CN109744031A - A kind of composition and application thereof for preventing and treating micro pest - Google Patents
A kind of composition and application thereof for preventing and treating micro pest Download PDFInfo
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- CN109744031A CN109744031A CN201711064308.2A CN201711064308A CN109744031A CN 109744031 A CN109744031 A CN 109744031A CN 201711064308 A CN201711064308 A CN 201711064308A CN 109744031 A CN109744031 A CN 109744031A
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Abstract
This application involves a kind of compositions and application thereof for preventing and treating micro pest, and it includes soluble starch, ultra-low surface tension surfactant and evaporation suppressors.The composition of the application passes through ultra-low surface tension surfactant, using soluble starch as viscosity component, pest is sticked by penetrating into inside pest appendage gap or penetrating into inside the plant gap that pest is hidden oneself, prevent it from escaping, to realize quick, efficient, environmental protection, the purpose of easy desinsection, and insecticidal spectrum is wide, has broad application prospects.
Description
Technical field
The application belongs to agricultural production, specifically, belonging to the field using mythimna separata mode pest control.
Background technique
In Agricultural Activities, pest and disease damage is an important factor for causing crop yield loss and quality to decline, especially micro-
Mini pest such as wood louse, aphid, plant hopper, leafhopper, aleyrodid, red spider etc., individual is small, and breeding coefficient is big, and generation overlap is serious,
Drug resistance generates fast.To effectively prevent these micro pests, ability must be administered using special drug and frequently in production
It effectively prevents.Though having the advantages that easily and fast, efficiently, frequently to apply similar drugs using chemical pesticide control pest and disease damage
Often accelerate the generation of pest resistance to insecticide, and there is pollution environment, generate the side effects such as pesticide residue, killing natural enemy.In production
Need safely, effectively to prevent and treat new method, the new technology of this kind of micro pest.
Chinese patent application CN99120025.X " low toxicity active colloidal plant protective agent " discloses a kind of using polyethylene
Alcohol, water-soluble silicate, surfactant and polyvinylpyrrolidone composition, to by suffocate and adherency desinsection.It should
Polyvinyl alcohol needs 70 DEG C of high temperature to be dissolved in composition, and water-soluble silicate has corrosivity and irritation, desinsection
It is also easy to produce phytotoxicity simultaneously.Because pest polypide has superpower hydrophobicity, and the viscosity of the composition is larger, and surface can be higher, spray
The dry time is very fast after mist, has little time to go deep into i.e. drying inside gap and pest appendage, be only capable of by the composition each other it
Between bonding interconnect fixed pest, can not effectively break through the critical surface tension of pest appendage body surface to by the foot of pest,
The appendages such as wing are adhered to each other, therefore efficiency is lower, and the composition influences photosynthesis in the presence of blade etc. to be adhered to each other
The shortcomings that, need safer and more effective technology and composition.
Chinese patent CN102090423 discloses a kind of natural high polymer polysaccharide insecticidal composition, by konjaku glucomannan,
Cactus juice, alkyl polyglycoside composition, for pest and the mythimna separata insect prevention of suffocating.The mythimna separata composition material cost that this method uses
Height, extension rate is small, and for the pest polypide of high hydrophobicity, can not effectively infiltrate polypide, and mythimna separata effect is to be improved,
Need that cost is lower, the better disinsection method of effect and composition.
Chinese patent CN201310607364 discloses a kind of full-service fluid plant-protecting film, by fulvic acid, rice bran wax,
The composition such as fatty acid mixed for fruit bagging and passes through the fixed preventing disease and pest that suffocates.This method is equally because mixture is much larger than
The wetting critical surface tension of pest polypide, insecticidal effect are to be improved.
Summary of the invention
Applicant has found during studying control of insect for a long period of time, passes through the control efficiency of spraying viscosity solution pest control
It is closely related with the surface-active of pest body surface.Especially micro pest is liked hiding at the gap of plant, presently disclosed medicine
Object surface tension all with higher, is not easy to penetrate into gap when spraying.And pest body surface has superpower hydrophobic work
Property, wetting critical surface tension is below about 25mN/m, the polypide of pest cannot be effectively contacted using water as the solution of medium, also difficult
To penetrate into plant gap, therefore the technology of the pest control of existing mythimna separata is similar with the Prevention Technique of contact killing type drug, prevents
Worm effect majority is unsatisfactory.
