CN109744253A - Using the method and composition of physics mode pest control - Google Patents
Using the method and composition of physics mode pest control Download PDFInfo
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- CN109744253A CN109744253A CN201711070164.1A CN201711070164A CN109744253A CN 109744253 A CN109744253 A CN 109744253A CN 201711070164 A CN201711070164 A CN 201711070164A CN 109744253 A CN109744253 A CN 109744253A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention discloses the method and compositions using physics mode pest control.In particular it relates to which a kind of composition of pest control, includes by weight percentage: the inertia subparticle of 65%-83%, the surfactant of 2%-10%, 15%-25% water evaporation inhibitor.The composition and method of pest control of the present invention are quickly, efficient, environmental protection, easy, insecticidal spectrum is wide, have broad application prospects.
Description
Technical field
The invention belongs to agricultural production, it is related to the method and composition using physics mode pest control.Specifically,
The present invention relates to the method and compositions for inhibiting agent to preventing and controlling pest using inertia subparticle, surfactant and water evaporation.
Background technique
In Agricultural Activities, it is the great influence factor for causing production loss and quality to decline that disease pest, which causes harm, to mitigate
Loss caused by disease pest causes harm generallys use toxic medicament mode in addition to using agronomic measures such as crop rotation interplanting, artificial trimmings
Pest is killed, to reach control pest population quantity, mitigates the purpose that pest is caused harm.Though being had using pesticide control pest fast
Fast, efficient advantage, but also there is pollution environment, generate the residual side effect of agriculture.Safe and effective pesticide substitution is needed in production
New method, the new technology of pest control.
All pests have respiratory system, it is necessary to be breathed by valve, can endure short-term hypoxia, but for a long time
Anoxic is easy death by suffocation.It is civil to have the anti-method to eliminate aphis of Huanghe water sprinkling plant that the phase occurs using muddiness in aphid, lead to
The adhesive attraction mitigation aphid for crossing apnea pattern and clay is caused harm.The mode of this insect prevention is safe and environmentally friendly compared with pesticide poisoning, but
The influence to sediment plant photosynthesis on blade face is remained, and insecticide efficiency is very low, it is only effective to aphid, effect is not prevented and treated to most pests
Fruit, no promotional value.
Chinese patent application CN201710272553.6 " a kind of environment-friendly pesticide and preparation method thereof ", discloses one kind
Using the method for mineral oil and surface-active agent to preventing and controlling pest, this method with mineral oil be suffocate desinsection active constituent, to plant
The wax coat of object blade has dissolution, is easy to produce phytotoxicity, and liquid evaporation is fast, and mineral oil can not effectively close pest
The efficiency of valve, the desinsection that suffocates is not high, it is necessary to which studying new technology reduces phytotoxicity, improves insecticidal effect.
Chinese patent application CN200510085776.9 " green safety pesticide " discloses a kind of using mineral oil, blade face
The composition of fertilizer, surfactant and chemical pesticide control pest, mineral oil are only used as the synergist of chemical pesticide to come using subtracting
Lacked the usage amount of chemical pesticide, but and unresolved pesticide residue and environmental pollution problem, and the addition of surfactant promotes
Spray liquid evaporation is accelerated, and the polypide effective wetting time is short, and drug effect is not high.
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, and
The valve of pest cannot effectively be closed and then play the effect of asphyxia desinsection, need safer and more effective composition.
Chinese patent CN1038568 discloses a kind of " Sprayable formulations ", i.e., evaporation suppressor is added in pesticide, thus
The control efficiency of pesticide is improved, but active insecticidal components are still pesticide, evaporation suppressor only serves booster action, can inhibit
Droplet evaporation, prevents droplet from becoming smaller, and reduces drift.Evaporation suppressor is used alone and does not have insecticidal activity, and the composition
There is no fundamentally solve effective desinsection and pesticide residue and problem of environmental pollution.
