CN102318620A - Insecticidal composition - Google Patents
Insecticidal composition Download PDFInfo
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- CN102318620A CN102318620A CN201110192664A CN201110192664A CN102318620A CN 102318620 A CN102318620 A CN 102318620A CN 201110192664 A CN201110192664 A CN 201110192664A CN 201110192664 A CN201110192664 A CN 201110192664A CN 102318620 A CN102318620 A CN 102318620A
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- killing teichomycin
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Abstract
The invention relates to an insecticidal composition, which comprises two active components such as spinosad and azadirachtin. The insecticidal composition has a good control effect on diamond back moth. Due to the adoption of the insecticidal composition, the generation of the drug fastness can be delayed, the environmental pollution can be reduced, and drug hazard is difficult to produce while the dosage is reduced.
Description
Technical field
The invention belongs to pesticide field, relate in particular to the Pesticidal combination of a kind of multiple killing teichomycin and nimbin.
Background technology
Multiple killing teichomycin (Spinosad) has another name called pleocidin, is a kind of macrolides Nuisanceless high-efficient biological insecticides that in the sugared many born of the same parents fermented liquid of thorn, extract.Parent strain soil actinomycetes thorniness saccharopolyspora strain (the Saccharopolyspora spinosa Metrz & Yao) initial separation that produces multiple killing teichomycin is from one of the Caribbean discarded wine brewing field.The mode of action of multiple killing teichomycin is novel, can sustained activation target insect acetylcholine nicotine receptor, but its binding site is different from nicotine and Imidacloprid.Multiple killing teichomycin also can influence the GABA acceptor, but mechanism of action is unclear.Whether also do not know at present has cross tolerance with the insecticide of other types.These compounds can cause that target plant-feed insect such as caterpillar, leaf miner, thrips and leaf-feeding beetle are dead rapidly; Although administrative department's strong request is not used when resistance occurs, the moderate residual activity of this compound has reduced the resistance possibility living with mass-sending.The acting body of nicotinic acid acetylcholinergic receptor can sustained activation target insect acetylcholine nicotine receptor, but its binding site is different from nicotine and Imidacloprid.Multiple killing teichomycin also can influence the GABA acceptor, insect is had tag fast and stomach poison function, and blade is had stronger osmosis, can kill subepidermal insect, and the longevity of residure is longer, and some insects are had certain ovicidal action.No systemic action.Can effectively preventing Lepidoptera, diptera and thrips insect, can prevent and treat well also that some measures the pest species of eating blade greatly in coleoptera and the orthoptera, relatively poor to the control efficiency of sucking pest and mite class.Safer to the predator insect, unique because of insecticidal action mechanism, do not find as yet at present to have mutual drug-fast report with other insecticides.Plant safety there is not poisoning.Be suitable for using on vegetables, fruit tree, gardening, the crops.Can make insect benumb rapidly, paralyse, cause death at last.Its desinsection speed can compare favourably with chemical pesticide.Safe, and do not have the biological insecticides that cross resistance is low toxicity, efficient, low-residual with present common insecticide, existing insecticidal properties efficiently has again the characteristic of beneficial insect and mammalian safe being arranged, the most suitable pollution-free vegetable, fruit production application.
Nimbin (azadirachtin) is the strongest compound of activity that from seal chinaberry (Azadriachta indica), extracts, and it belongs to tetracyclic triterpenes.Nimbin can be divided into nimbin-A ,-B, and-C ,-D ,-E, totally 8 kinds of-F ,-G ,-I mainly are distributed in kind of a nuclear, secondly in leaf.Mechanism of action is special, and the nimbin that It is generally accepted has following several aspect to the mechanism of action of insect: directly or indirectly produce the food refusal effect through the chemical co-ordination organ that destroys the insect mouthpart; Effect through centering intestinal digestion enzyme makes that the nutrition conversion of food is not enough, influences the vitality of insect.The nimbin of high dose is kill insects directly, and low dosage then causes and permanent larva or the pupa of deformity, adult etc. occur.Through of the synthetic and release of inhibition cerebral nerve secretory cell, influence the synthetic and release of prothoracic gland, and corporal allata is to the synthetic and release of juvenile hormone to ecdysteroids to thoratropic hormone (PTrH).The destruction of juvenile hormone normal concentration level makes the synthetic deficiency of the needed vitellogenin of the insect maturation of ovum simultaneously and causes sterile in the insect hemolymph.Because nimbin has food refusal, avoid keep away, tag, stomach toxicity, interior suction and suppress insect growth growth effect, by internationally recognized be most important antifeedant for insect.It has efficiently, wide spectrum, pollution-free, noresidue, be difficult for developing immunity to drugs, harmless and to homoiothermy animals such as people and animals to characteristics such as pest natural enemy safety, can prevent and treat kind of agricultural surplus 10 orders 400, storage and sanitary insect pest.Use the nimbin insecticide and can prevent and treat insects such as cotton bollworm, caterpillar, gypsymoth, Japanese beetle first, tobacco budworm, the real noctuid of paddy, prodenia litura, diamond-back moth, Liriomyza, fall army worm, desert locust, African migratory locust, corn borer, brown plant-hopper, thrips, brill back of the body worm, fruit bat, armyworm effectively; Can be widely used in crops such as grain, cotton, forest, flowers, melon and fruit, vegetables, tobacco, tealeaves, coffee, insect is developed immunity to drugs to it.
