CN103039449B - Bactericidal composition - Google Patents
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- CN103039449B CN103039449B CN201310012535.6A CN201310012535A CN103039449B CN 103039449 B CN103039449 B CN 103039449B CN 201310012535 A CN201310012535 A CN 201310012535A CN 103039449 B CN103039449 B CN 103039449B
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Abstract
The invention discloses a bactericidal composition. The active components of the bactericidal composition comprise coumoxystrobin and kasugamycin at the weigh ratio of (1:30)-(10:1). The bactericidal composition can be prepared into the agriculturally acceptable wettable powder and suspending agent. The bactericidal composition is reasonable in components and low in cost and has a good bactericidal effect, and the activity and bactericidal effect of the bactericidal composition are achieved not by the simple combination of the activity and the bactericidal effects of the components. Compared with the existing single preparation, the bactericidal composition has a significant synergistic effect in addition to the significant bactericidal effect, can slow down the generation of resistance, is low in residue, can not pollute the crops, is safe, conforms to the requirement for safety of a pesticide and has a significant prevention and treatment effect on rice blast and rice sheath blight.
Description
Patent application of the present invention is that invention and created name is a kind of bactericidal composition, and application number is 201110304831.4, and the applying date is the divisional application of 20111011 patent applications.
Technical field
The present invention relates to a kind of bactericidal composition, particularly the first active component SYP-3375, the bactericidal composition of the second active component thifluzamide, tricyclazole, Isoprothiolane, fenoxanil or kasugarnycin, belongs to technical field of compounded pesticide.
Background technology
Methoxy acrylic acid series bactericidal agent is in recent years bactericide kind newly developed, is a large milestone in bactericide field.Methoxy acrylic bactericide has unique mechanism of action, and it stops the ATP of cell synthetic by the electronics transmission of pinning between cytochrome b and c1, thereby suppresses its mitochondrial respiratory and bring into play bacteriostasis.The bacterial strain that 14-demethylation enzyme inhibitor, benzamides, dicarboxylic dihydrazides amine and benzimidazole is produced to resistance is effective.There is protection, treat, root out, infiltration, systemic activity, and can be in plant corpus, degraded very soon in soil and water.Although this series bactericidal agent mechanism of action uniqueness, the speed that pathogen produces resistance to it is also very fast, and use cost is high, uses so limited the spread of methoxy acrylic acid series bactericidal agent.
SYP-3375 is a kind of methoxy-methyl acrylate compounds, English common name: coumoxystrobin, chemical name: (E)-2-(2-((3-butyl-4-methyl-coumarin-7-Ji-oxygen base) methyl) phenyl)-3-methoxy-methyl acrylate.There is protection and therapeutic action; be a kind of disinfectant use in agriculture of high-efficiency broad spectrum, the plant disease causing by mastigomycetes, in conjunction with bacterium, sac fungi, basidiomycetes and imperfect fungus is had to good preventive effect as sclerotinia rot of colza, apple valsa canker, cucumber downy mildew, rice blast, sigatoka, alternaria leaf spot of apple etc.
Thifluzamide, trade name: full fringe, English common name: thifluzamide, the bromo-2-methyl-4-of chemical name: 2,6-bis-trifluoromethoxy-4-Trifluoromethyl-1,3-thiadiazoles-5-carbonyl acyl is for aniline.Thifluzamide belongs to thiazole amide bactericide, has strong interior conductivity and the long lasting effect of inhaling.Thifluzamide is succinate dehydrogenase inhibitor, the pathomycetes such as Rhizoctonia, Puccinia, Ustilago, Tilletia, corticium, nuclear cavity Pseudomonas are all had to activity, especially the fungus-caused disease of Basidiomycetes is had to special efficacy as banded sclerotial blight, damping off etc.
Tricyclazole, other titles: than gorgeous, three match azoles, gram pest spirit, Tricyclazole, English common name: tricyclazole, chemical name: 5-methyl isophthalic acid, 2,4-triazol-[3,4-b]-benzothiazole.There is the protectiveness triazole bactericidal agent of stronger interior absorption.Can be absorbed by the each position of paddy rice rapidly, the lasting period is long, efficacy stability, the low and anti-rain drop erosion of consumption.Be mainly used in the control of rice blast.