Pest surface usually has ultralow surface tension, especially microminiature pest, and polypide is not easy to be soaked in water, therefore
Natural precipitation and the dew in spring and autumn just will not pest death due to drowned.The appendages such as the foot and wing of pest are even more to have superelevation
Hydrophobicity, wetting critical contact angle are usually less than 25mN/m, and the liquid of aqueous medium is difficult to soak polypide, let alone enter pest
Appendage and the gaps such as wing inside.For the effect for improving mythimna separata desinsection, more viscous liquids is allowed to enter pest appendage gap
It is interior, play mythimna separata effect, it is necessary to which the surface tension (about 71.8mN/m) for greatly reducing the liquid of aqueous medium makes it far below evil
The wetting critical surface tension (about 25mN/m) of polypide table, could be by pest body surface complete wetting in liquid.Especially to be lower than
The wetting critical surface tension (about 21mN/m) of the appendages such as foot, wing could break through the superpower hydrophobic resistance of appendage, by viscous liquid
It is sent into appendage gap, being adhered appendage keeps it movable, causes pest dead.
The surface tension of water can only be reduced to 30mN/m or so by most surfactants, and only individual outstanding surfaces are living
Or mixtures thereof property agent such as fluorinated surfactant, organic silicon surfactant, could be reduced to pest body for the surface tension of water
The wetting critical surface tension (about 25mN/m) of table is below.And the wetting that the surface tension of water is reduced to pest body surface can be faced
Surfactant under boundary's surface tension (about 21mN/m), then need special formula.The surface of this ultra-low surface tension
Activating agent can be single water-soluble organic silicon type surfactant, carbon fluorine class surfactant, high molecular surfactant,
Or its modified product, or the mixture of inhomogeneity surfactant.It is under 25 DEG C, an atmospheric pressure, pure water
When making solvent, contact angle≤21mN/m of 0.1% strength solution.
Surfactant is added in water has dual character, on the one hand water can be allowed preferably to sprawl on blade face, or even evil
Worm polypide package, on the other hand can also reduce the water-holding capacity on blade face and polypide surface, i.e. reduction blade face and polypide surface moisture film
Thickness.Moisture can quickly evaporate in this way, and liquid has little time to dry to pest appendage internal penetration, and surfactant
Activity is higher, and moisture film is thinner, easier evaporation, and evaporation is faster, is less susceptible to adherency pest.
This dual character of surfactant is the method or composition effect for leading to the mythimna separata desinsection of current all announcements
The main reason for fruit is bad.Surfactant is not added, then because the hydrophobicity of polypide can not cover polypide, unlikely penetrates into polypide
Appendage sticks pest inside gap.Surfactant is added, although moisture can wrap up infiltration polypide, because moisture film is too thin,
Viscosity component is few, and moisture rapid evaporation, and mucus, which is not yet penetrated into inside polypide appendage, have been dried, cause mythimna separata ineffective or
Person is easy to be shaken off escape by pest, reduces control efficiency.
Applicant develops a kind of this contradictory solution of solution, i.e., in mythimna separata body by studying for a long period of time and testing
In system, water evaporation inhibitor is introduced.By introducing water evaporation inhibitor, solve after surfactant is added, polypide surface packet
The mucus wrapped up in not yet penetrate into pest appendage internal moisture i.e. rapid evaporation the shortcomings that, by extend polypide by mucus wrap up when
Between, increase the amount for penetrating into mucus inside pest appendage, prevents pest from shaking off.It remains again simultaneously and is added what surfactant generated
The ultra-low surface tension that pest body surface can be broken through makes mucus quickly wrap up infiltration polypide and mucus is sent into pest appendage gap
Inside prevents from escaping to stick pest strongerly.After the solution of the application composition is spraying, removing can be immediately
Viscous liquid is wrapped in pest body off-balancesheet, liquid drying time can also be extended by evaporation suppressor, there is viscous liquid
Time enough penetrates into pest appendage gap, penetrates into and fills there are also time enough in the plant gap that pest is hidden oneself, energy
It is enough preferably to improve insecticidal effect.
Applicant by further investigation, invented it is a kind of comprising soluble starch, ultra-low surface tension surfactant and
The composition of evaporation suppressor.It breaks through worm using soluble starch as viscosity component, by ultra-low surface tension surfactant
Body critical surface tension wraps up pest polypide, and breaks through the surface tension at plant gap, penetrates into gap, inhibits in evaporation
Moisture state is kept for a long time under agent effect, is promoted solution to penetrate into the depths between pest appendage with plant gap, is obtained good
Good microminiature pest controling effect.
