CN109832271A - A kind of bactericidal composition for disliking bacterium azoles containing bromothalonil and dichloro - Google Patents
A kind of bactericidal composition for disliking bacterium azoles containing bromothalonil and dichloro Download PDFInfo
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- CN109832271A CN109832271A CN201711202937.7A CN201711202937A CN109832271A CN 109832271 A CN109832271 A CN 109832271A CN 201711202937 A CN201711202937 A CN 201711202937A CN 109832271 A CN109832271 A CN 109832271A
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- bromothalonil
- dichloro
- bacterium azoles
- bactericidal composition
- rice
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Abstract
The present invention relates to a kind of bactericidal compositions for disliking bacterium azoles for bromothalonil and dichloro containing active constituent, the two mass ratio is 1 ~ 100:100 ~ 1, it is preferably 1:20 ~ 20:1 for watermelon anthrax, it is preferably 1:20 ~ 20:1 for rice blast, the gross mass that bromothalonil and dichloro dislike bacterium azoles accounts for the 1% ~ 75% of composition quality, preferably 1% ~ 35%.Remaining is the auxiliary agent and carrier allowed in pesticide, and the composition can be made into the agriculturally common dosage form such as microemulsion, wettable powder, suspending agent, water dispersible granules.The shortcomings that being easy to produce resistance the present invention overcomes single dose, extends the lasting period at the use scope for having widened medicament, improves drug effect；There is apparent synergistic effect after compounding, the drug resistance of germ can be delayed, mitigates phytotoxicity, can be used for preventing and treating watermelon anthrax, rice to seasonal febrile diseases.
Description
Technical field
It is that dislike bacterium azoles with bromothalonil and dichloro be effective the present invention relates to a kind of pesticide sterilizing composite and its application field
Ingredient is mainly used in the prevention and treatment of disease on crops.
Background technique
Bromothalonil, chemical name 1, bromo- 2, the 4- dicyanobutane of 2- bis-, molecular formula C6H6Br2N2, it is a kind of wide
Spectrum, efficiently, low toxicity systemic fungicide, can inhibit and root out the growth of fungi, bacterium, algae, to corps diseases have compared with
Good control efficiency, has special efficacy to anthracnose, it is more to be widely used in fruit tree, watermelon, vegetables, cotton, rice, tobacco, flowers etc.
Kind crop, the diseases such as prevention and treatment anthracnose, damping-off, rice blast, shot hole, powdery mildew, bacterial wilt, angular leaf spot.
It is a kind of oxazole sulfone compound with bactericidal activity that dichloro, which dislikes bacterium azoles, and chemical name is 2- methyl sulfuryl -5-
(2,4- dichlorophenyl) -1,3,4- oxadiazoles, molecular formula C9H6O3N2C12S is a kind of novel low-toxicity, safety, has higher work
Property fungicide, to the fungal diseases such as the late blight of potato, rice blast have preferable control efficiency, because be used alone when
The disease that generation is mixed on crops can not be solved, compound that need to be different from other action characters and mechanism compounds to widen medicine
The use scope of agent improves control efficiency.
Application Agro-chemicals control disease is one of most effective means, but the chemical agent that chronic administration is single, is easy
Cause residual, environmental pollution and the generation of resistance to drug resistance germ of medicament.It is reasonably bactericide compounded that there is expansion fungicidal spectrum,
The features such as improving preventive effect, extending the lasting period, reduce dosage, reduce cost.Exploitation new product fungicide is expensive, the period is long,
It is at high cost, in contrast, research and develop the Compositional type fungicide of high-efficiency low-toxicity, have small investment, lead time it is short and by domestic and international
Pay attention to, increases developing efforts one after another.The report that also no discovery bromothalonil is not compounded with dichloro evil bacterium azoles at present.
Summary of the invention
The object of the present invention is to provide a kind of new and effective bactericidal composition, it is mainly used for preventing and treating watermelon anthrax, water
The diseases such as rice rice blast, damping-off.
Technical solution according to the present invention is realized by following measures:
A kind of bactericidal composition for disliking bacterium azoles containing bromothalonil and dichloro, the bactericidal composition effective component are that bromothalonil and dichloro are disliked
Bacterium azoles binary built, other is auxiliary element.Wherein the effective component bromothalonil of the bactericidal composition and dichloro dislike bacterium azoles
Mass ratio be 1 ~ 100:100 ~ 1, be preferably 1:20 ~ 20:1 for watermelon anthrax, for rice blast be preferably 1:20 ~
The gross mass that 20:1, bromothalonil and dichloro dislike bacterium azoles accounts for the 1% ~ 75% of composition quality, preferably 1% ~ 35%.