Isoprothiolane, has another name called Fujione, English common name: isoprothiolane, chemical name: diisopropyl-1,3-dithiolane-a-phenyl malonic ester.Isoprothiolane is efficient systemic fungicide, is the special effect agent of control rice blast.Rice blast is had to preventive and therapeutic action, can be absorbed by the each position of paddy rice, and be accumulated to leaf portion tissue, thus performance drug effect, and resistance of rainwater washing against has certain preventive effect to rice sheath blight disease and bacterial leaf-blight simultaneously.
Fenoxanil, English common name: fenoxanil, chemical name: N-(1-itrile group-1,2-dimethyl propyl)-2-(2,4-dichlorophenoxy) propionamide.Be one novel in preventing and treating the systemic fungicide of rice blast, there is novel mechanism of action, belong to melanin biosynthesis inhibitor (MBI), prevent and treat rice blast effect under water on blade face with while using splendid, and holding effect is remarkable.
Kasugarnycin, is again kasugarnycin, kasumin, English common name: kasugamycin, chemical name: (5-amino-2-methyl-6-2,3,4,5,6-hydroxy-cyclohexyl oxo) tetrahydropyran-3-base) amino-α-IMDA.Kasugarnycin is agricultural antibiotic, has stronger interior absorption, mainly disturbs amino acid whose metabolism esterase system, thereby affects the synthetic of protein, suppresses mycelia and extends and cause cell granulations, and the rice blast on paddy rice is had to excellent preventive effect and therapeutic action.
Although SYP-3375 is a kind of disinfectant use in agriculture of high-efficiency broad spectrum, it is as methoxy acrylic ester compounds, and the mechanism of action is single, reuses for a long time germ and can produce resistance in the application of field, cause preventive effect to reduce, and use cost is high.The control such as above-mentioned thifluzamide, tricyclazole, Isoprothiolane, fenoxanil, kasugarnycin rice blast, the special agricultural chemicals of banded sclerotial blight, the speed that pathogen produces resistance to it is also very fast, use for many years resistance to strengthen year by year, also there is no the technology report of these agricultural chemicals and SYP-3375 mixture at present.Inventor finds by test; by the SYP-3375s different mechanism of action and thifluzamide, tricyclazole, Isoprothiolane, fenoxanil, the bactericide compounded control rice blast of kasugarnycin and banded sclerotial blight; there is obvious synergistic effect; can significantly improve control efficiency, minimizing spraying times and the dosage for the treatment of, protection; slow down the generation of germ resistance; reduce cost accounting, high to crop safety.
Summary of the invention
The object of the present invention is to provide a kind of component reasonable, synergistic effect is remarkable, and bactericidal effect is good, and drug cost is low, is difficult for developing immunity to drugs, agricultural bactericidal composition to crop safety.
Another object of the present invention is to provide the application of above-mentioned composition in control rice blast, banded sclerotial blight.
In order to overcome the defect of existing unitary agent, technical scheme of the present invention is to solve like this:
A) the first active component is SYP-3375;
B) the second active component is thifluzamide, tricyclazole, Isoprothiolane, fenoxanil or kasugarnycin;
The weight ratio of the first active component and the second active component is 1:30～10:1, and preferred weight ratio is 1:20～5:1, and preferred weight ratio is 1:10～1:1, and most preferred weight ratio is 1:8～1:2.
The cumulant of the first active component and the second active component is 2%～90% of described composition total weight, be preferably 5%～50%, the size of active component cumulant is also relevant to pesticide combination and formulation, as the active component cumulant of SYP-3375 and kasugarnycin combination, is no more than 50%.
It is wetting powder, suspending agent that the present invention prevents and treats the preparation formulation that the agricultural bactericidal composition of rice blast, banded sclerotial blight can prepare according to the known method of those skilled in the art of the present technique.
