CN102511483A - Special biological pesticide mixture used in lotus root field and preparation method thereof - Google Patents
Special biological pesticide mixture used in lotus root field and preparation method thereof Download PDFInfo
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- CN102511483A CN102511483A CN2011104085946A CN201110408594A CN102511483A CN 102511483 A CN102511483 A CN 102511483A CN 2011104085946 A CN2011104085946 A CN 2011104085946A CN 201110408594 A CN201110408594 A CN 201110408594A CN 102511483 A CN102511483 A CN 102511483A
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- biopesticide
- dispersant
- composite dose
- tea saponin
- ethyl pleocidin
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- 238000002360 preparation method Methods 0.000 title abstract description 10
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Abstract
The invention relates to a special biological pesticide mixture used in a lotus root field and a preparation method thereof. The biological pesticide mixture comprises the following components: ethyl spinosyn, theasaponin, a wetting agent, a dispersant, an adhesive and a carrier. The preparation method for the biological pesticide mixture comprises the steps of mixing, crushing, kneading, granulation, drying, sieving, inspection and obtainment of a finished product. The biological pesticide mixture has the advantages of high efficiency, low toxicity, low residual, an effect on controlling Donacia provosti and Prodenia litura of more than 93%, high usage security, simple and handy operation, capacity of natural degradation and good environment compatibility, thereby avoiding pesticide residual in the lotus root product; and the preparation method has the characteristics of advanced processing technology, simple and handy operation, no discharge of three wastes (waste gas, waste water and industrial residue) and high usage security.
Description
Technical field
The present invention relates to pesticide field, relate in particular to biopesticide complex preparation processing method.
Background technology
China is the original producton location of lotus rhizome, and cultivation history is long.Lotus rhizome is nutritious, delicious flavour, be people entertain the guests at a banquet with daily life in one of indispensable vegetables.Lotus rhizome not only can be eaten raw, can also be processed into lotus root starch, sugared lotus root slice etc.; Lotus seeds can be cooked soup, are natural invigorants; Rhizoma nelumbinis and petiole can be used as medicine, the effect that have ventilation, helps digestion.In the past, it is main that lotus rhizome is planted with the pond.In recent years, along with the development and use of resource, waste hollow resource are swung in the structural readjustment of rural industry and some lakes, make lotus rhizome production obtain very fast development.Because plantation lotus rhizome economic benefit is high, some paddy fields have also developed the rice seedling bed lotus root, and the lotus rhizome cultivated area is further enlarged.According to Chinese Academy of Agricultural Sciences's preliminary investigation, the kind of lotus rhizome reaches more than 120, and area under cultivation has the hundreds of thousands hectare.
Yet lotus rhizome can suffer the harm of pest inevitably in process of growth, like harm especially severes such as food root leaf beetle (lotus root maggot), prodenia litura, Pomacea canaliculatas.When insect pest broke out, the lotus root farming was caught unprepared, and the abuse iron countries such as gram, carbofuran and isofenphos of going out expressly forbid high malicious, the persistent pesticide that on vegetables, uses, cause the malicious lotus root sales difficulty of results, and the pesticide poisoning accident also happens occasionally.Because the harm of these insects had both had influence on output, also can reduce quality, be the big factors of restriction lotus rhizome economic benefit and pollution of ecological environment.At present, the biological insecticides that lotus rhizome is special-purpose do not appear in the newspapers as yet.
Summary of the invention
The objective of the invention is to deficiency to prior art; Composite dose of a kind of Biocidal that contains ethyl pleocidin and tea saponin is provided; Said composition is efficient, low toxicity, low-residual, and the effect of control food root leaf beetle and prodenia litura reaches more than 93%, and is safe to use, simple to operate light.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
Composite dose of each component percentages sum of this Biocidal is 100%, and ethyl pleocidin and tea saponin are in effective ingredient weight, and promptly in the weight (down together) of pure ethyl pleocidin and tea saponin contained in the commercial commodity, other is in industrial goods (down together).Composite dose of each composition percentage by weight of this Biocidal is following:
Ethyl pleocidin 1～40%, tea saponin 1～40%, wetting agent 1～4%, dispersant 2～8%, adhesive 0.5～5%, all the other supply 100% with carrier.
