CN103907617A - Bactericidal composition containing isopyrazam and difenoconazole and application thereof - Google Patents
Bactericidal composition containing isopyrazam and difenoconazole and application thereof Download PDFInfo
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- CN103907617A CN103907617A CN201210599181.5A CN201210599181A CN103907617A CN 103907617 A CN103907617 A CN 103907617A CN 201210599181 A CN201210599181 A CN 201210599181A CN 103907617 A CN103907617 A CN 103907617A
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- difenoconazole
- bacterium amine
- naphthalene bacterium
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Abstract
The invention discloses a bactericidal composition containing isopyrazam and difenoconazole and an application thereof. The bactericidal composition takes isopyrazam and difenoconazole as main effective components, wherein the weight ratio of isopyrazam to difenoconazole is 1-60:1-85. The bactericidal composition can be applied in prevention and treatment of diseases of cereal crops, vegetables and fruit plants, has relatively high collaborative synergistic effect, overcomes and delays the drug resistance of pathogenic bacteria, is fast in bactericidal speed and longer in lasting period, reduces the cost of application, and has the prevention and treatment effects superior to a single agent. The bactericidal composition can be used for prevention and treatment of fungal diseases of crops, especially can be applied for prevention and treatment of rust disease, powdery mildew, leaf spot, net blotch, glume blight, smut, anthracnose, early blight, damping-off disease and other fungal diseases, and has the effects better than single-agent use.
Description
Technical field:
The present invention relates to a kind of bactericidal composition and uses thereof, especially a kind of bactericidal composition and application thereof take pyrazoles naphthalene bacterium amine and Difenoconazole as main active.
Background technology
Pyrazoles naphthalene bacterium amine (Isopyrazam), chemical name: 3-difluoromethyl-1-methyl-N-[1,2,3,4-tetrahydrochysene-9-(1-Methylethyl)-Isosorbide-5-Nitrae-methanonaphthalen-5-yl]-1H-pyrazole-4-carboxamide, molecular formula C
20h
23f
2n
3o, pyrazoles naphthalene bacterium amine (Isopyrazam) has following four kinds of isomer, the mixing that the present invention comprises any one or a few, chemical structural formula is as follows respectively:
The exploitation of pyrazoles naphthalene Jun Anshiyou Syngenta Co.,Ltd, this bactericide has broad spectrum of activity, multiple diseases in various crop is all had to the outstanding performance of preventing and treating, efficient to triazole type and methoxy acrylic resistant strain germ, especially very efficient to Septoria (Septoria) fungi, as the preventive effect of wheat rust and barley rust rot is all better than to epoxiconazole.This bactericide is take protective effect as main, but in field trial, also demonstrates certain therapeutic action, and its lasting period is long, and dispenser still shows positive effect after 7 weeks, and the protection period is longer about 2 weeks than triazole bactericidal agent.The market orientation of pyrazoles naphthalene bacterium amine comprises the disease on fruit tree, vegetables and cereal.
Difenoconazole (Difenoconazole), chemical name: suitable, the chloro-4-[4-methyl-2-1H-1 of trans-3-, 2,4-triazol-1-yl methyl)-1, the mute pentane-2-of 3-bis-yl) phenyl 4-chlorphenyl ether, molecular formula is C
19h
17cl
2n
3o
3, structural formula:
Difenoconazole has protection, treatment and systemic activity, is sterol demethylation inhibitor, suppresses the biosynthesis of cell wall sterol, stops the growth of fungi.Fungicidal spectrum is wide, and leaf surface treatment or seed treatment can improve output and the guaranteed quality of crop.Be widely used in the crop such as fruit tree, vegetables, effectively prevent and treat scab, anthrachose of grape, white rot, spot defoliation, powdery mildew, brown spot, rust, yellow rust, head blight etc.