To wetting powder, spendable auxiliary agent has: dispersant as in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate one or more; Wetting agent as in alkyl sulfate, alkylsulfonate, naphthalene sulfonate one or more; Filler as ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
To suspending agent, spendable auxiliary agent has: dispersant is produced as polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate formaldehyde condensation products (as dispersing agent NNO), Huntsman Corporation of the TERSPERSE 2020(U.S., alkyl naphthalene sulfonic acid salt) in one or more; Emulsifier is as Nongru-700 #(common name: alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this dish-60#(common name: Span60), Tween-60 #(common name: polyoxyethylene sorbitan stearate), agriculture breast 1601#(common name: triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), one or more in TERSPERSE 4894; Wetting agent as in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500 one or more; Thickener as in xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate one or more; Preservative as in formaldehyde, benzoic acid, Sodium Benzoate one or more; Defoamer is as organic silicon defoamer; Antifreezing agent as ethylene glycol, propane diols, glycerine, urea, inorganic salts as in sodium chloride one or more; Water is deionized water.
Component of the present invention is reasonable; treatment adds protective effect; bactericidal effect is good; reduce medication number of times, drug cost is low, and its active and bactericidal effect is not the simple superposition of each composition activity; but there is significant synergistic effect; can slow down the generation of resistance, good to crop safety, meet the security requirement of pesticidal preparations.The present invention has good control efficiency to rice sheath blight disease, rice blast.
Embodiment
In order to prevent and treat rice blast, the rice sheath blight disease in agricultural production, inventor has carried out mutual composite synergy research with SYP-3375 and thifluzamide, tricyclazole, Isoprothiolane, fenoxanil, kasugarnycin, and concrete grammar is:
Subjects is respectively Pyricularia oryzae (Pyriculariagrisea), Rhizoctonia solani Kuhn (Rhizoctonia solani).The former medicine of test medicine SYP-3375 adopts Jilin eight to reach the former medicine that agricultural chemicals Co., Ltd produces, the former medicine that thifluzamide, tricyclazole, Isoprothiolane, fenoxanil, the former medicine of kasugarnycin adopt respectively The Dow Agrosciences, LLC., Jiangsu Changqing Agricultural Chemistry Co., Ltd., Jiangsu Zhongqi Chemical Industry Co., Ltd, Fengdeng Pesticide Co., Ltd., Jiangsu, Shaanxi Lv Dun biological products Co., Ltd to produce.By technology department of Shanggezhilu Biosciences Co., Ltd., Shaanxi, former medicine is mixed with to the test medicine needing, test method is with reference to " People's Republic of China's agricultural industry criteria NY/T1156.2-2006 ".First single dose and each Mixed Pharmacy are arranged to 5 variable concentrations gradients (on the basis of preliminary experiment result, different with proportioning according to different medicament combinations, concentration gradient setting is also different, and bacteriostasis rate is pressed arithmetic series and set in 5%～90% scope).If clear water contrast, repeats 3 times.Adopt mycelial growth rate method, by cultured pathogen, be 5 mm card punch with diameter under aseptic condition, cuts bacterium cake from colony edge, bacterium cake is connected on the culture medium flat plate of different drug concentrations with transfer needle, puts in 26 ℃ of incubators and cultivate 72h; Check colony diameter, calculate the percentage that each chemicals treatment suppresses mycelial growth, by the linear regression analysis between the probit value of inhibiting rate and the logarithm value of series concentration, obtain the EC of each medicament
50value, with the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun mixture, evaluates the activity of reagent agent to germ with this.
The co-toxicity coefficient (CTC) >=120 of complex preparation shows as synergistic effect; CTC≤80 show as antagonism; 80 < CTC < 120 show as summation action.
Toxicity Determination result shows: SYP-3375 has good virulence as 1:30～10:1 is mixed to rice blast fungus, Rhizoctonia solani Kuhn take weight ratio with thifluzamide, tricyclazole, Isoprothiolane, fenoxanil or kasugarnycin, all has significant synergistic effect.
Below in conjunction with FORMULATION EXAMPLE and biological Examples, content of the present invention is described further.
FORMULATION EXAMPLE 1
Take 20% SYP-3375,20% thifluzamide, 4% dispersing agent NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 4% sodium lignin sulfonate, 2% Nekal BX (nekal), 2% K-12(lauryl sodium sulfate), attapulgite adds to 100% weight portion.Above-mentioned raw materials, through mixing, makes 40% SYP-3375 thifluzamide wetting powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and thifluzamide can change between 1:30～10:1, and both total weight items are still 40%, form new embodiment.