Composite dose of each component preferred weight percent of Biocidal described in the present invention is: ethyl pleocidin 1～40%, and tea saponin 10～20%, wetting agent 1～4%, dispersant 2～8%, adhesive 0.5～5%, all the other supply 100% with carrier.
Wetting agent in composite dose of the Biocidal according to the invention is selected from that tea is withered, washing powder, neopelex, Nekal BX or its combination in any.
Dispersant in composite dose of the Biocidal according to the invention is selected from dispersant NNO, sodium lignin sulfonate, water soluble polycarboxylic acid salt, dispersant D-425, urea, bentonite, sodium chloride, ammonium nitrate, ammonium sulfate or its combination in any.
The adhesive of inventing in composite dose of the said Biocidal is selected from water soluble starch, polyvinyl alcohol or its combination in any.
Carrier in composite dose of the Biocidal according to the invention is selected from kaolin, white carbon, attapulgite or its combination in any.
Effective ingredient introduction in composite dose of the Biocidal according to the invention is following:
Ethyl pleocidin: ethyl pleocidin produces from the fermentation of actinomycetes thorn saccharopolyspora strain, is the regeneration product of pleocidin.The former medicine rat acute of ethyl pleocidin per os, be little poison, the lagophthalmos eyeball had excitant, skin nonirritant, no sensitization through skin; To the fish low toxicity, the medium poison of water flea; To the bird low toxicity; Its mechanism of action is to act on nAChR and r-reanal acceptor in the insect nerve, causes polypide insensitive to the signal transfer reaction of excitability or inhibition, influences normal nervous activity, until death.Ethyl pleocidin has stomach toxicity and action of contace poison, be mainly used in control lepidoptera pest (diamond-back moth, beet armyworm) and thrips insect (thrips), but raw material is in great shortage, and expenses for prevention and control is high.If mix use with other mechanism of action different insecticide, can delay pesticide resistance and produce, reduce the control cost.
Tea saponin: commodity are called the withered prestige of spiral shell, are a kind of sugared formula compounds that from the seed of plant of theaceae, extracts, and it belongs to the saponin class, is a kind of natural nonionic surface active agent.Through detecting, Tea Saponin has good emulsifying, dispersion, foaming, function such as moistening, and has anti-inflammatory, analgesia, pharmacological actions such as impermeabilisation.The Tea Saponin product is flaxen attritive powder, is widely used in washing, productions such as wool spinning, knitting, medical, daily-use chemical industry industry.In the solid type agricultural chemicals as wetting agent and suspending agent; As synergist and spreader-sticker, it is again the good auxiliary agent of aqua or soluble powder agricultural chemicals in missible oil type agricultural chemicals, can improve the physical property of agricultural chemicals; Improve the adhesive force of soup, play synergistic effect agricultural chemicals at biology or plant surface.It can be degraded automatically, nonhazardous, and it can not exert an influence to the chemical property of agricultural chemicals in separation process, helps the storage of agricultural chemicals.The withered prestige product of spiral shell acute oral, through skin, suck and all to belong to low toxicity, to the skin nonirritant, eyes are had the moderate excitant, be weak sensitization to skin.Also can be directly as biopesticide.Forest department discovers that the withered prestige control of spiral shell paddy field Pomacea canaliculata is respond well through the Hunan, at present just in the expanding application scope.
The production technology that Biocidal of the present invention is composite dose comprises that the following step gathers:
According to a certain amount of proportioning at first with former medicine: ethyl pleocidin and tea saponin A, wetting agent B, dispersing agent C, adhesive D and carrier E etc. are through evenly mixing; Process ultra-fine wetting powder through airslide disintegrating mill; In ultra-fine wetting powder, add required water, mediate processing; Send the ultra-fine wetting powder after mediating to Squeezinggranulator, carry out granulation; Obtain composite dose of water dispersible granules of Biocidal through dry, screening then, qualified with water dispersible granules conventional sense standard test each item index; Finally process finished product.Its technological process is as shown in Figure 1.
The present invention compares with prior art, has following feature and advantage:
(1) ethyl pleocidin and tea saponin composite after, have significant synergies, insect be difficult for to produce resistance, can prolong the service life of simple substance agricultural chemicals.
