CN107549178A - Pesticidal combination and its preparation method and application - Google Patents
Pesticidal combination and its preparation method and application Download PDFInfo
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- CN107549178A CN107549178A CN201710698941.0A CN201710698941A CN107549178A CN 107549178 A CN107549178 A CN 107549178A CN 201710698941 A CN201710698941 A CN 201710698941A CN 107549178 A CN107549178 A CN 107549178A
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- mibemycin
- insect amide
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- pesticidal combination
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Abstract
The invention discloses a kind of Pesticidal combination and its preparation method and application.The present invention discloses a kind of Pesticidal combination first, is made up of bromine cyanogen insect amide and mibemycin.The present invention further discloses a kind of method for preparing the Pesticidal combination, including：Bromine cyanogen insect amide and mibemycin are mixed in proportion, produced.The invention also discloses acceptable auxiliary material or carrier on a kind of pesticidal preparations, including the Pesticidal combination of the upper effective dose of preventing and treating and Pesticide Science.The formulation of pesticidal preparations of the present invention can be microemulsion, aqueous emulsion, suspending agent or wettable powder etc..Pesticidal combination of the present invention, using bromine cyanogen insect amide and mibemycin as active component, both have obvious synergistic function at compounding, the prevention effect of thrips is significantly improved, and can prevent thrips from developing immunity to drugs, and extend the lasting period of medicament, it is good to crop safety.Pesticidal combination of the present invention has application prospect in thrips is prevented and treated.
Description
Technical field
The present invention relates to a kind of Pesticidal combination, more particularly to a kind of desinsection group containing mibemycin and bromine cyanogen insect amide
Compound, the invention further relates to the preparation method of the Pesticidal combination and its application in thrips is prevented and treated, belong to insecticide
Field.
Background technology
Caused by long-term use of chemical pesticide the problems such as the insect evil mite resistance to the action of a drug, Practice for Pesticide Residue in Agricultural Products, environmental pollution,
And concern of the people to own health and food-safety problem forces people to look for the new method of pest control evil mite.With
People go deep into ecology and environmental protection understanding, and traditional control of insect direction gradually is changed into control by all eliminations is endangering
Under evil economic threshold, the research and development of agricultural chemicals is also less toxic, efficient by traditional chemical pesticide steering, and insect evil mite is not easy
Develop immunity to drugs, person poultry safety and environmentally friendly public nuisance-free agricultural chemicals direction are developed.
Mibemycin is a series of very similar in structure ten hexa-atomic as caused by some bacterial strains in streptomyces
Ring macrolide antibiotics, there is strong desinsection, mite killing, expelling parasite and the biological activity such as antitumor, as a kind of new
Biological pesticide, wide spectrum, efficient, low toxicity, and AVM are described as active highest insecticide together.
Bromine cyanogen insect amide is a kind of new o-amino benzoyl phthalein amine insecticide.It has efficient, low toxicity, mechanism of action new
The features such as clever, safe, to existing insecticide no interactions resistance to non-target organism.The medicine is shown to mammal and insect fish
The extremely significant selective difference of Buddhist nun's fourth acceptor, substantially increases the peace to mammal, other vertebrates and other natural enemies
Quan Xing, especially there is excellent preventive effect to sucking pest, have broad application prospects, cause the extensive pass of people
Note.
Preventing and treating pest and disease damage is easiest to generate the problem that drug-fast generation.Compounded with the composition of different cultivars, be
Common and effective method caused by the resistance to the action of a drug is prevented, can effectively delay the drug-fast generation of pest and disease damage, be advantageous to protecting ecology
Environment.Therefore, develop, promote the use of complex preparation that is efficient, environmentally friendly, having synergistic effect, help to prevent and overcome pest and disease damage
Develop immunity to drugs, contribute to environmental protection.
The content of the invention
First technical problem to be solved by this invention is to provide a kind of Pesticidal combination, and the Pesticidal combination is with bromine cyanogen
Insect amide and mibemycin are active component, and both have obvious synergistic function at compounding, to the prevention effect of thrips
Significantly improve；
Second technical problem to be solved by this invention is to provide a kind of preparation method of the Pesticidal combination；
3rd technical problem to be solved by this invention is to provide application of the Pesticidal combination in thrips is prevented and treated.
