CN103947649B - A kind of composition pesticide containing glyoxalin and kasugarnycin - Google Patents
A kind of composition pesticide containing glyoxalin and kasugarnycin Download PDFInfo
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Abstract
The invention belongs to pesticide field, be specifically related to a kind of composition pesticide, it is using the combination of glyoxalin (imibenconazole) and kasugarnycin (kasugamycin) as active component.Its host is the composition comprising following effective components by weight percentage: glyoxalin is 2-50%, and kasugarnycin is 0.5-8%, adjuncts Balance.Said composition utilizes glyoxalin and the composite rear obvious synergistic effect of kasugarnycin, is widely used in the harm of germ on the crops such as control fruit tree, vegetables, paddy rice, has protection and therapeutic action concurrently, show extremely strong antibacterial activity to crop.
Description
Technical field
The invention belongs to pesticide field, be specifically related to a kind of combine composition pesticide as active component containing glyoxalin (imibenconazole) and kasugarnycin (kasugamycin).
Background technology
Glyoxalin belongs to triazole type systemic fungicide, and Main Function mechanism is the biosynthesis of the cell membrane important composition composition ergosterol destroying and stop germ, thus destroys the formation of cell membrane, causes germ dead.Glyoxalin is wide spectrum new type bactericide, has protection and therapeutic action.To be sprayed onto after on crop can rapid osmotic in plant corpus, resistance of rainwater washing against.Can effectively prevent and treat disease caused by sac fungi, basidiomycetes and imperfect fungus, as to citrus scab, pear scab, anthracnose of grape, sigatoka have significant control efficiency.Use under recommended dose, to environment, crop safety.
Kasugarnycin is a kind of low toxicity, systemic fungicide, is the special antibiotic of control rice blast.Sterilization mechanism is the protein synthesis affecting germ, suppresses hyphal elongation and causes cell granulations.Can be used for preventing and treating the multiple diseases except rice blast, as multiple fungi bacteriosises such as cucumber anthracnose, bacterial angular leaf spot, cladosporium leaf and fruit mould of tomato, oranges and tangerines gummosiss.
Present inventor finds, glyoxalin and kasugarnycin is carried out Combined machining and becomes pesticidal preparations to use, and has outstanding synergistic effect, so complete the present invention in indoor and the control of field to a lot of germ.
Summary of the invention
The object of the present invention is to provide a class to contain the composition pesticide of glyoxalin and kasugarnycin, it has excellent synergy control efficiency.
Another object of the present invention various preparations being to provide described composition pesticide and preparation method thereof.
Comprise a composition pesticide for glyoxalin and kasugarnycin, weight percentage, glyoxalin accounts for 2-50% in the composition, and kasugarnycin accounts for 0.5-8%, and all the other are auxiliary agent.
Preferably, weight percentage, glyoxalin accounts for 3-20% in the composition, and kasugarnycin accounts for 2-6%, and all the other are auxiliary agent.
Preferably, glyoxalin can be former medicine or the preparation of itself.
Preferably, kasugarnycin can be former medicine or the preparation of itself, or indicates the compound of active ingredient with kasugamycin hydrochloride hydrate.
Preferably, above-mentioned composition pesticide mixture can become suspending agent, wetting powder or water-dispersible granules.
