity to drugs, thus 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 object of the invention is to provide a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl, contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 1:50 ~ 50:1; More preferably the weight ratio of component A and B is 1:20 ~ 20:1; The weight ratio of further preferred A and B is 1:10 ~ 10:1.
The SYP-3375 structural formula is as follows:
Kresoxim-methyl (kresoxim-methyl), chemical name (be: E)-2-methoxyimino-[2-(o-methyl-benzene oxygen ylmethyl) phenyl] methyl acetate, structural formula is as follows:
Kresoxim-methyl is methoxy acrylic bactericide, is a kind of efficient, wide spectrum, new type bactericide.The diseases such as powdery mildew of strawberry, melon powdery mildew, powdery mildew of cucumber, pear scab had good preventive effect.Kresoxim-methyl not only has the bactericidal activity of wide spectrum, simultaneously with good protection and therapeutic action.With other bactericide commonly used without cross resistance, and longer than the conventional sterilization agent lasting period.Have the selectivity of height, to crop, people and animals and beneficial organism safety, substantially pollution-free to environment.
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.
Bactericidal composition of the present invention prepares according to a conventional method, gets according to the above ratio A, two kinds of active components of B, mixes-stir-shear-grind to reach 200 orders.
SYP-3375, kresoxim-methyl belong to methoxy acrylic bactericide, novel structure, mode of action uniqueness, but use separately, pathogenic bacteria easily produce the resistance of adaptation; Although above medicament belongs to the same class medicament, but possess different structure types and mechanism of action, the two composite can generation weakening to a greater extent the pathogen pesticide resistance, experimental results show that two kinds of variety classes bactericide in the present composition, enlarge fungicidal spectrum, simultaneously the control of disease formed remarkable synergistic function.
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 5-20%.
Present composition suspending agent preparation method: get bactericidal composition of the present invention, defoamer, emulsifier, xanthans, ethylene glycol and water by prescription and mix, stirred 15 minutes, sheared 15 minutes, keep again 30 ℃ in sand mill, grind more than 150 minutes to the active ingredient particle diameter less than 3 μ m and get final product.
Invention composite wettable powder preparation method: get 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 by prescription), White Carbon black and diatomite (or other filler) add various materials 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.
Present composition water dispersible granules preparation method: get bactericidal composition of the present invention by prescription; wetting agent (lauryl sodium sulfate or similar material); BX(dibutyl sodium sulfonate); polyvinyl alcohol (or other adhesive with same nature); White Carbon black and diatomite (or other filler); each component mixes in colter mixing mixer in will filling a prescription; 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 binder (xanthans or other binder); carry out granulation with Squeezinggranulator; 50 ℃ of-100 ℃ of lower low temperature dryings, namely obtain the water dispersible granules of this agricultural chemicals.
Administration form 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, can prevent and treat the fungal disease of the various plants such as various crop if trees, cereal, paddy rice, vegetables, lawn, flowers and tropical crop.Be particularly suitable for preventing and treating the following plants fungal disease: as apple valsa canker, rice blast, wheat scab, wheat powdery mildew, etc.
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:A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention, methoxy acrylic novel fungicides agent SYP-3375 is mixed mutually from the bactericide that similar extremely agent kresoxim-methyl has different fungicidal spectrums, weakened disease fungus SYP-3375 is produced resistance, the drug effect of having avoided therefore causing reduces.Simultaneously, because the synergistic function of bactericide makes bactericidal composition of the present invention be significantly increased to the preventive effect of disease.The germicidal efficiency that bactericidal composition of the present invention is observed all is higher than the efficient of the germicidal efficiency expection of using the calculating of Colby formula, on average is higher than 33%.The germicidal efficiency that agricultural bactericidal composition of the present invention is examined respectively average specific SYP-3375 is high by 48.06%, and is higher by 45.75% than kresoxim-methyl.
When concentration was 5.25mg/L, to wheat powdery mildew, the germicidal efficiency that agricultural bactericidal composition of the present invention is examined was 65.05%; During SYP-3375 100mg/L, the germicidal efficiency of observing only is 27.78%; When kresoxim-methyl was 200mg/L in concentration, the germicidal efficiency of observing only was 37.21%.The germicidal efficiency that agricultural bactericidal composition of the present invention is observed is higher by 34.27% than SYP-3375, and is higher by 27.84% than kresoxim-methyl.