In order to solve the above technical problems, the technical solution used in the present invention is：
The present invention discloses a kind of Pesticidal combination first, is made up of bromine cyanogen insect amide and mibemycin.In mass ratio
Meter, bromine cyanogen insect amide：Mibemycin=1-49：1-49；Preferably, bromine cyanogen insect amide：Mibemycin=1-19：1-49.
It is further preferred that count in mass ratio, bromine cyanogen insect amide：Mibemycin=1-9：1-49；It is furthermore preferred that bromine cyanogen
Insect amide：Mibemycin=1-9：1-19.Most preferably, count in mass ratio, bromine cyanogen insect amide：Mibemycin=1：9.
The present invention has found that mibemycin and bromine cyanogen insect amide mixture have to thrips by a large amount of formula indoor screening tests
There is synergistic function.Active component bromine cyanogen insect amide and the compound proportion the selection result of mibemycin show, bromine cyanogen worm acyl
Amine is with mibemycin according to 1-49：After 1-49 different quality ratio compounding, each group built agent is respectively provided with well to thrips
Prevent and kill off activity, 24h LC after each proportioning medicine50Between 0.0530-0.1420；Wherein, by bromine cyanogen insect amide：Mibemycin
For 9：1-1：49 mass ratio compounding, is respectively provided with significant synergistic effect, there is preferable virulence to thrips；Especially press bromine cyanogen worm acyl
Amine：Mibemycin is 1：9 quality reaches 234.77 than built reactive highest, co-toxicity coefficient.
The present invention further discloses a kind of method for preparing the Pesticidal combination, including：By bromine cyanogen insect amide and rice
You are well mixed shellfish mycin according to the ratio, produce.
The invention also discloses a kind of pesticidal preparations, including：In preventing and treating the Pesticidal combination of the present invention of effective dose and
Acceptable auxiliary material or carrier in Pesticide Science.
Further, in the pesticidal preparations, the weight/mass percentage composition of the Pesticidal combination is 2%-50%, and surplus is
Auxiliary material or carrier；Preferably, the weight/mass percentage composition of the Pesticidal combination is 10%-50%, and surplus is auxiliary material or carrier；More
Preferably, the weight/mass percentage composition of the Pesticidal combination is 30%-50%, and surplus is auxiliary material or carrier.Further, institute
State in pesticidal preparations, the weight/mass percentage composition of effective ingredient bromine cyanogen insect amide is 1%-49%, effective ingredient mibemycin
Weight/mass percentage composition is 1%-49%；It is furthermore preferred that the weight/mass percentage composition of bromine cyanogen insect amide is 1%-9%, mibemycin
Weight/mass percentage composition be 1%-49%.
Auxiliary material or carrier of the present invention, such as emulsifying agent, antifreeze, preservative, defoamer, wetting agent, dispersant, increasing
Thick dose etc. is component conventional in agricultural chemicals.
The formulation of pesticidal preparations of the present invention includes：Microemulsion, aqueous emulsion, suspending agent, wettable powder or moisture dissipate
Granula.The preparation method of the above-mentioned formulations of pesticide is well known to those skilled in the art.
The invention also discloses the application of described Pesticidal combination or pesticidal preparations in thrips is prevented and treated.It is of the present invention
Thrips include all insects of Insecta Thysanoptera (Thysanoptera), including but not limited to Thripidae and Phlaeothripidae elder brother
Worm, such as the melon thrips of occurring and damage, onion thrips etc., also rice thripses, Frankliniella occidentalis etc. in melon fruits and vegetables.
Field control effectiveness test result shows that bromine cyanogen insect amide and mibemycin are in 1-9：The compounding of 1-49 different ratio
Preparation has favorable effect under experimental concentration to capsicum thrips, and preventive effect is superior to 3% mibemycin microemulsion and 10%
Prevention effect of the bromine cyanogen insect amide suspending agent to capsicum thrips.Wherein, 30% bromine cyanogen insect amide mibemycin formulation (presses matter
Amount is than meter, bromine cyanogen insect amide：Mibemycin=1：9) 20 milliliters/mu are optimal to the preventive effect of capsicum thrips, 1 day after medicine, 3 days, 7
Its preventive effect respectively reaches 91.62%, 99.29% and 98.04%.In addition, the bromine cyanogen insect amide and mibemycin of different ratio
Complex preparation under experimental concentration to capsicum safety, the lasting period was up to more than 7 days.