(2) enlarged the insecticidal spectrum of simple substance agricultural chemicals, lotus rhizome food root leaf beetle, prodenia litura are had higher biologically active, reduced the unit are dosage, the control cost is low.
(3) this biopesticide can natural degradation, and Environmental compatibility is good, thereby has avoided the residue of pesticide of lotus rhizome product, and its agricultural product commodity is good, sell the lattice height.
Description of drawings
Fig. 1 is a flow sheet of the present invention.
Embodiment
Further specify embodiments of the invention below in conjunction with accompanying drawing.
Employed in the present invention term only if other explanation is arranged, generally has the connotation of those of ordinary skills' common sense.
Below in conjunction with concrete embodiment, further detailed description the present invention.Should understand these embodiment just in order to demonstrate the invention, but not limit scope of the present invention by any way.
The embodiment of the invention is that the method that adopts Toxicity Determination and field trial to combine is carried out.At first in Toxicity Determination, the co-toxicity coefficient (CTC) after clear and definite two kinds of medicaments are composite by a certain percentage, CTC＜80 are antagonism, and CTC≤80-120 is a summation action, and CTC＞120 are synergistic effect, on this basis, carry out the field demonstration test again.
The test of pesticide effectiveness:
Supply the examination insect: prodenia litura mature larva and worm pupa are gathered in lotus rhizome cultivation base in the Hanchuan City, Hubei Province, in the solarium, turn into adult, and mate and oviposit is planted on the lotus rhizome leaf in cement pit, treat behind growth to 3 instar larvaes subsequent use.
Tested medicine: composite dose of biopesticide according to the invention.
Drugs compared: ethyl pleocidin and tea saponin are chosen from market respectively.
Experimental scheme: carry out effective lethal concentration scope that composite dose of ethyl pleocidin and tea saponin two single agent and the two different proportioning are confirmed in preliminary experiment; Each medicament designs five gradient concentrations respectively by active constituent content and handles; Contrast is done in blank processing not contain effective ingredient, the concrete design as follows:
Test method: respectively the mother liquor of ethyl pleocidin, tea saponin and each complex preparation is diluted to above 5 series concentration during test, puts in the beaker subsequent use respectively.Adopt and to soak the method that connects worm behind the leaf earlier, take out the of the same size fresh lotus rhizome leaf that does not contact any medicament is soaked 5s in the soup that configures after, dry naturally; Put into box for feeding pests, connect then and supply examination 3 instar larvaes, at 28 ℃---raise under 34 ℃ of conditions; Every processing repeats for 4 times, and the used examination of every processing worm is 25, establishes blank simultaneously; Check dead borer population in 48h, calculate lethality and corrected mortality, try to achieve virulence regression equation and calculate the LC50 value.If the contrast lethality then is regarded as invalid test greater than 10%.Computing formula is following:
The prodenia litura corrected mortality is converted into probit value (Y), and concentration of treatment (mg/kg) is converted into logarithm value (X), draws virulence regression equation with method of least squares, and calculates the value (LC50) of every kind of medicament thus.Calculate co-toxicity coefficient (CTC) according to the abundant equation of Sun Yun.Computing formula is (with the ethyl pleocidin is the standard medicament, and its toxicity index is 100) as follows:
TI * P the tea saponin of the theoretical toxicity index (ATI) of M=ethyl pleocidin TI * P ethyl pleocidin+tea saponin.
In the formula:
M is the mixture of different proportionings.
The P ethyl pleocidin is ethyl pleocidin shared ratio in composition.
The P tea saponin is tea saponin shared ratio in composition.
Experimental result is in shown in the table 1:
Table 1 ethyl pleocidin, the withered prestige of spiral shell and composite dose of toxicity test thereof to prodenia litura
Embodiment 1 preparation 30% ethyl pleocidin-tea saponin water dispersible granules.
By weight percentage with ethyl pleocidin 15% (in pure ethyl pleocidin weight contained in the commercial commodity; Tea saponin 15% (the weight meter of contained pure tea saponin in the commercial commodity down together); Neopelex 4%, dispersant NNO 8%, water soluble starch 3%, white carbon 8% allotment down together); Complement to 100% with kaolin again, make 30% ethyl pleocidin-tea saponin water dispersible granules by above-mentioned conventional water-dispersible grain agent producing process.