Triazole bactericidal agent is the bactericide kind that China's applicating history is grown, play an important role on as the control of powdery mildew, rust etc. in crop pest, although triazole type medicament is still in large-area use at present, but there is decline by a relatively large margin to the susceptibility of such medicament in bacterial strain, the using dosage in field improves gradually, environment and resistance have been produced to larger pressure, therefore should carry out correlative study and slow down the generation of resistance, be main direction of studying and adopt the pharmacy mix of different mechanism.
Present stage is increasing for the difficulty of prevention and cure of corps diseases, and on the one hand, along with the change of pattern of farming, the disease occurrence degree of melon and fruit, vegetables, cereal crop, generation quantity all increase, and are are objectively preventing and treating difficulty increasing; On the other hand, SM causes the resistance of pathogen to rise year by year under lasting medicament selection pressure, and the control efficiency of single dose is had a greatly reduced quality; The 3rd, the speed to introduce of new varieties of pesticides obviously declines at present, and lacks new action target medicament; The 4th, strict gradually due to environmental requirement, portioned product is limited to use, and causes medication selectivity to become less.In a word, how effectively plant disease being prevented and treated is the important topic that vast plant protection work person faces.
Summary of the invention:
The object of the invention is for above-mentioned technical problem provide a kind of applied widely, cost is low, the effective plant bactericidal composition containing pyrazoles naphthalene bacterium amine and Difenoconazole.
A further object of the invention is to provide this bactericidal composition and causes the application on fungal disease control sac fungi, basidiomycetes, imperfect fungus and Oomycete fungi, especially on the fungal diseases such as control rust, powdery mildew, leaf spot, net blotch, glume blight, smut, anthracnose, early blight, damping off purposes.
The object of the invention is to realize by following measures:
A kind of bactericidal composition, it contains pyrazoles naphthalene bacterium amine and Difenoconazole, and wherein pyrazoles naphthalene bacterium amine and Difenoconazole weight ratio are 1 ~ 60:1 ~ 85, and wherein in bactericidal composition, effective ingredient is present in composition with synergy effective dose.
Described bactericidal composition, wherein pyrazoles naphthalene bacterium amine and Difenoconazole weight ratio are preferably 3 ~ 30:5 ~ 65, more preferably 3 ~ 25:5 ~ 30, particularly preferably 1:0.2 ~ 10.
In the present composition, the two percentage by weight that accounts for composition of pyrazoles naphthalene bacterium amine and Difenoconazole is 2-90%.Be preferably 5-60%, further preferred 8-50%, particularly preferably 20-40%.
Described bactericidal composition, wherein pyrazoles naphthalene bacterium amine and Difenoconazole and known auxiliary agent and excipient are re-dubbed any one formulation allowing on agricultural chemicals, the preferred missible oil of described formulation, suspending agent, wetting powder, aqueous emulsion, microemulsion and water dispersion granule.
These known auxiliary agents, excipients have emulsifier, wetting dispersing agent, suspending agent, defoamer, disintegrant, binding agent etc.
The described emulsifier can be applicable in insecticides adjuvant of the present invention comprises but is not limited to calcium dodecyl benzene sulfonate, the rare block compound of polyoxyethylene polyoxy third, castor oil polyoxyethylene ether, alkylphenol polyoxyethylene polyethenoxy ether, Ben-zylphenol Polyoxyethyl Ether, phenethyl phenol polyethenoxy ether, fatty alcohol-polyoxyethylene ether, phenethyl phenol polyethenoxy ether polyethenoxy ether, alkylphenol polyoxyethylene formaldehyde condensation products etc., and the phosphate of above-mentioned wherein part material and in and salt.Concrete kind is as serial in: agriculture breast 500# series, 600# series, 400# series, 1600# series, NP series, OP series, AEO series, By series, this dish series, tween etc.