Above-mentioned auxiliary agent is:
When preparing suspending agent, its auxiliary agent is:
The wetting agent of 0.2-10% by weight, wetting agent is Negel, lauryl sodium sulfate, polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, fatty alcohol ethylene oxide adduct sulfonate, alkylaryl APEO, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, alkyl or aralkyl phenol polyethenoxy base ether sodium sulfate, alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products, polyoxyethylene polyoxypropylene base ether block copolymers, lignin and derivative sulfonate thereof, the alkylaryl sulfonates of polymerization, polycarboxylate, fatty alcohol ethylene oxide adduct phosphate, alkylphenol-polyethenoxy base ether phosphate (ester), agriculture breast 0201, agriculture breast 1602, agriculture breast 602, Tween-20, one or more in Tween-80,
The dispersant of 0.3-10% by weight, dispersant is lignosulfite and solid content thereof, lignin and derivative sulfonate thereof, naphthalene or alkyl naphthalene formaldehyde condensation product and salt thereof, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol-polyethenoxy base ether sulfonate, polycarboxylate, fatty alcohol ethylene oxide adduct phosphate, alkylphenol-polyethenoxy base ether phosphate, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, polyoxyethylene poly-oxygen propylene aether block copolymer, carboxymethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, one or more in polyethylene glycol,
The tackifier of 0.1-5% by weight, tackifier are one or more in gum Arabic, xanthans, methylcellulose, carboxymethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, Sodium Polyacrylate, gaseous silicon oxide, Magnesiumaluminumsilicate;
The preservative of 0.1-2% by weight, preservative is one or more in formaldehyde, isothiazolinone, Buddhist nun uncle tortoise beetle ester, potassium sorbate, Sodium Benzoate;
The antifreezing agent of 1-8% by weight, antifreezing agent is one or more in ethylene glycol, propane diols, glycerine, urea;
The defoamer of 0-1% by weight, defoamer is organic silicone, C
10-20one or more in saturated fat acids, iodoxy amine, ester ethers;
The pH value regulator of 0-1% by weight, pH value regulator is one or more in sodium hydroxide, ammonium hydroxide, acetic acid, hydrochloric acid, phosphoric acid;
Finally mend to 100% by deionized water.
When preparing wetting powder, its auxiliary agent comprises:
The wetting agent of 1-15% by weight, wetting agent is aliphatic alcohol sulfate, alkylol polyoxyethylene groups ether sodium sulfate, alkylphenol-polyethenoxy base ether sodium sulfate, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, sodium alkyl sulfonate, alkylbenzenesulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, monoalkyl phenyl polyoxyethylene groups succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, alkyl amide taurate, alkylphosphonic, carboxylate, aliphatic alcohol polyethenoxy base ether, alkylphenol-polyethenoxy base ether, sorbitan fatty acid ester, sorbitan fatty acid ester polyoxyethylene ether, polyoxyethylene poly-oxygen propylene aether block copolymer, one or more in alkylphenol formaldehyde condensation product polyoxyethylene ether,
The dispersant of 1-20% by weight, dispersant is naphthalene or alkyl naphthalene formaldehyde condensation product and salt thereof, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol-polyethenoxy base ether sulfonate, lignin and derivative sulfonate thereof, the alkylaryl sulfonates of polymerization, polycarboxylate, fatty alcohol ethylene oxide adduct phosphate, alkylphenol-polyethenoxy based phosphates, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, polyoxyethylene groups polyoxypropylene base ether block copolymers, alkylphenol-polyethenoxy base ether phosphate, carboxymethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, one or more in polyethylene glycol,
Finally mend to 100% with filler.Filler is one or more in kaolin, clay, white carbon, dolomite, diatomite, bentonite, attapulgite, potter's clay, precipitated calcium carbonate.
