CN106490037A - A kind of plant source fumigant and preparation method thereof - Google Patents
A kind of plant source fumigant and preparation method thereof Download PDFInfo
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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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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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
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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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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Abstract
The invention discloses a kind of plant source fumigant, including the raw material of following parts by weight：20 30 parts of grass-leaved sweetflag, 20 30 parts of rue, 15 20 parts of Phytolacca acinosa, 15 20 parts of banksia rose Ru, 15 20 parts of narrow leaved tea tree, 15 20 parts of Chinese cassia tree, 38 parts of dispersant, 80 100 parts of carrier, 2 10 parts of binding agent, 15 parts of preservative.For plant, wide material sources have complementary advantages between environmental protection, and various raw materials the raw material that the fumigant is adopted, and significantly, noresidue is easy to use, and the term of validity is long for insecticidal effect.
Description
Technical field
The present invention relates to biological pesticide technical field, more particularly, to a kind of plant source fumigant and preparation method thereof.
Background technology
A lot of storage pests, such as sitophilus zea-mais, lesser grain borer, red flour beetle, Callosobruchus chinensis, wheat pretty young woman and rice occur in storage Cereals
As etc., these insects are small, and reproductive capacity is strong, and harm is very big, such as can increase injured kernel, grain grain ruptured, crush, eaten hollow,
So as to cause grain to be lost during storage in a large number；Reduce germination percentage, damage agricultural production；Cause grain heating, go mouldy；Separately
Outer insect secretion, excrement can also pollute grain, affect health, these situations cause serious economic loss.By
In the space that storage Cereals is usually closed, and insect small volume, it is mixed in the middle of grain, therefore the insecticide one of storage pest
As based on stifling, commonly used in the prior art is compounds such as oxirane, hydrogen phosphide and bromine potassium alkane and with DDVP etc.,
These chemical pesticide toxicity are big, and residual is high, can affect health, and develop environment-friendly and green, the plant source of good biocompatibility
Fumigant tool has very important significance.
Chinese Patent Application No. 201110358540.3 disclose in a kind of silo raw grain grain storage pest essential oil insecticide and
Its preparation method, by following components and percentage by weight array into：Kuh-seng：10%-35%, chinaberry：10%-50%, the tuber of stemona：5%-
35%, Extraction solvent：25%-30%, dispersant：5%-20%, the root of langdu：3%-20%, wintergreen：10%-50%.The raw material of the invention
For tagging, fumigating effect is weak for a part of insecticidal mechanism, and reserves insect polydispersion is in Cereals, and actual insecticidal effect is weak.China
Number of patent application 201510889588.5 discloses a kind of application of narrow leaved tea tree essential oil on preventing and treating grain storage pest, and mutual leaf is white
A kind of application of the thousand layers of essential oil as plant pesticide on preventing and treating grain storage pest, belongs to biological technical field.The invention combines grain
Food storage produce reality, grain storage pest confused flour beetle and sitophilus zea-mais are carried out repellent, tag, fumigation action, the model of desinsection species
Enclose weaker, in addition the term of validity of the essential oil class products application on grain storage pest is shorter.
Content of the invention
In view of this, the purpose of the present invention is for the deficiencies in the prior art, there is provided a kind of plant source fumigant, and this is fumigated
For plant, wide material sources have complementary advantages between environmental protection, and various raw materials the raw material that agent is adopted, and insecticidal effect is notable, nothing
Residual, easy to use, the term of validity is long.
In addition, present invention also offers the preparation method of plant source fumigant.
For reaching above-mentioned purpose, the present invention is employed the following technical solutions：
A kind of plant source fumigant, including the raw material of following parts by weight：Grass-leaved sweetflag 20-30 parts, rue 20-30 parts, Phytolacca acinosa 15-
20 parts, banksia rose Ru 15-20 parts, narrow leaved tea tree 15-20 parts, Chinese cassia tree 15-20 parts, dispersant 3-8 parts, carrier 80-100 parts, viscous
Knot agent 2-10 parts, preservative 2-4 parts.