The described wetting dispersing agent can be applicable in insecticides adjuvant of the present invention includes, but are not limited to one or more in sodium lignin sulfonate, calcium lignosulfonate, alkylnaphthalene sulfonate, alkylnaphthalene sulfonate formaldehyde condensation products, Abietyl quaternary ammonium salt, alkylphenol polyoxyethylene phosphate, saponin, the withered powder of tea, fatty alcohol polyoxyethylene ether sulfate, lauryl sodium sulfate, neopelex, polycarboxylic acid salt and high molecular comb shape compound etc.
It is described that to can be applicable to excipient of the present invention be one or more in water, solvent or filler.
Described solvent includes, but are not limited to one or more of toluene, dimethylbenzene, solvent naphtha series, mixed methylnaphthalene, turpentine oil, vegetable oil, methyl oleate, carrene, chloroform, methyl alcohol, ethanol, isopropyl alcohol, n-butanol, cyclohexanone, isophorone, pyrrolidones, tetrahydrofurfuryl alcohol, acetic acid dimethyl ester, acetophenone, ethyl acetate, dimethyl formamide, dimethyl sulfoxide (DMSO) etc.
Described filler is selected from one or more of white carbon, kaolin, precipitated calcium carbonate, diatomite, corn starch, quartz sand, talcum powder, ammonium sulfate, sodium sulphate, sodium chloride, potassium chloride etc.
As required, also can add the functional aids such as antifreezing agent, thickener, stabilizing agent, defoamer
Described antifreezing agent is selected from one or more of ethylene glycol, propane diols, urea, diethylene glycol (DEG), glycerine etc.
Described thickener is selected from one or more of xanthans, polyvinyl alcohol, bentonite, CMC, aluminium-magnesium silicate.
The application of described bactericidal composition aspect control cereal crop disease.
Beneficial effect of the present invention:
1, the present invention's pyrazoles naphthalene bacterium amine used is novel pyrazole acid amides bactericide, and Difenoconazole is triazole bactericidal agent, and the different mixtures mutually of action target can not produce low touching, can Synergistic, reduce dosage, and reduce costs.
2, the present composition scope of application increases, be applicable to prevent and treat the crop pest of Cereal, various melon and fruit, vegetables, particularly prevent and treat the disease of paddy rice, wheat, barley, oat, rye, corn, Chinese sorghum, horticultural crop and vegetables etc., as wheat rust, wheat powdery mildew, large wheat rust, wheat net blotch, take-all, barley leaf blotch, wheat leaf blight, maize head smut, early blight of tomato, cotton seedling blight etc.
Bactericidal composition of the present invention has good control efficiency to sac fungi, basidiomycetes, imperfect fungus and Oomycete fungal disease; Reduce because Synergistic causes consumption, can unitary agent (pyrazoles naphthalene bacterium amine and Difenoconazole are arbitrary) be developed immunity to drugs Antifungi.
Bactericidal composition of the present invention is prevented and treated the application on resistance fungi in preparation, especially all has significant effect in the application of control rust, powdery mildew, leaf spot, net blotch, glume blight, smut, anthracnose, early blight, damping off.Above-mentioned bactericidal composition can produce higher synergistic function, and the consumption of the independent reactive compound of amount ratio of this mixture reduces greatly, and the activity of mixture is greater than the activity of independent component." % " of the present invention is mass percent.
Compared with prior art beneficial effect of the present invention: (1) is compared with single dose, said composition antagonism fungal disease has obvious synergistic function as fungal diseases such as rust, powdery mildew, leaf spot, net blotch, glume blight, smut, anthracnose, early blight, damping offs, overcome and delayed pesticide resistance, expanding prevention spectrum, has obviously improved control efficiency; (2) reduce control recruitment, drug cost; (3) alternative routine and the easily agricultural chemicals of generation resistance; (4), compared with single dose, produce and use cost reduction; (5) the drug-fast generation of Antifungi, its successful uses higher than its single dose.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and in embodiment, the preparation method of formulation is conventional laboratory's formulation method.
Two kinds of reactive compounds can be processed into any one formulation of permission, and below with two kinds of preparations that active ingredient is processed into of specific embodiment explanation, but the preparation that these two kinds of active components can be processed is not limited only to following listed.
