CN110250196A - Insecticide composition and its controlled release system and application - Google Patents
Insecticide composition and its controlled release system and application Download PDFInfo
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- CN110250196A CN110250196A CN201910602408.9A CN201910602408A CN110250196A CN 110250196 A CN110250196 A CN 110250196A CN 201910602408 A CN201910602408 A CN 201910602408A CN 110250196 A CN110250196 A CN 110250196A
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- allyl isothiocyanate
- controlled release
- aldehyde
- insecticide composition
- release system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/18—Vapour or smoke emitting compositions with delayed or sustained release
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/04—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aldehyde or keto groups, or thio analogues thereof, directly attached to an aromatic ring system, e.g. acetophenone; Derivatives thereof, e.g. acetals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
- A01N47/46—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —N=C=S groups
Abstract
The present invention provides a kind of insecticide composition and its controlled release system and application.The present invention also provides the fumigant for preventing and treating phthorimaea operculella, effective component is allyl isothiocyanate.The effective component of insecticide composition and its controlled release system of the invention is allyl isothiocyanate and aldehyde compound.Fumigant, insecticide composition and controlled release system provided by the invention are good to the control efficiency of phthorimaea operculella, can long-acting control insect pest, reduce times for spraying, reduce drug cost.Allyl isothiocyanate is used alone or can effectively control phthorimaea operculella with the combination of certain aldehyde, and the lasting period is up to 3 months.Also, some combinations of allyl isothiocyanate and aldehyde have synergistic function for prevention and treatment phthorimaea operculella.
Description
Technical field
The invention belongs to biological pesticide technical fields, specifically, being related to a kind of insecticide composition and its controlled release system
With application.
Background technique
Potato is always that the important food source of China may become more important as population increases.Ma Ling
Potato plant growth is rapid, and every per mu yield is high, can be in unsuitable cereal crops such as rice, the grown on soil of wheat and corn.
It is often stored in soil for edible potato and digs out when needed, therefore the aboveground storage time is short, wherein about
10% potato must save as potato seed.
Influence of the plant development of potato vulnerable to certain pest and disease damages, these pest and disease damages limit the production of potato.Horse
Bell potato wedge stem moth (Phthorimaea operculell) is almost the country of each plantation potato in potato planting
Primary pest.It is both the storage pest and the pest in field of potato.Phthorimaea operculella can be when minister goes out on the ground just
Start to lay eggs, when potato is dug out or close to earth's surface when can lay eggs on stem tuber.The leaf of larval feeding potato plants and
Stem, and then the stem tuber in soil of causing harm.Phthorimaea operculella feeding potato tubers and can breed mostly generation in the soil.Work as horse
When bell potato harvests, the larva of phthorimaea operculella can be carried in the potato tubers caused harm, and bring storage link into.Work as temperature
When higher than 12.5 DEG C, potato tubers moth larvae can continue to develop.Under mild environmental condition, phthorimaea operculella is being stored up
Mostly generation can be bred during depositing.The potato of potato tubers moth larvae has been carried as potato seed, this pest can have been carried
To field, become the source of field phthorimaea operculella generation.Potato storage during control phthorimaea operculella be to
Close it is important, especially as the potato of potato seed.
Fumigant can be used to control many castes, including moth class.In general, use lasting period short compound as
Fumigant kills the native compound of class including speed.Abbasipour etc. (2015) test the essential oils of three kinds of high concentrations over the ground in
The control efficiency of extra large powder snout moth's larva (Ephestia kuhniella), it is effective for finding them in higher concentrations.
The larva of phthorimaea operculella (P.operculella) enters storage facilities with potato.Due to fumigant
The tissue of potato cannot be penetrated, therefore can not be close to larva.The target of fumigant must be after harvesting several days to several
The adult to sprout wings from potato during month.Therefore, fumigant must continuously discharge the several months after application.
