CN109699654A - A kind of composition pesticide of fluorine-containing thiazole pyrrole ethyl ketone and shenqinmycin - Google Patents
A kind of composition pesticide of fluorine-containing thiazole pyrrole ethyl ketone and shenqinmycin Download PDFInfo
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- CN109699654A CN109699654A CN201711019396.4A CN201711019396A CN109699654A CN 109699654 A CN109699654 A CN 109699654A CN 201711019396 A CN201711019396 A CN 201711019396A CN 109699654 A CN109699654 A CN 109699654A
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Abstract
The present invention relates to a kind of bactericidal compositions comprising fluorine thiazole pyrrole ethyl ketone and shenqinmycin, the weight ratio of two kinds of effective component is 1-80:80-1, the weight percentage of effective component is 1-50%, preferably 5-20%% in fungicide, remaining is the auxiliary agent and carrier allowed in pesticide.Composition of the invention has apparent synergistic effect, can reduce Pesticide use amount, environmentally friendly safety.
Description
Technical field
The invention belongs to technical field of pesticide, and in particular to be a kind of fluorine-containing thiazole pyrrole ethyl ketone and shenqinmycin pesticide
Composition.
Background technique
Fluorine thiazole pyrrole ethyl ketone is the first piperidyl thiazole isoxazolines fungicide of E.I.Du Pont Company's research and development, has both protection and controls
Treat activity.Its target site is novel, and fluorine thiazole pyrrole ethyl ketone is to Oomycete on potato, grape, vegetables and other Featured crops
Disease has brilliant preventive effect, such as cucumber downy mildew, muskmelon downy mildew, downy mildew of garpe, Chinese cabbage downy mildew, tomato late blight, horse
Bell potato late blight, capsicum epidemic disease etc..Under extremely low dosage, fabulous protection and therapeutic activity can be shown, and holding effect is made
It makes good use of.
Microbial source fungicide phenazine-1-carboxylic acid is named the committee through national pesticide and is formally named as shenqinmycin, as
The trade name of phenazine-1-carboxylic acid has the characteristics that efficient, low toxicity, environment compatibility are good, has broad-spectrum antibacterial action, can press down
Make a variety of fungal pathogens that can cause plant disease, to gummy stem blight of melon (Fusariumoxysporum sp. cumcumerinum), watermelon blight (Fusariumoxysporum sp.niveum) and rice banded sclerotial blight (Rhizoctonia solani) etc. a variety of fungal diseases have good preventive and therapeutic effect.According to the fixed point arrangement of the Ministry of Agriculture, in Hainan Province and Shanghai
City has carried out the field control effectiveness test of 2 years prevention and treatment watermelon blights, and it is peppery to have carried out four ground prevention and treatment in 2 years in Hainan Province and Gansu Province
The field control effectiveness test of green pepper wilt disease.Test result shows that, by the pouring root in seedling stage and being sprayed for early stage blade face, Shen piperazine is mould
Element reaches 75%-80% to the prevention and treatment of watermelon blight, reaches 73%-80% to the prevention and treatment of pimento epidemic disease.Shenqinmycin is withered in watermelon
Disease of withering and obtained in pimento epidemic disease agriculture chemical registration card.
Plant Oomycete guiding principle disease short incubation period, then infect frequently, host range is wide, and it is popular strong, occur generally, to Ma Ling
The yield and economic benefit of potato, grape and vegetables etc. generate extreme influence.It is single by phytophthora infestans (Phytophthora infestans) caused by economic loss caused by the late blight of potato it is annual just up to 6,700,000 dollars.Oomycetes diseases in production
Chemical prevention is generallyd use, pesticide control includes protective fungicide Bordeaux mixture, Mancozeb etc., curative fungicide agent downy mildew
Prestige, cymoxanil etc..These medicaments have used for many years, and resistance is larger.
Inventor specially solves disease caused by plant Oomycete guiding principle (downy mildew, epidemic disease etc.) this great problem thus, invention
People is found by experiment that, by disease caused by the different shenqinmycin of the mechanism of action and fluorine thiazole pyrrole ethyl ketone prevention and treatment plant Oomycete guiding principle
(downy mildew, epidemic disease etc.) it is bactericide compounded, have significant synergies, can significantly improve treatment, protection control efficiency,
Control cost is reduced, to crop safety.