Therefore, the phase occurs in thrips in production, the present invention recommends 30% bromine cyanogen insect amide mibemycin formulation
(count in mass ratio, bromine cyanogen insect amide：Mibemycin=1：9) 15-20 milliliters/mu preventing and treating, using spray method to capsicum etc.
Crops leave dual sides even spraying is once.As met rain in after dispenser 6 hours, waiting should fill spray once after becoming a fine day.
Technical solution of the present invention compared with prior art, has the advantages that：
The present invention compounds by using bromine cyanogen insect amide and mibemycin two kinds of active components, generates significant collaboration
Synergistic effect, the prevention effect to thrips is improved, and extend the medicament lasting period, it is low to reduce drug cost.With unitary system
Agent is compared, and the insecticidal effect of Pesticidal combination of the present invention significantly improves, while can be prevented and be overcome thrips to produce anti-medicine
Property, extend the service life of pesticide species, and it is pollution-free to crop, and security is good, meets the security requirement of pesticidal preparations.
Embodiment
The invention will now be further described with reference to specific embodiments, advantages of the present invention and feature will be with description and
It is apparent.It should be understood that the embodiment is only exemplary, any restrictions are not formed to the scope of the present invention.This area
Technical staff should be understood that without departing from the spirit and scope of the invention can to the details of technical solution of the present invention and
Form is modified or replaced, but these modifications or substitutions each fall within protection scope of the present invention.
The mibemycin bromine cyanogen insect amide microemulsion (mibemycin of embodiment 1 10%:Bromine cyanogen insect amide is 9:1)
Active compound is weighed by above-mentioned recipe requirements (% is mass percent), solvent, emulsifying agent, being allowed to dissolving turns into
Uniform oil phase, is slowly added into deionized water under agitation, forms WO emulsion, then it is agitated be allowed to rapid phase inversion into
Oil-in-water type, it is cooled to room temperature and makes up to balance, it is filtered that microemulsion product is made.
The mibemycin bromine cyanogen insect amide microemulsion (mibemycin of embodiment 2 20%:Bromine cyanogen insect amide is 19:1)
Active compound is weighed by above-mentioned recipe requirements (% is mass percent), solvent, emulsifying agent, being allowed to dissolving turns into
Uniform oil phase, is slowly added into deionized water under agitation, forms WO emulsion, then it is agitated be allowed to rapid phase inversion into
Oil-in-water type, it is cooled to room temperature and makes up to balance, it is filtered that microemulsion product is made.
The mibemycin bromine cyanogen insect amide aqueous emulsion (mibemycin of embodiment 3 10%:Bromine cyanogen insect amide is 9:1)
Active compound, solvent, emulsifying agent are weighed by above-mentioned recipe requirements (% is mass percent), is dissolved into uniform oil
Phase；Deionized water, antifreeze, preservative, defoamer are mixed into homogeneous aqueous phase, under high speed shear, aqueous phase added
Oil phase, that is, aqueous emulsion product is made.
The mibemycin bromine cyanogen insect amide aqueous emulsion (mibemycin of embodiment 4 20%:Bromine cyanogen insect amide is 19:1)
Active compound, solvent, emulsifying agent are weighed by above-mentioned recipe requirements (% is mass percent), is dissolved into uniform oil
Phase；Deionized water, antifreeze, preservative, defoamer are mixed into homogeneous aqueous phase, under high speed shear, aqueous phase added
Oil phase, that is, aqueous emulsion product is made.
The mibemycin bromine cyanogen insect amide suspending agent (mibemycin of embodiment 5 10%:Bromine cyanogen insect amide is 9:1)
Active compound, wetting agent, dispersant, antifreeze, anti-is weighed by above-mentioned recipe requirements (% is mass percent)
Rotten agent and part thickener, defoamer and water etc. are well mixed, grinding, when particle diameter is at 5 μm, stop grinding, add remaining increase
It is obtained suspending agent product that thick dose uniformly rear with defoamer regulation.
The mibemycin bromine cyanogen insect amide suspending agent (mibemycin of embodiment 6 20%:Bromine cyanogen insect amide is 19:1)
Active compound, wetting agent, dispersant, antifreeze, anti-is weighed by above-mentioned recipe requirements (% is mass percent)
Rotten agent and part thickener, defoamer and water etc. are well mixed, grinding, when particle diameter is at 5 μm, stop grinding, add remaining increase
It is obtained suspending agent product that thick dose uniformly rear with defoamer regulation.