Embodiment 2 preparation 14% ethyl pleocidin-tea saponin water dispersible granules.
By weight percentage with ethyl pleocidin 2%, tea saponin 12%, washing powder 2%; Nekal BX 1%; Water soluble polycarboxylic acid salt 5%, polyvinyl alcohol 3%, white carbon 8%; Complement to 100% with kaolin again, make 14% ethyl pleocidin-tea saponin water dispersible granules by above-mentioned conventional water-dispersible grain agent producing process.
Embodiment 3 preparation 39% ethyl pleocidin-tea saponin water dispersible granules.
By weight percentage with ethyl pleocidin 3%, tea saponin 36%, neopelex 4%, sodium lignin sulfonate 4%, dispersant NNO 3%; 8% allotment of polyvinyl alcohol 4% white carbon; Complement to 100% with attapulgite again, make 39% ethyl pleocidin-tea saponin water dispersible granules by above-mentioned conventional water-dispersible grain agent producing process.
Embodiment 4: ethyl pleocidin-tea saponin water dispersible granules field efficacy demonstration test.
Test medicine:
1,30% ethyl pleocidin-tea saponin water dispersible granules.(embodiment 1 is called for short: first)
2,14% ethyl pleocidin-tea saponin water dispersible granules.(embodiment 2 is called for short: second)
3,39% ethyl pleocidin-tea saponin water dispersible granules.(embodiment 3 is called for short: third)
4,6% ethyl pleocidin suspending agent (commercial, be called for short: many sterilizations)
5,10% tea saponin wetting powder (agricultural chemicals ERC in Hubei provides, and is called for short tea saponin)
Experiment crop and object: lotus rhizome, food root leaf beetle (lotus root maggot), prodenia litura.
Experimental design and enforcement: experiment is located in the contracted field of Hanchuan City, Hubei Province agricultural science and technology model household; Carry out preliminary experiment in advance; In the concentration range of 50%-80% drug effect; The medicament of participating in the experiment all is provided with a concentration (active ingredient/hectare), and promptly test medicine first, second, third is established effective composition 168 gram/hectares; Effective composition 36 gram/hectares are established in the many sterilizations of contrast medicament; The withered prestige of contrast medicament spiral shell is established 300/ hectare of effective composition; Other establishes blank, totally 6 processing, and every processing sub-district area 30 square meters repeat 4 times, by the experimental design planning area.The control prodenia litura is adopted the conventional spray method, and every mu with 30 kilograms of soups, back-pack electric atomizer spray; Control lotus root maggot adopts the pesticide-clay mixture method to spread fertilizer over the fields, and mu evenly spreads fertilizer over the fields after mixing thoroughly with 20 kilograms of thin sand and soils, also can combine to apply fertilizer medicament and chemical fertilizer mixed to apply Tanaka simultaneously.
Preventive effect is estimated: preventive effect is estimated with reference to " national field control effectiveness test criterion " and is investigated and analysed; Be prodenia litura 3,7 days investigation preventive effects behind medicine; How many food root leaf beetles calculated preventive effect with the unit are borer population of living in 15,30 days behind medicine, doublely control investigation to what crop carried out security survey and other pest simultaneously.
Experimental result: duration of test is not found people and animals' intoxication accident and is studied thing and meet with harmful effect, finds simultaneously, and the present invention has certain double effect of controlling to Pomacea canaliculata.Drug effect result shows that test medicine first, second, third all has insecticidal effect preferably, and 3 days preventive effect is respectively 88.9%, 92.0% and 87.6% behind the control prodenia litura medicine; 30 days preventive effect is respectively 90.7%, 91.3% and 90.6% behind the control food root leaf beetle medicine; Above-mentioned test medicine generally is higher than the preventive effect of contrast many sterilizations of medicament (85.4%-67.9%) and the withered prestige of spiral shell (28.6%-55.4%).And consumption is few, and cost is low, and the result matches with indoor biometrics, is a kind of good complex composition.See following table 2 for details.