Summary of the invention
The purpose of the present invention is to propose to a kind of with synergistic function, the fluorine-containing thiazole pyrrole that use cost is low, preventive effect is good
The composition pesticide of ethyl ketone and shenqinmycin.
The present invention is achieved through the following technical solutions:
The mass percent of effective active composition fluorine thiazole pyrrole ethyl ketone and shenqinmycin is in composition pesticide preparation of the invention
1-80:80-1 has different degrees of synergistic effect in this proportional region.After rough enhancing proportions range has been determined, I
Reduce proportional region again, emphasis has done the proportioning test screening of some a small ranges, on the basis of specific aim formula test
On, the quality percentage of effective active composition fluorine thiazole pyrrole ethyl ketone and shenqinmycin can be more preferably 5-60:1-30 by we.
In composition pesticide preparation of the invention the weight percentage of active constituent be 1-50%, preferably 5-20%,
The remaining auxiliary element in Pesticide formulation.
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide, a kind of component is reasonable, and synergistic effect is significant, sterilization
Effect is good, and drug cost is low to be not likely to produce drug resistance, the agricultural bactericidal composition to crop safety；Another object of the present invention exists
Application of the bactericidal composition as prevention and treatment downy mildew, epidemic disease, medicine of dampinging off described in providing.
Above-mentioned bactericidal composition and known auxiliary agent and excipient are re-dubbed the dosage form allowed on pesticide.Such as it can be cream
Oil, wettable powder, suspending agent, aqueous emulsion, water dispersible granules, any one in microemulsion.
Composition pesticide of the present invention has apparent sterilization synergistic effect, and compared with prior art, mixed composition has
Good synergistic effect, application effect are substantially better than single dose theoretical effect summation, that is, have synergistic effect, can preferably control plant
Object disease occurrence injury；Delay disease that two kinds of drugs are generated with the speed of resistance, has extended fluorine thiazole pyrrole ethyl ketone and Shen piperazine is mould
In the plain service life in the market, reduces effective ingredient consumption and repeatedly times for spraying, reduce agricultural cost, delay the anti-medicine of disease
The generation of property, reduces pesticide residue, alleviates the pollution to environment, to more environment-friendly.
Specific embodiment
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, all equivalent transformations made on the basis of the technical solutions of the present application each fall within protection scope of the present invention.
Different crops, suitable for the different formulations of pesticide, the researcher of this formulations of pesticide technical field can be made into phase
The formulations of pesticide of adaptation, simple component and embodiment are as follows:
One 7% fluorine thiazole pyrrole ethyl ketone of example of formulations and shenqinmycin suspending agent
Fluorine thiazole pyrrole ethyl ketone 6%, shenqinmycin 1%, lignosulfonates 8%, alkyl sulfate 4%, aluminum magnesium silicate 1%, sodium benzoate
1%, silicone oil 1%, propylene glycol 0.8%, water surplus complements to 100%, other auxiliary agents are mixed, are uniformly mixed through high speed shear, and is grinding
Abrading-ball 2-3 hours in ball machine, make a diameter at 3 microns hereinafter, 7% fluorine thiazole pyrrole ethyl ketone and shenqinmycin suspending agent is made.
2 11% fluorine thiazole pyrrole ethyl ketone shenqinmycin water dispersible granules of example of formulations
Fluorine thiazole pyrrole ethyl ketone 10%, shenqinmycin 1%, T36 10%, alkyl sulfate 3%, ammonium sulfate 2%, sodium carboxymethylcellulose
3%, white carbon black complements to 100%.Fluorine thiazole pyrrole ethyl ketone and shenqinmycin and dispersing agent, wetting agent, disintegrating agent and filler are mixed
It closes uniformly, is crushed with micro jet, through mediating, be then added in fluidized-bed granulation dryer and be granulated, dry, sieve
Through sampling analysis after point, 11% fluorine thiazole pyrrole ethyl ketone shenqinmycin water dispersible granules are made.
3 8% fluorine thiazole pyrrole ethyl ketone shenqinmycin aqueous emulsion of example of formulations
Fluorine thiazole pyrrole ethyl ketone 6%, shenqinmycin 2%, Nongru-700 # 8%, agriculture breast 1,601 3%, epoxidized soybean oil 4%, glycerol 1% are yellow
Virgin rubber 1%, benzoic acid 0.8%, cyclohexanone supplies 100g.It is according to formula rate that enough fluorine thiazole pyrrole ethyl ketones and shenqinmycin is molten
Solution in a solvent, is added surfactant (using after dissolving by heating when necessary) and other components, is uniformly mixed and obtains
8% fluorine thiazole pyrrole ethyl ketone shenqinmycin aqueous emulsion.