Embodiment 1:
By pyrazoles naphthalene bacterium amine 3g, Difenoconazole 30g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO (sodium methylene bis-naphthalene sulfonate) 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 33% wetting powder.
Embodiment 2:
By pyrazoles naphthalene bacterium amine 5g, Difenoconazole 25g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 30% wetting powder.
Embodiment 3:
By pyrazoles naphthalene bacterium amine 15g, Difenoconazole 15g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 30% wetting powder.
Embodiment 4:
Take pyrazoles naphthalene bacterium amine 20g, Difenoconazole 10g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 30% wetting powder.
Embodiment 5:
Take pyrazoles naphthalene bacterium amine 25g, Difenoconazole 5g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and making main active ingredient weight percentage is 30% wetting powder.
Embodiment 6:
Take 1g pyrazoles naphthalene bacterium amine, 5g Difenoconazole, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, isopropyl alcohol 13g, adds water to 100g.The method of above raw material being prepared routinely to aqueous emulsion drops into the mixing of mixing kettle high speed, and making main active ingredient weight percentage is 6% pyrazoles naphthalene bacterium amine-difenoconazole water emulsion.
Embodiment 7:
Take 50g pyrazoles naphthalene bacterium amine, 20g Difenoconazole, sodium lignin sulfonate 8g, polycarboxylate salt dispersant 2g, lauryl sodium sulfate 1g, ammonium sulfate 5g, corn starch complement to 100g.The method that above raw material is prepared to water dispersion granule routinely first mixes, cross air-flow crushing afterwards, finally mediate granulation, and making main active ingredient weight percentage is 70% pyrazoles naphthalene bacterium amine-Difenoconazole water dispersion granule.
Embodiment 8:
Take 2g pyrazoles naphthalene bacterium amine, 40g Difenoconazole, sodium lignin sulfonate 8g, polycarboxylate salt dispersant 2g, lauryl sodium sulfate 1g, ammonium sulfate 5g, corn starch complement to 100g.The method that above raw material is prepared to water dispersion granule routinely first mixes, cross air-flow crushing afterwards, finally mediate granulation, and making main active ingredient weight percentage is 42% pyrazoles naphthalene bacterium amine-Difenoconazole water dispersion granule.
Embodiment 9:
Take 5g pyrazoles naphthalene bacterium amine, 20g Difenoconazole, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, isopropyl alcohol 10g, adds water to 100g.The method that above raw material is prepared to microemulsion routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 25% pyrazoles naphthalene bacterium amine-micro-emulsion of phenyl ether methyl cyclic-azole.
Embodiment 10:
Take 5g pyrazoles naphthalene bacterium amine, 0.5g Difenoconazole, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether 7g, add dimethylbenzene to 100g.The method that above raw material is prepared to missible oil routinely drops in mixing kettle mixes, and making main active ingredient weight percentage is 5.5% pyrazoles naphthalene bacterium amine-Difenoconazole missible oil.
Embodiment 11:
Take 5g pyrazoles naphthalene bacterium amine, 30g Difenoconazole, lignin 2g, polyoxyethylene poly-oxygen propylene aether 4g, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, water complements to 100g, and under the effect of sand mill, making main active ingredient weight percentage is 35% pyrazoles naphthalene bacterium amine-difenoconazole suspending agent.
Embodiment 12:
Take 10g pyrazoles naphthalene bacterium amine, 10g Difenoconazole, lignin 2g, polyoxyethylene poly-oxygen propylene aether 4g, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, water complements to 100g, and under the effect of sand mill, making main active ingredient weight percentage is 20% pyrazoles naphthalene bacterium amine-difenoconazole suspending agent.
Embodiment 13:
Take 30g pyrazoles naphthalene bacterium amine, 12g Difenoconazole, lignin 2g, polyoxyethylene poly-oxygen propylene aether 4g, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, water complements to 100g, and under the effect of sand mill, making main active ingredient weight percentage is 42% pyrazoles naphthalene bacterium amine-difenoconazole suspending agent.