FORMULATION EXAMPLE 2
Take 15% SYP-3375,75% tricyclazole, 3% TERSPERSE 2700(polycarboxylate, Huntsman Corporation of the U.S. produces), 2%K-12, attapulgite add to 100% weight portion.Above-mentioned raw materials, through mixing, makes 90% SYP-3375 tricyclazole wettable powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and tricyclazole can change between 1:30～10:1, and both total weight items are still 90%, form new embodiment.
FORMULATION EXAMPLE 3
Take 12% SYP-3375,48% tricyclazole, 3% calcium lignosulfonate, 3% dispersing agent NNO, 2% Nekal BX, 2%K-12, White Carbon black and add to 100% weight portion.Above-mentioned raw materials, through mixing, makes 60% SYP-3375 tricyclazole wettable powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and tricyclazole can change between 1:30～10:1, and both total weight items are still 60%, form new embodiment.
FORMULATION EXAMPLE 4
Take 2% SYP-3375,60% Isoprothiolane, 4% calcium lignosulfonate, 3% TERSPERSE 2700,2% Nekal BX, 2%K-12,3% White Carbon black, kaolin and add to 100% weight portion.Above-mentioned raw materials, through mixing, makes 62% SYP-3375 Isoprothiolane wetting powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and Isoprothiolane can change between 1:30～10:1, and both total weight items are still 62%, form new embodiment.
FORMULATION EXAMPLE 5
Take 8% SYP-3375,56% Isoprothiolane, 3% TERSPERSE 2700,4% dispersing agent NNO, 2% Nekal BX, 2%K-12, attapulgite and add to 100% weight portion.Above-mentioned raw materials, through mixing, makes 64% SYP-3375 Isoprothiolane wetting powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and Isoprothiolane can change between 1:30～10:1, and both total weight items are still 64%, form new embodiment.
FORMULATION EXAMPLE 6
Take 15% SYP-3375,30% fenoxanil, 4% calcium lignosulfonate, 3% dispersing agent NNO, 1% Nekal BX, 1%K-12,3% White Carbon black, fine particle calcium carbonate and add to 100% weight portion.Above-mentioned raw materials, through mixing, makes 45% SYP-3375 fenoxanil wetting powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and fenoxanil can change between 1:30～10:1, and both total weight items are still 45%, form new embodiment.
FORMULATION EXAMPLE 7
Take 20% SYP-3375,2% kasugarnycin, 4% calcium lignosulfonate, 4% dispersing agent NNO, 2% Nekal BX, 2%K-12, kaolin and add to 100% weight portion.Above-mentioned raw materials, through mixing, makes 22% SYP-3375 kasugarnycin wetting powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and kasugarnycin can change between 1:30～10:1, and both total weight items are still 22%, form new embodiment.
FORMULATION EXAMPLE 8
Take 25% SYP-3375,5% kasugarnycin, 4% calcium lignosulfonate, 3% TERSPERSE 2700,2% Nekal BX, 2%K-12,3% White Carbon black, fine particle calcium carbonate and add to 100% weight portion.Above-mentioned raw materials, through mixing, makes 30% SYP-3375 kasugarnycin wetting powder after air-flow crushing.
In the present embodiment, the part by weight of SYP-3375 and kasugarnycin can change between 1:30～10:1, and both total weight items are still 30%, form new embodiment.
FORMULATION EXAMPLE 9
Take 22% SYP-3375,11% thifluzamide, 1% Huntsman Corporation of the TERSPERSE 2020(U.S. produces), 2% this dish-60#, 4% Tween-60 #, 1% Huntsman Corporation of the TERSPERSE 2500(U.S. produce), 0.3% xanthans, 5% ethylene glycol, 0.5% benzoic acid, 0.5% silicone defoaming agent (trade name: s-29 Nanjing "four news" (new ideas applied chemistry product company product), deionized water add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 33% SYP-3375 thifluzamide suspending agent after sand mill sand milling.
In the present embodiment, the part by weight of SYP-3375 and thifluzamide can change between 1:30～10:1, and both total weight items are still 33%, form new embodiment.