Further, including the raw material of following parts by weight：25 parts of grass-leaved sweetflag, 26 parts of rue, 18 parts of Phytolacca acinosa, banksia rose Ru 17
Part, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 6 parts of dispersant, 95 parts of carrier, 5 parts of binding agent, 3 parts of preservative.
Further, the dispersant is neopelex, APES and sodium lignin sulfonate
In one kind.
Further, the carrier is the one kind in kaolin, bentonite, white carbon and concave convex rod.
Further, the binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes
Conjunction is formed.
Further, the preservative is the one kind in Sodium Benzoate, Kathon CG and sorbic acid.
A kind of preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 40-60 mesh, Ran Houjia is crushed to
After entering the water immersion 2-3h of 6-10 times of weight, 5-8h is extracted using steam distillation distillation, the volatile oil for distilling out is collected, so
After adding anhydrous sodium sulfate dehydration afterwards, extract is obtained；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 1-2 times of weight is added to obtain
Slurry is arrived, the slurry is granulated, is dried to obtain granule；
（3）By granule compressing tablet, product is prepared.
Further, the step（2）Middle baking temperature is 45-55 DEG C, gained granule water content≤1%.
The invention has the beneficial effects as follows：
1st, the raw material that adopts of plant source fumigant that prepared by the present invention for plant, wide material sources.Volatile oil wherein in grass-leaved sweetflag
To sitophilus zea-mais, lesser grain borer, red flour beetle and brown paddy plant hopper etc. with very strong stifling and action of contace poison；Volatile oil in rue is to red
Intend ostomatid and L. paeta has very strong fumigation action；Volatile oil in Phytolacca acinosa has very strong to red flour beetle, sitophilus zea-mais
Stifling, action of contace poison and population inhibition；Volatile oil in banksia rose Ru has very strong smoked to sitophilus zea-mais and red flour beetle
Steam, tag and population inhibition.And the volatile oil in Chinese cassia tree is not only to red flour beetle, lasioderma serricorne and mosquito etc. with very strong
Fumigation action, and and to aspergillus flavus, aspergillus niger, withered mould have very strong inhibitory action；Extract in narrow leaved tea tree
Tea oil has very strong stifling and action of contace poison to lasioderma serricorne and red flour beetle, and phytopathogen and mould are had
Very strong inhibitory action；Therefore the volatile oil for extracting in Chinese cassia tree and narrow leaved tea tree can not only strengthen the desinsection effect of other raw materials
Really, also to silo in mould and pathogen have very strong inhibitory action；The volatile oil compounding that this several raw material is extracted makes
With the killing pests and suppressing bacteria scope of the fumigant has been expanded in mutual supplement with each other's advantages.
2nd, the present invention is extracted to plant source raw material, is to increase recovery rate, is reduced loss of volatile oil, employs water steaming
Steam distillation method, recovery rate are high, and volatile ingredient loss is little.
3rd, the present invention prepare plant source fumigant using in kaolin, bentonite, white carbon and concave convex rod a kind of as
Active component can be locked in the carrier, reduce activity in preparation process than larger by carrier, this several carrier inner ratio surface area
The loss of composition, extends the term of validity of product；With neopelex, APES and sodium lignin sulfonate
For dispersant, active component can be made to be well mixed with carrier, so as to increase period of validity；In addition binding agent uses shallow lake
Powder, microcrystalline cellulose and polyvinylpyrrolidone are 1 by weight:2:1 is mixed with and forms, and the tablet of preparation is not easy tide
Solution, long shelf-life；But also with Sodium Benzoate, Kathon CG or sorbic acid as preservative, favorable anti-corrosion effect, shelf life of products are long.
4th, plant source fumigant prepared by the present invention is tablet, can be placed in Cereals, the term of validity after adopting gauze wrapped
Long, but also convenient recovery, Cereals will not be polluted.