The purpose of the application be to provide it is a kind of for preventing and treating the composition of micro pest, it includes soluble starch,
Ultra-low surface tension surfactant and evaporation suppressor.
Particularly, the content of the soluble starch, ultra-low surface tension surfactant and evaporation suppressor is with weight
Percentages can be with are as follows: ultra-low surface tension surfactant 2%-10%, evaporation suppressor 5%-15%, surplus are solubility
Starch.
Soluble starch in the application composition is for providing viscosity to fix pest.Those skilled in the art are known,
The aqueous solution of various types starch all has viscosity, therefore water-soluble starch is used equally for the application.Particularly, described can
Soluble starch can be cereal starch, potato starch, or using cereal, potato starch as the modified starch of raw material.
Particularly, the soluble starch be soluble glutinous rice starch under normal temperature and pressure (≤30 DEG C, 1 atmospheric pressure), it is pre-
Gelatinized starch.
Particularly, evaporation suppressor described herein is molecule membranous type evaporation suppressor.
In this application, the molecule membranous type evaporation suppressor refers to, can be in the moisture for being wrapped in polypide after spraying
The evaporation suppressor of surface formation molecular film.It can be long-chain fatty alcohol such as tetradecanol, hexadecanol, octadecanol, two
Ten alkanols, tadenan etc., or short chain fatty alcohol such as normal propyl alcohol, n-butanol, n-amyl alcohol etc., or long-chain rouge
The mixture of fat alcohol and short chain alcohol.
Particularly, the evaporation suppressor is octadecanol, n-amyl alcohol or n-butanol and hexadecanol mixture.
In this application, term " ultra-low surface tension surfactant " refers under 25 DEG C, an atmospheric pressure, matter
The surface tension for measuring its aqueous solution of concentration 0.1% is less than 25mN/m, the preferably smaller than surfactant of 21mN/m.
Particularly, the ultra-low surface tension surfactant is selected from organic silicon surfactant, carbon fluorine class surface-active
One of agent, high molecular surfactant (relative molecular mass is greater than 1000) or its modified product or mixture.
Particularly, the ultra-low surface tension surfactant is selected from ethyoxyl modified trisiloxanes, glucamide dimerization
Trisiloxanes, allyl glycidyl ether type trisiloxanes, tetrasiloxane imidazoles ([Si4-4-Si4im]Cl2), N ' -3- (diformazan
Base)-propyl-(N- perfluoro butyl sulfonyl-N- octyl sulfonyl)-imines carboxylic acid type glycine betaine C4F9SO2NH(CH2)3N
(CH3)2, polyether-modified trisiloxanes, perfluoro carboxylic acid, CF3(CF2)2OCF(CF3)CF2OCF(CF3)COO-Na+、
CF3(CF2)6CONH(CH2)3N+(CH3)I-、C8F17CH2CH2CONH(CH2)3N+(CH3)2、
CF3(CF2)nCH2O(CH2CH2O)mH)。
Particularly, the ultra-low surface tension surfactant is selected from polyether-modified trisiloxanes, C8F17SO2NH(CH2)3N
(CH2COO) Na or organosilicon succinate.
Further object is related to a kind of for preventing and treating the medical fluid of micro pest, and it includes the groups according to the application
Close object and water.
Particularly, it is 1:300 to 1 according to the weight ratio of the composition of the application and water in the medical fluid according to the application:
500。
Further object is related to being used to prevent and treat the purposes of micro pest according to the composition of the application.
The further object of the application is related to a kind of use according to the method for the composition for preventing and controlling micro pest of the application,
Include:
1) water is added into the composition according to the application, is configured to 300 to 500 times of solution by weight；
2) solution is sprayed to the plant infected by micro pest.
In this application, term " micro pest " refers to small in size, body surface critical surface tension is low, likes being hidden in
The pest of the features such as in plant gap.Particularly, the micro pest is selected from Hemipteran pest such as wood louse, aphid, plant hopper, powder
Lice, leafhopper etc., acarina pest such as red spider, rust mite etc., lepidoptera pest diamondback moth etc., Thysanoptera such as thrips etc., directly
The wing mesh pest such as nymph of a locust, coleopteran pest such as flea beetle, Diptera pest such as cecidomyiia, the aphid for being preferably selected from Semiptera Homoptera are total
Section, Psylloidea, powder louse superfamily, Coccoidea, cicadelloidea pest, such as honeysuckle aphid or Wolfberry Aphid.The application's
Composition can effectively kill these micro pests.