Chinese Patent Application No. CN201110294264.9 disclose " a kind of spray adjuvants and preparation method thereof " by azone,
The composition such as trimethoxy silane, the vegetable oil of esterification, nonionic surfactant NP-10, % and Ultraviolet Absorber UV-P,
For improving Pesticide use effect, exclusive use has no insecticidal effect.
Chinese patent CN106417320 discloses a kind of " synergy spray suitable for plant protection drone prevention and control rice pest
Mist auxiliary agent and preparation method thereof ", by surfactant, antitranspirant (methylated vegetable oil), antidrift agent (promotees sedimentation, sulfuric acid
Potassium etc.), anti-light solution agent (ultraviolet absorbing agent), antioxidant, the composition such as adsorbent (mineral oil), for plant protection drone spray
Anti- transpiration in the process, anti-drift.
Chinese patent CN1321422 discloses a kind of " special-purpose non-toxic pesticide for tea and vegetables ", by mineral oil, surfactant
It is formed with pesticide, for preventing and treating tea and vegetables pest.
Chinese patent CN1129059 discloses a kind of " assistant for killing insects by touching ", by third fractional oil (mineral oil), stabilizer,
Emulsifier, solvent and negative cross resistance compound (pesticide) composition, for preventing and treating the pests such as aphid mite a red-spotted lizard.
Chinese patent CN102090423 discloses " a kind of natural high polymer polysaccharide insecticidal composition ", by konjak portuguese gansu polyose
Sugar, cactus juice, alkyl polyglycoside composition, for pest and the mythimna separata insect prevention of suffocating.Although this method and use apnea pattern
Desinsection, but cost of material is high, and extension rate is small, and for the pest polypide of high hydrophobicity, can not effectively infiltrate polypide, kill
Worm effect is to be improved, needs more efficient disinsection method and composition.
Chinese patent CN201310607364 discloses " a kind of full-service fluid plant-protecting film ", by fulvic acid, rice bran
The composition such as wax, fatty acid mixed suffocates for fruit bagging and prevention and treatment and fixes preventing disease and pest.This method is equally because mixture is long-range
In the wetting critical surface tension of pest polypide, insecticidal effect is to be improved.
Chinese patent CN201510467735 discloses a kind of " nontoxic multi-functional photosynthetic liquid film ", by lauryl alcohol (laurel
Alcohol), hexadecanol composition for inhibiting rising and evaporation prevent and treat mite ovum and thrips.The composition is also due to a lack of ultralow interfacial tension
Surfactant, the wetting critical surface tension of polypide can not be broken through, insecticidal effect is unsatisfactory.
Chinese patent CN201610101500 discloses that " a kind of propylene glycol mono is as acaricidal purposes and kills
Mite agent and purposes " is made of propylene glycol fatty acid monoester, Organic Alcohol, vegetable oil, for preventing and treating harmful mite.Plant in the composition
Object oil is also easy to produce phytotoxicity, also due to a lack of surfactant, can not break through the critical surface tension of pest, insecticidal effect needs into one
Step is promoted.
Chinese patent application CN 201710156913 " fog drop evaporation retardant and its preparation and application " discloses one
Kind by bio-extract, polyalcohol, weight gain component, organosilicon and water form it is spraying for aviation plant protection when by the way that evaporation is added
Inhibitor reduces droplet evaporation, increases droplet weight by weight gain, increases the composition of the performance of droplet anti-drift.The patent Shen
In the composition that please be announced, active constituent is still pesticide, and evaporation suppressor only plays synergistic effect, can not be from basic
Pesticide residue, drug resistance and environmental problem brought by upper solution agricultural insecticide.
Chinese patent application CN101235266 " a kind of preparation method of composite water evaporation inhibitor " and
CN101235267 " a kind of preparation method of heterogeneous water evaporation inhibitor ", individually disclosing one kind can form not in the water surface
The molecular film of dissolubility inhibits the moisture of open waters to evaporate by water evaporation inhibitor, protects for Water Resources In Arid Regions
Technology, but be not directed to plant protection art for by apnea pattern pest control.