When preparing water-dispersible granules, its auxiliary agent comprises:
The wetting agent of 1-20% by weight, wetting agent is aliphatic alcohol sulfate, alkylol polyoxyethylene groups ether sodium sulfate, alkylphenol-polyethenoxy base ether sodium sulfate, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, sodium alkyl sulfonate, alkylbenzenesulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, monoalkyl phenyl polyoxyethylene groups succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, alkyl amide taurate, alkylphosphonic, carboxylate, aliphatic alcohol polyethenoxy base ether, alkylphenol-polyethenoxy base ether, sorbitan fatty acid ester, sorbitan fatty acid ester polyoxyethylene ether, polyoxyethylene poly-oxygen propylene aether block copolymer, one or more in alkylphenol formaldehyde condensation product polyoxyethylene ether,
The dispersant of 1-20% by weight, dispersant is one or more in lignin and derivative sulfonate, naphthalene or alkyl naphthalene formaldehyde condensation product and salt thereof, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol-polyethenoxy base ether sulfonate, polycarboxylate, fatty alcohol ethylene oxide adduct phosphate, alkylphenol-polyethenoxy based phosphates, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, polyoxyethylene groups polyoxypropylene base ether block copolymers, alkylphenol-polyethenoxy base ether phosphate;
The binding agent of 1-20% by weight, binding agent is one or more in starch, dextrin, gum Arabic, soybean protein, casein, gelatine and gelatin, sodium silicate, polyvinylpyrrolidone, polyvinyl acetate, polyvinyl alcohol, polyethylene glycol, hydroxypropyl methylcellulose, methylcellulose;
The defoamer of 0-1% by weight, defoamer is one or more in amylalcohol, decyl alcohol, isooctanol, isopropyl alcohol, diisobutyl carbinol (DIBC), tributyl phosphate, phosphoric acid penta monooctyl ester, alkyl ether phosphate, sorbitan mono-laurate, aliphatic alcohol polyethenoxy ester, silicone based defoamer;
The disintegrant of 0-10% by weight, disintegrant is one or more in ammonium sulfate, polyvinylpyrrolidone, sodium sulphate, starch and derivative thereof, cellulose, sodium bicarbonate, sldium lauryl sulfate, sodium alginate, calcium chloride, sodium chloride, magnesium chloride, aluminium chloride, urea, bentonite;
The stabilizing agent of 0.5-15% by weight, stabilizing agent is one or more in chloro-1, the 2-expoxy propane of 3-, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, sorb sodium alkoxide anhydrous calcium chloride;
Finally mend to 100% with filler.Filler is one or more in attapulgite, potter's clay, kaolin, talcum, pyrophillite, wollastonite, calcium carbonate, dolomite dust, sepiolite, bentonite, diatomite, atlapulgite, white carbon.
Processing method is implemented by conventional method.Such as, when processing wetting powder, the fully drying of a certain amount of active ingredient, wetting agent, dispersant and filler, cooling, mixing, air-flow crushing can be milled to required particle diameter and mix, through namely obtaining product after the assay was approved.
Method of application depends on specific environment for use, in all cases, must ensure that their dispersion is trickle as far as possible and even.
When the present composition is used, according to the difference of the factors such as different crops, time of application, weather conditions, be generally 0.5-200ga.i/ha (active ingredient/hectare), be preferably 1-100ga.i/ha, general employing foliage applying, such as foliar spray process.
Composition pesticide provided by the present invention has the following advantages:
1. after glyoxalin and kasugarnycin mixture, the shortcoming that glyoxalin easily produces resistance can be overcome, the scope of application of medicament can be widened, extend the lasting period, improve drug effect.
2. after glyoxalin and kasugarnycin mixture, not only maintain the many merits of kasugarnycin biological bactericide, and the dosage of mixture reduces, drug effect increases substantially, and reduces production cost.
3., after glyoxalin and kasugarnycin mixture, there is obvious synergistic effect, the pesticide resistance of germ can be delayed, alleviate poisoning.
4. owing to preparing compatibility and the reasonable mixture ratio of each material needed for this series bactericidal agent, greatly can alleviate the toxic action to various natural enemy, this composition pesticide, to the infringement of ecotope and less pollution, is conducive to protecting person poultry safety.
Embodiment
In order to understand essence of an invention better, be described further by following examples, but the present invention is not limited to these embodiments.
Example of formulations
The preparation of example of formulations 1:8% kasugarnycin+2% glyoxalin wetting powder, each component proportion is:
The former medicine of 97% glyoxalin is 2.06%(weight ratio),
The former medicine of 74% kasugarnycin is 10.81%(weight ratio),
Wetting agent: sorbitan fatty acid ester is 5%(weight ratio),
Dispersant: alkylphenol-polyethenoxy base ether sulfonate is 5%(weight ratio),
Carrier 1: white carbon is 5%(weight ratio),
Carrier 2: kaolin is 72.13%(weight ratio).