4 14% fluorine thiazole pyrrole ethyl ketone shenqinmycin wettable powder of example of formulations
Fluorine thiazole pyrrole ethyl ketone 10%, shenqinmycin 4%, alkyl naphthalene formaldehyde condensate sulfonate 8%, alkylnaphthalene sulfonate 5%, diatomite
100% is complemented to, is mixed by above-mentioned formula, in a stirring kettle uniform stirring, is being uniformly mixed, can make after airslide disintegrating mill
At the wettable powder of 14% fluorine thiazole pyrrole ethyl ketone shenqinmycin.
5 10% fluorine thiazole pyrrole ethyl ketone shenqinmycin microemulsion of example of formulations
Fluorine thiazole pyrrole ethyl ketone 8%, shenqinmycin 2%, agriculture breast 500# 7%, agriculture breast 1,601 4%, isopropanol 4%, toluene 20%, epoxy chlorine
Propane 2%, water complements to 100%.The method investment mixing kettle high speed that the above raw material routinely prepares aqueous emulsion is mixed, is made
10% fluorine thiazole pyrrole ethyl ketone shenqinmycin microemulsion.
6 6% fluorine thiazole pyrrole ethyl ketone shenqinmycin water dispersible granules of example of formulations
Fluorine thiazole pyrrole ethyl ketone 4%, shenqinmycin 2%, alkylnaphthalene sulfonate 9%, alkyl sulfate 5%, polyvinylpyrrolidone 2% gather
Vinyl alcohol 2%, kaolin adds to 100%, by fluorine thiazole pyrrole ethyl ketone and shenqinmycin and dispersing agent, wetting agent, disintegrating agent and fills out
Material is uniformly mixed, and is crushed with micro jet, through mediating, is then added in fluidized-bed granulation dryer and is granulated, is done
Through sampling analysis after dry, screening, 6% fluorine thiazole pyrrole ethyl ketone shenqinmycin water dispersible granules are made.
Two, raw to survey embodiment
1, the indoor toxicity test of the test example prevention and treatment late blight of potato and field efficacy are tested
1.1 indoor toxicity test
Mixture is combined to understand shenqinmycin with fluorine thiazole pyrrole ethyl ketone to the definite virulence of the late blight of potato, the present invention for
Its proportion is screened.
Subjects: the late blight of potato
Test site: Lanzhou City, Gansu Province Honggu District
Test method:
Referring to " NYT1156.2-2006 farm-chemical indoor determination test rule fungicide part 2: inhibition disease fungus mycelia
Growth test Plating " it carries out.
With phytophthora infestans (Phytophthora infestans) it is for trying pathogen.Morbidity leaf is acquired from field
Piece, laboratory isolate and purify, and are seeded on oat medium and cultivate, and culture to colony diameter is spare up to 6cm or so.Oat culture
It is spare after the sterilizings such as base, deionized water, scribing line triangular flask, culture dish, pipette tips, punch, inoculator.In aseptic technique
Under, the sterilising medium that preparatory thawing is cooled to about 50 DEG C is quantitatively adding in sterilizing scribing line triangular flask, culture medium and scribing line are made
Locate (60mL) concordantly, 600 μ L medical fluids are then successively drawn from low concentration to high concentration, are separately added into above-mentioned triangular flask, sufficiently
It shakes up, rear equivalent is poured into 4 culture dishes (Φ 9cm), and 5 concentration gradient band medicine plates are made.And set the processing without medicament
Make blank control.Will on culture medium cultured pathogen, aseptically with sterilization punchers (Φ 5mm) from bacterium colony side
Bacteria cake is cut on the same circumference of edge, with inoculator by pure culture biscuits involvng inoculation in drug containing tablet center, mycelia is face-down, ware lid is covered, in
Dark culturing in 19 DEG C of incubators.According to hypha growth condition in blank control ware, with calliper to measure colony diameter.Each bacterium colony
Using crossing method vertical measurement, its average value is taken, calculates inhibiting rate according to the following equation, and soft by DPS data statistics
Part calculates each chemicals treatment to virulence regression equation, related coefficient, EC50And compounding co-toxicity coefficient.Mycelia is used indoors
Growth rate method, EC of the measurement different agents to bacterial strain50, using co-toxicity coefficient calculation method, calculate the co-toxicity coefficient of mixture
(CTC), the building performance of mixture is determined, circular is as follows:
(EC is generally selected using certain in mixture-single dose as standard agent50Junior), it is calculated:
Single dose toxicity index=standard agent EC50/ certain single dose EC50×100
Theoretical toxicity index=A single dose toxicity index × A single dose proportion+B single dose in mixture toxicity index × B is mono-
Agent is in mixture proportion
Survey toxicity index=standard single dose EC50Value/mixture EC50Value × 100
Co-toxicity coefficient=survey toxicity index/theoretical toxicity index × 100
Co-toxicity coefficient classification: mixture has synergetic when CTC is greater than 120, is antagonism when CTC is less than 80, CTC is 80 ~ 120
Between be summation action.