Vahid Mahdavi etc. (2017) uses PVA nanofiber as Ceylon cinnamon (C.zeylanicum) essential oil
Controlled release carrier controls phthorimaea operculella (P.operculella).But they do not test other native compounds, it should
Preparation has 47 days field service life under the conditions of its experiment.We repeat their experiment, but not can prove that and made using cinnamic acid
For the effect of fumigant.
Wu Mei etc. (2017) shows to be fumigated with 1.38 grams of asarum whole plant materials of every lift-off gas, can kill
85% phthorimaea operculella (P.operculella).But rely on the fumigant of plant material, it is impossible to keep within some months
Effective control to phthorimaea operculella in storage.
Therefore, the method for the new achievable continuous and effective prevention and treatment phthorimaea operculella of exploitation is needed.
Summary of the invention
The object of the present invention is to provide application of the allyl isothiocyanate in prevention and treatment phthorimaea operculella.
It is a further object of the present invention to provide a kind of insecticide composition and its controlled release system and applications.
The study found that allyl isothiocyanate and valeral, hexanal, enanthaldehyde, octanal, E-2- hexenoic aldehyde, Z-3- hexenoic aldehyde, benzene
Formaldehyde, anisaldehyde and salicylaldehyde are effective fumigant of phthorimaea operculella at low concentrations., it is surprising that different sulphur
Some combinations of cyanic acid allyl ester and aldehyde have synergistic function for prevention and treatment phthorimaea operculella.It finds accordingly, building control
Release system processed, and a series of polymer are tested, develop the capsule and capillary controlled-release device of sealing.In addition, also developing
For the sealing pouch of these compounds, particle, candle wick bottle and atomizer as controlled-release device.
In order to achieve the object of the present invention, in a first aspect, the present invention provides allyl isothiocyanate in prevention and treatment potato tubers
Application in moth.
Second aspect, the present invention provide a kind of preparation (fumigant) for preventing and treating phthorimaea operculella, and effective component is
Allyl isothiocyanate.
The third aspect, the present invention provide a kind of insecticide composition, and effective component is allyl isothiocyanate and aldehydes
Object is closed, wherein allyl isothiocyanate and aldehyde can play the role of synergist each other.
The aldehyde compound be aliphatic or aromatic aldehyde, selected from valeral, hexanal, enanthaldehyde, octanal, aldehyde C-9, E-2- oneself
At least one of olefine aldehydr, Z-3- hexenoic aldehyde, benzaldehyde, anisaldehyde, salicylaldehyde, preferably octanal, benzaldehyde, valeral, oneself
Aldehyde, aldehyde C-9, anisaldehyde.
In insecticide composition of the invention, the weight ratio of allyl isothiocyanate and aldehyde compound is 1-99: 1-99.
Further, the weight ratio of allyl isothiocyanate and octanal is 1-9: 9-1, preferably 1: 9,1: 1,9: 1.
The weight ratio of allyl isothiocyanate and benzaldehyde is 1: 1.
The weight ratio of allyl isothiocyanate and valeral is 1: 1.
The weight ratio of allyl isothiocyanate and hexanal is 1: 1.
The weight ratio of allyl isothiocyanate and aldehyde C-9 is 1: 1.
The weight ratio of allyl isothiocyanate and anisaldehyde is 1: 1.
Fourth aspect, the present invention provide the controlled release system of the preparation or insecticide composition, and the controlled release system is such as
Under 1.~any of 4.:
1. controlled release capsule: the seal capsule containing the preparation or insecticide composition；
2. sustained-release granular formulation；It is adsorbed with the particulate inert carrier of the preparation or insecticide composition；
3. candle wick bottle, vapourizing unit (such as sprayer, atomizer) or pipe (capillary), hermetic bag；
4. the preparation or insecticide composition and the supplementary product compatibility that can reduce its effective component rate of release is resulting
Sustained release agent.
Wherein, the material of the capsule is permeable thermoplastic polymer, is selected from high density polyethylene (HDPE), low density polyethylene
Alkene, linear low density polyethylene, ethylene vinyl acetate, polyvinyl chloride, thermoplastic polyurethane, polyethers/amide block copolymers
At least one of, preferred polyvinyl chloride.