The mibemycin bromine cyanogen insect amide wettable powder (mibemycin of embodiment 7 10%:Bromine cyanogen insect amide is
9:1)
It is fully mixed that active compound, various auxiliary agents and filler etc. are weighed by above-mentioned recipe requirements (% is mass percent)
Close, after ultra-fine pulverizer disintegrating, be well mixed and wettable powder product is made.
The mibemycin bromine cyanogen insect amide wettable powder (mibemycin of embodiment 8 10%:Bromine cyanogen insect amide is
1:1)
It is fully mixed that active compound, various auxiliary agents and filler etc. are weighed by above-mentioned recipe requirements (% is mass percent)
Close, after ultra-fine pulverizer disintegrating, be well mixed and wettable powder product is made.
The mibemycin bromine cyanogen insect amide wettable powder (mibemycin of embodiment 9 10%:Bromine cyanogen insect amide is
1:9)
It is fully mixed that active compound, various auxiliary agents and filler etc. are weighed by above-mentioned recipe requirements (% is mass percent)
Close, after ultra-fine pulverizer disintegrating, be well mixed and wettable powder product is made.
The mibemycin bromine cyanogen insect amide wettable powder (mibemycin of embodiment 10 20%:Bromine cyanogen insect amide is
19:1)
It is fully mixed that active compound, various auxiliary agents and filler etc. are weighed by above-mentioned recipe requirements (% is mass percent)
Close, after ultra-fine pulverizer disintegrating, be well mixed and wettable powder product is made.
The mibemycin bromine cyanogen insect amide wettable powder (mibemycin of embodiment 11 50%:Bromine cyanogen insect amide is
49:1)
It is fully mixed that active compound, various auxiliary agents and filler etc. are weighed by above-mentioned recipe requirements (% is mass percent)
Close, after ultra-fine pulverizer disintegrating, be well mixed and wettable powder product is made.
The mibemycin bromine cyanogen insect amide water dispersible granules (mibemycin of embodiment 12 10%:Bromine cyanogen insect amide is
9:1)
By above-mentioned recipe requirements (% is mass percent), active compound and wetting agent, dispersant, filler etc. are carried out
Co-grinding, after adding water kneading, add in comminutor and be granulated, water dispersible granules are then made through drying, screening again
Product.
The mibemycin bromine cyanogen insect amide water dispersible granules (mibemycin of embodiment 13 10%:Bromine cyanogen insect amide is
1:1)
By above-mentioned recipe requirements (% is mass percent), active compound and wetting agent, dispersant, filler etc. are carried out
Co-grinding, after adding water kneading, add in comminutor and be granulated, water dispersible granules are then made through drying, screening again
Product.
The mibemycin bromine cyanogen insect amide water dispersible granules (mibemycin of embodiment 14 20%:Bromine cyanogen insect amide is
19:1)
By above-mentioned recipe requirements (% is mass percent), active compound and wetting agent, dispersant, filler etc. are carried out
Co-grinding, after adding water kneading, add in comminutor and be granulated, water dispersible granules are then made through drying, screening again
Product.
The mibemycin bromine cyanogen insect amide water dispersible granules (mibemycin of embodiment 15 50%:Bromine cyanogen insect amide is
49:1)
By above-mentioned recipe requirements (% is mass percent), active compound and wetting agent, dispersant, filler etc. are carried out
Co-grinding, after adding water kneading, add in comminutor and be granulated, water dispersible granules are then made through drying, screening again
Product.
The mibemycin of experimental example 1 and the formula indoor screening test of bromine cyanogen insect amide compounding preventing and treating thrips
Subjects：Thrips
Reagent agent：91% mibemycin active compound (Zhejiang Hisun Chemical Co., Ltd)
94% bromine cyanogen insect amide active compound (Zhejiang Hisun Chemical Co., Ltd)
The test medicine that active compound is configured to need, design bromine cyanogen insect amide：Mibemycin is respectively 49:1、19:1、
9:1、1:1、1:9、1:19 and 1:49 (mass ratioes) totally 7 combinations.Single dose and Mixed Pharmacy are set into 7 various concentrations gradients
(0.01、0.04、0.1、0.4、1、4、10mg/L)。
Test method standard refers to：Rower, the part insecticidal activity of farm-chemical indoor determination test rule insecticide the 14th
Test leaf dipping method (NY/T 1154.14-2008).
