CN103704255A - Sterilization and insecticide composition containing pyraclostrobin - Google Patents
Sterilization and insecticide composition containing pyraclostrobin Download PDFInfo
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- CN103704255A CN103704255A CN201310730011.0A CN201310730011A CN103704255A CN 103704255 A CN103704255 A CN 103704255A CN 201310730011 A CN201310730011 A CN 201310730011A CN 103704255 A CN103704255 A CN 103704255A
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Abstract
The invention relates to a sterilization and insecticide composition containing pyraclostrobin. The sterilization and insecticide composition is characterized by comprising effective components including imicyafos and pyraclostrobin in a weight part ratio of 40:1 to 1:60, wherein the total parts by weight of the effective components including the imicyafos and the pyraclostrobin accounts for 1%-80% of the total parts by weight of the preparation; the sterilization and insecticide composition can be prepared into pesticide preparations in the form of wettable powder, a suspending agent, emulsifiable oil, a micro-emulsion, an emulsion in water and water dispersible granules. Compared with a single preparation, the sterilization and insecticide composition has the advantages that the application range is wider; the sterilization and insecticide composition can be used for killing insects and preventing diseases; the imicyafos and the pyraclostrobin are compounded to enhance stability and the prevention effect on diseases and insect pests is greatly improved; the insecticide resistance of pests is obviously delayed; the repeated utilization frequency of pesticides is reduced; the use amount of the pesticides is reduced and the agricultural cost is reduced; the sterilization and insecticide composition has small toxicity and low residual amount, and is good for environmental friendliness.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, be specifically related to a kind of Pesticidal combination that contains pyraclostrobin.
Background technology
Imicyafos (AKD-3088) is a kind of cyanamide heterocyclic organic matter, it is combined by the sub-imidazolidine of cyano group of asymmetric organic phosphor and nicotinic insecticide, can be used for the crops such as radish, carrot, strawberry, eggplant, tomato, cucumber, muskmelon, watermelon, sweet potato and potato, its chemical structural formula is:
Pyraclostrobin (having another name called pyraclostrobin), English name pyraclostrobin, chemical name is 2 chloro-N-(4 ' one chlordiphenyl one 2 one bases) vitamin PP.For New-type wide-spectrum bactericide; there is protection, treatment and radical cure effect; the diseases such as the powdery mildew of melon, vegetables, downy mildew, scab, leaf spot, epidemic disease are had to stronger control efficiency; lasting period is long; under recommended dose to crop safety; can promote the absorption of nitrogen, strengthen the resistance of crop, improve crop quality.Its chemical structural formula is:
。
The excellent characteristics such as the pyraclostrobin mode of action is very unique, has the activity of efficient, wide spectrum, treatment, protection, infiltration, interior suction, and resistance of rainwater washing against, lasting period are long, do not have cross resistance with other bactericide on domestic market.The protection of pyraclostrobin and therapeutic activity are comparatively outstanding in addition; but permeability and systemic activity a little less than, only there is local systemic activity, become the large short slab of one in its mechanism of action; also brought some actual agricultural problems thereupon, the control of disease has been stablized not etc.Long-term use single insecticide or bactericide, insect or germ are easy to develop immunity to drugs, and pesticide dosage is increased, and cause large, residual many, the adverse consequences such as drug effect is poor of high poison, consumption, and effect field are more single.The different mechanisms of action and without the insecticide of cross resistance and bactericide rational mixture by a certain percentage, can improve crop disease prevention effect, reduce dosage, residual few, minimizing environmental pollution, effectively reduces the pesticide resistance of crop.
Summary of the invention
The object of the present invention is to provide a kind of efficient insecticidal and bactericidal composition; can desinsection again can sterilization, promote the disease-resistant insect resistance capacity of crop plant simultaneously, my research staff of company finds through indoor, outdoor formulation screening test in a large number; the imicyafos of mechanism of action uniqueness and pyraclostrobin composite has beyond thought synergistic effect; it is wide that said composition has effect field, can desinsection again can sterilization, and consumption is few; preventive effect is high; residual few, the lasting period is long, is conducive to environmental protection.