The particulate inert carrier is mineral or plant base carrier, is selected from kaolin, bentonite, atlapulgite, Hai Pao
Stone, White Carbon black, diatomite, precipitated calcium carbonate, talcum powder, the plaster of paris, chalky soil, clay, montmorillonite, clay, high-purity soil, wood
At least one of powder, bamboo powder, corn ear, preferably vermiculite.
In the present invention, the partial size of the particulate inert carrier is 0.1-10.0mm, preferably 2.1-3.0mm.
Further, the surface of the sustained-release granular formulation is equipped with coating layer, and coated fertilizer is selected from polyethylene oxide, poly- second two
The polymer of at least one of alcohol, stearic acid, paraffin, rosin or other releasable effective components.The coating material
Expect preferred polyethylene oxide.
Wherein, the weight ratio of the insecticide composition, particulate inert carrier and coated fertilizer is 1-50: 50-90: 5-
10, preferably 35: 57.5: 7.5.
In the specific embodiment of the present invention, the sustained-release granular formulation is by 55% vermiculite, 35% isothiocyanic acid
Allyl ester and 10% polyethylene oxide (MW=5,000,000) composition.
The specific production method of the sustained-release granular formulation are as follows: allyl isothiocyanate and vermiculite are mixed, work is stirred evenly
For core material, after polyethylene oxide heating melting, even application in core surfaces to obtain the final product.
5th aspect, the present invention provide the preparation, insecticide composition or the controlled release system in prevention and treatment potato ball
Application in stem moth.
It is specific to fumigate in application, the dosage of the allyl isothiocyanate is 0.8g/m3More than, the dosage of aldehyde compound
For 1.6g/m3More than.
When the insecticide composition or the effective component of controlled release system are allyl isothiocyanate and octanal, different sulphur cyanogen
The dosage of allyl propionate is 1.2-4.8g/m3, the dosage of octanal is 1.2-9.6g/m3.The two preferable amount ratio is 1: 1 (quality
Than).
When the insecticide composition or the effective component of controlled release system are allyl isothiocyanate and benzaldehyde, different sulphur
The dosage of cyanic acid allyl ester is 2.4-4.8g/m3, the dosage of benzaldehyde is 2.4-19.2g/m3.The two preferable amount ratio is 1: 1
(mass ratio).
When the insecticide composition or the effective component of controlled release system are allyl isothiocyanate and valeral, different sulphur cyanogen
The dosage of allyl propionate is 1.2-4.8g/m3, the dosage of valeral is 1.2-9.6g/m3.The two preferable amount ratio is 1: 1 (quality
Than).
When the insecticide composition or the effective component of controlled release system are allyl isothiocyanate and hexanal, different sulphur cyanogen
The dosage of allyl propionate is 1.2-4.8g/m3, the dosage of hexanal is 2.4-9.6g/m3.The two preferable amount ratio is 1: 1 (quality
Than).
When the insecticide composition or the effective component of controlled release system are allyl isothiocyanate and aldehyde C-9, different sulphur cyanogen
The dosage of allyl propionate is 1.2-4.8g/m3, the dosage of aldehyde C-9 is 1.2-9.6g/m3.The two preferable amount ratio is 1: 1 (quality
Than).
When the insecticide composition or the effective component of controlled release system are allyl isothiocyanate and anisaldehyde, different sulphur
The dosage of cyanic acid allyl ester is 2.4-4.8g/m3, the dosage of anisaldehyde is 2.4-19.2g/m3.The two preferable amount ratio is 1: 1
(mass ratio).
Preparation, insecticide composition and controlled release system provided by the present invention for preventing and treating phthorimaea operculella are suitable for having
The space or interior of limit use in open space, fumigate condition are as follows: 5-30 DEG C of temperature.