When concentration was 40mg/L, to rice blast, the germicidal efficiency that agricultural bactericidal composition of the present invention is examined was 73.26%; When SYP-3375 was 100mg/L in concentration, the germicidal efficiency of observing only was 10.17%; When kresoxim-methyl was 200mg/L in concentration, the germicidal efficiency of observing only was 20.42%.The germicidal efficiency that agricultural bactericidal composition of the present invention is examined is higher by 63.09% than SYP-3375, and is higher by 52.84% than kresoxim-methyl.
When concentration was 40mg/L, to wheat scab, the germicidal efficiency that agricultural bactericidal composition of the present invention is observed was 75.36%; When SYP-3375 was 100mg/L in concentration, the germicidal efficiency of observing only was 18.30%; When kresoxim-methyl was 200mg/L in concentration, the germicidal efficiency of observing only was 20.87%.The germicidal efficiency that agricultural bactericidal composition of the present invention is observed is higher by 57.06% than SYP-3375, and is higher by 54.49% than kresoxim-methyl.
When concentration was 40mg/L, to apple valsa canker, the germicidal efficiency that agricultural bactericidal composition of the present invention is observed was 58.08%; When SYP-3375 was 100mg/L in concentration, the germicidal efficiency of observing only was 20.25%; When kresoxim-methyl was 200mg/L in concentration, the germicidal efficiency of observing only was 10.24%.The germicidal efficiency that agricultural bactericidal composition of the present invention is observed is higher by 37.83% than SYP-3375, and is higher by 47.84% than kresoxim-methyl.
Bactericidal composition of the present invention can be made the conventional pesticide preparation, is suitable for preventing and treating multiple harmful fungoid, can prevent and treat fruit tree, cereal fungal disease.
Embodiment
Embodiment 1A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 1:50;
The SYP-3375 structural formula is as follows:
Kresoxim-methyl (kresoxim-methyl), and chemical name (be: E)-2-methoxyimino-[2-(o-methyl-benzene oxygen ylmethyl) phenyl
] methyl acetate,Structural formula is as follows:
A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention prepares according to a conventional method, gets according to the above ratio A, two kinds of active components of B, mixes-stir-shear-grind to reach 200 orders.
Embodiment 2Plant the agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl, contain active component A, B, component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 50:1; Remaining is with embodiment 1.
Embodiment 3A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 1:20; Remaining is with embodiment 1.
Embodiment 4A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 1:20; Remaining is with embodiment 1.
Embodiment 5A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 1:10; Remaining is with embodiment 1.
Embodiment 6A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 10:1; Remaining is with embodiment 1.
Embodiment 7A kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 1:1; Remaining is with embodiment 1.
Embodiment 8A kind of agricultural bactericidal composition suspending agent that contains SYP-3375 and kresoxim-methyl, each weight percentages of components is as follows:
SYP-3375 and the kresoxim-methyl percetage by weight in suspending agent is 30 %, and the weight of SYP-3375 and kresoxim-methyl is 5:25;
Silicone defoaming agent 0.2 %;
Calcium dodecyl benzene sulfonate 8 %;
Xanthans 0.1 %;
Ethylene glycol 5%;
Water 56.7%.
Various components are mixed, stirred 15 minutes, sheared 15 minutes, keep 30 ℃ in sand mill, to grind more than 150 minutes, to the active ingredient particle diameter less than 3 μ m and get final product.
Embodiment 9A kind of agricultural bactericidal composition suspending agent that contains SYP-3375 and kresoxim-methyl, each weight percentages of components is as follows:
SYP-3375 and the kresoxim-methyl percetage by weight in suspending agent is 50%, and the weight of SYP-3375 and kresoxim-methyl is 10:40;
Lauryl sodium sulfate 0.5%;
Sodium lignin sulfonate 1.0%;
NNO 0.5%；
White Carbon black 3%;
Diatomite (or other filler) 45%.