Embodiment 13:
Take 2g pyrazoles naphthalene bacterium amine, 5g Difenoconazole, sodium lignin sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite complements to 100g, and it is 7% pyrazoles naphthalene bacterium amine-Difenoconazole water dispersion granule that above raw material is made to main active ingredient weight percentage by water dispersible granular agent method.
Embodiment 14:
Take 4g pyrazoles naphthalene bacterium amine, 13g Difenoconazole, sodium lignin sulfonate 8g, lauryl sodium sulfate 2g, ammonium sulfate 5g, polyvinyl alcohol 5g, borax 2g, diatomite complements to 100g, and it is 17% pyrazoles naphthalene bacterium amine-Difenoconazole water dispersion granule that above raw material is made to main active ingredient weight percentage by water dispersible granular agent method.
Embodiment 15:
Take 5g pyrazoles naphthalene bacterium amine, 15g Difenoconazole, lignin 2g, polyoxyethylene poly-oxygen propylene aether 4g, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, water complements to 100g, and under the effect of sand mill, making main active ingredient weight percentage is 20% pyrazoles naphthalene bacterium amine-difenoconazole suspending agent.
Embodiment 16 indoor biometrics tests:
Take wheat rust (Puccinia striiformis West) as test strain, adopt mycelial growth rate method indoor, measure different medicaments to concentration EC in the inhibition of bacterial strain
50value, adopts the abundant co-toxicity coefficient computational methods of Sun Yun, calculates the co-toxicity coefficient (CTC) of mixture, determines the synergy of mixture, and computational methods are as follows:
1. (conventionally select EC take a certain single dose in mixture as standard medicament
50junior), calculate:
2. single dose toxicity index=standard medicament EC
50/ certain single dose EC in addition
50× 100
3. toxicity index × B single dose proportion in mixture of toxicity index × A single dose of theoretical toxicity index=A single dose proportion+B single dose in mixture.
4. the EC of actual measurement toxicity index=standard single dose
50the EC of value/mixture
50value × 100
5. co-toxicity coefficient CTC=actual measurement toxicity index/theoretical toxicity index × 100
Evaluate the value of mixture according to the numerical value of CTC, CTC is greater than at 120 o'clock and shows that mixture has synergetic, CTC is less than at 80 o'clock and shows that mixture has Antagonism, CTC shows that between 80-120 mixture has summation action, generally speaking, the CTC>120 of mixture is the basic demand of agriculture chemical compounding research and development.
Indoor biometrics result is as follows:
Table 1: the indoor biometrics result of the different proportionings of pyrazoles naphthalene bacterium amine+Difenoconazole to wheat rust
| Medicament | Virulence regression equation | EC 50（mg/L） | Co-toxicity coefficient |
| 10% pyrazoles naphthalene bacterium amine EC | Y=2.402X+4.5754 | 1.5024 | --- |
| 10% Difenoconazole WDG | Y=2.458X+2.7341 | 8.3526 | --- |
| Embodiment 1(1:10) | Y=2.9942X+3.3512 | 3.5536 | 169.1 |
| Embodiment 2(1:5) | Y=2.0629X+4.2522 | 2.3041 | 203.8 |
| Embodiment 3(1:1) | Y=2.4941X+4.6262 | 1.4121 | 180.3 |
| Embodiment 4(2:1) | Y=3.3526X+4.5932 | 1.3223 | 155.6 |
| Embodiment 5(5:1) | Y=2.2679X+4.8962 | 1.1111 | 157.2 |
Field control effectiveness test:
Indoor biometrics shows good Pesticidal composition, must carry out actual field medicine effect test, field medicine effect test is the important means that whether final evaluation Pesticidal composition has using value under the impact of field integrated environment, therefore the pesticide mixed preparation, making with embodiment on the basis of indoor biometrics has carried out preventing and treating the field medicine effect test of wheat rust.