It is the conventional method that applying pesticides kill pest by spraying.Those skilled in the art can be empirically serious according to insect pest
Degree and position etc. determine specific spray amount and spray method.
The method relies on the surfactant of ultra-low surface tension, breaks through the critical surface tension of pest body surface, incite somebody to action this
Apply for that the solution of composition is sent between the appendage (such as enough, wing) of pest, it made to be sticked together with polypide, prevent pest from
Activity feeding is finally lethal, to play control efficiency.For the pest being hidden in plant gap, solution also can be in ultralow table
Under the effect of face tensile surface activating agent, penetrate into inside gap, so that the pest secure attachment in gap will be hidden in gap
It can not climb out of, keep it movable and dead.This method only relies on the viscosity of starch fluid not against toxicity desinsection, by microminiature
Pest is fixed, to reach prevention and treatment purpose.Therefore, this method is effective to various microminiature pests, and insecticidal spectrum is wide, action speed
Fastly, and it is very friendly to environment.
In conclusion the composition of the application is by ultra-low surface tension surfactant, it is viscosity with soluble starch
Ingredient sticks pest by penetrating into inside pest appendage gap or penetrating into inside the plant gap that pest is hidden oneself, prevents it from escaping
It is de-, to realize quick, efficient, environmental protection, the purpose of easy desinsection, and insecticidal spectrum is wide, has broad application prospects.
Detailed description of the invention
Fig. 1 is in distilled water group and evaporation suppressor group, and moisture evaporation rate changes with time.
Specific embodiment
For the ease of the understanding of those skilled in the art, the application is further described below with reference to embodiment, it is real
Applying the content that example refers to not is the restriction to the application.
Embodiment 1: evaporation suppressor measure of merit
3g distilled water, 1mg evaporation suppressor (octadecanol) are weighed, evaporation suppressor is poured into distilled water, concussion is stirred
Mix uniformly (the evaporation suppressor content in solution is about 0.03%, is equivalent to the evaporation suppressor of 10% content being diluted to 300
Times liquid), it pours into the culture dish of diameter 90mm.3g distilled water is taken again, is poured into another culture dish of diameter 90mm.Claim respectively total
Quality is placed in naturally in humidity and the constant closed room of temperature.It weighs every 20min, record gross mass variation, as the following formula
Calculate the effect (Fig. 1) that evaporation suppressor inhibits moisture evaporation.
Fig. 1 is that moisture evaporation rate changes with time dynamically.It is compared with the moisture evaporation rate of distilled water, evaporation inhibits
The moisture evaporation rate of agent aqueous solution is lower.This illustrates that the inhibitory effect that evaporation suppressor evaporates moisture is obvious, and evaporation inhibits
The evaporation rate of agent group is about the 1/2 of distilled water group in the later period.Evaporation suppressor has significantly slowed the speed of moisture evaporation and diffusion,
Extend the action time of solution.
In addition, the different leaf age fructus lycii blades that solution sparges vertical hanging are removed and are lain against until blade all soaks
25 DEG C of shady place investigates leaf water evaporating completely desired time, guarantor of the statistics moisture in different leaf age wolfberry leaf on pieces
The time is stayed, the effect (table 1) that evaporation suppressor inhibits moisture evaporation is calculated.
Using fructus lycii blade as material, test evaporation suppressor effect show, evaporation suppressor to the inhibitory effect of moisture and
Leaf age relationship is little, is significantly better than distillation water process, and duration extends to more than 30 minutes from the 6-7 minute of distilled water, when asphyxia
Between extend about 5 times.
Table 1: evaporation suppressor inhibits the effect (minute) of moisture evaporation
Embodiment 2: the effect of composition for preventing and controlling honeysuckle aphid adult aphid and Paratrioza sinica adult
According to the application compositions formulated, composition by weight is as follows: soluble starch 83%, evaporation suppressor
15%, ultra-low surface tension surfactant 2%.Concrete operations are as follows.