Each component is added in the colter mixer successively, mixes, 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 suspending agent that contains SYP-3375 and kresoxim-methyl, each weight percentages of components is as follows:
SYP-3375 and the kresoxim-methyl percetage by weight in suspending agent is 60%, and the weight of SYP-3375 and kresoxim-methyl is 10:10;
Lauryl sodium sulfate 1%;
BX (pulling open powder) 4%;
Polyvinyl alcohol 1%;
White Carbon black 3%
Diatomite 31%.
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 binder, carry out granulation with Squeezinggranulator, 50 ℃ of-100 ℃ of lower low temperature dryings, namely obtain the water dispersible granules of this agricultural chemicals.
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 1-8 control wheat powdery mildew indoor pot experiments
Wheat breed is the Liao Dynasty's spring No. 10.Cultivate potted plant wheat seedling to two leaf stage in the greenhouse, the compositions formulated of drug concentration described in according to the form below concentration is used crops sprayer to carry out blade spraying and is processed, and drop but do not drip as degree gathers on the blade.Crop after the spraying is placed in the fume hood and dries, adopt behind the 24h spore method inoculation wheat powdery mildew pathogen spore [the grass family dlumeria graminis (
Blumeriagraminis)], place 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 wheat, calculate the fragrant bacterium ester of each reactive compound, the germicidal efficiency of kresoxim-methyl and the germicidal efficiency of the present composition.
Annotate: the germicidal efficiency of * for using the Colby formula to calculate.I in the table 2, II and table 1 are same.
(1) by table 2, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is higher than the 26.58-27.33% of the germicidal efficiency of calculating.
(2) by table 1 and table 2 contrast, when concentration is 5.25mg/L, to wheat powdery mildew, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is examined is 65.05%, during SYP-3375 100mg/L, the germicidal efficiency of observing only is 27.78%, and of the present invention a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 34.27% than SYP-3375.
(3) by table 1 and table 2 contrast, when concentration is 5.25 mg, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is 65.05%, when kresoxim-methyl is 200mg/L in concentration, the germicidal efficiency of observing only is 37.21%, and of the present invention a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 27.84% than kresoxim-methyl.
Application Example 9-15Control rice blast indoor pot experiment
Rice varieties is " more light ", and the rice cultivation seedling, is used crops sprayer that rice seedling is carried out blade spraying and processes according to drug concentration as described below to two leaf stage in the greenhouse, 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 is calculated the fragrant bacterium ester of each reactive compound, the germicidal efficiency of kresoxim-methyl and the germicidal efficiency of the present composition.
Annotate: the germicidal efficiency of the * of table 3 for using the Colby formula to calculate.The I of table 3, II and table 1 are same.
Annotate: the germicidal efficiency of the * of table 4 for using the Colby formula to calculate.The I of table 4, II and table 3 are same.
(1) by table 4, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is higher than the 20.46-43.26% of the germicidal efficiency of calculating.
(2) by table 3 and table 4 contrast, when concentration is 40mg/L, to control rice blast, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl is observed is 73.26%, when SYP-3375 is 100mg/L in concentration, the germicidal efficiency of observing only is 10.17%, and a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 63.09% than SYP-3375.
(3) by table 3 and table 4 contrast, when concentration is 40mg/L, to control rice blast, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is 73.26%, when kresoxim-methyl is 200mg/L in concentration, the germicidal efficiency of observing only is 20.42%, and of the present invention a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 52.84% than kresoxim-methyl.
Application Example 16-21Control the wheat scab indoor pot experiment
Wheat breed is the Liao Dynasty's spring No. 10.In the greenhouse, cultivate potted plant wheat seedling, after earing, the clip wheat head.The wheat head is carried out reagent spray process, the compositions formulated of drug concentration described in according to the form below concentration is used manual trunnion spraying to carry out wheat head spraying and is processed, and drop but do not drip as degree gathers on the wheat head.Crop after the spraying is placed in the fume hood and dries, behind the 24h with needle point method inoculation wheat scab pathogen spore suspension [this sickle of standing grain spore (
Fusarium graminearum)], place 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, investigate small ear sum and the morbidity spikelet number of each wheat head, calculate the incidence of disease, calculate the fragrant bacterium ester of each reactive compound, ester Fluoxastrobin, the germicidal efficiency of kresoxim-methyl and the germicidal efficiency of the present composition.