The solution of the present invention is achieved by the following technical measures:
A kind of insecticidal and bactericidal composition that contains pyraclostrobin, its feature is that this insecticidal and bactericidal composition is to take imicyafos and the pyraclostrobin preparation as two yuan of composite insecticidal and bactericidal compositions of active ingredient, all the other components in preparation outside active ingredient are that agricultural chemicals used additives and preparation are prepared complementary component, wherein in this insecticidal and bactericidal composition, the ratio of weight and number of active ingredient imicyafos and pyraclostrobin is 40: 1～1: 60, in insecticidal and bactericidal composition preparation, the total weight parts of active ingredient imicyafos and pyraclostrobin accounts for 1%～80% of whole total formulation weight amount part.
In above-described insecticidal and bactericidal composition, the ratio of weight and number of active ingredient imicyafos and pyraclostrobin is more preferably 30: 1～1: 35.
The percentage that in above-described insecticidal and bactericidal composition preparation, the total weight parts of active ingredient imicyafos and pyraclostrobin accounts for whole total formulation weight amount part more preferably 1%～40%.
The pesticidal preparations formulation that above-described insecticidal and bactericidal composition can be mixed with is wetting powder, suspending agent, missible oil, microemulsion, aqueous emulsion and water dispersible granules.
When above-described insecticidal and bactericidal composition is wetting powder, in preparation, the ratio of weight and number of each component is:
imicyafos 1~40
Pyraclostrobin 1 ~ 60
Dispersant 3 ~ 12
Wetting agent 5 ~ 15
Filler 10 ~ 70.
The concrete procedure of processing of this insecticidal and bactericidal composition wetting powder is: by above-mentioned formula, active principle imicyafos and active principle pyraclostrobin and dispersant, wetting agent and filler are mixed, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of insecticidal and bactericidal composition of the present invention.
When above-described insecticidal and bactericidal composition is suspending agent, in preparation, the ratio of weight and number of each component is:
imicyafos 1~40
Pyraclostrobin 1 ~ 60
Dispersant 5～15
Antifreezing agent 1～5
Thickener 1～5
Defoamer 0.1～2
Water is supplied 100 parts.
The concrete production stage of this suspending agent is for first mixing other auxiliary agents, through high speed shear, mix, add active principle imicyafos and active principle pyraclostrobin, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of insecticidal and bactericidal composition of the present invention.
When above-described insecticidal and bactericidal composition is aqueous emulsion, in preparation, the ratio of weight and number of each component is:
imicyafos 1~40
Pyraclostrobin 1 ~ 60
Emulsifier 3～15
Solvent 5～20
Stabilizing agent 2～15
Antifreezing agent 0.1～3
Defoamer 0.1～3
Thickener 0.2～4
Water is supplied 100 parts.
The concrete production stage of this aqueous emulsion is: first active principle imicyafos and pyraclostrobin, solvent and emulsifier, stabilizing agent are added together, make to be dissolved into uniform oil phase; Part water, antifreezing agent, defoamer are mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add thickener, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of insecticidal and bactericidal composition of the present invention.
When above-described insecticidal and bactericidal composition is water dispersible granules, in preparation, the ratio of weight and number of each component is:
imicyafos 1~40
Pyraclostrobin 1 ~ 60
Dispersant 3 ~ 15
Wetting agent 5 ~ 20
Disintegrant 1 ~ 5
Filler 10 ~ 70.
The concrete procedure of processing of this insecticidal and bactericidal composition water dispersible granules is: by above-mentioned formula, active principle imicyafos, pyraclostrobin and dispersant, wetting agent, disintegrant and filler are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of insecticidal and bactericidal composition of the present invention.
When above-described insecticidal and bactericidal composition is cream preparation, in preparation, the ratio of weight and number of each component is:
imicyafos 1～40
Pyraclostrobin 1～60
Emulsifier 5～18
Solvent 20～50
Synergist 1～5.
The concrete production stage of this cream preparation is for first adding active ingredient imicyafos, pyraclostrobin the oily liquids that becomes transparent and homogeneous after adding again emulsifier, synergist to stir after dissolving completely in solvent, filling, can be made into the cream preparation of the present composition.
When above-described insecticidal and bactericidal composition is microemulsion, in preparation, the ratio of weight and number of each component is:
imicyafos 1～40
Pyraclostrobin 1～60
Emulsifier 10～30
Antifreezing agent 1～5
Stabilizing agent 1～15
Conventional solvent cosolvent 20～50.