Use fluorine thiazole pyrrole ethyl ketone (A) and shenqinmycin (B) raw with interior of the different ratio to the late blight of potato in table 1
Test is tested, and as shown in Table 1, composition co-toxicity coefficient of the invention is all larger than 120, i.e. the present composition has preferable collaboration
Building performance, effect is better than single dose kind.
1.2 field control effectiveness test
Test process: the difference of each ingredient of this experimental evidence sets two medicaments dosage respectively, and dosing is that effective component is new
The quality of product (A) and shenqinmycin (B) and.Comparison medicament is 10% fluorine thiazole pyrrole ethyl ketone suspending agent and 1% shenqinmycin respectively
Suspending agent and blank clean water experiment.
Test method: each plot area is 66.7m2, it is repeated 3 times;Investigation drug effect side after investigating and prevent and treat before application
Method are as follows: 5 points of grab sample in test process area, it is conventional spraying.Spraying equipment bodyguard's WS-16 type hand sprayer, circular cone
Fog spray head is spraying, operating pressure 0.2-0.4MPa, flow 0.65-0.88L/min.
10 plants of strain investigation, every plant of 10 leaf of investigation top are separated per small.Grade scale:
0 grade: complete stool blade disease-free spot；
1 grade: having individual scabs on individual blades；
3 grades: the blade below of complete stool 1/4 has scab or plant top stem to have individual small scabs；
5 grades: the blade of complete stool 1/4-1/2 has scab or plant top stem to have typical scab；
7 grades: the blade of 1/2 or more complete stool has on scab or plant middle and lower part stem and has larger scab；
9 grades: complete stool blade nearly all has scab, or most of blade is withered or even stem is withered.
Drug effect calculation method:
Test result see the table below:
Field efficacy the result shows that, as shown in Table 2, the present composition has obvious synergistic function, composition it is anti-
Excellent effect is controlled, control efficiency is better than single dose kind, has application value in agricultural application.
2, the indoor toxicity test of test example prevention and treatment downy mildew of garpe and field efficacy are tested
2.1 indoor toxicity test
Mixture is combined to the definite virulence of downy mildew of garpe in order to understand shenqinmycin with fluorine thiazole pyrrole ethyl ketone, and the present invention is for it
Proportion is screened.
Grape branch takes the 3rd ~ 5 consistent tender leaf of leaf age as inoculation material except topping hat, with aseptic water washing 3 ~ 5 times
Afterwards in drying in sterilizing filter paper, roundleaf disk is broken into superclean bench using the punch that diameter is 15mm, blade back is set upwards
It is spare on 1% water agar；Numerous fresh mould layer of each Pseudoperonospora cubensis is expanded in scraping purifying, is separately added into sterile water and is diluted to
Concentration is 1 × 106The sporangia suspension of a/ml is inoculated with 15 μ L in each leaf dish.Every ware puts three kind leaf dishes each 10,
Each bacterial strain sets up 3 groups of repetitions, using leaf dish be added dropwise equivalent sterile water as compare, place it in illumination box (21 DEG C, for 24 hours
It is dark) after culture for 24 hours, sealed after sucking extra bacterium solution with sterilizing filter paper item with sealed membrane, continue culture (21 DEG C, 16h illumination/
8h is dark).3 ~ 13d observes the incidence of leaf dish after inoculation, and investigation is primary daily, records leaf dish onset time, daily
The sick number of sheets and morbidity series of generation simultaneously calculate 11d disease index.According to Ministry of Agriculture's pesticide field efficacy medicine test criterion (two)
The grade scale (the Institute for the Control of Agrochemicals of the Ministry of Agriculture,PRC, 2004) of formulation, downy mildew of garpe disease severity can be divided into 6 ranks: according to
Following formula calculate inhibiting rate, and calculate each chemicals treatment to virulence regression equation, phase relation by DPS Software of Data Statistics
Number, EC50And compounding co-toxicity coefficient.Mycelial growth rate method, EC of the measurement different agents to bacterial strain are used indoors50, use
Co-toxicity coefficient calculation method calculates the co-toxicity coefficient (CTC) of mixture, determines the building performance of mixture, circular is as follows:
Using certain in mixture-single dose as standard agent, calculated:
Single dose toxicity index=standard agent EC50/ certain single dose EC50×100
Theoretical toxicity index=A single dose toxicity index × A single dose proportion+B single dose in mixture toxicity index × B is mono-
Agent is in mixture proportion
Survey toxicity index=standard single dose EC50Value/mixture EC50Value × 100
Co-toxicity coefficient=survey toxicity index/theoretical toxicity index × 100
Co-toxicity coefficient classification: mixture has synergetic when CTC is greater than 120, is antagonism when CTC is less than 80, CTC is 80 ~ 120
Between be summation action.