Weighing soluble starch respectively, (hundred He Le company of Beijing provides, amylopectin content 62%, amylose content
38%) 6.4g, octadecanol (as evaporation suppressor, Sigma Corporation's production, chemistry is pure) 1.2g, hundred molten 101 organosilicon tables
(polyether-modified trisiloxanes, hundred He Le company of Beijing provide face activating agent, and under 25 DEG C, an atmospheric pressure, weight is dense
The surface tension of its aqueous solution of degree 0.1% is 20.5mN/m) 0.16g, obtain composition.Distilled water 2320g is weighed respectively,
3096g, 3872g are configured to 300 times of solution, 400 times of solution and 500 times of solution with above-mentioned composition.Side edged is used when preparation
Soluble starch, octadecanol, hundred molten 101 organic silicon surfactants are successively added to the water by agitating mode, stir evenly standby
With.
Honeysuckle aphid adult aphid and Paratrioza sinica adult are experimental field acquired from China Medical Sciences Academy Medical Plants Institute,
It sets and is raised 24 hours on honeysuckle blade and fructus lycii tender leaf respectively, it is spare.Extra blade and polypide are rejected when processing, are retained each
Handle 10 blades, every 5, blade worms living.By blade submergence about 1 second in the solution with aphid and wood louse, after taking-up
Petiole suspension blade is clamped with clip, sets ventilation situation in simulation field in 10m/s ventilating duct.After 12 hours under a dissecting microscope
It checks, using dissecting needle touching feeler and the reactionless foundation dead as judgement of foot, calculates the death rate.It is done pair with distilling water process
According to.
Table 2: honeysuckle aphid and Paratrioza sinica adult controlling effect experiment
The solution of the application composition can effectively kill honeysuckle aphid and fructus lycii it can be seen from the result of upper table
Wood louse, and the effect of solution is positively correlated with its concentration, it was demonstrated that the composition of the application can be effective for preventing and treating micro pest.
Embodiment 3: the effect of composition for preventing and controlling red spider adult mite and deutonymph
According to the application compositions formulated, composition by weight is as follows: soluble starch 85%, evaporation suppressor
10%, ultra-low surface tension surfactant 5%.Concrete operations are as follows.
Soluble starch (hundred He Le company of Beijing provides, 100% pre-gelatinized starch) 8.5g is weighed respectively, and n-amyl alcohol (is made
For evaporation suppressor, the production of 1,100 Chemical Co., Ltd. of Shandong is analyzed pure) 1.0g, hundred molten 102 fluorocarbon surfactants
(C8F17SO2NH(CH2)3N(CH2COO) Na, hundred He Le company of Beijing provides, under 25 DEG C, an atmospheric pressure, weight
The surface tension of its aqueous solution of concentration 0.1% is 19.8mN/m) 0.5g, obtain composition.Distilled water 2990g is weighed respectively,
3990g, 4990g are configured to 300 times of solution, 400 times of solution and 500 times of solution with above-mentioned composition.Side edged is used when preparation
Soluble starch, n-butanol, hundred molten 102 organic silicon surfactants are successively added to the water by agitating mode, stir evenly spare.
Red spider (the full pawl of apple of Nakai leaves on piece is experimental field acquired from China Medical Sciences Academy Medical Plants Institute
Mite) adult mite and deutonymph, set pawpaw fed on leaves 24 hours, it is spare.Extra blade and polypide are rejected when processing, retain each place
10 blades are managed, every blade there are 5 adult mites and deutonymph living respectively.By the blade submergence in the solution about 1 with red spider
Second, petiole suspension blade is clamped with clip after taking-up, sets ventilation situation in simulation field in 10m/s ventilating duct.After 12 hours
It is checked under disecting microscope, using the reactionless foundation dead as judgement of foot of dissecting needle touching red spider, calculates the death rate.With
Distillation water process compares.
Table 3: pawpaw red spider control efficiency experiment
The solution of the application composition can effectively kill the adult mite of pawpaw red spider it can be seen from the result of upper table
And deutonymph, and the effect of solution is positively correlated with its concentration, and the different worm state death rates are different, deutonymph is easier to be killed, and demonstrate,proves
The composition of bright the application can be effective for preventing and treating micro pest.
Embodiment 4: the effect of composition for preventing and controlling thrips adult and nymph
According to the application compositions formulated, composition by weight is as follows: soluble starch 85%, evaporation suppressor
5%, ultra-low surface tension surfactant 10%.Concrete operations are as follows.