The concrete production stage of this microemulsion is: former medicine imicyafos, pyraclostrobin are dissolved completely with cosolvent, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Described emulsifier is selected from least one in calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, polyoxyethylene aliphatic alcohol ether.
Described solvent is at least one in dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), water equal solvent.
Described dispersant is selected from least one in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid glyceride APEO.
Described wetting agent is selected from: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, pull open at least one in powder copper rosinate X., wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene triphenylethylene phosphenylic acid salt, spaonin powder, silkworm excrement, soapberry powder.
Described disintegrant is selected from: at least one in bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, sodium bicarbonate.
Described thickener is selected from: at least one in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol.
Described stabilizing agent is selected from: at least one in sodium citrate, resorcinol.
Described antifreezing agent is selected from: at least one in ethylene glycol, propane diols, glycerine.
Described defoamer is selected from: silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10at least one in aliphatic alcohols compound.
Described filler is selected from: at least one in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate.
Above-described insecticidal and bactericidal composition preparation is when using, can select to use to insect, also can use to the existence place of insect, also can be to soil application, can select crop seed, napiform root etc. to be carried out to the various ways such as impregnation process, coating processing, Dressing, also can spray to plant.
Insecticidal and bactericidal composition of the present invention can prevent and treat nematoda, etc. the various insects such as sufficient class, coleoptera class pest, Lepidoptera class pest, gastropod, orthoptera pest, phytotrophy acarid class, thrips insect, Diptera pest, Hymenoptera insect, hidden wing order insect, Anoplura insect, Isoptera insect, Semiptera insect, damp insects, centipede insects, thousand-legger class.Especially to destroy the insect of agriculture horticultural crop and trees etc., the insect of destroying the seed of agriculture horticultural crop and trees in soil, such as nematoda, etc. sufficient class, coleoptera class pest, Lepidoptera class pest, gastropod, orthoptera pest, phytotrophy acarid class, Semiptera insect preventive effect remarkable.
The above nematode pests comprises the pratylenchus classes such as pratylenchus, pseudo-Pratylenchidae, Lu Si Pratylenchidae, disability Pratylenchidae, the Cyst nematode such as soybean cyst nematode Heterodera glycines, globodera rostochiensis class, the root-knot nematode such as peanut root-knot nematode, Meloidogyne incognita class, the Aphelenchoidea classes such as aphelenchoides besseyi, leaf bud nematode, species of Tylenchorhynchus Nematodes class, loop wire insects, needlework insects, long capsule nematoda, burr nematoda, nematode on strawberry, pine wood nematode.In addition the insects such as aphid, leafhopper, plant hopper, chrysomelid, wireworm, cutworm, diamond-back moth, imported cabbageworm, rice thrips are all had to favorable effect.
Insecticidal and bactericidal composition of the present invention can be used for preventing and treating peanut, cucumber, paddy rice, vegetables, fruit tree, tobacco, tea tree, ornamental plants, the leaf blight of the crops such as lawn, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, shot hole, brown spot, damping offs etc. are by sac fungi, basidiomycetes, the microbial disease of imperfect fungus and ovum, especially to the Curcurbitaceae in vegetables, Solanaceae, Cruciferae, more incident powdery mildew in pulse family and fruit, stalk break, damping off, epidemic disease, southern blight, bacterial wilt, anthracnose, fusarium wilt, downy mildew, climing rot, verticillium wilt, the control efficiency of the damage by disease and insect such as nematode is particularly remarkable.
It is wider that insecticidal and bactericidal composition of the present invention is compared single dose sphere of action, can desinsection again can diseases prevention, both composite obvious stability separately that strengthened, improve greatly to the preventive effect of damage by disease and insect; Obviously delayed in addition the generation of pest resistance to insecticide, reduced agricultural chemicals Reusability number of times, reduced agricultural chemicals usage amount, reduced agricultural cost, and toxicity is little, residual quantity is lower, is more beneficial to environmental protection.Therefore this insecticidal and bactericidal composition has good economic benefit and environmental benefit, has larger application value.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The method that the present invention adopts indoor bioassay and field trial to combine.If no special instructions, the ratio of below mentioning (comprising percentage) is all ratio of weight and number.