FORMULATION EXAMPLE 10
Take 24% SYP-3375,8% thifluzamide, 1%TERSPERSE 2020,3% agriculture breast 1601#, 2% agriculture breast 2201#, 1%TERSPERSE 2500,0.3% xanthans, 5% ethylene glycol, 0.5% formaldehyde, 0.5% silicone defoaming agent, deionized water and add to 100% weight portion.High speed shear is disperseed 30min, with making 32% SYP-3375 thifluzamide suspending agent after sand mill sand milling.
In the present embodiment, the part by weight of SYP-3375 and thifluzamide can change between 1:30～10:1, and both total weight items are still 32%, form new embodiment.
FORMULATION EXAMPLE 11
Take 7% SYP-3375,35% tricyclazole, 4%TERSPERSE 4894,1.5%TERSPERSE 2500,1%TERSPERSE 2020,0.2% aluminium-magnesium silicate, 5% ethylene glycol, 0.5% formaldehyde, 0.5% silicone defoaming agent, deionized water and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 42% SYP-3375 tricyclazole suspending agent after sand mill sand milling.
In the present embodiment, the part by weight of SYP-3375 and tricyclazole can change between 1:30～10:1, and both total weight items are still 42%, form new embodiment.
FORMULATION EXAMPLE 12
Take 4% SYP-3375,40% Isoprothiolane, 1%TERSPERSE 2020,2% this dish-60#, 3% Tween-60 #, 3% agriculture breast 1601#, 1%TERSPERSE 2500,0.3% xanthans, 5% ethylene glycol, 0.5% benzoic acid, 0.5% silicone defoaming agent, deionized water adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 44% SYP-3375 Isoprothiolane suspending agent after sand mill sand milling.
In the present embodiment, the part by weight of SYP-3375 and Isoprothiolane can change between 1:30～10:1, and both total weight items are still 44%, form new embodiment.
FORMULATION EXAMPLE 13
Take 9% SYP-3375,27% fenoxanil, 1%TERSPERSE 2020,3% agriculture breast 1601#, 3% agriculture breast 2201#, 1%TERSPERSE 2500,0.3% xanthans, 5% ethylene glycol, 0.5% formaldehyde, 0.5% silicone defoaming agent, deionized water and add to 100% weight portion.High speed shear is disperseed 30min, with making 36% SYP-3375 fenoxanil suspending agent after sand mill sand milling.
In the present embodiment, the part by weight of SYP-3375 and fenoxanil can change between 1:30～10:1, and both total weight items are still 36%, form new embodiment.
FORMULATION EXAMPLE 14
Take 6% SYP-3375,36% fenoxanil, 3% Huntsman Corporation of the TERSPERSE 4894(U.S. produces), 2% Nongru-700 #, 1.5%TERSPERSE 2500,1%TERSPERSE 2020,0.2% aluminium-magnesium silicate, 5% ethylene glycol, 0.5% formaldehyde, 0.5% silicone defoaming agent, deionized water add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 42% SYP-3375 fenoxanil suspending agent after sand mill sand milling.
In the present embodiment, the part by weight of SYP-3375 and fenoxanil can change between 1:30～10:1, and both total weight items are still 42%, form new embodiment.
FORMULATION EXAMPLE 15
Take 2% SYP-3375,3% kasugarnycin, 4%TERSPERSE 4894,2%TERSPERSE 2500,1%TERSPERSE 2020,0.2% xanthans, 5% propane diols, 0.5% benzoic acid, 0.5% silicone defoaming agent, deionized water and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 5% SYP-3375 kasugarnycin suspending agent after sand mill sand milling.
In the present embodiment, the part by weight of SYP-3375 and kasugarnycin can change between 1:30～10:1, and both total weight items are still 5%, form new embodiment.
Biological Examples 1: control rice blast field trial
Within 2010, carried out FORMULATION EXAMPLE 1(40% SYP-3375 thifluzamide wetting powder in Xiuqian City of Jiangsu Province), FORMULATION EXAMPLE 2(90% SYP-3375 tricyclazole wettable powder), FORMULATION EXAMPLE 12(44% SYP-3375 Isoprothiolane suspending agent), FORMULATION EXAMPLE 13(36% SYP-3375 fenoxanil suspending agent), FORMULATION EXAMPLE 8(30% SYP-3375 kasugarnycin wetting powder) control rice blast field trial, verify control efficiency, effective dose and the safety to paddy rice of this medicament to rice blast.Trial crops is paddy rice, and controlling object is rice blast (Pyricularia oryzae Cav.).Test is located at Siyang County, Xiuqian City, and test medicine and dosage refer to table 11.Separately establish blank, every processing repeats for 4 times, every community area 30 ㎡, and Gong88Ge community, random district group is arranged.Adopt conventional spray-on process, mu dispenser liquid 60kg, evenly sprays paddy rice complete stool.Altogether dispenser 2 times, paddy rice booting latter stage and the each dispenser of full heading time 1 time.