The bactericidal composition is added auxiliary agent and excipients and microemulsion, wettable powder is made by certain technological means
The agriculturally common dosage form such as agent, suspending agent, water dispersible granules.
Compared with prior art invention, the invention has the following advantages: (1) two kinds of active components compound, with single dose
It compares, hence it is evident that improve control efficiency, expand fungicidal spectrum；(2) reduce Pesticide use amount and application times, reduce pair
The pollution of environment, and to Target crops, safety of human and livestock；(3) use cost is reduced, with efficient, quick-acting, lasting period length excellent
Point.
Specific embodiment
In order to which the purpose of the present invention and technical solution is more clearly understood, the present invention is illustrated with following embodiment,
But it cannot be accordingly regarded as limitation of the present invention, the following description is only for the purpose of explaining the present invention.It is all in the spirit and principles in the present invention
Within made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention, therefore, this hair
The scope of protection shall be subject to the appended claims for bright patent.
One, example of formulations
Embodiment 1:10% bromothalonil dichloro dislikes bacterium azole suspending agent
Bromothalonil 5%, dichloro are disliked bacterium azoles 5%, SOPA3%, AEO1.5%, xanthan gum 0.2%, sodium benzoate 0.2%, propylene glycol 5%, are added
Water complements to 100%.The specific production stage of the suspending agent is first to mix other auxiliary agents, is uniformly mixed through high speed shear, and is added
Effective component bromothalonil and dichloro dislike bacterium azoles, abrading-ball 2~3 hours in ball crusher, make a diameter at 5 microns hereinafter,
The aqueous suspension formulations of the present composition are made.
Embodiment 2:8% bromothalonil dichloro dislikes bacterium azoles wettable powder
Bromothalonil 2%, dichloro dislike bacterium azoles 6%, sodium lignin sulfonate 5%, lauryl sodium sulfate 6%, kaolin and complement to 100%.It should
Effective component bromothalonil and dichloro are disliked bacterium azoles and dispersing agent, profit by above-mentioned formula by the specific production stage of wettable powder
Humectant and filler mixing, uniform stirring, remixes uniformly after airslide disintegrating mill, that is, can be made into combination of the present invention in a stirring kettle
The wettable powder of object.
Embodiment 3:28% bromothalonil dichloro dislikes bacterium azoles water dispersible granules
Bromothalonil 4%, dichloro are disliked bacterium azoles 24%, spaonin powder 5%, alkyl benzene sulfonate calcium salt 5%, ammonium sulfate 1%, bentonite and are added to
100%.The specific production stage of the water dispersible granules are as follows: effective component bromothalonil and dichloro are disliked into bacterium azoles by above-mentioned formula and divided
Powder, wetting agent, disintegrating agent and filler are uniformly mixed, and are crushed with micro jet, through mediating, fluidized bed is then added
Through sampling analysis after being granulated, dried in granulating and drying machine, being sieved, that is, it can be made into the water dispersible granules of the present composition.
Embodiment 4:11% bromothalonil dichloro dislikes bacterium azoles microemulsion
Bromothalonil 2%, dichloro dislike bacterium azoles 9%, polypropylene-base ether emulsifier 12%, glycerine 5%, epoxidized linseed oil 3%, N- methyl pyrrole
Pyrrolidone 22%, Jia Shui complement to 100%.Bromothalonil is disliked bacterium azoles with dichloro to be completely dissolved with cosolvent, emulsifier is added, prevents
Freeze the other compositions such as agent, stabilizer, uniformly mixes, be eventually adding water, microemulsion can be made into after being sufficiently stirred.
Embodiment 5:35% bromothalonil dichloro dislikes bacterium azoles wettable powder
Bromothalonil 10%, dichloro dislike bacterium azoles 25%, laurel alcohol radical sodium sulphate 10%, alkylnaphthalene sulfonate condensation polymer 5%, white carbon black 5%,
Kaolin supplies 100%.Above-mentioned material is mixed in proportion, after mechanical crushing again through air-flow crushing, after mixing, can make
It obtains 35% bromothalonil dichloro and dislikes bacterium azoles wettable powder.
Embodiment 6:19% bromothalonil dichloro dislikes bacterium azole suspending agent
Bromothalonil 1%, dichloro dislike bacterium azoles 18%, S-200 solvent naphtha 15%, emulsifier 700# 5%, nonylphenol polyoxyethylene ether phosphoric acid
Ester (NP-10P) 3%, BY125 2%, propylene glycol 4%, Jia Shui complement to 100%.Above-mentioned material is mixed in proportion, is cut at a high speed
It cuts after being uniformly dispersed, being sanded in sand mill, can be prepared by 19% bromothalonil dichloro and dislike bacterium azole suspending agent.