Weigh soluble starch respectively (hundred He Le company of Beijing provides, pre-gelatinized starch and soluble glutinous rice powder mixture)
8.5g, evaporation suppressor (n-butanol and hexadecanol mixture, hundred He Le company of Beijing provide) 0.5g, hundred molten 103 macromolecules
(organosilicon succinate, hundred He Le company of Beijing provide surfactant, and under 25 DEG C, an atmospheric pressure, weight is dense
The surface tension of its aqueous solution of degree 0.1% is 20.9mN/m) 1.0g, obtain composition.Distilled water 2990g is weighed respectively,
3990g, 4990g are configured to 300 times of solution, 400 times of solution and 500 times of solution with above-mentioned composition.Side edged is used when preparation
Soluble starch, evaporation suppressor, hundred molten 103 high molecular surfactants are successively added to the water by agitating mode, stir evenly
It is spare.
Thrips (onion thrips) adult on Longstamen Onion Bulb blade is experimental field acquired from China Medical Sciences Academy Medical Plants Institute
And nymph, set Longstamen Onion Bulb fed on leaves 24 hours, it is spare.Extra blade and polypide are rejected when processing, retain each processing 10
Blade, every blade have 5 adult mites and deutonymph living respectively.By blade submergence about 1 second in the solution with thrips, take out
Petiole suspension blade is clamped with clip afterwards, sets ventilation situation in simulation field in 10m/s ventilating duct.In disecting microscope after 12 hours
Lower inspection calculates the death rate using the foot of dissecting needle touching thrips and feeler or the reactionless foundation dead as judgement of wing.To steam
Distilled water processing compares.
Table 4: Longstamen Onion Bulb thrips control efficiency experiment
The solution of the application composition can effectively kill the onion thrips adult of Longstamen Onion Bulb it can be seen from the result of upper table
And nymph, and the effect of solution is positively correlated with its concentration, and nymph is easier to be killed, it was demonstrated that the composition of the application can be with
Effective for preventing and treating micro pest.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims (10)
1. a kind of for preventing and treating the composition of micro pest, it includes soluble starch, ultra-low surface tension surfactant and
Evaporation suppressor.
2. according to claim 1 for preventing and treating the composition of micro pest, wherein soluble starch, ultra-low surface tension
The content of surfactant and evaporation suppressor is by weight percentage are as follows: ultra-low surface tension surfactant 2%-10%,
Evaporation suppressor 5%-15%, surplus are soluble starch.
3. according to claim 1 for preventing and treating the composition of micro pest, wherein soluble starch be selected from cereal starch,
Potato starch, or using cereal, potato starch as the modified starch of raw material；Preferably, soluble starch is selected from soluble glutinous rice and forms sediment
Powder, pre-gelatinized starch.
4. according to claim 1 for preventing and treating the composition of micro pest, wherein evaporation suppressor is selected from molecule membranous type
Evaporation suppressor；Preferably, evaporation suppressor is selected from the mixed of long-chain fatty alcohol, short chain fatty alcohol or long-chain fatty alcohol and short chain alcohol
Close object；It is highly preferred that evaporation suppressor is selected from octadecanol, n-amyl alcohol or n-butanol and hexadecanol mixture.
5. according to claim 1 for preventing and treating the composition of micro pest, wherein ultra-low surface tension surfactant
Selected from one of organic silicon surfactant, carbon fluorine class surfactant, high molecular surfactant or its modified product or mixing
Object；Preferably, ultra-low surface tension surfactant is selected from polyether-modified trisiloxanes, C8F17SO2NH(CH2)3N(CH2COO)
Na or organosilicon succinate.
6. a kind of for preventing and treating the medical fluid of micro pest, it includes composition according to any one of claim 1 to 5 and
Water.
7. it is according to claim 6 for preventing and treating the medical fluid of micro pest, wherein the weight ratio of the composition and water is
1:300 to 1:500.
8. the purposes that composition according to any one of claim 1 to 5 is used to prevent and treat micro pest.
9. a kind of method using composition for preventing and controlling micro pest according to any one of claim 1 to 5 comprising:
1) water is added into composition according to any one of claim 1 to 5, is configured to 300 to 500 times by weight
Solution；
2) solution is sprayed to the plant infected by micro pest.
10. according to the method described in claim 9, wherein micro pest is selected from Semiptera, Acarina, Lepidoptera, Thysanoptera, straight
Wing mesh, coleoptera, Diptera pest；Preferably, micro pest is selected from Semiptera Homoptera Aphidoidea, Psylloidea, powder
The pest of lice Superfamily, Coccoidea, cicadelloidea；It is highly preferred that micro pest is selected from honeysuckle aphid, Wolfberry Aphid, red spider
Or thrips.
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