Being disclosed in the information of background parts of the present invention, it is only intended to increase understanding of the overall background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
Applicant has found during studying control of insect for a long period of time, the close phase of interfacial activity of control efficiency and pest body surface
It closes.Most pest body surfaces have superpower hydrophobic active, and wetting critical interfaces tension is lower than 25mN/m, most using water as the anti-of medium
Technology is controlled, cannot effectively contact the polypide of pest, therefore the effect majority for prevention and treatment of tagging is unsatisfactory.Applicant passes through deeply
The wetting critical interfaces tension for studying pest has been invented a kind of new technology using inertia subparticle asphyxia desinsection, has effectively been solved
Determined environmental protection, pesticide residue and pest effectively prevent between contradiction.
The object of the present invention is to provide a kind of compositions of pest control, with inertia subparticle, surfactant, water
Evaporation suppressor is asphyxia active insecticidal components.
It is a further object to provide a kind of methods using physics mode pest control, using water as carrier,
The surfactant of inertia subparticle, water evaporation inhibitor and ultralow interfacial tension is added in water, it is enough spraying, make pest
Death by suffocation.
The mechanism of pest control of the present invention are as follows: the surface-active of inertia subparticle, ultralow interfacial tension is added in water
Agent and water evaporation inhibitor, it is enough spraying, pest is wrapped up comprehensively with mixed liquor, pest is made to be in anaerobic condition for a long time and stop up
Breath is dead.This method relies on the surfactant of ultralow interfacial tension, and the inertia subparticle to suspend in water is sent into pest
It breathes in valve, blocks the fine breathing valve inner passage (Fig. 1) of pest, and moisture evaporation is inhibited by water evaporation inhibitor,
Pest is set to be in anaerobic condition, final death by suffocation for a long time.This method only relies on inertia subparticle not against toxicity desinsection
It blocks pest and breathes valve, quick desinsection is effective to various pests, and insecticidal spectrum is wide, and very friendly to environment.
For the purpose for realizing asphyxia desinsection, the present invention provides a kind of compositions of pest control, and the composition is by weight
Percentage includes: the inertia subparticle of 65%-83%, the surfactant of 2%-10%, and the water evaporation of 15%-25% inhibits
Agent.Wherein, surfactant be lower than minimum content when, control efficiency is remarkably decreased, and be higher than maximum level when, phytotoxicity is serious;
When water evaporation inhibitor is lower than minimum content, when can not significantly inhibit moisture evaporation, and be higher than maximum level, increased costs but water
Divide evaporation inhibitory effect that can't significantly improve.
Further, in the composition of pest control, inertia subparticle can be starch particle, as cereals are formed sediment
Powder, potato starch, or using cereal, potato starch as the modified starch of raw material;It may be mineral based fine particles, as diatomite is micro-
Grain, clay particle, attapulgite particle, silicon dioxide microparticle etc..For inertia subparticle under normal temperature and pressure state, property is steady
It is fixed, without toxic activity, it is used alone and does not have killing ability usually;In the present compositions, being used in combination can just play
Insecticidal activity will not be chemically reacted with other ingredients in component, and property is stablized.
Further, in the composition of pest control, the diameter of inertia subparticle must be less than target pest and breathe
The minor axis of valve just facilitates into embolism, usually less than 50 microns, preferably less than 40 microns is played the role of in valve, more preferably
Less than 30 microns when ground is for micro pests such as thrips, rust mites.Inertia subparticle under the action of surfactant, Ke Yishun
The breathing valve that benefit passes through pest enters in internal corrugated hose, to block organ, causes pest anoxia asphyxia dead.
Further, in the composition of pest control, the surfactant of ultralow interfacial tension is in 25 DEG C, an atmosphere
Under the conditions of pressure, using pure water as solvent, aqueous solution surface tension≤21mN/m when mass percent concentration is 0.1% can be with
For high molecular surfactant, preferably water-soluble organic silicon type surfactant, carbon fluorine class surfactant or their modification
Surfactant, or any mixture of these inhomogeneity surfactants.