5th, the stifling test data of storage pest shows that product of the present invention is to sitophilus zea-mais, lesser grain borer, red flour beetle and wheat pretty young woman
Corrected mortality is 90%-98%, and insecticidal effect is notable, and the term of validity is long, and without drug resistance, noresidue is pollution-free, preparation side
Method is simple, with low cost, easy to use.
Specific embodiment
The present invention is described further with reference to specific embodiment, the plant source raw material adopted in the present invention is newly
Fresh through dried raw material.
Embodiment 1
A kind of plant source fumigant, including the raw material of following parts by weight：20 parts of grass-leaved sweetflag, 30 parts of rue, 15 parts of Phytolacca acinosa, the banksia rose
20 parts of Ru, 15 parts of narrow leaved tea tree, 15 parts of Chinese cassia tree, 3 parts of dispersant, 80 parts of carrier, 2 parts of binding agent, 2 parts of preservative.
Wherein dispersant is neopelex.
Wherein carrier is kaolin.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is Sodium Benzoate.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 40 mesh is crushed to, is subsequently adding 6
After the water immersion 2h of times weight, 5h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects steaming
The volatile oil for distillating, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 1 times of weight is added to obtain
Slurry, the slurry is granulated, is dried to obtain granule, and wherein baking temperature is 45 DEG C, and gained granule water content is 0.2%；
（3）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Embodiment 2
A kind of plant source fumigant, including the raw material of following parts by weight：22 parts of grass-leaved sweetflag, 28 parts of rue, 16 parts of Phytolacca acinosa, the banksia rose
19 parts of Ru, 16 parts of narrow leaved tea tree, 16 parts of Chinese cassia tree, 4 parts of dispersant, 85 parts of carrier, 3 parts of binding agent, 3 parts of preservative.
Wherein dispersant is APES.
Wherein carrier is bentonite.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is Kathon CG.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 50 mesh is crushed to, is subsequently adding 7
After the water immersion 3h of times weight, 6h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects steaming
The volatile oil for distillating, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 2 times of weight is added to obtain
Slurry, the slurry is granulated, is dried to obtain granule, and wherein baking temperature is 55 DEG C, and gained granule water content is 0.2%；
（3）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Embodiment 3
A kind of plant source fumigant, including the raw material of following parts by weight：23 parts of grass-leaved sweetflag, 27 parts of rue, 17 parts of Phytolacca acinosa, the banksia rose
18 parts of Ru, 17 parts of narrow leaved tea tree, 17 parts of Chinese cassia tree, 5 parts of dispersant, 90 parts of carrier, 4 parts of binding agent, 4 parts of preservative.
Wherein dispersant is sodium lignin sulfonate.
Wherein carrier is white carbon.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is sorbic acid.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 60 mesh is crushed to, is subsequently adding 8
After the water immersion 2.5h of times weight, 7h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects
The volatile oil for distilling out, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 1 times of weight is added to obtain
Slurry, the slurry is granulated, is dried to obtain granule, and wherein baking temperature is 50 DEG C, and gained granule water content is 0.1%；
（3）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Embodiment 4
A kind of plant source fumigant, including the raw material of following parts by weight：25 parts of grass-leaved sweetflag, 26 parts of rue, 18 parts of Phytolacca acinosa, the banksia rose
17 parts of Ru, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 6 parts of dispersant, 95 parts of carrier, 5 parts of binding agent, 3 parts of preservative.
Wherein dispersant is neopelex.
Wherein carrier is concave convex rod.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is Sodium Benzoate.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 50 mesh is crushed to, is subsequently adding 9
After the water immersion 3h of times weight, 8h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects steaming
The volatile oil for distillating, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 1.5 times of weight is added to obtain
Slurry is arrived, the slurry is granulated, is dried to obtain granule, wherein baking temperature is 50 DEG C, and gained granule water content is
0.1%；
（3）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Embodiment 5
A kind of plant source fumigant, including the raw material of following parts by weight：25 parts of grass-leaved sweetflag, 26 parts of rue, 18 parts of Phytolacca acinosa, the banksia rose
17 parts of Ru, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 6 parts of dispersant, 95 parts of carrier, 5 parts of binding agent, 3 parts of preservative.