Each component drying, cooling, mixing, air-flow crushing are mixed after being milled to reasonable particle diameter again and obtain product.
The preparation of example of formulations 2:50% glyoxalin+0.5% kasugarnycin water-dispersible granules, each component proportion is:
The former medicine of 97% glyoxalin is 51.55%(weight ratio),
The former powder of 74% kasugarnycin is 0.68%(weight ratio),
Wetting agent: sodium alkyl sulfonate is 2%(weight ratio),
Dispersant: alkylphenol-polyethenoxy base ether sulfonate is 3%(weight ratio),
Binding agent: hydroxypropyl methylcellulose is 3%(weight ratio),
Disintegrant: polyvinylpyrrolidone is 1%(weight ratio),
Stabilizing agent: butyl glycidyl ether is 1%(weight ratio),
Defoamer: organosilicon is 1%(weight ratio),
Carrier: kaolin is 36.77%(weight ratio).
Namely granulation after mixture is carried out ultra-fine grinding, drying, screening obtain product.
The preparation of example of formulations 3:20% glyoxalin+2% kasugarnycin suspending agent, each component proportion is:
The former medicine of 97% glyoxalin is 20.62%(weight ratio),
The former powder of 74% kasugarnycin is 2.70(weight ratio),
Wetting agent: polyoxyethylene polyoxypropylene base ether block copolymers is 3%(weight ratio),
Dispersant: methanonaphthalene formaldehyde condensation products sodium sulfonate is 5%(weight ratio),
Tackifier: xanthans is 0.5%(weight ratio),
Preservative: isothiazolinone 0.2%(weight ratio),
Antifreezing agent: glycerine 5%(weight ratio),
Defoamer: organic silicone 0.3%(weight ratio),
PH adjusting agent: hydrochloric acid is 0.03%(weight ratio),
Mend to 100% by deionized water.
Mentioned component is put into high-speed shearing machine be uniformly dispersed, be fully crushed to reasonable particle diameter through sand mill, filter and obtain suspending agent.
The preparation of example of formulations 4:3% glyoxalin+6% kasugarnycin suspending agent, each component proportion is:
The former medicine of 97% glyoxalin is 3.09%(weight ratio),
The former powder of 74% kasugarnycin is 8.11%(weight ratio),
Wetting agent: alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate is 1%(weight ratio),
Dispersant: alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate is 5%(weight ratio),
Tackifier: Magnesiumaluminumsilicate is 2.0%(weight ratio),
Preservative: Sodium Benzoate is 0.4%(weight ratio),
Antifreezing agent: ethylene glycol is 5%(weight ratio),
Defoamer: iodoxy amine is 0.3%(weight ratio),
PH adjusting agent: phosphoric acid is 0.12%(weight ratio),
Mend to 100% by deionized water.
Mentioned component is put into high-speed shearing machine be uniformly dispersed, be fully crushed to reasonable particle diameter through sand mill, filter and obtain suspending agent.
The preparation of example of formulations 5:3% glyoxalin+3% kasugarnycin wetting powder, each component proportion is:
The former medicine of 97% glyoxalin is 3.09%(weight ratio),
The former medicine of 74% kasugarnycin is 4.05%(weight ratio),
Wetting agent: dialkyl succinylsuccinate sulfonate is 3%(weight ratio),
Dispersant: lignin derivative sodium sulfonate is 6%(weight ratio),
Carrier: diatomite is 83.86%(weight ratio).
Each component drying, cooling, mixing, air-flow crushing are mixed after being milled to reasonable particle diameter again and obtain product.
Biological activity determination is tested
BIOLOGICAL ACTIVITY EXAMPLES 1: the indoor biometrics of Pyricularia oryzae is tested
1, for examination germ
The pathogenic bacteria (PyriculariaoryzaeCav) of rice blast: on the susceptible paddy rice on Agricultural University Of South China farm, be separated and cultivate, fungi preservation is in refrigerator.