Pest surface usually has ultralow interfacial tension, and breathing valve is nearby even more the hydrophobicity with superelevation, wetting
Critical surface tension is usually less than 25mN/m, and the liquid of aqueous medium is difficult to soak polypide, let alone enters the valve of pest.
For the effect for improving asphyxia desinsection, more inertia subparticles are allowed to enter in pest valve, it is necessary to greatly reduce the table of water
Face tension (71.8mN/m) makes it below the wetting critical surface tension (about 25mN/m or so) of pest body surface, could be by pest
Body surface complete wetting is in liquid, and the particularly less than wetting critical surface tension (about 21mN/m or so) of valve could break through evil
Worm breathes the superpower hydrophobic resistance of valve, and inertia subparticle is sent into valve, blocks tracheae, leads to pest death by suffocation.
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 hereinafter, the wetting that the surface tension of water can be reduced to pest valve is critical
Surfactant under surface tension (about 21mN/m), then need special formula.The surface of the ultralow interfacial tension is living
Property agent can be high molecular surfactant, preferably single water-soluble organic silicon type surfactant, carbon fluorine class surface-active
Agent or their modified product, or any mixture of inhomogeneity surfactant;The table of the ultralow interfacial tension
Face activating agent is under 25 DEG C, an atmospheric pressure, water-soluble when mass percent concentration is 0.1% using pure water as solvent
Liquid surface tension≤21mN/m.
Further, in the composition of pest control, water evaporation inhibitor can be molecular film type water evaporation inhibitor,
It may be water lock type water evaporation inhibitor.The molecule membranous type water evaporation inhibitor refers to, can be wrapped in worm after spraying
The moisture surface of body forms the substance of molecular film, can be long-chain fatty alcohol such as tetradecanol, hexadecanol, octadecanol, two
Ten alkanols, tadenan etc., or short chain alcohol such as normal propyl alcohol, n-butanol, n-amyl alcohol etc., or long-chain fatty alcohol
With the mixture of short chain alcohol.The water lock evaporation suppressor can be natural polysaccharide compound, such as water soluble starch, sea
Phycocolloid, xanthan gum, chitosan etc.;Or artificial synthesized organic high molecular compound, such as polyvinyl alcohol, polylysine
Deng.
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, but can also reduce the water-holding capacity on blade face and polypide surface, that is, reduce the thickness on blade face and polypide surface moisture film, water
Divide and quickly evaporate, and the activity of surfactant is higher, moisture film is thinner, easier evaporation, and evaporation is faster, and drug effect and fertilizer efficiency are got over
It is low.It is frequently seen in production practices, surfactant is added in medical fluid and is sprayed, the moisture on blade face almost steams immediately after spray
Hair, does not see whether being sprayed at all, therefore is easy to produce drain spray perhaps the accident of respraying causes effect of spraying pesticide bad or generates
Phytotoxicity.This dual character of surfactant is the method or composition effect for leading to the asphyxia desinsection of current all announcements
The main reason for bad.Surfactant is not added, then because the hydrophobicity of polypide can not cover polypide, unlikely blocking has super
The hydrophobic pest of grade breathes valve.Surfactant is added, although moisture can wrap up infiltration polypide, because moisture is quick
Evaporation, of short duration anoxic are revived quickly after not will lead to pest death by suffocation or stupor, are wrapped up for a long time without moisture
And closing, it can not really kill off the insect pests.Applicant has invented a kind of this contradictory solution of solution by studying for a long period of time and testing
Certainly scheme introduces water evaporation inhibitor that is, in asphyxia desinsection system, by the water evaporation inhibitor of introducing, solves that table is added
After the activating agent of face, polypide surface package moisture rapid evaporation the shortcomings that, especially extension pest breathing valve wrapped up by moisture
Time, strengthen the effect of pest death by suffocation, prevent seemingly-dead pest " dead " and demutation, while remaining addition surface-active
Agent generate ultralow interfacial tension, make water quickly wrap up infiltration polypide and by inertia subparticle be sent into pest breathing valve thus
Generate the ability of death by suffocation.
