CN109156483A - A kind of leek special bio insecticide and preparation method thereof - Google Patents
A kind of leek special bio insecticide and preparation method thereof Download PDFInfo
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- CN109156483A CN109156483A CN201811280006.3A CN201811280006A CN109156483A CN 109156483 A CN109156483 A CN 109156483A CN 201811280006 A CN201811280006 A CN 201811280006A CN 109156483 A CN109156483 A CN 109156483A
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring 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
- 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
- A01N65/40—Liliopsida [monocotyledons]
- A01N65/42—Aloeaceae [Aloe family] or Liliaceae [Lily family], e.g. aloe, veratrum, onion, garlic or chives
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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 a kind of leek special bio insecticides and preparation method thereof; the insecticide is prepared from the following raw materials in parts by weight: 1~5 part of pyrethrin, 1~5 part of Banlangen, 1~5 part of nimbin; 30~45 parts of Folium Meliae; 25~35 parts of morning glory cauline leaf, 20~30 parts of cucumber climing rattan, 30~40 parts of purslane; 25~40 parts of garlic; 10~20 parts of granatum, 0.5~2 part of pH adjusting agent, 0.2~1.0 part of stabilizer.Leek special bio insecticide of the present invention, leek diseases and insect pests can be effectively prevented, drug effect is high, it can degrade in the natural environment, to environment environmental protection, pest will not be made to develop drug resistance, pesticide residue will not be caused to leek after application, nutrient needed for it can also be provided simultaneously for leek, the yield and quality of leek is improved.
Description
Technical field
The present invention relates to technical field of insecticide, specifically a kind of leek special bio insecticide and preparation method thereof.
Background technique
Leek, (scientific name:A. tuberosum Rottl. ex Spreng.) alias: Feng Ben, careless clock cream, Folium Allii tuberosi, lazyness
People's dish, long-living fragrant-flowered garlic, Folium Allii tuberosi, flat dish etc.；Belong to Liliaceae herbaceos perennial, has special overpowering odor, rhizome accumbency, bulb
Narrow cone, fasciation；Scale formula crust yellowish-brown, reticular fibre matter；Phyllopodium is raw, and bar shaped is flat；Umbel, basidixed.Leaf, flower
Roripa and Hua Jun are for vegetable consumption；Leek it is full of nutrition, containing multivitamin, calcium, phosphorus, iron, crude fibre, protein etc.,
Content is all more, and leek Leaf lower epidermis contains volatile materials allyl sulfides, and appetite can be promoted by being commonly called as " allicin ".Leek removes conduct
Outside vegetables, and there is certain medical value, is a kind of good medical medicinal material, there is kidney tonifying, stomach invigorating is refreshed oneself, hidroschesis astringent method etc.
Effect.In Chinese medicine, leek is referred to as " intestinal lavage grass ".Fertilizer requirement is big in leek planting process, and resistance to fertilizer ability is strong, and fertilizer deficiency then can shadow
Ring the yield of leek.
Leek is perennial root vegetables, and pest and disease damage is more, and endangering the common disease pest of leek has epidemic disease, gray mold, rust, bacterium
Core disease, green onion aphid, Bradysia odoriphaga etc., only science, reasonably use pesticide at safety, can just efficiently control pest and disease damage
Occur and endangers.Sick leaf is mostly fallen ill since middle and lower part.Leek endanger the serious most common subterranean pest-insect first is that bradysia odoriphaga, some
Vegetable grower in order to prevent and treat bradysia odoriphaga guarantee yield, do not stint using it is some country disabling highly toxic pesticide it is prevented and treated, as acephatemet,
Parathion etc..In recent years, be excessively stranded by pesticide residue always in leek production process, leek and using leek as raw material produce
Leek product in pesticide residue excessive problem be one of phase problem to be solved, currently cause the master of China's leek pesticide residue
It wants the reason is that as caused by chemical prevention leek diseases and insect pests.While blindly devoting exclusive attention to output with quality, vegetable grower increases use
Concentration and medicine frequency, the exceeded situation of vegetable pesticide residue start to increase, and consumer causes because eating the leek of remains of pesticide
Food poisoning occurs again and again, leek and is a problem to be solved by excessive pesticide residues in the product of raw material of leek.
