CN106689161A - Picarbutrazox-containing bactericidal composition - Google Patents

Picarbutrazox-containing bactericidal composition Download PDF

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Publication number
CN106689161A
CN106689161A CN201611177884.3A CN201611177884A CN106689161A CN 106689161 A CN106689161 A CN 106689161A CN 201611177884 A CN201611177884 A CN 201611177884A CN 106689161 A CN106689161 A CN 106689161A
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picarbutrazox
fluopicolide
composition
bactericidal composition
agent
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Inventor
张承来
李欧燕
王芳
蒋卫国
戴兰芳
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DONGGUAN RUIDEFENG BIOLOGICAL SCIENCE AND TECHNOLOGY Co Ltd
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DONGGUAN RUIDEFENG BIOLOGICAL SCIENCE AND TECHNOLOGY Co Ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/18—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, directly attached to a heterocyclic or cycloaliphatic ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to a picarbutrazox-containing bactericidal composition. The effective components are picarbutrazox and fluopicolide in a mass ratio of 50:1-1:50, and the mass percent of the active components in the composition is 5-80%. The composition can be prepared into suspending agents, wettable powder, water-dispersible granules and other preparation formulations. The bactericidal composition is applied to farmland, orchards and the like and used for preventing and treating multiple oomycetes diseases on vegetables, fruit trees, flowers and other crops, such as late blight, downy mildew, epidemic disease and the like.

Description

Bactericidal composition containing picarbutrazox
Technical field
The present invention relates to a kind of bactericidal composition, especially a kind of bactericidal composition containing picarbutrazox and its The application of corps diseases is prevented and treated, belongs to disinfectant use in agriculture field.
Background technology
The late blight of potato (Potato Late Blight) is caused by phytophthora infestans, causes potato haulm dead and block The rotten a kind of crushing oomycetes disease of stem rot.Cardinal symptom：Blade is caught an illness first in blade tip or the leaf margin life green brown spot of water soaking mode, Have light green color haloing around scab, scab expands rapidly during high humidity, brown, and produce one to enclose white mould, i.e. sporangiophore and spore Ascus, it is especially the most obvious with blade back；Scab browning is dried up when drying, and matter is crisp easily to be split, and loses white mould, and expansion rate slows down.Stem Portion or petiole are caught an illness existing brown streak.The serious blade of morbidity wither it is vertical, crispatura, the black corruption of complete stool is caused eventually, full field is a piece of dried-up, distributes Go out corrupt smell.Stem tuber is caught an illness nascent brown or puce bulk scab, and slightly concave to fall into, the sick subcutaneous potato meat in portion is also brown, slowly Expand or rot to surrounding.
The late blight of potato in the rainy time, there was dampness in the air or it is warm it is foggy under the conditions of fall ill weight.Plantation susceptible variety, plants Strain is in the flowering phase again, as long as there is 22 DEG C or so of daytime, relative humidity continues more than 8 hours higher than 95%, and night 10~ 13 DEG C, there are the super-humid conditions that water droplet continues 11~14 hours on leaf, this disease can occur, and 10~14 days diseases spread entirely after morbidity Field or cause is very popular.
All over the world, there are generation, the popular year general underproduction 30% in potato producing region to the late blight of potato.19th century 40 Age Irish potato dies of hunger more than 100 ten thousand people, 2,000,000 people's resettlements because of late blight Large Scale Death, underproduction half.
Cucumber downy mildew, is commonly called as " horse race is dry ", " dry leaves ", and seedling stage strain all can be aggrieved, mainly cause harm blade and stem, volume Palpus and bennet are aggrieved less.Cucumber downy mildew cause of disease is Mastigomycotina Pseudoperonospora Cuba artificial downy mildew (Pseudoperonospora cubensis), the sporangium of the germ is propagated by air-flow and rainwater.Cucumber downy mildew is cucumber There is the most universal, disease of the most serious that cause harm in cultivation.The state of an illness oncoming force is violent, morbidity weight, propagates fast, such as prevents and treats not in time, will give Cucumber causes destructive loss.