Because agricultural pests causes very big loss to crops production every year, considers the agricultural chemicals of long-term use single variety, impels insect to produce resistance easily; Environment is caused bigger pollution, and field trial shows, the existing medicament another kind of mixed pesticide different with mechanism of action; Can not only postpone resistance and produce, can also improve drug effect and residual period, reduce usage amount; Reduce cost, so we are with multiple killing teichomycin and the composite expansion insecticidal spectrum of nimbin.Not only can effectively prevent and treat most of insect, reduce environmental pollution, also improve drug effect and lasting period.
Summary of the invention
The purpose of this invention is to provide that a kind of insecticidal activity is efficient, lasting effect is long, the Pesticidal combination of the high and low poison of quick-acting, environmental protection.Concrete relate to multiple killing teichomycin and nimbin is the pesticidal preparations of basis.
Above-mentioned Pesticidal combination contains multiple killing teichomycin 0.5%～30%, nimbin 0.1%～30%.
Utilize the described insecticides of the invention described above, be equipped with the known auxiliary agent of those skilled in that art, can process formulation of the present invention with those skilled in that art's known method.Its formulation that can process is suspending agent, wetting powder, water dispersible granules.
Advantage that the present invention has and beneficial effect: 1. the desinsection scope is wide; 2. the lasting period is long; 3. low toxicity, noresidue, nuisanceless, environmentally safe; 4. use compound formulation, two kinds of insecticides also have synergistic effect, and the consumption of two kinds of insecticides reduces during all than single use, thereby has improved insecticidal effect, has increased safety, has reduced environmental pollution.
Embodiment
Following instantiation is in order to further explain the present invention, but the present invention absolutely not only is limited to following these embodiment.Percentage all is weight percentage in the prescription, and employed former medicine and auxiliary agent are other producers and buy.
Formulation examples is following:
1, the preparation of suspending agent
According to the prescription requirement, be medium with water, with grinding in the adding sand mills such as active ingredient, wetting agent, dispersant, thickener, antifoaming agent, the back adds emulsification in the high-shear emulsifying still, makes suspending agent.
Prescription one (5% suspending agent)
Prescription two (3% suspending agents)
2, the preparation of wetting powder
Active ingredient, wetting agent, dispersant, filler etc. are fully mixed in the ratio of prescription, and after ultrafine crusher was pulverized, fineness reached 98% through 325 mesh standard sieves, promptly gets wetting powder.
Prescription three (9% wetting powders)
3, the preparation of water dispersible granules
Active ingredient, wetting agent, dispersant, adhesive, filler etc. are fully mixed in the ratio of prescription, after ultrafine crusher is pulverized, add an amount of purified water, make water dispersible granules through kneading, granulation, drying, screening.
Prescription four (20% water dispersible granules)
Prescription five (30% water dispersible granules)
Diamond-back moth (Plutella xylostella) belongs to Lepidoptera diamond-back moth section, another name: little blue or green worm, pointed at both ends.Belong to the worldwide insect that migrates, crucifers such as main harm wild cabbage, purple cabbage, broccoli, a kind of sedge dish, leaf mustard, cauliflower, Chinese cabbage, rape, radish.The harm characteristics: first instar larvae is only got food mesophyll, stays epidermis, on the dish leaf, forms transparent one by one spot, and 3～4 instar larvaes can be eaten into the dish leaf hole and incise, and full leaf is eaten and reticulated when serious.Often concentrate lobus cardiacus to cause harm in seedling stage, the influence bag heart.In the strain of reserving seed for planting, endanger tender stem, young pod and seed.Multiple killing teichomycin, nimbin are two kinds of compositions that insecticidal activity is very high, according to their the effect characteristics and mechanism of action, the object of indoor biometrics are decided to be diamond-back moth.