Currently, the use of chemical insecticide, although only more than 60 years history, in keeping updating, pest
Linear upward trend is but presented in the renewal speed of drug resistance, and expenses for prevention and control is caused to be continuously improved.And desinsection biology is especially micro- life
Object has adapted to the defence system of insect during community life long-term with insect, they survive by insect, can
To say that insect is all held in a very low level to the immunocompetence centuries of some pathogenic microorganisms or even thousands of years.For
Better protection environment realizes sustainable development, and for preventing pest from generating drug resistance, starts gradually to advocate
Using biological insecticides, a kind of main trend will be become using biological insecticides.
Biological insecticides are broadly divided into: Dipel, insect viruses, 3 major class of plant leaching liquor immersion, have materials conveniently,
It is low in cost, control period is long, efficiently, economical, safe and pollution-free, it is compatible with environment high the features such as, be currently produce it is nuisanceless
The best pesticide selection of green vegetables production.But there is also certain deficiencies for present pure biological insecticides, first is that effect is single,
Certain specific pest and disease damages can only be often directed to, second is that stability is bad, are influenced vulnerable to extraneous factor, fast decoupled, when continuing
Between it is too short；Third is that less pertinence is strong, the normal band of medication bears the character of much blindness in production.Therefore the invention proposes one kind to be directed to
The biological insecticides that property is strong, insecticidal effect is good, environment friendly and pollution-free, to make up the deficiencies in the prior art.
Summary of the invention
The object of the present invention is to provide a kind of leek special bio insecticides and preparation method thereof, which can have
Leek diseases and insect pests are prevented to effect, drug effect is high, can degrade in the natural environment, and no pollution to the environment will not make pest generate anti-medicine
Property, pesticide residue will not be caused after application to leek, moreover it is possible to while the nutrient needed for it being provided for leek, improve leek
Yield and quality.
The invention is realized by the following technical scheme:
A kind of leek special bio insecticide, is prepared from the following raw materials in parts by weight: 1~5 part of pyrethrin, Banlangen 1
~5 parts, 1~5 part of nimbin, 30~45 parts of Folium Meliae, 25~35 parts of morning glory cauline leaf, 20~30 parts of cucumber climing rattan, purslane
30~40 parts, 25~40 parts of garlic, 10~20 parts of granatum, 0.5~2 part of pH adjusting agent, 0.2~1.0 part of stabilizer；
The pH adjusting agent is sodium carbonate, the combination of two or more in sodium bicarbonate, phosphoric acid, sodium dihydrogen phosphate forms；
The stabilizer is fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylaryl
Combination of two or more in polyoxyethylene poly-oxygen propylene aether forms.
The leek special bio insecticide, preparation method are as follows:
A, Folium Meliae, morning glory cauline leaf, cucumber climing rattan and purslane are shredded respectively to 1~2cm long, by garlic and granatum point
It does not smash, is uniformly mixed, the ethyl alcohol of 4~8 times of its total weight is added, refluxing extraction 40~60 is carried out under conditions of 30~40 DEG C
Minute, ethyl alcohol is recycled, alcohol extract is obtained, it is spare；
B, the filter residue in step A is taken, is added in the boiling water of 8~15 times of its weight boiling 1~2 hour, mixing water is obtained by filtration and mentions
Liquid, it is spare after concentration；
C, pyrethrin, matrine and nimbin are dissolved in a small amount of ethyl alcohol, ethanol additive is made, it is spare；
D, mixing Aqueous extracts obtained in step A are mixed with the alcohol extract in step B, pH adjusting agent and stabilizer are added,
It stirs evenly, homogeneous, sterilizes to get product.
The leek special bio insecticide, application method are as follows: leek special bio insecticide is watered and is made 500~
800 times of liquid, are sprayed on the cauline leaf of leek.
The biological insecticides apply also for the liliaceous vegetables such as green onion, garlic, onion.
The prescription of biological insecticides of the present invention is obtained through overtesting, each component used all has certain kill
Worm effect, the bioactive substance with insecticidal effect is combined with Chinese herbal medicine extracting solution, after being combined into formula use
Insecticidal effect is more preferably.