Concrete operations are as follows：
Collection carries the blade of thrips nymph and without nymph, clean blade of the same size, Ran Hougen from experimental plot
Various medicaments are diluted to 5 concentration gradients according to the result of trial test, clean blade is respectively put into 5 concentration gradients and soaked
10s, it is put into culture dish and dries, the blade for soaking decoction is then connected to writing brush picking 2 age nymph of uniform size 20
On, petiole is incubated with cotton, is put into can, is sealed with preservative film, and is pricked hole on preservative film and kept ventilation.Often processing is set
Put and be repeated 3 times, and set without medicament but the processing that contains corresponding organic solvent is as control.Processing is placed under room temperature condition,
Indoor temperature is at 25 ± 3 DEG C.Investigation result after 24h, death standard are to touch polypide with writing brush point, and polypide is stiff, finally
Calculate the death rate, corrected mortality and relative virus force index.
The average mortality of 3 repetitions is converted into niqueMin, drug concentration is converted into logarithm value, then by Chinese agriculture row
Industry standard NY/T 1154.7-2006《The part of farm-chemical indoor determination test rule insecticide the 7th：The synergy of mixture is surveyed
It is fixed》Method calculate regression equation, coefficient correlation, co-toxicity coefficient etc..
ATI：Mixture surveys toxicity index；
S：The LC of standard pesticide agent50；
M：The LC50 of mixture；
TTI：Mixture theoretical toxicity index；
TIA：A medicament toxicity index；
PA：Percentage composition of the A medicaments in mixture；
TIB：B medicament toxicity index；
PB：Percentage composition of the B medicaments in mixture；
CTC：Co-toxicity coefficient.
The co-toxicity coefficient (CTC) >=120 of complex preparation shows as synergistic effect；CTC≤80 show as antagonism；80 ＜
CTC ＜ 120 show as summation action.Test and result of calculation are as shown in table 1.
The toxicity test result of 1 each single dose of table and its mixture to thrips
Toxicity Determination result shows：After bromine cyanogen insect amide and mibemycin compounding, each group built agent to thrips still
With preventing and kill off activity well.24h LC after 7 proportioning medicines50Between 0.0530-0.1420, mibemycin and bromine cyanogen worm
Acid amides matches (bromine cyanogen insect amide：Mibemycin) it is 9:1-1:49 it is mixed have preferable virulence to thrips, have significant increasing
Effect acts on, wherein bromine cyanogen insect amide：The proportioning of mibemycin is 1:9 active highest, co-toxicity coefficient reach 234.77, synergy
Effect is maximum.
The mibemycin of experimental example 2 and the field control effectiveness test of bromine cyanogen insect amide compounding preventing and treating thrips
Test objective：Understand different ratio bromine cyanogen insect amide and mibemycin complex preparation to the Field information of thrips
Effect, determine optimum quantum of utilization and application method.
Subjects：Thrips；
For studying thing：Capsicum；
Environmental condition：Test site is located at Hainan Province Le Dongxian Jiu Suo towns, and experimental field soil property is red soil, and physical features is flat,
Middle fertility.
Reagent agent experimental design is shown in Table 2.
The reagent agent experimental design of table 2
Note：The dosages distribution is bromine cyanogen insect amide：Mibemycin (mass ratio).
Plot area：Per 20 square metres of plot area；Number of repetition：3 repetitions.
Application method：Using spray method to Pepper Leaves positive and negative even spraying.Carried out during dispenser with mulch film as barrier
Isolation, to prevent float of mist droplet.Spraying equipment：Sharp agriculture HD-400 type sprayers.
Spraying time and number：3 morning of August, in thrips nymph full incidence period (if usually average per 15-30 piece leaves
Borer population is not less than 300), by the spraying of design dose uniformity once.Every mu of 30 kilograms of water consumption, CK spray equivalent clear water.
Control time and number：Investigate insect population before dispenser, 1 day (August 4 days), 3 days (August 6 days), 7 days (Augusts after medicine
10 days) residual borer population living is investigated respectively, calculate Revision insect recluced rate and Rectifying efficacies.