2, test medicine
The former medicine of 74% kasugarnycin: Japanese Hokko Chemical Industry Co., Ltd.;
The former medicine of 97% glyoxalin: Japanese Hokko Chemical Industry Co., Ltd..
3, test method
Adopt mycelial growth rate method.Get the sterilizing culture dish of 9cm, pour 20MlPDA medium into, access Pyricularia oryzae bacterial classification after condensation in culture dish central authorities, cultivate under being placed in 25 DEG C of constant temperatures, for subsequent use when mycelia covers with culture dish edge.Reagent agent sterile water is mixed with desired concn, add in sterilizing PDA medium and mix, make the toxic medium of series concentration, be down flat plate, after solidifying, in superclean bench, access rice blast fungus bacterium block, bacterium block diameter is 5mm, puts into the central authorities of toxic flat board, one of mycelia is had to face down, often process and repeat for 4 times, be then placed in the incubator of 25 DEG C, adding sterile water is blank.Measure colony diameter by slide calliper rule right-angled intersection method after 1 week, get its mean value.
4, medicament preparation
Establish 9 formulas altogether: the former medicine of 74% kasugarnycin, the former medicine of 97% glyoxalin, 40% kasugarnycin+10% glyoxalin mixture, 10% kasugarnycin+10% glyoxalin mixture, 5% kasugarnycin+10% glyoxalin mixture, 3% kasugarnycin+10% glyoxalin mixture, 1% kasugarnycin+10% glyoxalin mixture, 0.5% kasugarnycin+10% glyoxalin mixture, 0.5% kasugarnycin+50% glyoxalin mixture..Wherein the former medicine of 74% kasugarnycin, 40% kasugarnycin+10% glyoxalin mixture, 10% kasugarnycin+10% glyoxalin mixture, 5% kasugarnycin+10% glyoxalin mixture, 3% kasugarnycin+10% glyoxalin mixture, 1% kasugarnycin+10% glyoxalin mixture and 0.5% kasugarnycin+10% glyoxalin mixture are made into 10,5,2.5,1.25 and 0.625 μ g/mL drug concentration.The former medicine of 97% glyoxalin and 0.5% kasugarnycin+50% glyoxalin mixture are made into 100,50,25,12.5 and 6.25 μ g/mL drug concentrations.
5, data survey and statistical analysis
Cultivate and measure colony diameter after 7 days, compare with blank, calculate the fungistatic effect that each chemicals treatment grows rice Pyricularia grisea, according to biostatistics probit value conversion table, inhibition percentage is converted into suppression probit value, with the log concentration set in testing as abscissa, suppression probit value is ordinate, calculate the toxicity regression linear equation of medicament, obtain EC
50value.The co-toxicity effect of two kinds of medicaments is passed judgment on co-toxicity coefficient (co-toxicitycoefficient, CTC).Co-toxicity coefficient is less than 80 for antagonism, and being greater than 120 for synergistic effect, is summation action time between 80-120.
Theoretical toxicity index TTI=standard agent toxicity index × standard agent is percentage+reagent agent toxicity index × reagent agent percentage in mixing assembly in mixing assembly
5, interpretation of result and discussion
Under different proportion, the synergistic results of two kinds of medicament mixtures is in table 1.As can be seen from Table 1, glyoxalin+kasugarnycin is all greater than 120 with co-toxicity coefficient during 10:40,10:10,10:5,10:3,10:1,10:0.5 and 50:0.5 proportioning, show that aforementioned proportion compound drug all has obvious synergistic effect, when wherein glyoxalin and kasugarnycin proportioning are 10:40, synergistic effect is the most obvious.
Kasugarnycin and glyoxalin synergistic results under table 1 different proportion
A represents glyoxalin; B represents kasugarnycin.
