CN104322535B - A kind of insect-killing composition, preparation and purposes thereof - Google Patents
A kind of insect-killing composition, preparation and purposes thereof Download PDFInfo
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- CN104322535B CN104322535B CN201410567451.3A CN201410567451A CN104322535B CN 104322535 B CN104322535 B CN 104322535B CN 201410567451 A CN201410567451 A CN 201410567451A CN 104322535 B CN104322535 B CN 104322535B
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- chlorfluazuron
- pyrrole worm
- worm guanidine
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Abstract
The present invention relates to technical field of pesticide, in particular to a kind of insect-killing composition, preparation and purposes thereof. The effective constituent of said composition is penta pyrrole worm guanidine and chlorfluazuron, it is possible to prevents and treats planthopper and Cnaphalocrocis medinali(rice leaf roller) simultaneously, and prevents generation or the delaying drug resistance speed of pest resistance. Said composition has obvious synergism, is the insect-killing composition that a kind of use cost effect low, anti-is good.
Description
Technical field
The present invention relates to technical field of pesticide, in particular to a kind of insect-killing composition, preparation and purposes thereof.
Background technology
Planthopper and Cnaphalocrocis medinali(rice leaf roller) are paddy rice " two move insect ". Planthopper, Homoptera Delphacidae insect, except thorn suction plant juice hazard rice, makes growth retardation, and time serious, rice clump is agglomerating withered, and the dead stalk in even full field is laid eggs and also can be stabbed plant, destroy transfusion tissue outside lodging, and obstruction nutritive substance transports and propagates disease.
Cnaphalocrocis medinali(rice leaf roller), lepidopteran Pyralidae insect, with larva hazard rice, sews leaf and becomes vertical bud, hide and wherein take food upper epidermis and mesophyll, only stay white lower epidermis. Be injured seedling stage and affect paddy rice normal growth, even withered; Tillering phase was injured to the jointing stage, minimizing of tillering, and plant shortens, and breeding time postpones; After booting, particularly heading is killed to full heading time sword-like leave, and impact is blossomed and beared fruit, and Empty grain rate improves, and thousand seed weight declines. " two move insect " harm is big, and harm time is long, seriously affects the Growth and yield of paddy rice and other crops. Therefore, develop new poison efficient, low, safety compounded pesticides control " two move insect " there is important meaning.
Penta pyrrole worm guanidine is the method spliced by molecular designing and active substructure with contracting amine urea insecticide by anabasine, is set up in same molecule by active structure so that it is have nicotinoids and the new and effective Pesticidal compound of sodium-ion channel inhibitor feature concurrently. Penta pyrrole worm guanidine chemical name: 1-nitro-3 [(6-chloropyridine-3-base) methyl]-4-penta methene amido guanidine, its particular mechanism that penta pyrrole worm guanidine has make its effect more anti-than anabasine insecticide significantly and the lasting period longer.
Chlorfluazuron is a kind of insect growth regulator(IGR) class low toxic pesticide, based on stomach poison function, has action of contace poison concurrently, without interior absorption. Its insecticidal mechanism mainly suppresses chitin synthesis, hinders insect normally to cast off a skin, and makes the hatching of ovum, larval moult and pupa send out residence deformity, and adult eclosion is obstructed, final and cause insect dead. But, chlorfluazuron is invalid to sucking pest (plant hopper, aphid etc.), and farm crop are when insect pest occurs, and multiple insect pest is concurrent often, and the insect pest that wherein lepidoptera pest and sucking pest cause is the most general. Therefore, research and develop a kind of novel sterilant lepidoptera pest and sucking pest simultaneously with synergism significant.
Summary of the invention
In view of this, the present invention provides a kind of insect-killing composition, preparation and purposes thereof. The effective constituent of said composition is penta pyrrole worm guanidine and chlorfluazuron, it is possible to prevents and treats planthopper and Cnaphalocrocis medinali(rice leaf roller) simultaneously, and prevents generation or the delaying drug resistance speed of pest resistance. Said composition has obvious synergism, is the insect-killing composition that a kind of use cost effect low, anti-is good.