Pyrethrin is also known as natural pyrethrum, be by pyrethrum flowers (Pyreyhrum cineriifoliun Trebr)
The active constituent with insecticidal effect of middle separating and extracting.It includes pyrethrin I, pyrethrin II, cinerin I, melon leaf
Chrysanthemum element II, jasmolin I, jasmolin ii composition.Water and CO are slowly naturally resolved into except chrysanthemum element is light-exposed, therefore is prepared with it
Pesticide or hygienic insecticide etc. it is without side-effects to people and animals using rear noresidue, good disinsection effect, insect is not likely to produce drug resistance,
It can be used for manufacturing the pesticide for killing the very strong pest of resistance, be internationally recognized safest pollution-free natural insecticide, extensively
Desinsection for industrial crops such as green vegetables, green fruit, green teas.Pyrethrin, which has, quickly to be knocked down, blocks valve
Lethal action of contace poison, lethality is high, and low using concentration.
Banlangen be by leguminous plant kuh-seng (scientific name:Sophora flavescens) dry root, plant, fruit warp
The organic solvents such as ethyl alcohol extract manufactured alkaloid.Banlangen is the general designation of all alkaloids of kuh-seng, and main component has hardship
Join a variety of alkaloids such as alkali, sophocarpine, N-Oxysophocarpine, Sophoridine, with matrine, oxymatrine concentration highest.Matrine
It is Study of Natural Plant Pesticides, is broad spectrum pesticide to people and animals' low toxicity, has and tag and stomach poison function, is a kind of low toxicity, low residual
It stays, eco-friendly pesticide.Matrine has the function of the multiple functions such as insecticidal activity, bactericidal activity, coordinate plant growth, to various works
Armyworm, cabbage caterpillar, aphid, red spider on object have apparent control efficiency；It can be decomposed rapidly in the Nature, final product is
Carbon dioxide and water.Banlangen makes it not easily lead to nuisance and develops drug resistance because of a variety of chemical substance collective effects, energy
It is used for a long time.
Nimbin is to print chinaberry (Classification system by deciduous treeAzadirachta Indica A.Juss) seed or tree
The tetracyclic triterpenoid extracted in skin.Nimbin class compound and the intracorporal steroids of insect and steroid etc.
Hormonal substance is closely similar, thus pest be not easily distinguishable they be in vivo it is intrinsic or it is extraneous force, so they were both
It is able to enter a life process of interference pest in pest body, to kill off the insect pests, and pest is not easy to cause and develops drug resistance.Through
Modern research shows that the nimbin that extracts is wide spectrum recognized in the world, efficient, less toxic, degradable, nothing from print chinaberry fruit
Remaining insecticide.It generates Antifeedant Effects by destroying the chemical co-ordination organ of insect mouthpart；By to midgut digestive enzymes
The nutrition conversion deficiency so that food is acted on, the vitality of insect is influenced；The feeding rate of insect can also be reduced and food is turned
Change utilization rate, insect hormone in vivo balance is influenced, thus interference insect growth and development.
Folium Meliae is Meliaceae plant chinaberryMelia azedarach L.And melia toosendanM.toosendan Sieb.Et Zucc.
Leaf, using fresh herb.TCM investigation its with the effect of heat-clearing and damp-drying drug, desinsection is antipruritic, promoting qi circulation and relieving pain.
Garlic is called garlic, garlic, giant garlic, calabash, only garlic, single clove garlic, is the general designation of garlic class plant.Sulfur-bearing in garlic
Compound has extremely strong antibacterial and anti-inflammation functions, has inhibition and killing effect to a variety of coccuses, bacillus, fungi and virus etc.,
It is strongest one kind of antibacterial action in the natural plants currently found.Modern studies have found that the volatile oil of garlic, juice, leachate
And allicin has inhibition and killing effect to a variety of coccuses, bacillus, mould, fungi, virus etc..
Granatum is the drying pericarp of Punicaceae plant pomegranate Punica granatum L., has relieving diarrhea with astringents, only
The effect of blood, expelling parasite.Granatum containing tannin, wax, resin, mannitol, sugar, natural gum, inulin, cement, gallic acid, malic acid,
The many kinds of substance such as pectin, calcium oxalate and Isoquercitrin.Granatenine has very strong killing power to tapeworm, can act on the flesh of worm
Meat makes it fall into contracts last.Clinic proves that alkaloid person's anthelminthic effect in conjunction with tannic acid is preferable, this is because tannin can make to give birth to
Alkaloids become indissoluble and the difficult compound absorbed.