The method of indoor biometrics is: adopt capillary trace drop method, capillary trace dropper volume is 1.0 μ L.With micro-dropper soup is pursued a drop in the back side of striped rice borer 6 instar larvaes; Each concentration is handled about 30 larva; The culture dish that it is 9cm that per 5 larvas are put into a diameter, the built-in a small amount of feed of ware supplies to get food, in addition with 30 larvas of acetone drop as contrast.Larva after treatment still is placed in the receptacle, checks lethality behind the 48h.Data are handled with the SPSS software statistics.Obtain toxicity regression formula, the lethal concentration of 50, correlation coefficient etc., and obtain co-toxicity coefficient with the abundant method of Sun Yun.
The co-toxicity of mixture preparation adopts the abundant co-toxicity coefficient method representation of Sun Yun:
The theoretical toxicity index A=∑ of mixture preparation (toxicity index of certain medicine * percentage of this pharmaceutically active ingredient in mixture).
C was synergistic effect greater than 120 o'clock, less than 80 o'clock be antagonism, 80～120 o'clock is addition.
The different proportionings of table 1 are to the toxicity test result of rice fulgorid
Table 2 multiple killing teichomycin is tested the test of giving birth to of diamond-back moth
| Dosage (mg/L) | The examination borer population | Death toll | Lethality (%) | Corrected mortality (%) |
| 50 | 100 | 23 | 23.00 | 23.00 |
| 40 | 100 | 38 | 38.00 | 38.00 |
| 20 | 100 | 60 | 60.00 | 60.00 |
| 10 | 100 | 81 | 81.00 | 81.00 |
| 5 | 100 | 96 | 96.00 | 96.00 |
| CK | 100 | 0 |
Table 3 nimbin is tested the test of giving birth to of diamond-back moth
| Dosage (mg/L) | The examination borer population | Death toll | Lethality (%) | Corrected mortality (%) |
| 50 | 100 | 19 | 19.00 | 19.00 |
| 40 | 100 | 46 | 46.00 | 46.00 |
| 20 | 100 | 72 | 72.00 | 72.00 |
| 10 | 100 | 88 | 88.00 | 88.00 |
| 5 | 100 | 97 | 97.00 | 97.00 |
| CK | 100 | 0 |
The test of giving birth to of a pair of diamond-back moth of table 4 prescription is tested
| Dosage (mg/L) | The examination borer population | Death toll | Lethality (%) | Corrected mortality (%) |
| 50 | 100 | 11 | 11.00 | 11.00 |
| 40 | 100 | 18 | 18.00 | 18.00 |
| 20 | 100 | 25 | 25.00 | 25.00 |
| 10 | 100 | 39 | 39.00 | 39.00 |
| 5 | 100 | 48 | 48.00 | 48.00 |
| CK | 100 | 0 |
The test of giving birth to of two pairs of diamond-back moths of table 5 prescription is tested
| Dosage (mg/L) | The examination borer population | Death toll | Lethality (%) | Corrected mortality (%) |
| 50 | 100 | 13 | 13.00 | 13.00 |
| 40 | 100 | 17 | 17.00 | 17.00 |
| 20 | 100 | 30 | 30.00 | 30.00 |
| 10 | 100 | 49 | 49.00 | 49.00 |
| 5 | 100 | 76 | 76.00 | 76.00 |
| CK | 100 | 0 |
The test of giving birth to of three pairs of diamond-back moths of table 6 prescription is tested
| Dosage (mg/L) | The examination borer population | Death toll | Lethality (%) | Corrected mortality (%) |
| 50 | 100 | 23 | 23.00 | 23.00 |
| 40 | 100 | 30 | 30.00 | 30.00 |
| 20 | 100 | 52 | 52.00 | 52.00 |
| 10 | 100 | 77 | 77.00 | 77.00 |
| 5 | 100 | 91 | 91.00 | 91.00 |
| CK | 100 | 0 |
The test of giving birth to of four pairs of diamond-back moths of table 7 prescription is tested
| Dosage (mg/L) | The examination borer population | Death toll | Lethality (%) | Corrected mortality (%) |
| 50 | 100 | 36 | 36.00 | 36.00 |
| 40 | 100 | 51 | 51.00 | 51.00 |
| 20 | 100 | 78 | 78.00 | 78.00 |
| 10 | 100 | 92 | 92.00 | 92.00 |
| 5 | 100 | 98 | 98.00 | 98.00 |
| CK | 100 | 0 |
The test of giving birth to of five pairs of diamond-back moths of table 8 prescription is tested
| Dosage (mg/L) | The examination borer population | Death toll | Lethality (%) | Corrected mortality (%) |
| 50 | 100 | 27 | 27.00 | 27.00 |
| 40 | 100 | 43 | 43.00 | 43.00 |
| 20 | 100 | 59 | 59.00 | 59.00 |
| 10 | 100 | 78 | 78.00 | 78.00 |
| 5 | 100 | 89 | 89.00 | 89.00 |
| CK | 100 | 0 |