Investigation and statistical method:
Investigation in 14 days after the 2nd dispenser, the sampling of 5 of investigation method Wei Mei communities, every some investigation 50 fringes, grade scale is as follows:
0 grade: anosis;
1 grade: every fringe loss is (morbidity of indivedual branch stalk) below 5%;
3 grades: every fringe loss 6%-20% (1/3 left and right branch stalk morbidity);
5 grades: every fringe loss 21%-50% (fringe neck or main shaft morbidity, grain half is flat);
7 grades: every fringe loss 51%-70% (morbidity of fringe neck, most of shrivelled kernel);
9 grades: every fringe loss 71%-100% (morbidity of fringe neck, causes dead ears).
Refer to calculate preventive effect according to disease.After each spray medicine after the 1st day and medicine some days, observe medicament and respectively process the impact on paddy rice.
Disease index=[Σ (sick spike number × relative level numerical value at different levels)/investigate total spike number × 9] × 100%
Control efficiency (%)=[(contrast disease index-processing disease index)/contrast disease index] × 100.
Carry out biostatistics Epidemiological Analysis (in table 11) by Dui Ge community preventive effect, significance of difference comparative result shows: consistent with the significance of difference in 0.01 level in 0.05 level, and 40% SYP-3375 thifluzamide wetting powder 15g/667 ㎡, 12g/667 ㎡, 9g/667 ㎡; 90% SYP-3375 tricyclazole wettable powder 18g/667 ㎡, 15g/667 ㎡, 12g/667 ㎡; 44% SYP-3375 Isoprothiolane suspending agent 70g/667 ㎡, 60g/667 ㎡, 50g/667 ㎡; 36% SYP-3375 fenoxanil suspending agent 30g/667 ㎡, 25g/667 ㎡, 20g/667 ㎡; 30% SYP-3375 kasugarnycin wetting powder 18g/667 ㎡, 15g/667 ㎡, 12g/667 ㎡; Significant difference between three various dose of these 5 kinds of medicaments, all extremely remarkable with SYP-3375 suspending agent 25g/667 ㎡, 20% thifluzamide suspending agent 25g/667 ㎡, 75% tricyclazole wettable powder 25g/667 ㎡, 40% Isoprothiolane missible oil 100g/667 ㎡, 40% fenoxanil suspending agent 50g/667 ㎡, 6% kasugarnycin wetting powder 50g/667 ㎡ difference; Between SYP-3375 suspending agent 25g/667 ㎡, 20% thifluzamide suspending agent 25g/667 ㎡, 75% tricyclazole wettable powder 25g/667 ㎡, 40% Isoprothiolane missible oil 100g/667 ㎡, 40% fenoxanil suspending agent 50g/667 ㎡, 6% kasugarnycin wetting powder 50g/667 ㎡, difference is not remarkable.
Field test results shows: 40% SYP-3375 thifluzamide wetting powder 15g/667 ㎡, 12g/667 ㎡, 9g/667 ㎡, 90% SYP-3375 tricyclazole wettable powder 18g/667 ㎡, 15g/667 ㎡, 12g/667 ㎡, 44% SYP-3375 Isoprothiolane suspending agent 70g/667 ㎡, 60g/667 ㎡, 50g/667 ㎡, 36% SYP-3375 fenoxanil suspending agent 30g/667 ㎡, 25g/667 ㎡, 20g/667 ㎡, 30% SYP-3375 kasugarnycin wetting powder 18g/667 ㎡, 15g/667 ㎡, 12g/667 ㎡ has more significant control efficiency to rice blast, obviously be better than SYP-3375 suspending agent 25g/667 ㎡, 20% thifluzamide suspending agent 25g/667 ㎡, 75% tricyclazole wettable powder 25g/667 ㎡, 40% Isoprothiolane missible oil 100g/667 ㎡, 40% fenoxanil suspending agent 50g/667 ㎡, the control efficiency of 6% kasugarnycin wetting powder 50g/667 ㎡ to rice blast.