By above-mentioned technical proposal, the present invention at least have following advantages and the utility model has the advantages that
Fumigant, insecticide composition and controlled release system provided by the invention are good to the control efficiency of phthorimaea operculella,
Can long-acting control insect pest, reduce times for spraying, reduce drug cost.Be used alone allyl isothiocyanate or with certain aldehyde
Combination can effectively control phthorimaea operculella, and the lasting period is up to 3 months.Also, allyl isothiocyanate and aldehyde is some
Combination has synergistic function for prevention and treatment phthorimaea operculella.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..Unless otherwise specified, embodiment
Used in the conventional means that are well known to those skilled in the art of technological means, raw materials used is commercial goods.
The percentage sign " % " being related in the present invention refers to mass percent if not specified；But the percentage of solution
Than unless otherwise specified, referring to the grams in 100mL solution containing solute.
Embodiment 1 is used to prevent and treat the fumigant of phthorimaea operculella
Original research concentrates on phthorimaea operculella adult and potentially stifling immunomodulator compounds, these compounds may fit
Cooperation is the fumigant of this pest.10 moths are put into 1.2 liters of vials, and places a fritter sponge in bottle and contains
The 10% honey solution of 2ml.Jar is closed with cotton gauze lid and rubber band, by 2cm2Filter paper be placed on the top of gauze, and
Prevent moth is from being in direct contact with it.The ethanol solution that 10 microlitres of candidates fumigate immunomodulator compounds is dripped on filter paper.Liquid is inhaled
It receives on filter paper and will not be dropped into vial.After drops is placed on filter paper, metal cover seal glass is used immediately
Tank, without removing gauze.The death rate of moth after observation 1,2,24 hour.In this way, a series of can be used as is screened
The potentiality compound (table 1) of phthorimaea operculella fumigant.The predose of selection is the smoked of 2 microlitres of headroom of every 1.2 lift-off
Steam agent.Those place 2 microlitres of fumigant in every 1.2 lift-off headroom, and the candidate that high mortality is not caused after 24 hours is stifling
Immunomodulator compounds will be excluded except the range further considered (table 2).
Table 1 tests the compound of the potential controlling agent as phthorimaea operculella
| Compound |
| Allyl isothiocyanate |
| Valeral |
| Hexanal |
| Enanthaldehyde |
| Octanal |
| Aldehyde C-9 |
| E-2- hexenoic aldehyde |
| Z-3- hexenoic aldehyde |
| Benzaldehyde |
| Anisaldehyde |
| Cinnamic acid |
| Salicylaldehyde |
| Gaultherolin |
| Methyl benzoate |
| Cineole |
| Thymol |
| Carvacrol |
| Linalool |
| Geraniol |
Table 2 is exposed to the death rate (the potential control of phthorimaea operculella of the phthorimaea operculella of various compound fumigant
The results of preliminary screening of preparation)
Note: R1, R2, R3 refer to that every group repeats three times.Similarly hereinafter.
According to result above, chooses allyl isothiocyanate, valeral, hexanal, octanal, aldehyde C-9, benzaldehyde and anisaldehyde and do
Further research.
Using identical experimental provision, Section 2 research tests the fumigant of relatively low-dose, with this come determine its effectively
Concentration level.Concrete operations are as follows: 1.5,1.0,0.5 and 0.25 microlitres of dosage of 1.2 liters of tanks of test；After only recording 24 hours
The death rate.It the results are shown in Table 3.
The death rate of the moth of various compounds is done in the exposure of table 3 (dosage for the target compound picked out is tested)
According to result above, chooses allyl isothiocyanate and octanal makes further research.Test most effective may be selected
Combination, and determine exist synergistic effect.It the results are shown in Table 4.
Table 4 is exposed to the death rate (the dosage survey of compound combination of the phthorimaea operculella of various compounds and mixture
Examination)
Note: the % occurred in table is the white score of quality.Similarly hereinafter.
As can be seen that in the model of 90% allyl isothiocyanate, 10% octanal to 10% allyl isothiocyanate, 90% octanal
In enclosing, there are synergistic functions between allyl isothiocyanate and octanal, and the combination has in 0.5 milligram/1.2 liters of tank
Effect.