Analyzing above-mentioned data determination result shows; When multiple killing teichomycin and nimbin different proportion are composite; Prescription three, prescription four, prescription five co-toxicity coefficient are respectively 102.01,107.32,117.17, all belong to addition, and fill a prescription one with the co-toxicity coefficient of prescription two all greater than 120; Be respectively 144.90 and 168.28, all have obvious synergistic effect.Thereby think that multiple killing teichomycin and nimbin are re-dubbed suspending agent, comparatively favourable to its drug effect performance.
Through the indoor biometrics test, select the field trial that the bigger prescription of CTC one, prescription two and the less prescription three of CTC are prevented and treated diamond-back moth, confirm the effect of prescription control diamond-back moth; Simultaneously through with the effect comparison of multiple killing teichomycin, the agent of nimbin list, verify the synergistic effect after composite.Concrete test method and data are following:
Test one: 5% multiple killing teichomycin nimbin SC, 3% multiple killing teichomycin nimbin SC, 10% multiple killing teichomycin SC, 5% nimbin SC and do the test of field control diamond-back moth; The test place is that Hanchuan City Liu of Xiaogan Prefecture, Hubei Province is at a distance from the town; Time is on June 14th, 2010, test totally four processing, and each handles three repetitions; The sub-district randomized arrangement, sub-district area 67m
2, the planting habit of all sub-districts all planting habit with local is identical, and is record dispenser same day and all synoptic data thereafter, specific as follows:
Table 9 duration of test meteorological data
The investigation standard is: 7d gets killed strain 50 strains at random behind the medicine in each sub-district, and the life or death number of bat dish method metering nymph calculates lethality; 150 clumps of parallel sampling method samplings are adopted in 15d, the every sub-district of 25d behind the medicine, investigate withered calculation, calculate withered heart rate and seedling protecting effect at last.Specifically data (data are the mean value of three repetitions) are as follows:
Table 10 5% multiple killing teichomycin nimbin SC and other compounded formulas are to the field control effectiveness test of diamond-back moth
Annotate: data are the mean value that repeats for 3 times in the table, and letter is all Duncan testing differentia remarkable time mutually: in June, 2010 place: the Hubei Xiaogan
Can find out from above-mentioned data; Under the situation of identical using dosage, 5% multiple killing teichomycin nimbin SC 25d control rate behind medicine is that 86.03%, 3% multiple killing teichomycin nimbin SC 25d control rate after medication reaches 87.26%; For only using 10% multiple killing teichomycin SC and 5% nimbin SC; The effect that two kinds of composite preventive effects are higher than single agent far away when using, difference is extremely remarkable, and 9% multiple killing teichomycin nimbin WP 25d after medication; Its preventive effect is 74.72%, and prescription one and fill a prescription evident difference is arranged between two.
Through above-mentioned three field control effectiveness tests, can find out that the effect of prescription one, prescription two control diamond-back moths is best, this also matches with the result of indoor biometrics, and (CTC is big more; Synergistic effect is big more), and the two significant difference, simultaneously; The two employed former doses of filling a prescription are lower; Think that prescription two is best, the most economical proportionings of effect, the single agent with respect to multiple killing teichomycin and nimbin has stronger synergistic effect.
Through above-mentioned three field control effectiveness tests, can confirm to fill a prescription two for the more suitable prescription of control diamond-back moth, this prescription has been carried out further test, filter out the optium concentration of control diamond-back moth.