Embodiment 7:27% bromothalonil dichloro dislikes bacterium azoles wettable powder
Bromothalonil 6%, dichloro dislike bacterium azoles 21%, aliphatic amine polyoxyethylene ether 8%, alkyl benzene calcium sulfonate 2%, tea seed cake 1%, montmorillonite benefit
Enough to 100%.The specific production stage of the wettable powder, by above-mentioned formula by effective component bromothalonil and dichloro dislike bacterium azoles with
And dispersing agent, wetting agent and filler mixing, uniform stirring, remixes uniformly after airslide disintegrating mill, can make in a stirring kettle
The wettable powder of inventive composition.
Embodiment 8:30% bromothalonil dichloro dislikes bacterium azoles aqueous emulsion
Bromothalonil 25%, dichloro dislike bacterium azoles 5%, cyclohexanone 8%, methyl oleate 7%, fatty acid polyethylene glycol ester 8%, epoxidized soybean oil
2%, glycerine 2%, silicone compound 0.2%, Kathon CG Kathon 0.2%, methylcellulose 1.5%, add water to supply 100%.It will be above-mentioned
Material mixes in proportion, after high shear agitation is uniform, can be prepared by 30% bromothalonil dichloro and dislikes bacterium azoles aqueous emulsion.
Embodiment 9:33% bromothalonil dichloro dislikes bacterium azoles microemulsion
Bromothalonil 30%, dichloro dislike bacterium azoles 3%, ethylene glycol monomethyl ether 10%, trimethyl cyclic ethylene ketone 5%, sorbitan monostearate
10%, resorcinol 2.5%, Octacide 264 2%, ethylene glycol 25, silicone oil 0.3%, Jia Shui supply 100%.Above-mentioned material is mixed in proportion
It closes, after high shear agitation is uniform, can be prepared by 33% bromothalonil dichloro and dislike bacterium azoles microemulsion.
Embodiment 10:18% bromothalonil dichloro dislikes bacterium azoles aqueous emulsion
Bromothalonil 13%, dichloro dislike bacterium azoles 5%, cyclohexanone 5%, methyl oleate 10%, fatty acid polyethylene glycol ester 8%, epoxidized soybean oil
2%, urea 2%, silicone compound 0.3%, Kathon CG Kathon 0.2%, methylcellulose 1.5%, add water to supply 100%.By above-mentioned object
Material mixes in proportion, after high shear agitation is uniform, can be prepared by 18% bromothalonil dichloro and dislikes bacterium azoles aqueous emulsion.
Embodiment 11:20% bromothalonil dichloro dislikes bacterium azoles wettable powder
Bromothalonil 17%, dichloro dislike bacterium azoles 3%, naphthalene sulfonate 10%, di-2-ethylhexylphosphine oxide naphthalene sulfonate 5%, white carbon black 5%, and diatomite is supplied
100%.Above-mentioned material is mixed in proportion, after mechanical crushing again through air-flow crushing, after mixing, can be prepared by 20% bromine bacterium
Nitrile dichloro dislikes bacterium azoles wettable powder.
Embodiment 12:21% bromothalonil dichloro dislikes bacterium azoles water dispersible granules
Bromothalonil 20%, dichloro dislike bacterium azoles 1%, lauryl sodium sulfate 5%, polyoxyethylene polyoxypropylene block copolymer 6%, chlorination
Sodium 3%, soluble starch 0.8%, sepiolite supplies 100%.Above-mentioned material is mixed in proportion, is uniformly mixed, pinches through air-flow crushing
It closes and is granulated, after dry screening, can be prepared by 21% bromothalonil dichloro and dislike bacterium azoles water dispersible granules.