Embodiment 1: by 15 parts of imicyafos, 3 parts of pyraclostrobins, 8 parts of dispersants, 12 parts of wetting agents and 62 parts of mixing of filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, making the wetting powder of insecticidal and bactericidal composition of the present invention.
Embodiment 2: by 3 parts of imicyafos, 25 parts of pyraclostrobins, 10 parts of dispersants, 15 parts of wetting agents and 47 parts of mixing of filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, making the wetting powder of insecticidal and bactericidal composition of the present invention.
Embodiment 3: by 24 parts of imicyafos, 6 parts of pyraclostrobins, 12 parts of dispersants, 15 parts of wetting agents and 43 parts of mixing of filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, making the wetting powder of insecticidal and bactericidal composition of the present invention.
Embodiment 4: by 8 parts of dispersants, 1 part of antifreezing agent, 4 parts of thickeners, 1 part of defoamer, 71 parts of mixing of water, through high speed shear, mix, add successively 15 parts of imicyafos, 5 parts of pyraclostrobins, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of insecticidal and bactericidal composition of the present invention.
Embodiment 5: by 9 parts of dispersants, 2 parts of antifreezing agents, 4 parts of thickeners, 1 part of defoamer, 64 parts of mixing of water, through high speed shear, mix, add successively 10 parts of imicyafos, 10 parts of pyraclostrobins, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of insecticidal and bactericidal composition of the present invention.
Embodiment 6: by 12 parts of dispersants, 2 parts of antifreezing agents, 3 parts of thickeners, 1 part of defoamer, 52 parts of mixing of water, through high speed shear, mix, add successively 15 parts of imicyafos, 15 parts of pyraclostrobins, in ball crusher, abrading-ball is 2 ~ 3 hours, make a diameter all below 5mm, make the suspending agent preparation of insecticidal and bactericidal composition of the present invention.
Embodiment 7: 8 parts of imicyafos18 parts, 8 parts of pyraclostrobins, 22 parts of solvents, 8 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 1 part, part water, 2 parts of antifreezing agents, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 4 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of insecticidal and bactericidal composition of the present invention.
Embodiment 8: 7 parts of 1 part of imicyafos, 35 parts of pyraclostrobins, 25 parts of solvents, 10 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 2 parts, part water, 1 part of antifreezing agent, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 3 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of insecticidal and bactericidal composition of the present invention.
Embodiment 9: 8 parts of 35 parts of imicyafos, 1 part of pyraclostrobin, 24 parts of solvents, 12 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 2 parts, part water, 1 part of antifreezing agent, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 3 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of insecticidal and bactericidal composition of the present invention.
Embodiment 10: 43 parts of 8 parts of imicyafos, 22 parts of pyraclostrobins, 12 parts of dispersants, 10 parts of wetting agents, 5 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of insecticidal and bactericidal composition of the present invention.
Embodiment 11: 51 parts of 22 parts of imicyafos, 2 parts of pyraclostrobins, 11 parts of dispersants, 12 parts of wetting agents, 2 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of insecticidal and bactericidal composition of the present invention.
Embodiment 12: 51 parts of 15 parts of imicyafos, 10 parts of pyraclostrobins, 8 parts of dispersants, 13 parts of wetting agents, 3 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of insecticidal and bactericidal composition of the present invention.
Embodiment 13: by becoming the oily liquids of transparent and homogeneous after adding again 5 parts of 8 parts of emulsifier, synergist to stir after 10 parts of imicyafos, 7 parts of pyraclostrobins, 70 parts of complete mixed dissolutions of solvent, filling, can be made into the cream preparation of the present composition.
Embodiment 14: by becoming the oily liquids of transparent and homogeneous after adding again 3 parts of 8 parts of emulsifier, synergist to stir after 12 parts of imicyafos, 6 parts of pyraclostrobins, 72 parts of complete mixed dissolutions of solvent, filling, can be made into the cream preparation of the present composition.
Embodiment 15: will after adding 2 parts of 10 parts of emulsifier, synergist to stir after 8 parts of imicyafos, 18 parts of pyraclostrobins, 62 parts of complete mixed dissolutions of solvent, become the oily liquids of transparent and homogeneous again, filling, can be made into the cream preparation of the present composition.