In addition, the composition of pest control can also further include plant nutrient, preferably KCl, MgSO4、Ca
(NO3)2Equal soluble organic fractions.The effect of different salt ion Surfactants is different, some salt ions can contribute into one
Step reduces the surface tension of surfactant, to improve the activity of surfactant or reduce the dosage of surfactant.For
The asphyxia insecticidal effect for further increasing inertia subparticle, reduces cost, and plant can be added in the composition of pest control
Object nutrient, such as KCl, MgSO4、Ca(NO3)2Equal soluble organic fractions, it is ensured that make the surface tension of composition lower than pest valve
Wetting critical surface tension (21mN/m), while playing the effect of plant foliage fertilization.With the total of the composition of pest control
The weight percent of poidometer, soluble organic fraction is 0.1%-0.5%, and preferably 0.2%-0.3%, salt ion can be by liquid
Surface tension further reduce.When salt ion content is lower than 0.1%, the effect for reducing surface tension of liquid is unobvious, and
When salt ion content is higher than 0.5%, then phytotoxicity is easy to produce.
Furthermore the present invention also provides a kind of aqueous solution of composition comprising above-mentioned pest control, the aqueous solution pass through by
500 times -1500 times, preferably 800 times to 1200 times, more preferable 800 to 1000 times of acquisitions is diluted with water in the composition.
Present invention could apply to dispensaries pest, especially more effective to agricultural pests, especially be less than to body length
The microminiature pest such as Semiptera, Thysanoptera, Orthoptera, coleoptera, Hymenoptera, Lepidoptera, Diptera, Acarina of 10mm etc.
Control efficiency is more preferably.
In conclusion the present invention using water as medium, by the surfactant of ultralow interfacial tension, makes inertia subparticle
Block pest and breathe valve, by apnea pattern desinsection, the method for this pest control quickly, efficiently, environmental protection, easy, desinsection
Spectrum is wide, has broad application prospects.
Detailed description of the invention
Fig. 1 is shown in the bubble that valve sieve super-hydrophobic layer is formed in the pest with valve sieve.
Fig. 2 is shown in the bubble that valve super-hydrophobic layer is formed in the pest without valve sieve.
Fig. 3 is shown in the pest with valve sieve, and inertia subparticle concentrates near stomata sieve, blocks valve.
Fig. 4 is shown in the pest without valve sieve, and inertia subparticle is directly entered stomata, blocks valve.
The evaporation rate of Fig. 5 signal water evaporation inhibitor and pure water (i.e. distilled water).
Appended drawing reference:
1 epidermis, 2 valve sieves 3 labia, 4 super-hydrophobic layer
5 bubble, 6 tube wall cell, 7 valve, 8 body wall
9 tracheae, 10 bronchus, 11 inert particle.
It is to be appreciated that appended attached drawing is not proportionally drawn, and merely to illustrating each of basic principle of the invention
The suitably simplified technique of painting of kind feature.The specific design feature of invention disclosed herein include for example specific size, direction,
Position and shape will be partly determined by the specific application and use environment.
In appended multiple attached drawings, same or equivalent part (element) is with the index of identical appended drawing reference.
Specific embodiment
It specific reference will be made to each embodiment of the invention now, show these realities in the drawings and the following description
Apply the example of scheme.It is described although the present invention is combined with an exemplary implementation, it will be understood that this specification is simultaneously
It is not intended to limit the invention to those exemplary implementation schemes.On the contrary, the present invention is directed to not only cover these exemplary implementations
Scheme, and covering can be included within the spirit and scope of the present invention being defined by the appended claims various replace
It changes, modify, equivalents and other embodiments.
