CN103947649A - Pesticide composition containing imibenconazole and kasugamycin - Google Patents
Pesticide composition containing imibenconazole and kasugamycin Download PDFInfo
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Abstract
The invention belongs to the pesticide field, and particularly relates to a pesticide composition taking a combination of imibenconazole and kasugamycin as the active ingredient. A main agent is a composition containing the following active ingredients by weight percentage: 2-50% of imibenconazole, 0.5-8% of kasugamycin, and the balance auxiliary agents. The composition utilizes an obvious synergistic effect after compounding imibenconazole and kasugamycin, is widely used for prevention and treatment of harm of germs on vegetables, paddy rice, fruit trees and other crops, has both protective and therapeutic effects on the crops, and shows an extremely strong antibacterial activity.
Description
Technical field
The invention belongs to pesticide field, be specifically related to a kind ofly contain the combination of glyoxalin (imibenconazole) and kasugarnycin (kasugamycin) as the composition pesticide of active component.
Background technology
Glyoxalin belongs to triazole type systemic fungicide, and Main Function mechanism is to destroy and stop the biosynthesis of the cell membrane important composition composition ergosterol of germ, thereby destroys the formation of cell membrane, causes germ dead.Glyoxalin is wide spectrum new type bactericide, has protection and therapeutic action.Can rapid osmotic after being sprayed onto on crop in plant corpus, resistance of rainwater washing against.Can effectively prevent and treat disease due to sac fungi, basidiomycetes and imperfect fungus, as to citrus scab, pear scab, anthracnose of grape, sigatoka have significant control efficiency.Under recommended dose, use, to environment, crop safety.
Kasugarnycin is a kind of low toxicity, systemic fungicide, is the special-purpose antibiotic of control rice blast.Sterilization mechanism is that the protein that affects germ synthesizes, and suppresses mycelia elongation and causes cell granulations.Can be used for control except the multiple diseases of 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 combines and be processed into pesticidal preparations use, with field, the control of a lot of germs is had to outstanding synergistic effect, so completed the present invention indoor.
Summary of the invention
The composition pesticide that the object of the present invention is to provide a class to contain glyoxalin and kasugarnycin, it has excellent synergy control efficiency.
Another object of the present invention is to provide various preparations of described composition pesticide and preparation method thereof.
A composition pesticide that comprises glyoxalin and kasugarnycin, percentage composition meter by weight, glyoxalin accounts for 2-50% in composition, and kasugarnycin accounts for 0.5-8%, and all the other are auxiliary agent.
Preferably, percentage composition meter by weight, glyoxalin accounts for 3-20% in 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 with kasugarnycin hydrochloride hydrate, indicates the compound of active ingredient.
Preferably, above-mentioned composition pesticide can be mixed into suspending agent, wetting powder or water-dispersible granules.
Above-mentioned auxiliary agent is:
When preparation 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 Fluhyzon formaldehyde condensation products 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 state silica, 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 conditioning agent of 0-1% by weight, pH value conditioning agent is one or more in sodium hydroxide, ammonium hydroxide, acetic acid, hydrochloric acid, phosphoric acid;
Finally by deionized water, mend to 100%.
When preparation 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 Fluhyzon formaldehyde condensation products 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 with filler, mend to 100%.Filler is one or more in kaolin, clay, white carbon, dolomite, diatomite, bentonite, attapulgite, potter's clay, precipitated calcium carbonate.
When preparation 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 Fluhyzon formaldehyde condensation products 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 that 3-is chloro-1, one or more in 2-expoxy propane, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, sorb sodium alkoxide anhydrous calcium chloride;
Finally with filler, mend to 100%.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 can be implemented by conventional method.For example, while processing wetting powder, can a certain amount of active ingredient, wetting agent, dispersant and filler is fully dry, cooling, mixing, air-flow crushing be milled to required particle diameter and mix, obtains product through after the assay was approved.
Method of application depends on specific environment for use, in all cases, must guarantee that their dispersion is trickle as far as possible and even.
When the present composition is used, difference according to factors such as different crops, time of application, weather conditions, is generally 0.5-200g a.i/ha (active ingredient/hectare), is preferably 1-100g a.i/ha, the general foliage applying that adopts, for example foliar spray is processed.
Composition pesticide provided by the present invention has the following advantages:
1. after glyoxalin and kasugarnycin are mixed, can overcome the shortcoming that glyoxalin easily produces resistance, can widen the scope of application of medicament, extend the lasting period, improve drug effect.