Annotate: the germicidal efficiency of (1) * for using the Colby formula to calculate.(2) I, II and table 1 are same.
Annotate: the germicidal efficiency of the * of table 6 for using the Colby formula to calculate.I, II and table 5 are same.
(1) can be calculated by table 6, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is higher than the germicidal efficiency 7.5-34.49% that fourth is calculated.
(2) by table 5 and table 6 contrast, when concentration is 40mg/L, to wheat scab, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is 75.36%, when SYP-3375 is 100mg/L in concentration, the germicidal efficiency of observing only is 18.30%, and of the present invention a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 57.06% than SYP-3375.
(3) by table 5 and table 6 contrast, when concentration is 40mg/L, to wheat scab, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is 75.36%, when kresoxim-methyl is 200mg/L in concentration, the germicidal efficiency of observing only is 20.87%, and of the present invention a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 54.49% than kresoxim-methyl.
Application Example22-27 prevents and treats the apple valsa canker laboratory test
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, dry after in different reagent agent solution, soaking 10s, place (temperature: 25 ℃) cultivation 15d in the incubator, investigation result is calculated the fragrant bacterium ester of each reactive compound, the germicidal efficiency of kresoxim-methyl and the germicidal efficiency of the present composition to infect size on the branch.
Annotate: the germicidal efficiency of (1) * for using the Colby formula to calculate.
Annotate: the germicidal efficiency of the * of table 8 for using the Colby formula to calculate.I, II and table 7 are same.
(1) can be calculated by table 8, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is higher than the germicidal efficiency 10.94-28.48% that fourth is calculated.
(2) by table 7 and table 8 contrast, when concentration is 40mg/L, to apple valsa canker, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is 58.08%, when SYP-3375 is 100mg/L in concentration, the germicidal efficiency of observing only is 20.25%, and of the present invention a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 37.83% than SYP-3375.
(3) by table 7 and table 8 contrast, when concentration is 40mg/L, to apple valsa canker, the germicidal efficiency that a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl of the present invention is observed is 58.08%, when kresoxim-methyl is 200mg/L in concentration, the germicidal efficiency of observing only is 10.24%, and of the present invention a kind of to contain the germicidal efficiency that SYP-3375 and the agricultural bactericidal composition of kresoxim-methyl observe higher by 47.84% than kresoxim-methyl.
Claims (4)
1. an agricultural bactericidal composition that contains SYP-3375 and kresoxim-methyl is characterized in that, contains active component A, B, and component A is SYP-3375, and B component is kresoxim-methyl, and the weight ratio of A and B is 1:50 ~ 50:1;
The SYP-3375 structural formula is as follows:
The structural formula of kresoxim-methyl is as follows:
。
2. according to a kind of agricultural bactericidal composition that contains SYP-3375 and kresoxim-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 bactericidal composition that contains SYP-3375 and kresoxim-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 bactericidal composition that contains SYP-3375 and kresoxim-methyl claimed in claim 1, it is characterized in that, the weight ratio of A and B is 1:1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106857565A (en) * | 2017-03-07 | 2017-06-20 | 南京华洲药业有限公司 | A kind of bactericidal composition and its application containing fluoxastrobin and SYP-3375 |
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| CN1869032A (en) * | 2005-05-26 | 2006-11-29 | 沈阳化工研究院 | Coumarin kind compound and its preparation and application |
| WO2010079176A2 (en) * | 2009-01-07 | 2010-07-15 | Basf Se | Pesticidal mixtures |
| WO2010146031A2 (en) * | 2009-06-16 | 2010-12-23 | Basf Se | Fungicidal mixtures |
| CN102283215A (en) * | 2011-08-31 | 2011-12-21 | 陕西上格之路生物科学有限公司 | Germicide composition containing coumoxystrobin |
| CN102578108A (en) * | 2012-02-20 | 2012-07-18 | 广西田园生化股份有限公司 | Bactericidal composition containing probenazole |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106857565A (en) * | 2017-03-07 | 2017-06-20 | 南京华洲药业有限公司 | A kind of bactericidal composition and its application containing fluoxastrobin and SYP-3375 |
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