In the preventing and treating of the late blight of potato and cucumber downy mildew, metalaxyl, dimethomorph and some protections are relied primarily on Property medicament.These medicaments are because long-term use has generated the different degrees of resistance to the action of a drug, prevention effect reduction.Medicament is big simultaneously Amount endangers food security using increased residues of pesticides, has aggravated environmental pollution.
Picarbutrazox, is new oximino ether bactericide, molecular formula:C20H23N7O3, molecular weight 409.4.Medicament master It is effective to oomycetes.The bactericide structure is special, with other bactericide no interactions resistances.
By picarbutrazox and the pesticide active ingredient combination application of other structures type, there is the combination of synergistic effect Thing can not only significantly improve actual preventive effect, reduce dosage and cost, additionally aid the generation that avoids germ resistance and delay Drug-fast generation speed, the problems such as the resistance and cost in current agricultural chemicals single dose application process can be solved.
The content of the invention
It is an object of the invention to provide a kind of resistance risk is small, low cost, good drug efficacy, lasting period Bactericidal composite long Thing.
Inventor is found surprisingly that picarbutrazox and fluorine pyrrole by substantial amounts of indoor biometricses and field control effectiveness test In certain proportion after mixture, the disease such as Phytophthora infestans, bacterium of downy mildew of cucumber has significant synergistic effect to bacterium amine.
The fluopicolide (fluopicolide), molecular formula C14H8Cl3F3N2O, chemical name 2, chloro- the N- [(3- of 6- bis- Chloro- 5- trifluoromethyls -2- pyridine radicals) methyl] benzamide, it is picolinamide series bactericidal agent, it is mainly used in preventing and treating Oomycete disease Evil such as downy mildew, epidemic disease.The medicine protectiveness is good, permeability strong, can be conducted from leaves of plants basal orientation blade tip direction, to Oomycete disease Evil has good prevention effect.
Inventor, by carrying out the quantitative analysis of synergy to composition, forms this on the basis of above-mentioned discovery The technical scheme of invention, i.e.,：A kind of bactericidal composition containing picarbutrazox, its active ingredient picarbutrazox with The mass ratio of fluopicolide is the ︰ 50 of 50 ︰ 1~1, and preferred mass ratio is the ︰ 30 of 30 ︰ 1~1, and more preferably mass ratio is the ︰ 15 of 15 ︰ 1~1. The gross mass percentage composition of active component is 5%~80% in composition.
The present composition can be prepared into any one formulation of suitable agricultural use, preferable agent with known method Type has suspending agent, wettable powder or water dispersible granules etc..These preparations can be prepared by general method, for example, by active matter Matter mixes with liquid flux and/or solid carrier, while adding surfactant such as emulsifying agent, dispersant, stabilizer, moistening Agent, can also add adhesive, defoamer, oxidant, dyestuff etc..
For suspending agent, usable dispersant such as polycarboxylate, lignosulfonates such as lignin sulfonic acid sodium salt, alkyl One or more in naphthalene sulfonate；Emulsifying agent such as Nongru-700 # (common name alkyl phenol formaldehyde resin polyoxyethylene ether), two fourths Base naphthalenesulfonic acid-formaldehyde condensate, agriculture breast 2201#, this disk -60# (common name sorbitol anhydride monostearate), agriculture breast 1601# One kind in (common name triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer), TERSPERSE 4894 (2500) or It is various；Wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products phosphate, tea seed cake powder, alkylphenol-polyethenoxy base ether phosphoric acid One or more in ester, phenethyl phenol polyoxyethylene groups ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate；Increase One or more in thick dose such as xanthans, polyvinyl alcohol, bentonite；In preservative such as formaldehyde, benzoic acid, Sodium Benzoate one Plant or various；Defoamer such as organic silicon defoamer；Antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as chlorine Change one or more in sodium.