BIOLOGICAL ACTIVITY EXAMPLES 2: to the controlling experiment of angular leaf spot of cucumber
1, test medicine:
A:2% kasugarnycin aqua (Jiangmen Plant Protection Co., Ltd.'s product)
B:5% glyoxalin wetting powder (Japanese Hokko Chemical Industry Co., Ltd. product)
C:50% glyoxalin+0.5% kasugarnycin water-dispersible granules (Jiangmen Plant Protection Co., Ltd.'s preproduction)
2, test method:
Test is planted cucumber farm in one kind, sand flat town, Jiangmen City of Guangdong Province and is carried out.Cucumber was sowed on March 12nd, 2013 in test, about mu plants 3500 posts, and furrow wide 1.7 meters (bag ditch), spacing in the rows 17-20cm.During dispenser, cucumber is in initial bloom stage, and bottom blade has fragmentary angular leaf spot to occur, and does not use bactericide before this.If 3 process and 1 clear water contrast, repeat for four times, Gong16Ge community, randomized arrangement.20 square metres, every community.Drug concentration is arranged: 2% kasugarnycin aqua is by 140 grams/acre (according to active ingredients 2.8 grams/acre); 5% glyoxalin wetting powder 50 grams/acre (according to active ingredient meter 2.5 grams/acre); 50% glyoxalin+0.5% kasugarnycin water-dispersible granules 4 grams/acre (according to active ingredient meter 2.02 grams/acre).Even spraying is carried out, to squirt cucumber blade face and blade back for degree with the hand compressed sprayer of sharp agriculture board HD-400 type.In cucumber their early stage (April 20) dispenser once, every dispenser in 7 days once, the full phase is total to dispenser three times.Liquid consumption 60 liters/mu.
3, investigation and drug effect computational methods
First time dispenser before and third time dispenser after 10 days investigation the state of an illness.Community diagonal 5 sampling, often some investigation 3 strains, investigate whole blade, total number of sheets of record investigation and the sick number of sheets at different levels.Grade scale is as follows:
0 grade: without scab;
1 grade: lesion area accounts for less than 5% of whole leaf area
3 grades: lesion area accounts for the 6-10% of whole leaf area;
5 grades: lesion area accounts for the 11-20% of whole leaf area;
7 grades: lesion area accounts for the 21-50% of whole leaf area;
9 grades: lesion area accounts for more than 50% of whole leaf area.
Drug effect computational methods:
The total number of sheets investigated according to each community and the sick number of sheets at different levels, calculate disease index and preventive effect.
3, result of the test:
As can be seen from Table 2: in three process, 50% glyoxalin+0.5% kasugamycin water-dispersion granule preventive effect is best, after medicine 10 days is 74.59%, under higher active ingredient dosage 2% kasugarnycin aqua 64.96% and 5% glyoxalin wetting powder 61.43%, show significant mixed synergies.
Table 2 three kinds of chemical control angular leaf spot of cucumber test of pesticide effectiveness results
Note: above numeral is 4 mean values repeated.
BIOLOGICAL ACTIVITY EXAMPLES 3: to the field control effectiveness test of sigatoka control
1, test medicine:
A:2% kasugarnycin aqua (Jiangmen Plant Protection Co., Ltd.'s product)
B:15% glyoxalin wetting powder (Japanese Hokko Chemical Industry Co., Ltd. product)
C:10% glyoxalin+2% kasugarnycin suspending agent (Jiangmen Plant Protection Co., Ltd.'s preproduction)
2, test method:
Test Jiangmen city bureau of agriculture fruit tree research banana garden carry out.Experimental field all plant banana around, banana for test is that the planting of First Year is burnt.Duration of test, the breeding time of banana is in vegetative growth phase to taking out the flower bud phase, and banana planting density is 120 plants/acre, and the field management of banana is undertaken by local conventional method.This test establishes 3 to process and a clear water contrast, often processes and repeats for four times, Gong16Ge community, every community 5 strain banana, randomized arrangement.Medicament arranges concentration: 2% kasugarnycin aqua, dilutes 500 times (counting 40 mg/kg according to active ingredient); 15% glyoxalin wetting powder, dilutes 800 times (according to active ingredient meter 187.5 mg/kg); 10% glyoxalin+2% kasugarnycin suspending agent, dilutes 1500 times (according to active ingredient meter 80 mg/kg).Use knapsack manual compression sprayer dispenser, operating pressure 0.2-0.3MPa, shower nozzle is two shower nozzles, and aperture is 1.8mm.Adopt the dispenser of foliar spray method, after being watered by each medicament, respectively to plant leaf spray medicine, execute a medicine every 14 days, continuous administration 3 times.Note carrying out even spraying to the leave dual sides of banana, to squirt leave dual sides for degree.1st spraying time is on August 13rd, 2013, banana plant height 1.4-1.6m, and every strain has expansion 14-17, blade; 2nd spraying time is on August 27th, 2013, banana plant height 1.6-1.8m, and every strain has expansion 17-19, blade; 3rd spraying time is on September 10th, 2013, banana plant height 1.8-2.2m, and every strain has expansion 18-21, blade.Liquid consumption looks different growing stages and different, first time every strain spraying liquid 0.60 liter, the every strain spraying liquid 0.65 liter of second time, third time every strain spraying liquid 0.7 liter, blank sprays the clear water of equivalent.