To the security survey of paddy rice, within after spray medicine after the 1st day and medicine some days, to observe, each test is processed paddy rice is occurred without poisoning phenomenon.
Result of the test shows after SYP-3375 and thifluzamide, tricyclazole, Isoprothiolane, fenoxanil, kasugarnycin mixture, obviously improve the control efficiency to rice blast, having reduced dosage and drug cost, to paddy growth safety, is the desirable medicament of control rice blast.
Biological Examples 2: prevent and treat rice sheath blight disease field trial
Within 2010, carried out FORMULATION EXAMPLE 9(33% SYP-3375 thifluzamide suspending agent in Rudong County of Jiangsu Province), FORMULATION EXAMPLE 3(60% SYP-3375 tricyclazole wettable powder), FORMULATION EXAMPLE 12(44% SYP-3375 Isoprothiolane suspending agent), FORMULATION EXAMPLE 6(45% SYP-3375 fenoxanil wetting powder), FORMULATION EXAMPLE 7(22% SYP-3375 kasugarnycin wetting powder) prevent and treat rice sheath blight disease field trial, verified control efficiency, effective dose and the safety to paddy rice of this medicament to rice sheath blight disease.Test method is with reference to " GB/T 17980.20-2000 pesticide field efficacy medicine test criterion () bactericidal agent for preventing and treating rice sheath blight disease ".Trial crops is paddy rice, and controlling object is rice sheath blight disease (Rhizoctonia solani).Test is located at Hunan village, Ma Tang town, Rudong County one peasant household's farmland covered by contract.Rice varieties is " southern round-grained rice 44 ", dry-raising and sparse-planting.Before test, do not use the bactericide of preventing and treating banded sclerotial blight, paddy rice growing way balance, field rich water quality management is consistent.Altogether dispenser 2 times, the 1st time in booting stage (August 20), and medicine is sprayed at interval for 14 days again the 2nd time, and water consumption is 60kg/667 ㎡, adopts manual sprayer evenly to spray.Test medicine and dosage refer to table 12.Separately establish blank, every processing repeats for 4 times, every community area 25 ㎡, and Gong88Ge community, random district group is arranged.
Investigation and statistical method, carry out efficacy survey for 14 days after the 2nd dispenser.5 samplings of every community diagonal, every is connected 5 clumps, totally 25 clumps, records total strain number, diseased plant number and sick progression.According to rice leaf sheath and blade Harm level classification, take strain as unit.Duration of test is irregularly observed each treatment region rice leaf growth, heading flowering, Grain Filling situation.
0 grade: complete stool is anosis;
1 grade: quaterfoil and following leaf sheath thereof, blade morbidity (take sword-like leave as first leaf);
3 grades: the 3rd blade and following leaf sheath thereof, blade morbidity;
5 grades: the second blade and following leaf sheath thereof, blade morbidity;
7 grades: sword-like leave blade and following leaf sheath thereof, blade morbidity;
9 grades: complete stool morbidity, withered ahead of time.
Calculate disease index and control efficiency according to recording incidence.
Diseased plant rate (%)=(morbidity strain number/investigate total strain number) × 100
Disease index=[∑ (diseased plant number × relative level numerical value at different levels)/(investigating total strain number × 9)] × 100
Control efficiency (%)=[(contrast disease index-processing disease index)/contrast disease index] × 100.