Embodiment 16: 11 parts of 16 parts of former medicine imicyafos, pyraclostrobin are dissolved completely with cosolvent, then add other compositions such as 9 parts of emulsifier, 2 parts of antifreezing agents, 8 parts of stabilizing agents, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Embodiment 17: 3 parts of 25 parts of former medicine imicyafos, pyraclostrobin are dissolved completely with cosolvent, then add other compositions such as 11 parts of emulsifier, 2 parts of antifreezing agents, 7 parts of stabilizing agents, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Embodiment 18: 22 parts of 3 parts of former medicine imicyafos, pyraclostrobin are dissolved completely with cosolvent, then add other compositions such as 8 parts of emulsifier, 2 parts of antifreezing agents, 10 parts of stabilizing agents, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
field experiment example: field experiment control diamond-back moth.
(1) test method
Test on May 9th, 2013 to suburb, Shouguang City, 19 in May Shandong Province truck garden and carry out.Tested on May 9th, 2012 and carry out routine to water spray by each processing design concentration.Spraying equipment is WF-16 type knapsack hand sprayer, and shower nozzle is single fan nozzle, and operating pressure is 0.2-0.4Mpa, and spray amount is 0.36-0.48L/min, carries out routine spraying, makes every effort to evenly thoughtful during spray medicine.During dispenser, field diamond-back moth is 1～2 instar larvae peak period.Every 667 m
2to the water yield, be 70kg.
Duration of test weather is good, and daily mean temperature is 16～24 ℃, dispenser fine day on the same day.
(2) investigation method
In dispenser Qian Mei community, press 5 samplings of diagonal, every wild cabbage 10～11 strains (depending on insect density) of choosing Eggs of Diamondback Moth and larva.Statistics is demarcated diamondback moth larvae head number in strain, using this as dispenser before insect population radix.After dispenser the 3rd, 7,10d investigates respectively the diamondback moth larvae number of determining residual survival in strain. using and proofread and correct insect population decline rate as control efficiency.
(3) drug effect computational methods
Insect population decline rate (%)=
* 100
Correction preventive effect (%)=
* 100
(4) poisoning investigation method
Duration of test is observed and is respectively processed community wild cabbage well-grown, all finds no poisoning phenomenon and occurs.
(5) field control effectiveness test result of the test
Table 1 treatment agent control wild cabbage diamond-back moth field control effectiveness test result
As can be seen from Table 1, the Mixed Pharmacy of different proportion, carries out field experiment by different consumptions, after medicine its that control efficiency of Laphygma exigua Hubner is all better than contrasting medicament 15%imicyafos+3% pyraclostrobin control diamond-back moth quick-acting is fast, efficiency time is long, and control efficiency is good.After medicine, the insecticidal effect of 7 days reaches respectively 91.45%, 91.55%, 93.66%, and insecticidal effect increases progressively along with the increase of consumption.According to experimental observation, each medication is processed wild cabbage all without poisoning, also find that it also has good control efficiency to insects such as diamond-back moths, the wild cabbage that 20%imicyafos SC processes in addition occurs that disease is more, than the much about 10%-15% of disease plant with complex preparation simultaneously.
field trial: the preventive effect to powdery mildew of cucumber
(1) basic condition experimental field:
Experimental field be located at Shouguang, Weifang, Shandong, select the medium cucumber field of occurring degree for experimental field, soil fertility is medium, and irrigation and drainage are convenient.Dispenser weather in Augusts on the same day 7 is clear to cloudy, 30 ℃ of mean temperature of air, relative moisture 80%, 2～3 grades of southerlies; August 14 was fine day, 30 ℃ of mean temperature of air, relative moisture 75%, 2～3 grades of southerlies.
(2) spraying time and method
At the 1st medicine of powdery mildew of cucumber their early stage (August 7) spray, after 7d (August 14) spray medicine for the second time, spray altogether 2 times.Adopt 3WBS-16 knapsack sprayer (operating pressure 0.2～0.3MPa), according to per hectare amount of liquid medicine, 750L carries out foliar spray.
(3) pilot survey and data processing
Investigation state of an illness radix before medicine, test is investigated 3 times altogether, i.e. disease index investigation before medicine, preventive effect investigation in 10 days after the 1st medicine, 10 days and preventive effect investigation in 20 days after 2 medicines.