2., after glyoxalin and kasugarnycin are mixed, not only kept the many merits of kasugarnycin biological bactericide, and the reduction of the dosage of mixture, drug effect increases substantially, and has reduced production cost.
3. after glyoxalin and kasugarnycin are mixed, there is obvious synergistic effect, can delay the pesticide resistance of germ, alleviated poisoning.
4. due to compatibility and the reasonable mixture ratio of required each material of this series bactericidal agent of preparation, can greatly alleviate the toxic action to various natural enemies, this composition pesticide, to the infringement of ecotope and less pollution, is conducive to protect person poultry safety.
Embodiment
In order to understand better essence of an invention, by following examples, be described further, but the present invention is not limited to these embodiment.
FORMULATION EXAMPLE
The preparation of FORMULATION EXAMPLE 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 is dry, cooling, mixing, air-flow crushing mix and obtain product after being milled to reasonable particle diameter again.
The preparation of FORMULATION EXAMPLE 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).
By mixture carry out granulation after ultra-fine grinding, dry, sieve and obtain product.
The preparation of FORMULATION EXAMPLE 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),
By deionized water, mend to 100%.
Mentioned component is put into high-speed shearing machine and be uniformly dispersed, through sand mill, be fully crushed to reasonable particle diameter, filter and obtain suspending agent.
The preparation of FORMULATION EXAMPLE 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),
By deionized water, mend to 100%.
Mentioned component is put into high-speed shearing machine and be uniformly dispersed, through sand mill, be fully crushed to reasonable particle diameter, filter and obtain suspending agent.
The preparation of FORMULATION EXAMPLE 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 is dry, cooling, mixing, air-flow crushing mix and obtain product after being milled to reasonable particle diameter again.
Biological activity determination test
Biologically active embodiment 1: the indoor biometrics test to Pyricularia oryzae
1, for examination germ
The pathogenic bacteria of rice blast (Pyricularia oryzae Cav): on the susceptible paddy rice on Agricultural University Of South China farm, separated cultivation, bacterial classification is stored 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 20Ml PDA medium into, after condensation, access Pyricularia oryzae bacterial classification in culture dish central authorities, be placed under 25 ℃ of constant temperatures and cultivate, standby when mycelia is covered with culture dish edge.Reagent agent is mixed with to desired concn with sterile water, 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 piece, bacterium piece diameter is 5mm, puts into the central authorities of toxic flat board, there is one of mycelia to face down, every processing 4 times repeats, and is then placed in the incubator of 25 ℃, and adding sterile water is blank.After 1 week, by slide calliper rule right-angled intersection method, measure colony diameter, get its mean value.
4, medicament preparation
Establish altogether 9 formulas: 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, with blank comparison, calculate the fungistatic effect of each chemicals treatment to rice Pyricularia grisea growth, according to biostatistics probit value conversion table, inhibition percentage is converted into inhibition probit value, and the concentration logarithm of setting in testing of take is abscissa, and inhibition probit value is ordinate, calculate the toxicity regression linear equation of medicament, obtain EC
50value.With co-toxicity coefficient (co-toxicity coefficient, CTC), pass judgment on the co-toxicity effect of two kinds of medicaments.Co-toxicity coefficient is less than 80 for antagonism, is greater than 120 for synergistic effect, is summation action in the time of between 80-120.
Theoretical toxicity index TTI=standard medicament toxicity index * standard medicament percentage+reagent agent toxicity index * reagent agent percentage in mixing assembly in mixing assembly
5, interpretation of result and discussion
The synergy that under different proportion, two kinds of medicaments are mixed the results are shown in Table 1.As can be seen from Table 1, glyoxalin+kasugarnycin during with 10:40,10:10,10:5,10:3,10:1,10:0.5 and 50:0.5 proportioning co-toxicity coefficient be all greater than 120, 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 synergy result under table 1 different proportion
A represents glyoxalin; B represents kasugarnycin.
Biologically active embodiment 2: the control test to 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.Test cucumber was sowed on March 12nd, 2013, mu plantation 3500 post left and right, 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 before this bactericide.If 3 processing and 1 clear water contrast, repeat Gong16Ge community, randomized arrangement for four times.20 square metres of every communities.Drug concentration arranges: 2% kasugarnycin aqua is by 140 grams/acre (according to 2.8 grams/acre of active ingredients); 5% 50 grams/acre of glyoxalin wetting powders (according to 2.5 grams/acre of active ingredient meters); 50% 4 grams/acre of glyoxalin+0.5% kasugarnycin water-dispersible granules (according to 2.02 grams/acre of active ingredient meters).With the hand compressed sprayer of sharp agriculture board HD-400 type, carry out even spraying, take and squirt cucumber blade face and blade back is degree.In cucumber their early stage (April 20) dispenser once, every dispenser in 7 days once, the full phase is total to dispenser three times.60 liters/mu of liquid consumptions.