Wherein dispersant is neopelex.
Wherein carrier is concave convex rod.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is Sodium Benzoate.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 50 mesh is crushed to, is subsequently adding 9
After the water immersion 3h of times weight, 8h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects steaming
The volatile oil for distillating, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）Add water in beta-schardinger dextrin and dissolve at 50 DEG C, temperature adds said extracted thing after being down to 30 DEG C, stirs 1.5h, wherein
Extract is 1 with beta-schardinger dextrin and water weight ratio:10:20, then at 40 DEG C low temperature drying to constant weight, ground 40 mesh sieve,
Extract must be included；
（3）After inclusion extract, dispersant, carrier, binding agent and preservative are well mixed, add the water of 1.5 times of weight wet
Mill obtains slurry, the slurry is granulated, is dried to obtain granule, and wherein baking temperature is 50 DEG C, gained granule water content
For 0.1%；
（4）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Embodiment 6
A kind of plant source fumigant, including the raw material of following parts by weight：26 parts of grass-leaved sweetflag, 25 parts of rue, 19 parts of Phytolacca acinosa, the banksia rose
16 parts of Ru, 19 parts of narrow leaved tea tree, 19 parts of Chinese cassia tree, 7 parts of dispersant, 100 parts of carrier, 6 parts of binding agent, 4 parts of preservative.
Wherein dispersant is APES.
Wherein carrier is kaolin.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is Kathon CG.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 60 mesh is crushed to, is subsequently adding 10
After the water immersion 2h of times weight, 8h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects steaming
The volatile oil for distillating, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 2 times of weight is added to obtain
Slurry, the slurry is granulated, is dried to obtain granule, and wherein baking temperature is 45 DEG C, and gained granule water content is 0.3%；
（3）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Embodiment 7
A kind of plant source fumigant, including the raw material of following parts by weight：28 parts of grass-leaved sweetflag, 22 parts of rue, 20 parts of Phytolacca acinosa, the banksia rose
15 parts of Ru, 20 parts of narrow leaved tea tree, 20 parts of Chinese cassia tree, 8 parts of dispersant, 80 parts of carrier, 8 parts of binding agent, 2 parts of preservative.
Wherein dispersant is sodium lignin sulfonate.
Wherein carrier is bentonite.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is sorbic acid.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 40 mesh is crushed to, is subsequently adding 9
After the water immersion 3h of times weight, 7h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects steaming
The volatile oil for distillating, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 2 times of weight is added to obtain
Slurry, the slurry is granulated, is dried to obtain granule, and wherein baking temperature is 55 DEG C, and gained granule water content is 0.4%；
（3）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Embodiment 8
A kind of plant source fumigant, including the raw material of following parts by weight：30 parts of grass-leaved sweetflag, 20 parts of rue, 18 parts of Phytolacca acinosa, the banksia rose
15 parts of Ru, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 3 parts of dispersant, 85 parts of carrier, 10 parts of binding agent, 4 parts of preservative.
Wherein dispersant is APES.
Wherein carrier is white carbon.
Wherein binding agent is 1 for starch, microcrystalline cellulose and polyvinylpyrrolidone by weight:2:1 mixes.
Wherein preservative is Sodium Benzoate.
The preparation method of plant source fumigant, comprises the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 40 mesh is crushed to, is subsequently adding 8
After the water immersion 2h of times weight, 6h is extracted using steam distillation distillation, its medium velocity is 1-2 drops per second, then collects steaming
The volatile oil for distillating, after being subsequently adding appropriate anhydrous sodium sulfate dehydration, obtains extract；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 1 times of weight is added to obtain
Slurry, the slurry is granulated, is dried to obtain granule, and wherein baking temperature is 45 DEG C, and gained granule water content is 0.2%；
（3）It is 2.0g/ pieces by granule compressing tablet, specification, prepares product.