(4) drug effect computational methods
Diseased plant rate (%)=diseased plant number/investigate total strain number * 100
Disease index=∑ (the sick number of sheets * relative level numerical value at different levels)/(investigating the total number of sheets * 9) * 100
Control efficiency (%)=(disease index after the front disease index * treatment region medicine of 1-(blank district medicine)/(the front disease index of disease index * treatment region medicine after blank district medicine)) * 100
(5) poisoning investigation method
After dispenser, whether 7d range estimation medicament has poisoning to crop continuously.
(6) experimental result and analysis
Table 2 is respectively organized test medicine and is processed the test effect of preventing and treating powdery mildew of cucumber
Interpretation of result:
As shown in Table 2, the effect that the combination that is mixed of 5%imicyafos+18% pyraclostrobin prevents and treats powdery mildew of cucumber is more remarkable, after medicine 10 days for the first time, 10 days and 20 days preventive effects 92.28%, 93.91% and 92.78% the highest after medicine for the second time, 25% pyraclostrobin EC for the second time after medicine 10 days preventive effects the highest be 87.74%, the effect of complex preparation is significantly better than two kinds of single doses, has not only significantly improved the effect for powdery mildew of cucumber, and has further extended its lasting period.According to experimental observation, each medication processing all without poisoning, occurs that with the cucumber that 25% pyraclostrobin EC single dose is processed insect pest is more serious, than the much about 10%-15% of insect pest plant with complex preparation to cucumber simultaneously.
Claims (4)
1. an insecticidal and bactericidal composition that contains pyraclostrobin, it is characterized in that: this insecticidal and bactericidal composition is to take imicyafos and the pyraclostrobin preparation as two yuan of composite Pesticidal combinations of active ingredient, all the other components in preparation outside active ingredient are that agricultural chemicals used additives and preparation are prepared complementary component, wherein in this insecticidal and bactericidal composition, the ratio of weight and number of active ingredient imicyafos and pyraclostrobin is 40: 1～1: 60, in insecticidal and bactericidal composition preparation, the total weight parts of active ingredient imicyafos and pyraclostrobin accounts for 1%～80% of whole total formulation weight amount part.
2. a kind of insecticidal and bactericidal composition that contains pyraclostrobin according to claim 1, is characterized in that: in described insecticidal and bactericidal composition, the ratio of weight and number of active ingredient imicyafos and pyraclostrobin is more preferably 30: 1～1: 35.
3. a kind of insecticidal and bactericidal composition that contains pyraclostrobin according to claim 1, is characterized in that: the percentage that in described insecticidal and bactericidal composition preparation, the total weight parts of active ingredient imicyafos and pyraclostrobin accounts for whole total formulation weight amount part more preferably 1%～40%.
4. a kind of insecticidal and bactericidal composition that contains pyraclostrobin according to claim 1, is characterized in that: the pesticidal preparations formulation that described insecticidal and bactericidal composition can be mixed with is wetting powder, suspending agent, missible oil, microemulsion, aqueous emulsion and water dispersible granules.
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| CN107094801A (en) * | 2017-05-26 | 2017-08-29 | 广西南宁乐蕊生物科技有限责任公司 | A kind of bactericidal composition of Han Jia Betel extracts and pyraclostrobin |
| CN108353919A (en) * | 2018-03-12 | 2018-08-03 | 佛山市普尔玛农化有限公司 | A kind of killing nematode simultaneously can prevent composition of fungal disease and application thereof |
| CN110301451A (en) * | 2018-03-20 | 2019-10-08 | 江苏龙灯化学有限公司 | A kind of crop protection agents |
| CN113142236A (en) * | 2018-08-28 | 2021-07-23 | 侨昌现代农业有限公司 | Bactericide composition |
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| CN107094801A (en) * | 2017-05-26 | 2017-08-29 | 广西南宁乐蕊生物科技有限责任公司 | A kind of bactericidal composition of Han Jia Betel extracts and pyraclostrobin |
| CN108353919A (en) * | 2018-03-12 | 2018-08-03 | 佛山市普尔玛农化有限公司 | A kind of killing nematode simultaneously can prevent composition of fungal disease and application thereof |
| CN110301451A (en) * | 2018-03-20 | 2019-10-08 | 江苏龙灯化学有限公司 | A kind of crop protection agents |
| CN113142236A (en) * | 2018-08-28 | 2021-07-23 | 侨昌现代农业有限公司 | Bactericide composition |
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