In addition, morning glory cauline leaf, cucumber climing rattan and purslane all have the effect of certain sterilization expelling parasite, with above-mentioned Chinese medicine
Its effect can be enhanced in compatibility.Morning glory, scientific name:Pharbitis nil(L.) Choisy, category Convolvulaceae ipomoea, 1 year
Raw voluble herb, also known as: towards face, bowl public affairs flower, leading a cow, trumpet flower.Cucumber (scientific name: Cucumis sativus L.) Curcurbitaceae one
It gives birth in year and overgrows or climb up by holding on to herbaceous plant, plantation is in temperate zone and torrid areas extensively.Stem, branch elongation, there is rib ditch, by the rough hard of white
Hair.Purslane (scientific name: Portulaca oleracea L.) annual herb, complete stool are hairless.Also known as: horse amaranth, Wu Hangcao are long
Order dish, five sides grass, melon seeds dish, rope made of hemp dish, dent dish, locust dish.Stem lies down, and throws oneself on the ground to spread scattered, branch light green or with kermesinus.Leaf
Alternate, blade is flat, plump, like dent shape, above dirty-green, below light green or with kermesinus；Petiole tubbiness.Chinese north and south
Various regions produce.Herb hyoscine has clearing heat and promoting diuresis, removing toxicity for detumescence, anti-inflammatory, quenches the thirst, diuresis；Seed improving eyesight；Beast can also be made
Medicine and pesticide；Young stem and leaf can make vegetables, sour and good feed.
Beneficial effects of the present invention:
1, leek special bio insecticide of the present invention is that a kind of leek of safe and harmless, environmentally friendly noresidue dedicated kills
Worm agent can be effectively prevented leek diseases and insect pests, and drug effect is high, and insect prevention control period is long, can degrade in the natural environment, to environment without dirt
Dye, will not cause pesticide residue to leek after application, moreover it is possible to while the nutrient needed for it being provided for leek, improve leek
Yield and quality.
2, leek special bio insecticide of the present invention, by the prescription compatibility of science, insecticidal action is mutually assisted
It adjusts, mutually promote, good bug eliminating effect is with strong points, also has the function of lasting insect prevention, pest will not be made to develop drug resistance.
3, leek special bio insecticide of the present invention, raw material sources are extensive, and materials are convenient, and preparation method is simple
Easy to operate, cost is relatively low, easy to use, could be applicable to the liliaceous vegetables such as green onion, garlic, onion.
Specific embodiment
In order to keep technical solution of the present invention and advantage clearer, below with reference to the embodiment of the present invention, to the present invention
Technical solution be clearly and completely described.
Embodiment 1
A kind of leek special bio insecticide, is prepared from the following raw materials in parts by weight:: 1 part of pyrethrin, 3 parts of Banlangen,
2 parts of nimbin, 30 parts of Folium Meliae, 30 parts of morning glory cauline leaf, 20 parts of cucumber climing rattan, 30 parts of purslane, 40 parts of garlic, granatum 10
Part, 0.5 part of pH adjusting agent, 0.2 part of stabilizer；
The pH adjusting agent is sodium carbonate, sodium bicarbonate, phosphoric acid, sodium dihydrogen phosphate are composed；
The stabilizer be fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether and castor oil polyoxyethylene ether combination and
At.
The leek special bio insecticide, preparation method are as follows:
A, Folium Meliae, morning glory cauline leaf, cucumber climing rattan and purslane are shredded respectively to 2cm long, garlic and granatum is distinguished
It smashes, is uniformly mixed, the ethyl alcohol of 4 times of its total weight is added, is carried out refluxing extraction 60 minutes under conditions of 30 DEG C, recycle second
Alcohol obtains alcohol extract, spare；
B, the filter residue in step A is taken, is added in the boiling water of 15 times of its weight boiling 2 hours, mixing Aqueous extracts is obtained by filtration, is concentrated
It is spare afterwards；
C, pyrethrin, matrine and nimbin are dissolved in a small amount of ethyl alcohol, ethanol additive is made, it is spare；
D, mixing Aqueous extracts obtained in step A are mixed with the alcohol extract in step B, pH adjusting agent and stabilizer are added,
It stirs evenly, homogeneous, sterilizes to get product.
The leek special bio insecticide, application method are as follows: leek special bio insecticide is watered and is made 600 times
Liquid is sprayed on the cauline leaf of leek.