Two, raw to survey embodiment
1, indoor toxicity test
1.1 watermelon anthrax indoor toxicity tests
Bacterium azoles is disliked with dichloro for clear bromothalonil and compounds the indoor virulence to watermelon anthrax, and the present invention is formulated progress to it
Screening.This test inhibits method to carry out indoor toxicity test to watermelon anthrax using mycelial growth rate.Watermelon anthrax bacteria is adopted
From Nanning, using PSA culture medium, by the germ isolated and purified dark culturing 15 days in 25 DEG C of constant incubators, use
The sterilization punchers of diameter 7mm cell age is close, the consistent bacterium colony position of growing way be beatened to take bacteria cake it is spare.According to the knot of trial test
Fruit sets bromothalonil and dichloro and dislikes the weight proportion of bacterium azoles as 1:1,1:3,1:6,2:9,2:5,1:18,2:7,5:1,10:1,
13:5,17:3,20:1 and each single dose totally 14 kinds of chemicals treatments, are diluted to 0.125 for the mother liquor of each mixed agent and single dose respectively,
0.25,0.5,0.75,1,1.25,1.5,3,6,12mg/L to be made PSA plate spare for totally 10 concentration gradients, with not adding medicine but
The PSA plate of the solvent containing equivalent is control, and the bacteria cake that access diameter is 7mm, 25 DEG C of constant temperature incubations, every processing is set to be repeated three times,
Colony diameter is surveyed using crossing method after 15 days, and calculates mycelial growth inhibition rate.Medicament difference is acquired with least square method
Concentration EC in the virulence regression equation of ratio, inhibition50And related coefficient, then co-toxicity coefficient (CTC) is calculated with Sun Yunpei's Method, with mixed
A certain single dose is that standard agent (generally selects EC in agent50Junior), it is calculated: test result such as table 1, circular
It is as follows:
Toxicity index (TI)=standard agent EC50/ reagent agent EC50×100
Theoretical toxicity index (TTI)=standard agent toxicity index × standard agent in mixing assembles percentage+for examination
Medicament toxicity index × reagent agent percentage in mixing assembles
Actual toxicity index (ATI)=standard single dose EC50Value/mixture EC50Value × 100
Co-toxicity coefficient (CTC)=survey toxicity index/theoretical toxicity index × 100
Co-toxicity coefficient classification: the mixture of CTC>120 has synergistic function, and the mixture of CTC<80 has antagonism, 80≤CTC
≤ 120 mixtures have summation action.
Known by table 1, bromothalonil and dichloro dislike bacterium azoles in the proportional region of 20:1~1:20 (pressing quality) when compounding, altogether
Malicious coefficient (CTC) is all larger than 120, shows synergistic function to watermelon anthrax pathogen.As it can be seen that bromothalonil and two
Chlorine, which dislikes bacterium azoles compounding, has reasonability and feasibility.
The indoor toxicity test of 1.2 rice blasts
According to trial test as a result, setting the weight proportion of bromothalonil and dichloro evil bacterium azoles as 1:1,1:3,1:6,2:9,2:5,1:
18,2:7,5:1,10:1,13:5,17:3,20:1 and each single dose totally 14 kinds of chemicals treatments, respectively by each mixed agent and single dose
Mother liquor is diluted to 0.06,0.125,0.25,0.5,0.75,1,1.25,1.5,2.5,5 mg/L, and PSA is made in totally 10 concentration gradients
Plate is spare.Rice blast fungus picks up from changde, hunan province city paddy field, at 25 DEG C through PSA culture medium separating-purifying, activation
48h produces diameter with punch in nearly colony edge and is the bacteria cake of 5 mm, and is transferred to the above-mentioned drug containing PSA for diluting and preparing
In serial plate and blank control, each processing is repeated 4 times.25 DEG C of 48 h of culture are straight to about plate wait colony diameter length in compareing
Diameter 4/5 when, using crossing method measure colony diameter.It is as follows that mycelia grows average inhibition calculation formula: mycelia is raw
Long inhibiting rate=[ (control colony diameter mean value-processing colony diameter mean value)/(control colony diameter mean value-inoculation bacteria cake
Diameter) ] × 100%.The virulence regression equation of medicament different proportion is acquired with least square method, concentration EC in inhibition50And phase relation
Number, then co-toxicity coefficient (CTC) is calculated with Sun Yunpei's Method, (EC is generally selected using single dose a certain in mixture as standard agent50It is lower
Person), calculated: test result such as table 2, circular is as follows:
Toxicity index (TI)=standard agent EC50/ reagent agent EC50×100
Theoretical toxicity index (TTI)=standard agent toxicity index × standard agent in mixing assembles percentage+for examination
Medicament toxicity index × reagent agent percentage in mixing assembles
Actual toxicity index (ATI)=standard single dose EC50Value/mixture EC50Value × 100
Co-toxicity coefficient (CTC)=survey toxicity index/theoretical toxicity index × 100
Co-toxicity coefficient classification: the mixture of CTC>120 has synergistic function, and the mixture of CTC<80 has antagonism, 80≤CTC
≤ 120 mixtures have summation action.
As shown in Table 2, bromothalonil and dichloro dislike bacterium azoles in the proportional region of 20:1~1:20 (pressing quality) when compounding,
Co-toxicity coefficient (CTC) is all larger than 120, shows synergistic function to seasonal febrile diseases pathogen to rice.As it can be seen that bromothalonil and
Dichloro, which dislikes bacterium azoles compounding, has reasonability and feasibility.