Field test results shows, 33% SYP-3375 thifluzamide suspending agent, 60% SYP-3375 tricyclazole wettable powder, 44% SYP-3375 Isoprothiolane suspending agent, 45% SYP-3375 fenoxanil wetting powder, 22% SYP-3375 kasugarnycin WP on Rice banded sclerotial blight have good control efficiency, and consumption is respectively 18g/667 ㎡, 15g/667 ㎡, 12g/667 ㎡; 25g/667 ㎡, 20g/667 ㎡, 15g/667 ㎡; 70g/667 ㎡, 60g/667 ㎡, 50g/667 ㎡; 25g/667 ㎡, 20g/667 ㎡, 15g/667 ㎡; 23g/667 ㎡, 20g/667 ㎡, 17g/667 ㎡; To rice sheath blight disease for the second time after medicine the preventive effect of 14 days be respectively 91.26%, 88.57%, 86.45%; 87.27%, 85.26%, 83.81%; 85.46%, 83.76%, 81.12%; 87.58%, 84.33%, 82.41%; 89.08%, 86.34%, 84.69%; Obviously be better than 20% SYP-3375 suspending agent 25g/667 ㎡, 20% thifluzamide suspending agent 25g/667 ㎡, 75% tricyclazole wettable powder 25g/667 ㎡, 40% Isoprothiolane missible oil 100g/667 ㎡, 40% fenoxanil suspending agent 50g/667 ㎡, the preventive effect (table 12) of 2% kasugarnycin aqua 150g/667 ㎡ to rice sheath blight disease.
To the security survey of paddy rice, according to irregularly observing after medicine, the birth indexes such as each medication district rice leaf growth, heading flowering, Grain Filling and blank district do not have notable difference, without symptom of chemical damage.
Result of the test shows after SYP-3375 and thifluzamide, tricyclazole, Isoprothiolane, fenoxanil, kasugarnycin mixture, obviously improve the control efficiency to rice sheath blight disease, having reduced dosage and drug cost, to paddy growth safety, is the desirable medicament of preventing and treating rice sheath blight disease.
In sum, composition of the present invention is to adopt two kinds of active component compound schemes, its activity and bactericidal effect are not the simple superposition of each composition activity, compared with existing unitary agent, except having significant bactericidal effect, and there is a significant synergistic effect, slow down the generation of resistance, preparation less residue, pollution-free to crop, safety is good, meets the security requirement of pesticidal preparations.
Claims (8)
1. a bactericidal composition, is characterized in that active component is made up of SYP-3375 and kasugarnycin, and the weight ratio of SYP-3375 and kasugarnycin is 1:30～10:1.
2. bactericidal composition according to claim 1, is characterized in that: the weight ratio of SYP-3375 and kasugarnycin is 1:20～5:1.
3. bactericidal composition according to claim 2, is characterized in that: the weight ratio of SYP-3375 and kasugarnycin is 1:10～1:1.
4. bactericidal composition according to claim 3, is characterized in that: the weight ratio of SYP-3375 and kasugarnycin is 1:8～1:2.
5. bactericidal composition according to claim 1, is characterized in that: the cumulant of SYP-3375 and kasugarnycin is described composition total weight 2%～90%.
6. bactericidal composition according to claim 5, is characterized in that: the cumulant of SYP-3375 and kasugarnycin is described composition total weight 5%～50%.
7. bactericidal composition according to claim 1, is characterized in that: described composition is wetting powder, suspending agent.
8. the purposes of bactericidal composition claimed in claim 1 in control rice blast, rice sheath blight disease.
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| CN101984813A (en) * | 2010-12-14 | 2011-03-16 | 江苏省绿盾植保农药实验有限公司 | Bactericide containing ZJ0712 and kasugamycin |
| CN102204552A (en) * | 2011-04-09 | 2011-10-05 | 陕西汤普森生物科技有限公司 | Antibacterial composition containing enestroburin and antibiotic compound |
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| CN101984813A (en) * | 2010-12-14 | 2011-03-16 | 江苏省绿盾植保农药实验有限公司 | Bactericide containing ZJ0712 and kasugamycin |
| CN102204552A (en) * | 2011-04-09 | 2011-10-05 | 陕西汤普森生物科技有限公司 | Antibacterial composition containing enestroburin and antibiotic compound |
Non-Patent Citations (1)
| Title |
|---|
| 李淼等.丁香菌酯（SYP-3375)的设计、合成及杀菌活性.《农药学学报》.2010,第12卷(第4期),第453-457页. * |
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Effective date of registration: 20170125 Address after: 136100 Gongzhuling national agricultural science and Technology Park in Jilin province Nan Wei Zi Zhen Jie Dong Patentee after: Jilin Bada Pesticide Co., Ltd. Address before: 9 No. 710404 Shaanxi province Xi'an Zhouzhi County of Jixian City Industrial Park Venture Road Patentee before: Shanggezhilu Biosciences Co., Ltd., Shaanxi |