Fig. 1 to Fig. 4 is to illustrate the working principle of the invention.The respiratory system of insect is the epidermis 1 of invagination, opening tool
Have specialised structure: Fig. 1 shows the respiratory system that pest is sieved with valve comprising valve sieves 2, labia 3, super-hydrophobic layer 4, tube wall
Cell 6 etc.;Fig. 2 shows the respiratory systems that pest is sieved without valve comprising valve 7, super-hydrophobic layer 4, body wall 8, tracheae 9, branch
Tracheae 10 etc..Some valve ports have sieve texture, inside have cavity and labia 3, for filtering air in dust and
Water-saving (Fig. 1);Some insect valves only have simple opening and closing structure, and inside is simple tubular structure (Fig. 2).No matter which kind of
The insect valve of type has super-drainage structure at valve openings, and conventional surfactant can not be broken through near valve openings
Wetting critical surface tension, or because pest by it is spraying stimulation and irritability close valve, the shape near valve port
At bubble 5, prevent drug and moisture from entering, holding one's breath for short time can't be lethal by pest, therefore most pests are surrounding worm
After the moisture evaporation of body, it can bring back to life, seemingly-dead phenomenon occur.Therefore existing technology passes through the effect of apnea pattern pest control
It is unsatisfactory.
In the present compositions, except containing can break stomata wetting critical surface tension ultralow interfacial tension table
Outside the activating agent of face, also contain evaporation suppressor, it can extremely significant inhibition moisture evaporation.It is sprayed using composition of the invention
Processing, except can suffocate immediately in addition to pest, to the pest individual of temporary close valve, as the presence of evaporation suppressor,
Polypide is set to be in moisture infiltration state of siege for a long time.When polypide is in anaerobic condition for a long time, it can have to be again turned on gas
Door, enters inertia subparticle 11 inside valve with water, and moment blocks stomata, to make pest death by suffocation (Fig. 3, Fig. 4).
Once inertia subparticle enters stomata with the wetting critical surface tension that the surfactant of ultralow interfacial tension breaks through valve
Inside, the death by suffocation of pest will become irreversible, the case where will not occurring " dead " again and bring back to life.
Embodiment 1: the measure of merit of water evaporation inhibitor
Weigh 3g distilled water respectively, 3g water evaporation inhibitor pours into the culture dish of diameter 90mm, claim gross mass, put naturally
It sets, the humidity and temperature during record test.It weighs every 20min, record gross mass variation calculates test water evaporation inhibitor
Inhibit the effect (Fig. 5) of moisture evaporation.
Fig. 5 is that moisture is evaporated by the evaporation rate changed over time after the inhibition of water evaporation inhibitor.With the water of distilled water
Point evaporation rate is compared, and the inhibitory effect that water evaporation inhibitor evaporates moisture is obvious, and later period moisture evaporation rate is about water
1/2, the speed of moisture evaporation and diffusion is significantly slowed, to extend the action time of solution.
In addition, solution is sparged fructus lycii blade simultaneously, statistics moisture different leaf age wolfberry leaf on pieces retention time,
Calculate the effect (table 1) that water evaporation inhibitor inhibits moisture evaporation.
The inhibitory effect test display that water evaporation inhibitor evaporates wolfberry leaf on piece moisture, water evaporation inhibitor is to moisture
Inhibitory effect and leaf age relationship it is little, be significantly better than distillation water process, duration extends to more than 30 from the 6-7 minute of distilled water
Minute, apnea time extends about 5 times.
1 evaporation suppressor of table inhibits the effect (minute) of moisture evaporation
Embodiment 2: a kind of physical method and composition of pest control form as follows: by weight percentage, 75%
Inertia subparticle, 22% water evaporation inhibitor, the surfactant of 3% ultralow interfacial tension.
Concrete operations are as follows: 3 processing, each processing weighs 300 mesh (i.e. 48 microns of partial size) respectively, and (inertia is fine for diatomite
Particle) 3.4g, octadecanol (water evaporation inhibitor, chemistry are pure) 1g, (hundred standing grain of Beijing is happy for hundred molten 101 organic silicon surfactants
Company provides, and under 25 DEG C, an atmospheric pressure, aqueous solution surface tension when mass percent concentration is 0.1% is
20.5mN/m) 0.16g is separately added into distilled water 3643g, 4555g, 5467g, is configured to 800 times of liquid, 1000 times of liquid, 1200 times
Liquid.Successively diatomite, octadecanol, hundred molten 101 organic silicon surfactants are added using mode stirring while adding when preparation
It is spare in water.