3, investigation and drug effect computational methods
This test carries out Disease investigation in 14 days before first time dispenser and after third time dispenser.Every community random searching 3 strain banana, every strain banana down investigates 13 leaves from top, with the occurring degree of ocular estimate assessment blade.Total leaf tree of record investigation, the sick number of sheets and sick level.Grade scale is as follows:
0 grade: without scab;
1 grade: lesion area accounts for less than 5% of whole leaf area
3 grades: lesion area accounts for the 6-15% of whole leaf area;
5 grades: lesion area accounts for the 16-25% of whole leaf area;
7 grades: lesion area accounts for the 26-50% of whole leaf area;
9 grades: lesion area accounts for more than 50% of whole leaf area.
Drug effect computational methods:
The total number of sheets investigated according to each community and the sick number of sheets at different levels, calculate disease index and preventive effect.
Drug effect is calculated as follows:
4, result of the test
Table 3 result show: third time dispenser after 14 days, in 3 process, 1500 times of preventive effects are diluted the highest with 10% glyoxalin+2% kasugarnycin suspending agent, reach 80.46%, be much better than 69.87% of the 47.24% and 15% glyoxalin wettable powder dilution agent 800 times of the dilution 500 times of 2% kasugarnycin aqua, after showing glyoxalin and kasugarnycin mixture, there is good synergistic effect.
The sick field control effectiveness test result of sigatoka prevented and treated by table 3 respectively process
Note: above numeral is 4 mean values repeated.
Claims (5)
1. a composition pesticide, is characterized in that, composed of the following components by weight, glyoxalin accounts for 2-50% in the composition, and kasugarnycin accounts for 0.5-8%, and all the other are auxiliary agent.
2. composition pesticide according to claim 1, is characterized in that, by weight, glyoxalin accounts for 3-20% in the composition, and kasugarnycin accounts for 2-6%, and all the other are auxiliary agent.
3. composition pesticide according to claim 1 and 2, is characterized in that glyoxalin can be former medicine or the preparation of itself.
4. composition pesticide according to claim 1 and 2, is characterized in that kasugarnycin can be former medicine or the preparation of itself, or indicates the compound of active ingredient with kasugamycin hydrochloride hydrate.
5. composition pesticide according to claim 1 and 2, is characterized in that described composition pesticide mixture can become suspending agent, wetting powder or water-dispersible granules.
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| CN101715771A (en) * | 2009-11-30 | 2010-06-02 | 福建新农大正生物工程有限公司 | Sterilizing composition containing imibenconazole |
| WO2012077077A1 (en) * | 2010-12-08 | 2012-06-14 | Basf Se | Fungicidal mixtures |
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| CN101715771A (en) * | 2009-11-30 | 2010-06-02 | 福建新农大正生物工程有限公司 | Sterilizing composition containing imibenconazole |
| WO2012077077A1 (en) * | 2010-12-08 | 2012-06-14 | Basf Se | Fungicidal mixtures |
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