In order to realize foregoing invention object, the present invention provides following technical scheme:
The present invention provides a kind of insect-killing composition, comprises penta pyrrole worm guanidine and chlorfluazuron.
Penta pyrrole worm guanidine is the method spliced by molecular designing and active substructure with contracting amine urea insecticide by anabasine, is set up in same molecule by active structure so that it is have nicotinoids and the new and effective Pesticidal compound of sodium-ion channel inhibitor feature concurrently. Penta pyrrole worm guanidine chemical name: 1-nitro-3 [(6-chloropyridine-3-base) methyl]-4-penta methene amido guanidine, its particular mechanism that penta pyrrole worm guanidine has make its effect more anti-than anabasine insecticide significantly and the lasting period longer.
Chlorfluazuron benzoyl area kind insect growth regulator(IGR), its chemical name: 1-[the chloro-4-of 3,5-bis-(3-chloro-5-trifluoromethyl-2-pyridyloxy) phenyl]-3-(2,6-difluoro benzoyl) urea. Chlorfluazuron is chitin synthesis inhibitor, has stomach poison function and action of contace poison, and the various pests such as lepidopteran, Hymenoptera, Coleoptera are had good preventive and therapeutic effect, but the insects such as aphid, leafhopper, plant hopper is invalid. Chlorfluazuron is low to people, animal toxicity, to fish, birds, honeybee and most natural enemies security, is suitable for the integrated control of insect.
Penta described pyrrole worm guanidine and the insect-killing composition of chlorfluazuron, the mechanism of action of two effective constituents is different, and both are composite, have certain complementary action and synergism.
In some embodiments of the invention, the mass ratio of described penta pyrrole worm guanidine and chlorfluazuron is 1:5��3:1.
In some embodiments of the invention, the mass ratio of described penta pyrrole worm guanidine and chlorfluazuron is 2:1��3:1.
As preferably, the mass ratio of described penta pyrrole worm guanidine and chlorfluazuron is 1:5,1:1,2:1 or 3:1.
Present invention also offers the application of above-mentioned insect-killing composition in control paddy rice and/or vegetables pest. In some embodiments of the invention, insect is rice grub, wheat insect or vegetables pest, it is possible to water prevention rice pest, wheat insect or vegetables pest separately, it is also possible to water prevention rice pest, wheat insect or vegetables pest simultaneously. Using method the present invention is in this no limit.
In some embodiments of the invention, described insect is sucking pest.
In some embodiments of the invention, described insect is planthopper and/or Cnaphalocrocis medinali(rice leaf roller).
Present invention also offers a kind of pesticide preparation, comprise above-mentioned insect-killing composition.
In some embodiments of the invention, the mass percentage of insect-killing composition described in pesticide preparation is 6��80%.
As preferably, the mass percentage of insect-killing composition described in pesticide preparation is 6%, 20%, 45% or 80%.
Penta described pyrrole worm guanidine and the insect-killing composition of chlorfluazuron, according to method known in those skilled in the art, add corresponding auxiliary agent and filler, it is possible to make missible oil, wettable powder, water dispersible granules.
In some embodiments of the invention, the formulation of described pesticide preparation is wettable powder, water dispersible granules or suspension agent.
In some embodiments of the invention, auxiliary agent is selected from a kind of in dispersion agent, wetting agent, emulsifying agent, solvent, disintegrating agent, binding agent, defoamer, antifreezing agent, thickening material or mixture that both are above.
In some embodiments of the invention, dispersion agent is selected from: one or more in sodium lignosulfonate, naphthalenesulfonic acid-formaldehyde condensate, formaldehyde condensation products vitriol, polycarboxylate, alkylphenol-polyethenoxy base phosphoric acid ester, alkylphenol polyoxyethylene, polyoxyethylene carboxylate.
In some embodiments of the invention, wetting agent is selected from: one or more in sodium lauryl sulphate, Nekal BX, spaonin powder, Sodium dodecylbenzene sulfonate, silkworm excrement, Seed of Chinese Soapberry powder, the withered powder of tea.