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.The blade with aphid and wood louse is submerged when processing
About 1 second in the solution, petiole suspension blade is clamped with clip after taking-up, sets simulation field ventilation in the ventilating duct of 10 meter per seconds
Situation.It is checked under a dissecting microscope after 30 minutes, feeler and the reactionless foundation dead as judgement of foot is touched using dissecting needle,
Calculate the death rate.(table 2) is compareed with clear water (natural drying 1 week Beijing city drinking public water supply).
2 honeysuckle aphid of table and Paratrioza sinica adult controlling effect experiment
As can be seen from the above table, using this composition, 800 times -1200 times, especially 800 times -1000 times are being diluted with water
Under the conditions of, there is preferable control efficiency to honeysuckle aphid and Paratrioza sinica adult.
Embodiment 3: a kind of physical method and composition of pest control form as follows: by weight percentage,
72.8% inertia subparticle, 25% water evaporation inhibitor, the surfactant of 2% ultralow interfacial tension, 0.2%
Soluble-salt.
Concrete operations are as follows: 3 processing, each processing weighs 400 mesh (i.e. 44 microns of partial size) respectively, and (inertia is micro- for attapulgite
Fine grained) 3.65g, n-amyl alcohol (water evaporation inhibitor, chemistry are pure) 1.25g, hundred molten 102 fc-surfactant (C8F17SO2NH
(CH2)3N(CH2COO) Na, hundred He Le company of Beijing provide, and mass percent concentration is under 25 DEG C, an atmospheric pressure
Aqueous solution surface tension when 0.1% is 19.8mN/m) 0.1g, KCl (soluble-salt is analyzed pure) 0.01g (this modification be because
It only accounts for the 0.2% of composition), be separately added into distilled water 4003g, 5005g, 6007g, be configured to 800 times of liquid, 1000 times of liquid,
1200 times of liquid.Using mode stirring while adding successively by attapulgite, n-amyl alcohol, hundred molten 102 fc-surfactants when preparation
It is added to the water, it is 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, pawpaw fed on leaves is set respectively 24 hours, it is spare.The blade with adult mite and deutonymph is soaked when processing
Not in the solution about 1 second, petiole suspension blade is clamped with clip after taking-up, it is logical to set simulation field in the ventilating duct of 10 meter per seconds
Landscape condition.It checks, using the reactionless foundation dead as judgement of dissecting needle touching foot, is calculated under a dissecting microscope after sixty minutes
The death rate.(table 3) is compareed with clear water (natural drying 1 week Beijing city drinking public water supply).
The experiment of 3 pawpaw red spider control efficiency of table
As can be seen from the above table, using this composition, 800 times -1200 times, especially 800 times -1000 times are being diluted with water
Under the conditions of, there is preferable control efficiency to pawpaw red spider.
Embodiment 4: a kind of physical method and composition of pest control form as follows: by weight percentage,
74.5% inertia subparticle, 15% water evaporation inhibitor, the surfactant of 10% ultralow interfacial tension, 0.5%
Soluble-salt.
Concrete operations are as follows: 3 processing, each processing weigh 400 mesh (i.e. 44 microns of partial size) soluble starch (Beijing respectively
Hundred He Le companies provide) 7.45g, water evaporation inhibitor (n-butanol and hexadecanol mixture, hundred He Le company of Beijing provide)
1.5g, (organosilicon succinate, hundred He Le company of Beijing provides hundred molten 103 high molecular surfactants, at 25 DEG C, one
Aqueous solution surface tension when mass percent concentration is 0.1% under atmospheric pressure is 20.9mN/m) 1.0g, Ca (NO3)2(point
Analyse pure) 0.05g, it is separately added into distilled water 7990g, 9990g, 11990g, is configured to 800 times of liquid, 1000 times of liquid, 1200 times of liquid.