The indoor biometrics of fluorine thiazole pyrrole ethyl ketone (A) and shenqinmycin (B) with different ratio to downy mildew of garpe are used in table 3
Test, as shown in Table 3, composition co-toxicity coefficient of the invention are all larger than 120, i.e. there is the present composition preferable collaboration to increase
Effect property, effect is better than single dose kind.
2.2 field control effectiveness test
Test process: the difference of each ingredient of this experimental evidence sets two medicaments dosage respectively, and dosing is that effective component is new
The quality of product (A) and shenqinmycin (B) and.Comparison medicament is 10% fluorine thiazole pyrrole ethyl ketone suspending agent and 1% shenqinmycin respectively
Suspending agent and blank clean water experiment.
Test method: each plot area is 66.7m2, it is repeated 3 times;Investigation drug effect side after investigating and prevent and treat before application
Method are as follows: 5 points of grab sample in test process area, it is conventional spraying.Spraying equipment bodyguard's WS-16 type hand sprayer, circular cone
Fog spray head is spraying, operating pressure 0.2-0.4MPa, flow 0.65-0.88L/min.
10 plants of strain investigation, every plant of 10 leaf of investigation top are separated per small.Grade scale:
0 grade: not falling ill；
1 grade: lesion area accounts for 5% or less full wafer leaf area；
3 grades: lesion area accounts for the 6%~25% of full wafer leaf area；
5 grades: lesion area accounts for the 26%~50% of full wafer leaf area；
7 grades: lesion area accounts for the 51%~75% of full wafer leaf area；
9 grades: lesion area accounts for 76% or more of full wafer leaf area.
Drug effect calculation method
Field efficacy the result shows that, as shown in Table 4, the present composition has obvious synergistic function, composition it is anti-
Excellent effect is controlled, control efficiency is better than single dose kind, has application value in agricultural application.
Claims (8)
1. a kind of composition pesticide, which is characterized in that active constituent includes fluorine thiazole pyrrole ethyl ketone and shenqinmycin.
2. composition pesticide according to claim 1, which is characterized in that the weight of the fluorine thiazole pyrrole ethyl ketone and shenqinmycin
Amount is than being 1-80:80-1.
3. composition pesticide according to claim 1, which is characterized in that the weight of active constituent in the composition pesticide
Percentage composition is 1-50%.
4. composition pesticide 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. composition pesticide according to claim 3, which is characterized in that the dosage form of the composition pesticide is wettable powder
It is agent, water dispersible granules, suspending agent, microemulsion, any in aqueous emulsion.
6. composition pesticide described in any one of -5 claims according to claim 1, which is characterized in that the pesticide combination
Object also contains other agricultural active ingredients.
7. composition pesticide described in any one of -4 claims is used to prevent and kill off the purposes of corps diseases according to claim 1.
8. purposes according to claim 5, which is characterized in that the corps diseases are preferably the late blight of potato and Portugal
Grape downy mildew.
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| CN101888843A (en) * | 2006-07-27 | 2010-11-17 | 杜邦公司 | Fungicidal azocyclic amides |
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| CN104336079A (en) * | 2013-08-01 | 2015-02-11 | 陕西美邦农药有限公司 | A compound sterilization composition containing oxathiapiprolin |
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Application publication date: 20190503 |