Embodiment 2
A kind of leek special bio insecticide, is prepared from the following raw materials in parts by weight: 2.5 parts of pyrethrin, Banlangen 1
Part, 1 part of nimbin, 40 parts of Folium Meliae, 35 parts of morning glory cauline leaf, 30 parts of cucumber climing rattan, 35 parts of purslane, 25 parts of garlic, pomegranate
15 parts of skin, 1.0 parts of pH adjusting agent, 0.6 part of stabilizer；
The pH adjusting agent is that sodium carbonate, sodium bicarbonate, phosphoric acid and sodium dihydrogen phosphate are composed；
The stabilizer is alkyl phenol polyoxyethylene ether, is composed in alkylaryl polyoxyethylene poly-oxygen propylene aether.
The leek special bio insecticide, preparation method are as follows:
A, Folium Meliae, morning glory cauline leaf, cucumber climing rattan and purslane are shredded respectively to 1cm long, garlic and granatum is distinguished
It smashes, is uniformly mixed, the ethyl alcohol of 5 times of its total weight is added, is carried out refluxing extraction 60 minutes under conditions of 35 DEG C, recycle second
Alcohol obtains alcohol extract, spare；
B, the filter residue in step A is taken, is added in the boiling water of 8 times of its weight boiling 1 hour, mixing Aqueous extracts is obtained by filtration, is concentrated
It is spare afterwards；
C, pyrethrin, matrine and nimbin are dissolved in a small amount of ethyl alcohol, ethanol additive is made, it is spare；
D, mixing Aqueous extracts obtained in step A are mixed with the alcohol extract in step B, pH adjusting agent and stabilizer are added,
It stirs evenly, homogeneous, sterilizes to get product.
The leek special bio insecticide, application method are as follows: leek special bio insecticide is watered and is made 800 times
Liquid is sprayed on the cauline leaf of leek.
Embodiment 3
A kind of leek special bio insecticide, is prepared from the following raw materials in parts by weight:: 4 parts of pyrethrin, 2 parts of Banlangen,
5 parts of nimbin, 45 parts of Folium Meliae, 35 parts of morning glory cauline leaf, 30 parts of cucumber climing rattan, 40 parts of purslane, 38 parts of garlic, granatum 20
Part, 2 parts of pH adjusting agent, 1.0 parts of stabilizer；
The pH adjusting agent is that sodium carbonate, sodium bicarbonate, phosphoric acid and sodium dihydrogen phosphate are composed；
The stabilizer is alkyl phenol polyoxyethylene ether, castor oil polyoxyethylene ether and alkylaryl polyoxyethylene polyoxypropylene
Ether is composed.
The leek special bio insecticide, preparation method are as follows:
A, Folium Meliae, morning glory cauline leaf, cucumber climing rattan and purslane are shredded respectively to 1cm long, garlic and granatum is distinguished
It smashes, is uniformly mixed, is added in the boiling water of 10 times of its weight boiling 2 hours, mixing Aqueous extracts are obtained by filtration, it is spare after concentration；
B, the filter residue in step A is taken, with 8 times of ethyl alcohol of its total weight, is carried out refluxing extraction 30 minutes under conditions of 38 DEG C, is returned
Alcohol extract is obtained after receiving ethyl alcohol, it is spare；
C, pyrethrin, matrine and nimbin are dissolved in a small amount of ethyl alcohol, ethanol additive is made, it is spare；
D, mixing Aqueous extracts obtained in step A are mixed with the alcohol extract in step B, pH adjusting agent and stabilizer are added,
It stirs evenly, homogeneous, sterilizes to get product.
The leek special bio insecticide, application method are as follows: leek special bio insecticide is watered and is made 600 times
Liquid is sprayed on the cauline leaf of leek.
Embodiment 4
A kind of leek special bio insecticide, is prepared from the following raw materials in parts by weight: 5 parts of pyrethrin, 5 parts of Banlangen,
3 parts of nimbin, 40 parts of Folium Meliae, 30 parts of morning glory cauline leaf, 30 parts of cucumber climing rattan, 35 parts of purslane, 34 parts of garlic, granatum 20
Part, 0.8 part of pH adjusting agent, 0.5 part of stabilizer；
The pH adjusting agent is to be composed in sodium carbonate, sodium bicarbonate, phosphoric acid and sodium dihydrogen phosphate；
The stabilizer be fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether and castor oil polyoxyethylene ether combination and
At.