Further test the combination of allyl isothiocyanate He other aldehydes.It the results are shown in Table 5.
The test of the different rhodanine allyl ester of table 5 and the combination of other aldehydes
Judging from the experimental results, allyl isothiocyanate is respectively with valeral, hexanal, aldehyde C-9, benzaldehyde and anisaldehyde with 50:
50 combination matching can play good control efficiency to phthorimaea operculella, and compound combination is than being used alone
Allyl isothiocyanate is effective.
2 fumigant controlled release system of embodiment
The present embodiment is that fumigant develops some fumigant controlled release systems all to play a role in all cases.It is developed
Controlled release system will maintain the fumigant of every about 1 milligram of headroom of lift-off horizontal in the potato of stacking bag, the lasting period is up to 2
To 3 months.
1, controlled release capsule
Test many polymer capsules, it is therefore an objective to develop suitable for handling bagged potato storage simple warehouse
Controlled release system.These capsules will be placed on sack before potato is deposited in warehouse, continue 2 to 3 months.This capsule is by polymerizeing
Property management composition, conjunction has suitable fumigant mixture, and is sealed against and is cut into suitable length.The polymer of test is high
Density polyethylene, low density polyethylene (LDPE), linear low density polyethylene, ethylene vinyl acetate and their combination and polychlorostyrene
Ethylene, thermoplastic polyurethane and polyethers/amide block copolymers (PEBAX).By 4 millimeters of internal diameters, 0.5 millimeter of wall thickness and 100 millis
The long pipe fitting of rice is packed into 1 milliliter of allyl isothiocyanate and seals.Under the conditions of ready-made capsule is placed in 21 DEG C~25 DEG C, and it is every
Week is weighed with assay balance, measures 3 months or until capsule is emptying.Experimental result is shown in Table 6.For being suitable for isothiocyanic acid allyl
Those of ester polymer is equally packed into valeral, octanal and benzaldehyde in capsule and is tested, the results are shown in Table 7.
Rate of release of the table 6 from the variety classes polymer capsule of sealing release allyl isothiocyanate
As can be seen that PVC, LDPE and LDPE/EVA are the most suitable polymer for this controlled release capsule, wherein needing
It to use multiple Caplets (such as every bag one or two).When large-scale ventilation equipment are used for the gas stream of potato storage facility
When dynamic, EVA, TPU and PEBAX will be useful.
A series of rate of release of aldehyde of 7 sealed polymer capsule of table
As can be seen that the best polymer of controlled release capsule is PVC, it is most like with the rate of release of allyl isothiocyanate
Aldehyde is octanal.The combination, which has, discharges the effectiveness of substantially similar ratio in the their entire life of capsule control release device.
2, sustained-release granular formulation
It is granular preparation by another method that the desired amount of fumigant is transmitted to the potato in storage.Suitable controlled release
Particle can be dispersed on the potato bag of stacking, and particle can be fallen in sack, some can fall on the lower part of stacking, and fumigant steams
Gas will transmit through potato heap and be diffused into air.This release system can answer in the warehouse for having stacked potato bag
With, but have the shortcomings that the lasting period is short, it needs to reuse.For this purpose, with polyethylene oxide coating (PEO, MW 5,000,
000) mineral carrier (vermiculite) and two kinds of plant base carriers (whitewood's powder and bamboo powder) are tested.Polyethylene oxide coating accounts for particle weight
10%.Respectively by 35% allyl isothiocyanate be added mineral base carrier, 25% allyl isothiocyanate be added wood powder,
20% allyl isothiocyanate is added in bamboo powder base particle.BHT antioxidant is mixed into isothiocyanic acid allyl with 2% concentration
In ester.The specific production method of the sustained-release granular formulation are as follows: mix allyl isothiocyanate, antioxidant and vermiculite, stirring
Uniformly be used as core material, after polyethylene oxide heating melting, even application in core surfaces to obtain the final product.