3, investigation and drug effect computational methods
10 days investigation state of an illness before dispenser for the first time and after dispenser for the third time.5 samplings of community diagonal, every some investigation 3 strains, investigate whole blades, total number of sheets and the sick number of sheets at different levels of record investigation.Grade scale is as follows:
0 grade: without scab;
1 grade: lesion area accounts for below 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 the more than 50% of whole leaf area.
Drug effect computational methods:
According to total number of sheets and the sick number of sheets at different levels of each community investigation, calculate disease index and preventive effect.
3, result of the test:
As can be seen from Table 2: in three processing, 50% glyoxalin+0.5% kasugamycin water-dispersion granule preventive effect is best, after medicine 10 days is 74.59%, apparently higher than 61.43% of 64.96% and 5% glyoxalin wetting powder of 2% kasugarnycin aqua under higher active ingredient dosage, shown significant mixed synergies.
Three kinds of chemical control angular leaf spot of cucumber test of pesticide effectiveness results of table 2
Note: above numeral is 4 mean values that repeat.
Biologically active embodiment 3: the field control effectiveness test to 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, the planting that banana for test is First Year is burnt.Duration of test, the breeding time of banana, banana planting density was 120 plants/acre in vegetative growth phase to taking out the flower bud phase, the field management of banana is undertaken by local conventional method.3 processing and a clear water contrast are established in this test, and every processing repeats for four times, Gong16Ge community, every community 5 strain bananas, randomized arrangement.Medicament arranges concentration: 2% kasugarnycin aqua, dilutes 500 times (according to active ingredient, counting 40 mg/kg); 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, aperture is 1.8mm.Adopt the dispenser of foliar spray method, after each medicament is watered, to plant leaf spray medicine, every 14 days, execute one time medicine, continuous administration 3 times respectively.Attention is carried out even spraying to the leave dual sides of banana, take and squirts leave dual sides as degree.The 1st spraying time is on August 13rd, 2013, banana plant height 1.4-1.6m, and every strain has 14-17, the blade of expansion; The 2nd spraying time is on August 27th, 2013, banana plant height 1.6-1.8m, and every strain has 17-19, the blade of expansion; The 3rd spraying time is on September 10th, 2013, banana plant height 1.8-2.2m, and every strain has 18-21, the blade of expansion.Liquid consumption is looked different growing stages and difference, and every strain spraying liquid is 0.60 liter for the first time, and every strain spraying liquid is 0.65 liter for the second time, and every strain spraying liquid is 0.7 liter for the third time, and blank sprays the clear water of equivalent.
3, investigation and drug effect computational methods
State of an illness investigation is carried out in this test for before dispenser for the first time and after dispenser for the third time 14 days.Every community random searching 3 strain bananas, every strain banana is down investigated 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 below 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 the more than 50% of whole leaf area.
Drug effect computational methods:
According to total number of sheets and the sick number of sheets at different levels of each community investigation, calculate disease index and preventive effect.
Drug effect is calculated as follows:
4, result of the test
Table 3 result shows: after dispenser 14 days for the third time, in 3 processing, the highest with 1500 times of preventive effects of 10% glyoxalin+2% kasugarnycin suspending agent dilution, reach 80.46%, be much better than 2% kasugarnycin aqua 500 times of dilutions 800 times of 47.24% and 15% glyoxalin wettable powder dilution agents 69.87%, show to there is good synergistic effect after glyoxalin and kasugarnycin are mixed.
Each processing of table 3 prevents and treats the sick field control effectiveness test result of sigatoka
Note: above numeral is 4 mean values that repeat.
Claims (5)
1. a composition pesticide that comprises glyoxalin and kasugarnycin, is characterized in that, by weight, glyoxalin accounts for 2-50% in 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 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 with kasugarnycin hydrochloride hydrate, indicates the compound of active ingredient.
5. composition pesticide according to claim 1 and 2, is characterized in that described composition pesticide can be mixed into suspending agent, wetting powder or water-dispersible granules.
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|---|---|---|---|---|
| CN107136104A (en) * | 2017-05-31 | 2017-09-08 | 江门市植保有限公司 | A kind of composition pesticide containing kasugarnycin and its application |
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