For water dispersible granules, usable dispersant such as polycarboxylate, lignosulfonates, NNO4, alkyl naphthalene sulfonic acid One or more in salt；Wetting agent such as NPE, polyoxyethylene alcohol, alkyl sulfate, alkylsulfonate, naphthalene One or more in sulfonate；One or more in disintegrant such as ammonium sulfate, urea, sucrose, glucose；Binding agent such as diatom One or more in soil, cornstarch, PVA, carboxymethyl (ethyl) cellulose；Filler such as diatomite, calcium bicarbonate, kaolinite One or more in soil, white carbon, talcum powder, potter's clay.
For wettable powder, one in usable dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate Plant or various；One or more in wetting agent such as alkyl sulfate, alkylsulfonate, naphthalene sulfonate；Filler such as ammonium sulfate, urine One or more in element, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay.
The present composition can be provided in finished product preparation form, i.e., each material is blended in composition；Composition Composition can also be provided with unit dose preparation, be mixed in proportion in bucket (tank) using preceding.Concentrate of the invention is generally mixed with water Conjunction obtains the concentration of required active material.
Composition of the invention can be used to prevent and treat the important disease caused by sac fungus, oomycetes etc., be particularly suitable for preventing and treating Late blight, downy mildew.It is farmland, orchard etc. that composition of the invention applies place.
Composition of the invention can also have the compound particularly protectiveness of weeding, desinsection or bactericidal property with other Bactericide is used in mixed way, it is also possible to mix with nematicide, protective agent, growth regulator, nutrient for plants or soil conditioner Use.
Present invention additionally comprises a kind of method that fungi is killed at scene, before or after crop and/or fruit are susceptible, to work Apply composition of the invention in the place of thing and/or fruit and its growth or storage.Can be applied by common method, such as poured Note, injection, spraying, dusting, distribution.Amount of application of the invention changes with weather condition or crop condition.Protective effect continues Content of the time generally with single compound in composition is relevant, related to extraneous factor, such as weather, but by using appropriate Formulation can slow down the influence of weather.
Composition of the invention possesses advantages below：One is obvious composition synergistic effect, and drug effect is greatly improved；Two is group Compound drug effect is improved, and field rate declines, and reduces production and use cost, reduces residues of pesticides and environmental pollution；Three is group Compound is made up of the active ingredient of different mechanism of action, and action site increases, and is conducive to overcoming and delaying the drug-fast product of germ It is raw.
Specific embodiment
After different pesticide active ingredient mixing, three kinds of type of action are typically exhibited：Summation action, synergistic effect and short of money Anti- effect.But which kind of effect be specially, it is impossible to predict, only just be can know that by lot of experiments.Compound synergic is formulated well, Due to significantly improving actual prevention effect, the usage amount of agricultural chemicals is reduced, so as to greatly delay the drug-fast product of germ Raw speed, is the important means of scientific prevention and cure disease.
Inventor has carried out the experiment of substantial amounts of indoor bioassay and field control effectiveness test, find picarbutrazox with Fluopicolide combination Phytophthora infestans and bacterium of downy mildew of cucumber etc. have significant synergistic function, and are not only Two kinds of simple additions of medicament (referring to biologicall test example 1).
Assays Example 1：Picarbutrazox compounds Phytophthora infestans with fluopicolide The Toxicity Determination experiment of (Phytophthora infestans)
Experiment uses mycelial growth rate method.The experiment liquid that 5ml prepares is taken to be added to equipped with the hot culture medium (ryes of 45ml Culture medium, 45-50 DEG C) conical flask in, after shaking up, diameter 90mm glass culture dish is poured into rapidly, each culture dish pours into band Medicine culture medium 12ml, each treatment 4 repetitions, horizontal rest, after cooling flat board.With diameter 5mm card punch from culture 5d Cut bacteria cake for examination bacterium edge, the one side with mycelia is connected on the malicious culture medium of band with pin is chosen, all operations are ultra-clean Workbench carries out sterile working.Flat board is placed on culture in 25 DEG C of constant temperature sterile culture case after treatment, is handed over using cross after 10d Fork method measures the colony diameter of each treatment respectively, calculates the average net growth of the average value, colony diameter of each treatment colony diameter Amount and mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter -5
Mycelial growth inhibition rate (%)=[(control group net growth-treatment group net growth)/control group net growth] ×100
Mycelial growth inhibition rate is converted into niqueMin (y), liquor strength (μ g/ml) is converted into logarithm value (x), with minimum Square law calculates concentration EC in virulence equation and suppression50, the toxicity index and co-toxicity coefficient of medicament are calculated according to the abundant methods of Sun Yun (CTC)。
Actual measurement toxicity index (ATI)=(standard agent EC50/ reagent agent EC50)×100
Percentage composition+B the medicament toxicity index of A in theoretical toxicity index (TTI)=A medicament toxicity index × mixture × mixed The percentage composition of B in agent
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100.