Comparative example 1
Comparative example 1 is substantially the same manner as Example 4, and difference is：Remove grass-leaved sweetflag and rue in raw material, accordingly increase business
Land and the amount of banksia rose Ru, i.e.,：A kind of plant source fumigant, including the raw material of following parts by weight：43 parts of Phytolacca acinosa, banksia rose Ru 43
Part, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 6 parts of dispersant, 95 parts of carrier, 5 parts of binding agent, 3 parts of preservative.
Its preparation method is same as Example 4.
Comparative example 2
Comparative example 2 is substantially the same manner as Example 4, and difference is：Remove Phytolacca acinosa and banksia rose Ru in raw material, accordingly increase stone
Calamus and the amount of rue, i.e.,：A kind of plant source fumigant, including the raw material of following parts by weight：42 parts of grass-leaved sweetflag, rue 44
Part, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 6 parts of dispersant, 95 parts of carrier, 5 parts of binding agent, 3 parts of preservative.
Its preparation method is same as Example 4.
Comparative example 3
Comparative example 3 is substantially the same manner as Example 4, and difference is：Remove rue and banksia rose Ru in raw material, accordingly increase stone
Calamus and the amount of Phytolacca acinosa, i.e.,：A kind of plant source fumigant, including the raw material of following parts by weight：51 parts of grass-leaved sweetflag, Phytolacca acinosa 35
Part, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 6 parts of dispersant, 95 parts of carrier, 5 parts of binding agent, 3 parts of preservative.
Its preparation method is same as Example 4.
Comparative example 4
Comparative example 4 is substantially the same manner as Example 4, and difference is：Remove narrow leaved tea tree and Chinese cassia tree in raw material, corresponding increasing
Plus the amount of grass-leaved sweetflag and banksia rose Ru, i.e.,：A kind of plant source fumigant, including the raw material of following parts by weight：43 parts of grass-leaved sweetflag, rue
Fragrant 26 parts, 18 parts of Phytolacca acinosa, 35 parts of banksia rose Ru, 6 parts of mutual leaf dispersant, 95 parts of carrier, 5 parts of binding agent, 3 parts of preservative.
Its preparation method is same as Example 4.
The stifling test of storage pest
Take 5000mL transparent vessels, wheat is placed in bottom, per bottle moves into 100 for examination insects, respectively with sitophilus zea-mais, lesser grain borer, red
Plan ostomatid and wheat pretty young woman are conducted batch-wise test as examination insect is supplied, every kind of for examination insect test 100.By embodiment 1-8 and
1 plant source fumigant prepared by comparative example 1-4 is placed in wheat, and by container closure, test every time is repeated 3 times, and is placed on
During temperature is for 26 ± 1 DEG C of incubator, dead borer population and borer population living is observed and is recorded after five days, wherein polypide, worm is stirred with writing brush
Body is motionless to be death, and calculates the death rate；Plant source fumigant is not placed using in wheat as control, calculates correction dead
Rate, as a result as shown in table 1.In addition, for the term of validity length for verifying product of the present invention, by the embodiment of the present invention 4 and embodiment 5
After the product sealing of preparation is placed 2 years, the stifling test of above-mentioned storage pest is carried out, and is made so that fumigant is not placed in wheat
For compareing, result of the test is shown in Table 2.
The wherein death rate（%）=dead borer population/total borer population × 100%
Corrected mortality（%）=（Process the death rate-control death rate）/（1- compares the death rate）×100%
1 storage pest of table fumigates test data
2 storage pest term of validity test data of table
By Tables 1 and 2 as can be seen that the plant source fumigant of embodiment of the present invention 1-8 preparation is to common storage pest corn
As the corrected mortality of, lesser grain borer, red flour beetle and wheat pretty young woman is in 90-98%, insecticidal effect is notable.Embodiment 4 and embodiment 5
Product is 86-93% to the corrected mortality of sitophilus zea-mais, lesser grain borer, red flour beetle and wheat pretty young woman after placing 2 years, and the term of validity is long, does not have
There is residual, pollution-free.