It at room temperature by exposing 10 grams of samples respectively in open culture dish, and weighs, weighs on assay balance within 2 days
Once, accuracy is 0.1 milligram, until particle exhausts, the rate of release of three kinds of particle sizes is measured with this.It the results are shown in Table 8.
Table 8 releases the feelings of allyl isothiocyanate in the controlled release granule from polymer support and with polymer coating
Condition
As can be seen that vermiculite carrier has higher load capacity and longer field in terms of discharging allyl isothiocyanate
Between the lasting period.Biggish particle has the longer lasting period.Polymer beads have lower load capacity, and validity is lower.
Allyl isothiocyanate is replaced to carry out similar test using octanal in granular preparation.It the results are shown in Table 9.
Table 9 releases octanal from the particulate vector with polymer coating
As can be seen that vermiculite carrier has higher load capacity and longer field lasting period in terms of discharging octanal.
Biggish particle size has the longer lasting period.The rate of release of octanal is slower than allyl isothiocyanate.
3, the release rate of candle wick bottle is tested
In the large-scale potato storage room moved with forced air, using candle wick bottle or pulsing atomizer by fumigant
It is discharged into air stream, it can be with practical operation.Test has cotton tooth core (diameter 8mm, length of exposure 10mm and 20mm)
Candle wick bottle with a series of rate of release of candidate fumigant of determination.Bottle containing 10 milliliters of fumigant is exposed to room temperature
Under, weighing is primary daily, continuous weighting 5 days, is accurate to 0.1 milligram using assay balance measurement.It the results are shown in Table 10.
Table 10 discharges candidate fumigant from candle wick bottle
As can be seen that candle wick bottle controlled release system can discharge a large amount of reactive compounds, suitable for the air large warehoused
The circulatory system.Depend on exposing the length of cotton core in air for the burst size of specific compound.The release of candle wick bottle continues
Time depends on the fill level of fumigant.
4, test (test I) of the controlled release capsule to phthorimaea operculella control effect under storage environment is simulated
In order to determine the actual efficacy of developed preparation, the potato of storage is ground under room temperature (about 20 DEG C)
Study carefully.Take 30 cartons (30cm × 30cm × 40cm=12 lift-off headroom), 10 kilograms of potatos of placement, general energy in each
Put half box.One polyvinyl chloride controlled release capsule (is equipped with 1 gram of fumigant, 11) ingredient, which is shown in Table, is sticked to box cover with adhesive tape in the following, 5 kinds
Processing, 5 repetitions of every kind of processing.Without placing capsule in 5 box covers as control.Moth is cooling in refrigerator, then often
It is put into a box in 20 culture dishes above potato.Box is sealed 40 days, then they are opened and checks horse
Bell potato is with the presence or absence of phthorimaea operculella activity.It the results are shown in Table 11.
Allyl isothiocyanate, aldehyde mixture in 11 simulating storage condition of table control release capsule is to the horse on potato
The effect of bell potato wedge stem moth adult
| It handles (milligram/controlled release capsule) | The rate that causes harm that is averaged of phthorimaea operculella |
| Control-non-treated | 39% |
| Allyl isothiocyanate (1000 milligrams) | 0% |
| Allyl isothiocyanate: octanal (500: 500 milligrams) | 0% |
| Allyl isothiocyanate: benzaldehyde (500: 500 milligrams) | 0% |
| Benzaldehyde (1000 milligrams) | 12% |
| Octanal (1000 milligrams) | 4% |
It can be seen that allyl isothiocyanate, allyl isothiocyanate-octanal and allyl isothiocyanate-benzaldehyde pair
It is highly effective to control phthorimaea operculella adult, octanal is used alone and benzaldehyde control effect is poor.