CTC≤80 are antagonism, and 80 ＜ CTC ＜ 120 are summation action, and CTC >=120 are synergistic effect.
As can be known from Table 1, picarbutrazox is compounded with fluopicolide, is 50 in proportioning:1~1:When between 50, altogether All more than 120, Phytophthora infestans has synergistic effect to malicious coefficient, especially 30:1~1:When between 30, poison is altogether Number is all more than 170.
The picarbutrazox of table 1 compounds the isolated test result of Phytophthora infestans with fluopicolide
Assays Example 2：Picarbutrazox is compounded to bacterium of downy mildew of cucumber with fluopicolide The Toxicity Determination experiment of (Pseudoperonospora cubensis)
This experiment uses pot-culture method.The consistent two panels leaf period cucumber seedling of growing way is chosen, each treatment is from 5 basins for examination melon Seedling, numbers standby.Sprayed under 50PSI pressure with Potter spray towers, per basin 5mL.Each medicament sets 5 concentration gradients, It is blank with spray equivalent clear water.Spray inoculation bacterium of downy mildew of cucumber sporangia suspension, spore after chemicals treatment 24h The configuration process of capsule suspension is as follows：The cucumber leaves with Pseudoperonospora cubensis for picking up from field are taken, 10 DEG C or so are dipped with writing brush Distillation washing lower back face sporangium, it is 3 × 10 to be made into concentration5The sporangia suspension of individual/mL.Cucumber seedling is put after inoculation (relative humidity 100%, 15-20 DEG C of temperature) culture, 15-24 DEG C of keeping temperature, relative humidity after 24h in growth cabinet 90% or so moisturizing induces, and is investigated after 10d and records incidence, calculates disease index and prevention effect.
Cucumber downy mildew grade scale:
0 grade：Blade disease-free spot；
1 grade：Lesion area accounts for less than the 5% of whole blade area；
3 grades：Lesion area accounts for the 6-10% of whole blade area；
5 grades：Lesion area accounts for the 11-25% of whole blade area；
7 grades：Lesion area accounts for the 26-50% of whole blade area；
9 grades：Lesion area accounts for more than the 50% of whole blade area.
Concentration EC in suppressing is calculated with least square method50, then calculate co-toxicity coefficient (CTC) according to the abundant methods of Sun Yun.
Actual measurement toxicity index (ATI)=(standard agent EC50/ reagent agent EC50)×100
Percentage composition+B the medicament toxicity index of A in theoretical toxicity index (TTI)=A medicament toxicity index × mixture × mixed The percentage composition of B in agent
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100.
CTC≤80 are antagonism, and 80 ＜ CTC ＜ 120 are summation action, and CTC >=120 are synergistic effect.
As can be known from Table 2, picarbutrazox is compounded with fluopicolide, is 50 in proportioning:1~1:When between 50, altogether Malicious coefficient has synergistic effect to bacterium of downy mildew of cucumber, especially 30 all more than 120:1~1:When between 30, co-toxicity coefficient All more than 170.
The picarbutrazox of table 2 compounds the live test result (interior) to bacterium of downy mildew of cucumber with fluopicolide
The present invention is further illustrated with specific embodiment below, but the present invention is limited to absolutely not these examples.It is as described below only It is preferably embodiment of the invention, is only used to explain the present invention, therefore can not be interpreted as to the scope of the claims of the present invention Limitation.It should be pointed out that all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., Should be included within the scope of the present invention.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Percentage composition is mass percent in all formulations proportioning.