2, field control effectiveness test
2.1 watermelon anthrax field control effectiveness tests
Test process: this experimental evidence is matched according to above embodiments dosing, and effective component is bromothalonil (A) and dichloro
Dislike bacterium azoles (B) quality and, comparison medicament be respectively 25% bromothalonil wettable powder and 10% dichloro dislike bacterium azole suspending agent and
Clear water blank control test.
Test method: each plot area is 25m2, each processing is repeated 4 times, and above-mentioned formula is diluted with water, blade face spray
Mist；Investigation drug effect method after investigating and prevent and treat before application is progress radix investigation before the 1st application, after the 2nd application of difference
7th day, 2 efficacy surveys of progress in the 7th day after being administered before the 3rd application with the 3rd time.Every cell grab sample investigation 5
Strain, every plant by East, West, South, North, in 5 points sampling, every is looked into 4 leaves；To sick leaf using the classification of 9 grades of stagings, i.e., 0,1,3,5,
7,9 grades, lesion area accounts for the 0 of entire blade area, 5 % respectively hereinafter, 6 %~15 %, 16 %~25%, 26 %~50
%, 50 % or more record incidence of leaf number and sick grade respectively；Sick leaf rate is calculated, disease refers to and control efficiency.Test result is shown in Table 3:
As can be seen from Table 3, bromothalonil is disliked after bacterium azoles compounds with dichloro to watermelon anthrax significant effect, is had compared with single dose
The advantage that preventive effect is high, the lasting period is long, to crop safety in this experimental drug range.
2.2 rice blast field control effectiveness tests
Test process: this experimental evidence above embodiments dosing proportion, effective component is bromothalonil (A) and dichloro dislikes bacterium
The quality of azoles (B) and, comparison medicament is respectively that 25% bromothalonil microemulsion and 10% dichloro dislike bacterium azole suspending agent and clear water blank
Check experiment.
Test method: each plot area is 25m2, each processing is repeated 4 times, and above-mentioned formula is diluted with water, blade face spray
Mist.Test is using fixed point investigation method, and 2 points of every cell, every solid point, which is seted the tone, looks into 5 clumps of rice.Application before and application after third
It, the 7th day, fortnight investigate rice blast diseased plant rate and disease index respectively, according to stable disease phase applying area and check plot
The difference of disease index calculates preventive effect.Test result is shown in Table 4:
As can be seen from Table 4, bromothalonil is disliked after bacterium azoles compounds to rice with dichloro to seasonal febrile diseases significant effect, is had compared with single dose
The advantage that preventive effect is high, the lasting period is long, to crop safety in this experimental drug range.
Claims (7)
1. a kind of bactericidal composition, which is characterized in that active constituent includes that bromothalonil and dichloro dislike bacterium azoles.
2. bactericidal composition according to claim 1, which is characterized in that the sterilization group of the bromothalonil and dichloro evil bacterium azoles
Object is closed, it is preferably 1:20 ~ 20:1 for watermelon anthrax that the two mass ratio, which is 1 ~ 100:100 ~ 1, preferred for rice blast
For 1:20 ~ 20:1.
3. bactericidal composition described in any one of -2 claims according to claim 1, it is characterised in that: active in composition
Component gross mass percentage composition is 1%-75%, preferably 1%-35%.
4. bactericidal composition described in any one of -2 claims according to claim 1, it is characterised in that: the pesticide combination
Object is aided with Pesticide formulation auxiliary element and is processed into any one dosage form for being suitble to agriculturally use.
5. bactericidal composition according to claim 3, which is characterized in that the bactericidal composition can configure any dosage form,
Preferable dosage form has microemulsion, wettable powder, suspending agent, water dispersible granules.
6. bactericidal composition described in any one of -4 claims is used to prevent and kill off the purposes of corps diseases according to claim 1.
7. purposes according to claim 5, which is characterized in that the corps diseases are preferably watermelon anthrax or rice
Rice blast.
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| CN106508944A (en) * | 2016-08-31 | 2017-03-22 | 柳州市惠农化工有限公司 | Pesticidal composition containing 2-methylsulfonyl-5-(2,4-dichlorophenyl)-1,3,4-oxadiazole and prochloraz |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106508944A (en) * | 2016-08-31 | 2017-03-22 | 柳州市惠农化工有限公司 | Pesticidal composition containing 2-methylsulfonyl-5-(2,4-dichlorophenyl)-1,3,4-oxadiazole and prochloraz |
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