5, test (test II) of the controlled release granule to phthorimaea operculella control effect under storage environment is simulated
10 kilograms of potatos are respectively put into 20 cartons.Each carton can probably put half box.0.25 gram of vermiculite: polycyclic
Oxidative ethane coating (MW 5,000,000) particle (loads 0.35 gram gram, 12) component list is shown in Table, 3 processing, every kind is handled 3 times
It repeats.Wherein there is no controlled release granule inside 3 boxes, as control.Moth is cooling in refrigerator, then it is put into each box
In 20 culture dishes above potato.Box is sealed 40 days, then they are opened and checks that potato whether there is
Phthorimaea operculella activity.It the results are shown in Table 12.
The controlled release granule of 12 compound of table and mixture tests the control effect of phthorimaea operculella in simulation storage
| It handles (milligram/every case contains active constituent) | The rate that causes harm that is averaged of phthorimaea operculella |
| Control-non-treated | 58.4% |
| Allyl isothiocyanate (88 milligrams) | 0.0% |
| Allyl isothiocyanate: octanal (44: 44 milligrams) | 0.0% |
| Allyl isothiocyanate: benzaldehyde (44: 44 milligrams) | 0.0% |
| Allyl isothiocyanate: glutaraldehyde (44: 44 milligrams) | 23.8% |
As can be seen that the controlled release granule of all processing groups has preferable effect to phthorimaea operculella under the experiment condition
Fruit.
6, phthorimaea operculella control effect is tested using candle wick bottle release system in simulating storage environment
Fumigant is discharged into the air stream by potato by candle wick bottle using the device to test for being similar to test II
Experiment, rather than use granule as release system.Respectively in two 5 liters of bucket, the rate with 2 liters/min passes through
The pvc pipe pumped air of one 6mm internal diameter.20 milliliters of stifling agent solutions and 10 millimeters of aerial candles of cotton core exposure will be contained
Core bottle is put into the bottom of a bucket.Another bucket is not provided with candle wick bottle, as control.It is stayed after each barrel of sealing there are four outlet,
Its form is that 4mm internal diameter tube is inserted into the hole of each box, and carton uses rubber belt sealing.Net flow is 0.5 liter per minute stifling
Agent gas.Moth after cooling, is put into 20 in the culture dish on potato top in refrigerator in each box.Box is sealed
40 days, then they are opened and checks potato with the presence or absence of phthorimaea operculella activity.It the results are shown in Table 13.
The air stream of 13 compound of table and mixture tests the control effect of phthorimaea operculella in simulation storage
| Processing | The rate that causes harm that is averaged of phthorimaea operculella |
| Control-non-treated | 61.2% |
| Allyl isothiocyanate 100% | 0.0% |
| Allyl isothiocyanate: octanal 50: 50, mass ratio | 0.0% |
| Allyl isothiocyanate: benzaldehyde 50: 50, mass ratio | 0.0% |
As can be seen that all processing groups are all effective to phthorimaea operculella under the experiment condition.
Synergistic function of the composition of 3 AITC of embodiment and specific aldehydes to prevention and treatment phthorimaea operculella
Experiment purpose: with the AITC of low dosage and two kinds of aldehydes (octanal and anisaldehyde) and the chemical combination of these types of low dosage
Whether object, measurement AITC and aldehyde compound occur synergistic function.
Experimental method: pass through candle wick bottle in the air stream by fumigant with the device to test for being similar to the test of embodiment 2 II
It is discharged into the carton for being placed with potato.Respectively in two 5 liters of bucket, passed through in a 6mm with 2 liters/min of rate
The pvc pipe pumped air of diameter.It will be put into containing 20 milliliters of stifling agent solutions and 10 millimeters of aerial candle wick bottles of cotton core exposure
The bottom of one carton.Another carton is not provided with candle wick bottle, as control.It stays after each carton sealing there are four outlet,
Form is that 4mm internal diameter tube is inserted into the hole of each box, carton rubber belt sealing.Net flow is 0.5 liter of fumigant gas per minute
Body.30 phthorimaea operculellas are put into each box in the culture dish on potato top.After box is sealed 24 hours,
It opens box and checks for phthorimaea operculella activity.It the results are shown in Table 14.