And embodiment 5 is identical with 4 condition of embodiment, difference is to wrap active component using beta-schardinger dextrin
Close, then prepare piece agent, but embodiment 5 and the insecticidal effect indifference of embodiment 4, illustrate using beta-schardinger dextrin to having
The active component of insecticidal action is included, and does not affect the insecticidal activity of medicament.From table 2 it can be seen that embodiment 5 after 2 years
Product higher than embodiment 4, illustrates that the inclusion of beta-schardinger dextrin has slow releasing function, extends product to the corrected mortality of insect
The term of validity.
Comparative example 1-4 difference from Example 4 is to adjust raw material, and comparative example 1 removes grass-leaved sweetflag and rue
Perfume (or spice), comparative example 2 remove Phytolacca acinosa and banksia rose Ru, and comparative example 3 removes rue and banksia rose Ru, and comparative example 4 removes narrow leaved tea tree and meat
Osmanthus, and raw material total amount keeps constant, but as can be seen from Table 1, the insecticidal effect of comparative example 1-4 is weaker than embodiment 4, says
The bright various raw materials for preparing product of the present invention have Synergistic insecticidal effect.
Finally illustrate, only in order to technical scheme to be described and unrestricted, this area is common for above example
Other modifications or equivalent that technical staff is made to technical scheme, without departing from technical solution of the present invention
Spirit and scope, all should cover in the middle of scope of the presently claimed invention.
Claims (8)
1. a kind of plant source fumigant, it is characterised in that：Raw material including following parts by weight：Grass-leaved sweetflag 20-30 parts, rue
20-30 parts, Phytolacca acinosa 15-20 parts, banksia rose Ru 15-20 parts, narrow leaved tea tree 15-20 parts, Chinese cassia tree 15-20 parts, dispersant 3-8 parts,
Carrier 80-100 parts, binding agent 2-10 parts, preservative 2-4 parts.
2. a kind of plant source fumigant according to claim 1, it is characterised in that：Raw material including following parts by weight：
25 parts of grass-leaved sweetflag, 26 parts of rue, 18 parts of Phytolacca acinosa, 17 parts of banksia rose Ru, 18 parts of narrow leaved tea tree, 18 parts of Chinese cassia tree, 6 parts of dispersant, load
95 parts of body, 5 parts of binding agent, 3 parts of preservative.
3. a kind of plant source fumigant according to claim 1, it is characterised in that：The dispersant is detergent alkylate sulphur
One kind in sour sodium, APES and sodium lignin sulfonate.
4. a kind of plant source fumigant according to claim 1, it is characterised in that：The carrier be kaolin, bentonite,
One kind in white carbon and concave convex rod.
5. a kind of plant source fumigant according to claim 1, it is characterised in that：The binding agent is starch, crystallite fibre
Dimension element and polyvinylpyrrolidone are 1 by weight:2:1 mixes.
6. a kind of plant source fumigant according to claim 1, it is characterised in that：The preservative is Sodium Benzoate, card
One kind in pine and sorbic acid.
7. a kind of preparation method of plant source fumigant as claimed in claim 1, it is characterised in that：Comprise the following steps：
（1）Grass-leaved sweetflag, rue cauline leaf, Phytolacca acinosa, banksia rose Ru, narrow leaved tea tree and Chinese cassia tree is weighed, 40-60 mesh, Ran Houjia is crushed to
After entering the water immersion 2-3h of 6-10 times of weight, 5-8h is extracted using steam distillation distillation, the volatile oil for distilling out is collected, so
After adding anhydrous sodium sulfate dehydration afterwards, extract is obtained；
（2）After extract, dispersant, carrier, binding agent and preservative are well mixed, the water wet-milling of 1-2 times of weight is added to obtain
Slurry is arrived, the slurry is granulated, is dried to obtain granule；
（3）By granule compressing tablet, product is prepared.
8. the preparation method of plant source fumigant according to claim 7, it is characterised in that：The step（2）Middle drying
Temperature is 45-55 DEG C, gained granule water content≤1%.
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