Investigation method：In capsicum, top fixation selection 15-30 piece leaves, if investigation borer population living.
Drug effect computational methods：
Biological statistical method：Notable difference test uses " DMRT " method.
Crop is directly affected：Respectively handle and all show capsicum safety without poisoning.
The result of the test of bromine cyanogen insect amide and mibemycin complex preparation the preventing and treating thrips of different ratio is shown in Table 3.
The result of the test of bromine cyanogen insect amide and mibemycin complex preparation the preventing and treating thrips of the different ratio of table 3
Note：Lowercase letter indication difference significance degree is P=0.05, and capitalization represents that significant difference degree is P=
0.01。
Field control effectiveness test shows：The bromine cyanogen insect amide of different ratio and the complex preparation of mibemycin are in experimental concentration
Under have favorable effect, and better than milliliter/mu of 3% mibemycin microemulsion 40,10% bromine cyanogen insect amide to capsicum thrips
Prevention effect of milliliter/mu of suspending agent 40 to capsicum thrips；Wherein 30% bromine cyanogen insect amide mibemycin formulation (1:9)20
Milliliter/mu is optimal to capsicum thrips preventive effect, 1 day after medicine, 3 days, 7 days preventive effects be respectively 91.62%, 99.29%, 98.04%.
In addition, the bromine cyanogen insect amide of different ratio and the complex preparation of mibemycin are pacified under experimental concentration to capsicum
Entirely, the lasting period was up to more than 7 days.The phase occurs in thrips in production, it is recommended to use 30% bromine cyanogen insect amide mibemycin agent
Type (1:9) 15-20 milliliters/mu preventing and treating, using spray method to Pepper Leaves positive and negative even spraying once.6 hours after dispenser
Interior chance rain, waiting should fill spray once after becoming a fine day.
The present invention compounds by using bromine cyanogen insect amide and mibemycin two kinds of active components, generates obvious collaboration
Synergistic effect, compared with existing unitary agent, there is significant insecticidal effect, while also delayed the resistance of insect, to making
Thing is pollution-free, and security is good, meets the security requirement of pesticidal preparations.
Claims (10)
1. a kind of Pesticidal combination, it is characterised in that be made up of bromine cyanogen insect amide and mibemycin.
2. according to the Pesticidal combination described in claim 1, it is characterised in that：Count in mass ratio, bromine cyanogen insect amide：Mil shellfish is mould
Element=1-49：1-49；Preferably, bromine cyanogen insect amide：Mibemycin=1-19：1-49.
3. according to the Pesticidal combination described in claim 2, it is characterised in that：Count in mass ratio, bromine cyanogen insect amide：Mil shellfish is mould
Element=1-9：1-49；Preferably, bromine cyanogen insect amide：Mibemycin=1-9：1-19.
4. according to the Pesticidal combination described in claim 3, it is characterised in that：Count in mass ratio, bromine cyanogen insect amide：Mil shellfish is mould
Element=1：9.
A kind of 5. method for preparing Pesticidal combination described in Claims 1-4 any one, it is characterised in that including：By bromine cyanogen
Insect amide and mibemycin are well mixed according to the ratio, are produced.
A kind of 6. pesticidal preparations, it is characterised in that including：Killing described in the Claims 1-4 any one of effective dose in preventing and treating
Acceptable auxiliary material or carrier on worm composition and Pesticide Science.
7. according to the pesticidal preparations described in claim 6, it is characterised in that：In the pesticidal preparations, the Pesticidal combination
Weight/mass percentage composition is 2%-50%, and surplus is auxiliary material or carrier；Preferably, the weight/mass percentage composition of the Pesticidal combination is
10%-50%, surplus are auxiliary material or carrier.
8. according to the pesticidal preparations described in claim 6, it is characterised in that the formulation of the pesticidal preparations includes：Microemulsion, water
Emulsion, suspending agent, wettable powder or water dispersible granules.
9. application of the Pesticidal combination in thrips is prevented and treated described in Claims 1-4 any one.
10. application of the pesticidal preparations in thrips is prevented and treated described in claim 6 to 8 any one.
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| 刘翠翠等: "微生物农药米尔贝霉素特性", 《世界农药》 * |
| 崔江虎，徐汉虹: "天然产物在作物保护中的应用概述（下）", 《世界农药》 * |
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