The synergistic function of table 14 AITC and aldehyde compound
Experimental result: as can be seen from Table 14, the composition of AITC and the aliphatic and aromatic aldehyde that filter out, according to horse
The death rate of bell potato wedge stem moth may determine that synergistic effect and synergistic function between composition.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be modified or is improved, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. application of the allyl isothiocyanate in prevention and treatment phthorimaea operculella.
2. insecticide composition, which is characterized in that effective component is allyl isothiocyanate and aldehyde compound；Wherein, described
Aldehyde compound is selected from valeral, hexanal, enanthaldehyde, octanal, aldehyde C-9, E-2- hexenoic aldehyde, Z-3- hexenoic aldehyde, benzaldehyde, anisaldehyde, neighbour
At least one of hydroxyl benzaldehyde, preferably octanal, benzaldehyde, valeral, hexanal, aldehyde C-9, anisaldehyde.
3. composition according to claim 2, which is characterized in that the weight ratio of allyl isothiocyanate and aldehyde compound
It is 1-99: 1-99.
4. composition according to claim 3, which is characterized in that the weight ratio of allyl isothiocyanate and octanal is 1-9:
9-1, preferably 1: 9,1: 1,9: 1；And/or
The weight ratio of allyl isothiocyanate and benzaldehyde is 1: 1；And/or
The weight ratio of allyl isothiocyanate and valeral is 1: 1；And/or
The weight ratio of allyl isothiocyanate and hexanal is 1: 1；And/or
The weight ratio of allyl isothiocyanate and aldehyde C-9 is 1: 1；And/or
The weight ratio of allyl isothiocyanate and anisaldehyde is 1: 1.
5. the controlled release system of any one of the claim 2-4 insecticide composition, which is characterized in that the controlled release system is such as
Under 1.~any of 4.:
1. controlled release capsule: the seal capsule containing the insecticide composition；
2. sustained-release granular formulation；It is adsorbed with the particulate inert carrier of the insecticide composition；
3. candle wick bottle, vapourizing unit or pipe, hermetic bag；
4. by the insecticide composition and the resulting sustained release agent of supplementary product compatibility that its effective component rate of release can be reduced.
6. controlled release system according to claim 5, which is characterized in that the material of the capsule is permeable thermoplastic poly
Close object, selected from high density polyethylene (HDPE), low density polyethylene (LDPE), ethylene vinyl acetate, polyvinyl chloride, thermoplastic polyurethane, polyethers/
At least one of amide block copolymers, preferably polyvinyl chloride.
7. controlled release system according to claim 5, which is characterized in that the particulate inert carrier is mineral or plant base
Carrier, selected from vermiculite, kaolin, bentonite, atlapulgite, sepiolite, White Carbon black, diatomite, precipitated calcium carbonate, talcum powder,
At least one of the plaster of paris, chalky soil, clay, montmorillonite, clay, high-purity soil, wood powder, bamboo powder, corn ear, preferably vermiculite.
8. controlled release system according to claim 7, which is characterized in that the partial size of the particulate inert carrier is 0.1-
10.0mm, preferably 2.1-3.0mm.
9. according to the described in any item controlled release systems of claim 5-8, which is characterized in that the surface of the sustained-release granular formulation is equipped with
Coating layer, coated fertilizer are selected from least one of polyethylene oxide, polyethylene glycol, stearic acid, paraffin, rosin, preferably polycyclic
Oxidative ethane；
Wherein, the weight ratio of the insecticide composition, particulate inert carrier and coated fertilizer is 1-50: 50-90: 5-10,
Preferably 35: 57.5: 7.5.
10. any one of any one of the claim 2-4 insecticide composition or claim 5-9 controlled release system is being prevented and treated
Application in phthorimaea operculella.
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| WO2023175616A1 (en) * | 2022-03-14 | 2023-09-21 | Migal Galilee Research Institute Ltd. | Pesticidal compositions comprising pentanal and uses thereof |
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