Suspending agents
By formula rate, by each components such as active component, dispersant, wetting agent, thickener, antifreeze and water by formula Ratio is well mixed, and suspending agent is made after ground or high speed shear.
Embodiment 1：31%picarbutrazox fluopicolide suspending agents
Picarbutrazox 30%, fluopicolide 1%, methyl naphthalene sulfonate formaldehyde condensate (dispersant) 10%, ten Sodium dialkyl sulfate (wetting agent) 3%, xanthans (thickener) 2%, bentonite (thickener) 1%, glycerine (antifreeze) 5%, Water complements to 100%.
Embodiment 2：31%picarbutrazox fluopicolide suspending agents
Picarbutrazox1%, fluopicolide 30%, polycarboxylate (dispersant) 10%, tea seed cake powder (wetting agent) 3%, Polyvinyl alcohol (thickener) 2%, bentonite (thickener) 1%, ethylene glycol (antifreeze) 5%, water complements to 100%.
Embodiment 3:5%picarbutrazox fluopicolide suspending agents
Picarbutrazox2.5%, fluopicolide 2.5%, methyl naphthalene sulfonate formaldehyde condensate (dispersant) 10%, Lauryl sodium sulfate (wetting agent) 3%, xanthans (thickener) 2%, bentonite (thickener) 1%, urea (antifreeze) 5%, water complements to 100%.
Embodiment 4：16%picarbutrazox fluopicolide suspending agents
Picarbutrazox15%, fluopicolide 1%, polycarboxylate (dispersant) 10%, tea seed cake powder (wetting agent) 3%, Polyvinyl alcohol (thickener) 2%, bentonite (thickener) 1%, propane diols (antifreeze) 5%, water complements to 100%.
Wettable powder example
Pesticide activity component, auxiliary agent, filler are mixed in proportion prepared wettable powder is remixed after air-flow crushing.It is main Want equipment：Mixer, airslide disintegrating mill.
Embodiment 5：80%picarbutrazox fluopicolide wettable powders
Picarbutrazox50%, fluopicolide 30%, lauryl sodium sulfate (wetting agent) 2%, sodium lignin sulfonate (dispersant) 3%, White Carbon black 10% (filler), kaolin complements to 100%.
Embodiment 6：51%picarbutrazox fluopicolide wettable powders
Picarbutrazox50%, fluopicolide 1%, alkyl sulfate (wetting agent) 3%, polycarboxylate (dispersant) 3%, White Carbon black (filler) 11%, bentonite complements to 100%.
Embodiment 7：16%picarbutrazox fluopicolide wettable powders
Picarbutrazox1%, fluopicolide 15%, alkylsulfonate (wetting agent) 3%, sodium lignin sulfonate (dispersion Agent) 3%, White Carbon black (filler) 11%, potter's clay complements to 100%.
Water dispersible granules example
By formula rate, active compound and powder carrier, moistening spreader-sticker and binding agent etc. are carried out into co-grinding, add water and pinch After conjunction, addition is granulated in the comminutor equipped with certain specification screen cloth.Then obtained final product (by screen cloth scope) through drying, screening again Granular product.
Embodiment 8：51%picarbutrazox fluopicolide water dispersible granules
Picarbutrazox1%, fluopicolide 50%, polycarboxylate (dispersant) 5%, sodium lignin sulfonate (dispersion Agent) 7%, lauryl sodium sulfate (wetting agent) 2%, ammonium sulfate (disintegrant) 5%, precipitated calcium carbonate complements to 100%.
Embodiment 9：40%picarbutrazox fluopicolide water dispersible granules
Picarbutrazox20%, fluopicolide 20%, Negel (dispersant) 5%, sodium lignin sulfonate (dispersant) 7%, lauryl sodium sulfate (wetting agent) 2%, urea (disintegrant) 5%, precipitated calcium carbonate complements to 100%.