Table 2 ethyl pleocidin-tea saponin composition field efficacy demonstration test is table as a result
Protection scope of the present invention is not limited to above-mentioned embodiment, and obviously, those skilled in the art can carry out various changes and distortion and do not depart from the scope of the present invention and spirit the present invention.If these changes and distortion belong in the scope of claim of the present invention and equivalent technologies thereof, then the present invention also intentional comprise these changes and the distortion interior.
Claims (9)
1. a biopesticide that is exclusively used in the lotus root field is composite dose, and it is characterized in that: this biopesticide comprises following component for composite dose: ethyl pleocidin, tea saponin, wetting agent, dispersant, adhesive, carrier.
2. composite dose of biopesticide as claimed in claim 1 is characterized in that: by weight percentage, each constituent content is an ethyl pleocidin 1～40%; Tea saponin 1～40%, wetting agent 1～4%, dispersant 2～8%; Adhesive 0.5～5%, all the other supply 100% with carrier.
3. composite dose of biopesticide as claimed in claim 2 is characterized in that: by weight percentage, each constituent content is an ethyl pleocidin 1～40%; Tea saponin 10～20%, wetting agent 1～4%, dispersant 2～8%; Adhesive 0.5～5%, all the other supply 100% with carrier.
4. composite dose of biopesticide as claimed in claim 3 is characterized in that: by weight percentage, each constituent content is an ethyl pleocidin 2～15%, tea saponin 12～36%, wetting agent 3～4%, dispersant 5～8%, adhesive 3～4%, carrier 46～75%.
5. composite dose of biopesticide as claimed in claim 1 is characterized in that: said wetting agent is selected from that tea is withered, washing powder, neopelex, Nekal BX or its combination in any.
6. composite dose of biopesticide as claimed in claim 1 is characterized in that: said dispersant is selected from dispersant NNO, sodium lignin sulfonate, water soluble polycarboxylic acid salt, dispersant D-425, urea, bentonite, sodium chloride, ammonium nitrate, ammonium sulfate or its combination in any.
7. composite dose of biopesticide as claimed in claim 1 is characterized in that: said adhesive is selected from water soluble starch, polyvinyl alcohol or its combination in any.
8. composite dose of biopesticide as claimed in claim 1 is characterized in that: said carrier is selected from kaolin, white carbon, attapulgite or its combination in any.
9. the production method of composite dose of biopesticide according to claim 1, its production stage is:
(1) mixes: ethyl pleocidin and tea saponin (A), wetting agent (B), dispersant (C), adhesive (D) and carrier (E) are evenly mixed by required percentage by weight;
(2) pulverize: mixed uniformly raw material in the step (1) is processed ultra-fine wetting powder through comminution by gas stream;
(3) mediate: the ultra-fine wetting powder in step (2) adds required water, mediates processing;
(4) granulation: send the ultra-fine wetting powder in the step (3) to Squeezinggranulator, carry out granulation through mediating processing;
(5) drying;
(6) screening;
(7) check: qualified with water dispersible granules conventional sense standard test each item index;
(8) finished product.
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| CN103891720A (en) * | 2012-12-27 | 2014-07-02 | 陕西汤普森生物科技有限公司 | Luokuwei-containing compound gastropod-killing composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720766A (en) * | 2009-12-29 | 2010-06-09 | 华南农业大学 | Insecticidal composition of tea saponin and pleocidin |
| WO2011102550A1 (en) * | 2010-02-19 | 2011-08-25 | Sumitomo Chemical Company, Limited | Pest control composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720766A (en) * | 2009-12-29 | 2010-06-09 | 华南农业大学 | Insecticidal composition of tea saponin and pleocidin |
| WO2011102550A1 (en) * | 2010-02-19 | 2011-08-25 | Sumitomo Chemical Company, Limited | Pest control composition |
Non-Patent Citations (1)
| Title |
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| 刘广文: "《农药水分散粒剂》", 30 April 2009, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103891720A (en) * | 2012-12-27 | 2014-07-02 | 陕西汤普森生物科技有限公司 | Luokuwei-containing compound gastropod-killing composition |
| CN103891720B (en) * | 2012-12-27 | 2016-02-17 | 陕西汤普森生物科技有限公司 | A kind ofly kill spiral shell composition containing the composite of the withered prestige of spiral shell |
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