1. test is processed: this test medicine consumption is established respectively three concentration for the treatment of according to the difference of each composition, and contrast medicament is respectively 10% Difenoconazole WDG and 10% pyrazoles naphthalene bacterium amine EC and the test of blank clear water.
2. the each community of test method area is 66.7m
2, repeat 3 times; Inspection drug effect method before dispenser after Investigation and Prevention is: in test treatment region, adopt accidental sampling, sampling 5 points,, check wheat rust occurrence degree by 0.5 square metre every.
Table 2: the field control effectiveness test of the different pairing of pyrazoles naphthalene bacterium amine+Difenoconazole wheat rust:
Result by indoor biometrics and field medicine effect test shows, pyrazoles naphthalene bacterium amine and Difenoconazole composition have obvious synergistic function, the control efficiency of composition is good, and control efficiency is all better than single dose kind, in agricultural application, has good using value.
Claims (10)
1. a bactericidal composition, is characterized in that containing pyrazoles naphthalene bacterium amine and Difenoconazole, and wherein the weight ratio of pyrazoles naphthalene bacterium amine and Difenoconazole is 1 ~ 60:1 ~ 85.
2. bactericidal composition according to claim 1, the weight ratio that it is characterized in that pyrazoles naphthalene bacterium amine and Difenoconazole is 3 ~ 30:5 ~ 65.
3. bactericidal composition according to claim 2, is characterized in that described pyrazoles naphthalene bacterium amine and the weight ratio of Difenoconazole are 3 ~ 25:5 ~ 30, further preferred 1:0.2 ~ 10.
4. the bactericidal composition that contains pyrazoles naphthalene bacterium amine and Difenoconazole according to claim 1, is characterized in that the two weight percentage that accounts for composition of pyrazoles naphthalene bacterium amine and Difenoconazole is 2-90%.
5. the bactericidal composition that contains pyrazoles naphthalene bacterium amine and Difenoconazole according to claim 4, is characterized in that the two weight percentage that accounts for composition of pyrazoles naphthalene bacterium amine and Difenoconazole is 5-60%.
6. the bactericidal composition that contains pyrazoles naphthalene bacterium amine and Difenoconazole according to claim 5, is characterized in that the two weight percentage that accounts for composition of pyrazoles naphthalene bacterium amine and Difenoconazole is 8-50%, preferably 20-40%.
7. the Synergistic bactericidal composition containing pyrazoles naphthalene bacterium amine and Difenoconazole according to claim 1, is characterized in that take pyrazoles naphthalene bacterium amine and Difenoconazole as main active ingredient and insecticides adjuvant, excipients are mixed with any one formulation allowing on agricultural chemicals.
8. the compound biocide composite containing pyrazoles naphthalene bacterium amine and Difenoconazole according to claim 7, is characterized in that described formulation is missible oil, suspending agent, aqueous emulsion, wetting powder, microemulsion or water dispersion granule.
9. the application of the compound biocide composite containing pyrazoles naphthalene bacterium amine and Difenoconazole claimed in claim 1 on preparation control resistance plant fungal disease.
10. the compound biocide composite containing pyrazoles naphthalene bacterium amine and Difenoconazole according to claim 9 is in the application of preparing on the fungal disease germ killing drugs such as control rust, powdery mildew, leaf spot, net blotch, glume blight, smut, anthracnose, early blight, damping off.
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| CN104705304A (en) * | 2013-12-11 | 2015-06-17 | 上海中冠生物科技有限公司 | Compounded bactericide and preparation method thereof |
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| CN101035432A (en) * | 2004-10-08 | 2007-09-12 | 辛根塔参与股份公司 | Synergistic fungicidal composition |
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| CN101035432A (en) * | 2004-10-08 | 2007-09-12 | 辛根塔参与股份公司 | Synergistic fungicidal composition |
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Application publication date: 20140709 |