Field information example 1：Picarbutrazox compounds the field control effectiveness test to the late blight of potato with fluopicolide
Test site body in Zhangjiakou Area, Hebei Province.The late blight of potato is chosen to fall ill throughout the year heavier plot.Test medicine and consumption 3 are shown in Table, 4 cells are often processed and is repeated, 20 square metres of each plot area.First time dispenser is carried out in disease early period of origination, entirely Strain even spraying, is sprayed onto untill blade drips, and blank is processed as with clear water.Second medicine is applied after 7 days.Before first time medicine With 7 days incidences of the investigation late blight of potato after second medicine.Per cell using 5 points of samplings, every is investigated 5 plants, every plant All blades are investigated, accounts for the percentage of whole leaf area with lesion area to be classified record.Calculate each treatment disease index and prevent Control effect.
Grade scale：
0 grade：Disease-free spot；
1 grade：Lesion area accounts for less than the 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 the 50% of whole leaf area.
Drug effect computational methods：
As can be seen from Table 3：Each single dose of picarbutrazox, fluopicolide is respectively to the preventive effect of the late blight of potato 79.3% and 73.1%, and embodiment of the present invention bactericidal composition is significantly increased in preventive effect, minimum preventive effect is 88.4%, it has been up to 94.1%.The result of field test fully shows, after picarbutrazox is compounded with fluopicolide There is significant synergistic function to the late blight of potato, in the case where effective ingredient consumption is reduced, prevention effect is significantly Improve.Therefore, the beneficial effect that the present composition has reduces cost, delaying drug resistance, reduces spraying times and residues of pesticides.
The picarbutrazox of table 3 compounds the field test results to the late blight of potato with fluopicolide
Field information example 2：Picarbutrazox is compounded to cucumber downy mildew field control effectiveness test with fluopicolide
Test method and investigation method are with Field information example 1
Test site Zhaoqing Guangdong.
As can be seen from Table 4：Each single dose of picarbutrazox, fluopicolide is respectively to the preventive effect of cucumber downy mildew 78.4% and 72.7%, and embodiment of the present invention bactericidal composition is significantly increased in preventive effect, minimum preventive effect is 89.9%, It has been up to 94.9%.The result of field test fully shows, to cucumber cream after picarbutrazox and fluopicolide compounding Mildew has significant synergistic function, and in the case where effective ingredient consumption is reduced, prevention effect is greatly improved.Therefore, The beneficial effect that the present composition has reduces cost, delaying drug resistance, reduces spraying times and residues of pesticides.
The picarbutrazox of table 4 compounds the field test results to cucumber downy mildew with fluopicolide

Claims (6)

1. a kind of bactericidal composition containing picarbutrazox, it is characterised in that：Contain active ingredient picarbutrazox And fluopicolide, both mass ratioes are the ︰ 50 of 50 ︰ 1~1.
2. bactericidal composition according to claim 1, it is characterised in that：Active ingredient picarbutrazox and fluorine pyrrole bacterium The mass ratio of amine is the ︰ 30 of 30 ︰ 1~1.
3. bactericidal composition according to claim 2, it is characterised in that：Active ingredient picarbutrazox and fluorine pyrrole bacterium The mass ratio of amine is the ︰ 15 of 15 ︰ 1~1.
4. the bactericidal composition according to claim any one of 1-3, it is characterised in that：The accumulation of active ingredient in composition Weight/mass percentage composition is 5%~80%.
5. bactericidal composition according to claim 4, it is characterised in that：Said composition can prepare any formulation, preferably Formulation have suspending agent, wettable powder or water dispersible granules.
6. bactericidal composition described in claim 1 is used to prevent and treat the purposes of the late blight of potato and cucumber downy mildew.
CN201611177884.3A 2016-12-20 2016-12-20 Picarbutrazox-containing bactericidal composition Pending CN106689161A (en)

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CN107372532A (en) * 2017-08-11 2017-11-24 北京科发伟业农药技术中心 The bactericidal composition of the urethane of pyrrole containing tetrazolium
CN108925570A (en) * 2017-05-27 2018-12-04 燕化永乐（乐亭）生物科技有限公司 A kind of composite bactericide

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