Test two: experimental scheme 4g/ mu, 5g/ mu, 6g/ mu and 4 concentration gradients of 7g/ mu are also done contrast with the effect of 10% multiple killing teichomycin SC (5g/ mu), 5% nimbin SC (5g/ mu) respectively; Test method and investigation method are the same, and specifically data (mean values of three repetitions) are as follows:
The effect table of table 11 prescription two different amounts control diamond-back moth
Annotate: data are the mean value that repeats for 3 times in the table, and letter is all Duncan testing differentia remarkable time mutually: in June, 2010 place: the Hubei Xiaogan
Can find out that from the result of the above-mentioned test of pesticide effectiveness along with the increase of prescription dosage, drug effect also increases to some extent; 3% multiple killing teichomycin nimbin consumption is a 5g/ mu; The seedling protecting effect of 25d is 90.27% behind the medicine, and apparently higher than 10% multiple killing teichomycin and 5% nimbin list agent, difference is extremely remarkable; When the mu consumption was 6g and 7g, 25 days seedling protecting effect is respectively 91.70% and 92.65% after medication, and was not remarkable with the difference of 5g/ mu.Therefore, under the prerequisite of considering the mu cost, should advocate mu usage amount is 5g/ mu.
Claims (3)
1. a Pesticidal combination is characterized in that, active ingredient is made up of multiple killing teichomycin and nimbin.
2. a kind of Pesticidal combination according to claim 1; It is characterized in that said Pesticidal combination is by weight percentage by 0.5%～30% multiple killing teichomycin and 0.1%～30% nimbin; Add an amount of auxiliary agent and carrier, be mixed into suspending agent, wetting powder, water dispersible granules.
3. a kind of Pesticidal combination according to claim 1 is characterized in that, the mass percentage content of active ingredient in preparation is between 1%-60%.
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| CN201110192664A CN102318620A (en) | 2011-07-11 | 2011-07-11 | Insecticidal composition |
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| CN201110192664A CN102318620A (en) | 2011-07-11 | 2011-07-11 | Insecticidal composition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613211A (en) * | 2012-02-27 | 2012-08-01 | 北京燕化永乐农药有限公司 | Compound insecticide |
| CN102726378A (en) * | 2012-06-09 | 2012-10-17 | 广东中迅农科股份有限公司 | Spinosad water dispersible granule and preparation method thereof |
| CN103907628A (en) * | 2014-03-31 | 2014-07-09 | 马瑞 | Cockroach prevention and control agent |
| CN104351218A (en) * | 2014-10-28 | 2015-02-18 | 山东中大药业有限公司 | Microcapsule suspension containing nimbin and chitosan oligosaccharide as effective components |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1411726A (en) * | 2002-10-09 | 2003-04-23 | 华南农业大学 | Nimbin and antibiotic pesticide mixed pesticide preparation |
| EP2039248A1 (en) * | 2007-09-21 | 2009-03-25 | Bayer CropScience AG | Active agent combinations with insecticide and acaricide properties |
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2011
- 2011-07-11 CN CN201110192664A patent/CN102318620A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411726A (en) * | 2002-10-09 | 2003-04-23 | 华南农业大学 | Nimbin and antibiotic pesticide mixed pesticide preparation |
| EP2039248A1 (en) * | 2007-09-21 | 2009-03-25 | Bayer CropScience AG | Active agent combinations with insecticide and acaricide properties |
Non-Patent Citations (1)
| Title |
|---|
| 申洪利，等: "防治蔬菜小菜蛾大区示范报告", 《天津农林科技》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613211A (en) * | 2012-02-27 | 2012-08-01 | 北京燕化永乐农药有限公司 | Compound insecticide |
| CN102726378A (en) * | 2012-06-09 | 2012-10-17 | 广东中迅农科股份有限公司 | Spinosad water dispersible granule and preparation method thereof |
| CN102726378B (en) * | 2012-06-09 | 2015-11-18 | 广东中迅农科股份有限公司 | Spinosad water dispersible granule and preparation method thereof |
| CN103907628A (en) * | 2014-03-31 | 2014-07-09 | 马瑞 | Cockroach prevention and control agent |
| CN104351218A (en) * | 2014-10-28 | 2015-02-18 | 山东中大药业有限公司 | Microcapsule suspension containing nimbin and chitosan oligosaccharide as effective components |
| CN104351218B (en) * | 2014-10-28 | 2016-08-17 | 青岛青知企业管理咨询有限公司 | Microcapsule suspension containing nimbin and chitosan oligosaccharide as effective components |
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Application publication date: 20120118 |