Using mode stirring while adding successively by soluble starch, water evaporation inhibitor, hundred molten 103 high-molecular surface actives when preparation
Agent, Ca (NO3)2It is added to the water, 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 larva, Longstamen Onion Bulb fed on leaves is set respectively 24 hours, it is spare.The Longstamen Onion Bulb blade with adult and nymph is immersed in when processing
About 1 second in solution, petiole suspension blade is clamped with clip after taking-up, sets ventilation feelings in simulation field in the ventilating duct of 10 meter per seconds
Condition.Checked under a dissecting microscope after 30 minutes, using dissecting needle touching foot and feeler, wing it is reactionless as judgement death according to
According to the calculating death rate.(table 4) is compareed with clear water (natural drying 1 week Beijing city drinking public water supply).
The experiment of 4 Longstamen Onion Bulb thrips control efficiency of table
As can be seen from the above table, using this composition, 800 times -1200 times, especially 800 times -1000 times are being diluted with water
Under the conditions of, on Longstamen Onion Bulb green onion Ji adult and nymph have good control efficiency.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to the exhaustive present invention, or limits the invention to disclosed precise forms, and it will be apparent that according to the above instruction,
Many changes and variations can be made.The purpose of selecting and describing the exemplary embodiment is that explaining of the invention specific
Principle and its practical application, so that others skilled in the art can be realized and utilize of the invention a variety of different
Exemplary implementation scheme and various chooses and changes.The scope of the present invention be intended to by appended claims and its
Equivalent form is limited.
Claims (12)
1. a kind of composition of pest control, includes by weight percentage: inertia subparticle, the 2%- of 65%-83%
The water evaporation inhibitor of 10% surfactant, 15%-25%.
2. the composition of pest control according to claim 1, wherein the inertia subparticle is starch particle, mine
The mixture of species particle or starch particle and mineral based fine particles.
3. the composition of pest control according to claim 2, wherein the starch particle is cereal kind of starch, potato
Starch, using cereal starch or potato starch as the modified starch of raw material or their any mixture.
4. the composition of pest control according to claim 2, wherein the mineral substance particle is bergmeal particle, clay
Particle, attapulgite particle, silicon dioxide microparticle or their any mixture.
5. the composition of pest control according to claim 1, wherein the diameter of the inertia subparticle is micro- less than 50
Rice, preferably smaller than 40 microns.
6. the composition of pest control according to claim 1, wherein the water evaporation inhibitor is the steaming of molecule membranous type water
Send out inhibitor or water lock type water evaporation inhibitor.
7. the composition of pest control according to claim 6, wherein the molecular film type water evaporation inhibitor is long-chain
Fatty alcohol, preferably tetradecanol, hexadecanol, octadecanol, eicosanol, tadenan or their any mixture;
It or is short chain alcohol, preferably normal propyl alcohol, n-butanol, n-amyl alcohol or their any mixture;It or is long-chain fatty alcohol and short chain alcohol
Mixture.
8. the composition of pest control according to claim 6, wherein the water lock type water evaporation inhibitor is natural
Polysaccharide compound, preferably water soluble starch, seaweed glue, xanthan gum, chitosan or their any mixture;It or is artificial
The organic high molecular compound of synthesis, preferably polyvinyl alcohol, polylysine or their mixture.
9. the composition of pest control according to claim 1, wherein the surfactant is water-soluble organic silicon type
Surfactant, carbon fluorine class surfactant, their modified surface active's agent or any mixing of these surfactants
Object.
10. the composition of pest control according to claim 1, wherein the composition also includes soluble organic fraction, it is excellent
Select KCl, MgSO4、Ca(NO3)2Or their any mixture.
11. a kind of aqueous solution of the composition comprising pest control described in any one of claims 1 to 10, the aqueous solution
By the way that 500 times of -1500 times of acquisitions are diluted with water in the composition.
12. a kind of method using physics mode pest control, claim 1 is added using water as carrier in the method in water
It is enough spraying to the composition of pest control described in any one of 10, make pest death by suffocation.
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CN116218265A (en) * | 2023-03-23 | 2023-06-06 | 青岛农业大学 | Physical protective film for fruit trees and application thereof |
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