The leek special bio insecticide, preparation method are as follows:
A, Folium Meliae, morning glory cauline leaf, cucumber climing rattan and purslane are shredded respectively to 2cm long, garlic and granatum is distinguished
It smashes, is uniformly mixed, the ethyl alcohol of 8 times of its total weight is added, is carried out refluxing extraction 40 minutes under conditions of 40 DEG C, recycle second
Alcohol obtains alcohol extract, spare；
B, the filter residue in step A is taken, is added in the boiling water of 10 times of its weight boiling 1.5 hours, mixing Aqueous extracts is obtained by filtration, it is dense
It is spare after contracting；
C, pyrethrin, matrine and nimbin are dissolved in a small amount of ethyl alcohol, ethanol additive is made, it is spare；
D, mixing Aqueous extracts obtained in step A are mixed with the alcohol extract in step B, pH adjusting agent and stabilizer are added,
It stirs evenly, homogeneous, sterilizes to get product.
The leek special bio insecticide, application method are as follows: leek special bio insecticide is watered and is made 650 times
Liquid is sprayed on the cauline leaf of leek.
Application Example
Biological insecticides in above-described embodiment have slight damage level in a batch and uniform leek seedling are tested, try
Testing quantity respectively is 1000 plants, and the amount of the biological insecticides applied in Examples 1 to 4 is identical, and control group does not make insect-pest processing, and
No disease and pests harm infects between control group and test group.Experimental Comparison result is as shown in the table:
Wherein, the calculation method of attacked trees rate and control efficiency is as follows:
Attacked trees rate=killed strain number/test strain number × 100%；
Control efficiency=(control group attacked trees rate-processing attacked trees rate)/control group attacked trees rate × 100%.
The above results can be seen that biological insecticides prevention and treatment leek diseases and insect pests of the present invention and work well, 7 after application
It.Its control efficiency has reached 99% or more, reexamines within 15 days after application, control efficiency is still greater than 99%, it is seen that it has
The effect of continuous insect prevention.
Claims (4)
1. a kind of leek special bio insecticide, it is characterised in that: be prepared from the following raw materials in parts by weight: pyrethrin 1~5
Part, 1~5 part of Banlangen, 1~5 part of nimbin, 30~45 parts of Folium Meliae, 25~35 parts of morning glory cauline leaf, cucumber climing rattan 20~
30 parts, 30~40 parts of purslane, 25~40 parts of garlic, 10~20 parts of granatum, 0.5~2 part of pH adjusting agent, stabilizer 0.2~
1.0 part；
The pH adjusting agent is sodium carbonate, the combination of two or more in sodium bicarbonate, phosphoric acid, sodium dihydrogen phosphate forms；
The stabilizer is fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylaryl
Combination of two or more in polyoxyethylene poly-oxygen propylene aether forms.
2. leek special bio insecticide according to claim 1, it is characterised in that: preparation method are as follows:
A, Folium Meliae, morning glory cauline leaf, cucumber climing rattan and purslane are shredded respectively to 1~2cm long, by garlic and granatum point
It does not smash, is uniformly mixed, the ethyl alcohol of 4~8 times of its total weight is added, refluxing extraction 40~60 is carried out under conditions of 30~40 DEG C
Minute, ethyl alcohol is recycled, alcohol extract is obtained, it is spare；
B, the filter residue in step A is taken, is added in the boiling water of 8~15 times of its weight boiling 1~2 hour, mixing water is obtained by filtration and mentions
Liquid, it is spare after concentration；
C, pyrethrin, matrine and nimbin are dissolved in a small amount of ethyl alcohol, ethanol additive is made, it is spare；
D, mixing Aqueous extracts obtained in step A are mixed with the alcohol extract in step B, pH adjusting agent and stabilizer are added,
It stirs evenly, homogeneous, sterilizes to get product.
3. leek special bio insecticide according to claim 1, it is characterised in that: its application method are as follows: leek is dedicated
Biological insecticides, which are watered, is made 500~800 times of liquid, is sprayed on the cauline leaf of leek.
4. leek special bio insecticide according to claim 1, it is characterised in that: the biological insecticides apply also for
Green onion, garlic, onion.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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