In some embodiments of the invention, emulsifying agent is selected from: alkyl benzene calcium sulfonate, benzyl dimethyl phenol gather one or more in oxygen ethyl ether, the poly-oxygen ethyl ether of phenyl phenol, the poly-oxygen ethyl ether of alkylphenol-formaldehyde resin, styroyl phenol poly-oxygen ethyl polypropylene-base ether, TWEEN Series, this Pan's series.
In some embodiments of the invention, solvent is selected from: dimethylbenzene, Virahol, ethanol, butanols, pimelinketone, ethyl acetate, N, one or more in dinethylformamide, methyl-sulphoxide, methylcyclohexane.
In some embodiments of the invention, disintegrating agent is selected from: one or more in wilkinite, ammonium sulfate, aluminum chloride, urea, magnesium chloride, glucose.
In some embodiments of the invention, binding agent is selected from: one or more in diatomite, cyclodextrin, rosin, starch, PVA, carboxymethyl (ethyl) sodium cellulosate.
In some embodiments of the invention, defoamer is selected from: one or more in organic silicone oil, ethanol, epoxy soybean oil, silicone compound, C10-C20 saturated fatty acid compounds, C8-210 aliphatic alcohols compound.
In some embodiments of the invention, antifreezing agent is selected from: one or more in ethylene glycol, propylene glycol, glycerol, sorbyl alcohol, urea, polyoxyethylene glycol.
In some embodiments of the invention, thickening material is selected from: one or more in gelatin, xanthan gum, polyoxyethylene glycol, polyvinyl alcohol.
In some embodiments of the invention, filler is selected from: one or more in kaolin, diatomite, wilkinite, attapulgite, white carbon black, light calcium carbonate.
The composition of the present invention is mainly used in control planthopper and Cnaphalocrocis medinali(rice leaf roller).
The useful effect of the present invention:
(1) present composition effective active composition penta pyrrole worm guanidine and chlorfluazuron show good complementary action in given scope, and have certain synergism, and anti-effect is obviously higher than single dose, and materials are few.
(2) insect-killing composition of the present invention can have special efficacy for planthopper and Cnaphalocrocis medinali(rice leaf roller).
Embodiment
The present invention discloses a kind of insect-killing composition, preparation and purposes thereof, and those skilled in the art can use for reference content herein, and suitable improving technique parameter realizes. Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention. Method and the application of the present invention are described by better embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope, methods and applications as herein described are changed or suitably change with combination, realize and apply the technology of the present invention.
In a kind of insect-killing composition provided by the invention, preparation and purposes thereof, former medicine used, auxiliary agent and filler all can be buied by market.
Below in conjunction with embodiment, set forth the present invention further:
Embodiment 1:6% penta pyrrole worm guanidine 5 percent of hexaflumuron emulsifiable concentrate
Penta pyrrole worm guanidine 1%, chlorfluazuron 5%, benzyl dimethyl phenol gather oxygen ethyl ether 6%, phenyl phenol gathers oxygen ethyl ether 8%, methyl-sulphoxide 10%, dimethylbenzene supply 100%. Above raw material is prepared routinely the obtained 6% penta pyrrole worm guanidine 5 percent of hexaflumuron emulsifiable concentrate of the method mixing of missible oil.
Embodiment 2:20% penta pyrrole worm guanidine chlorfluazuron suspension agent
Penta pyrrole worm guanidine 10%, chlorfluazuron 10%, spaonin powder 5%, sodium lignosulfonate 4%, silicone oil 1%, ethylene glycol 2%, Xylo-Mucine 5%, deionized water supply 100%. Above raw material is prepared routinely the obtained 20% penta pyrrole worm guanidine chlorfluazuron suspension agents of the method mixing of suspension agent.
Embodiment 3:45% penta pyrrole worm guanidine chlorfluazuron wettable powder
Penta pyrrole worm guanidine 30%, chlorfluazuron 15%, the withered powder 6% of tea, ethanol 3%, sodium lignosulfonate 7%, diatomite supply 100%. Above raw material is conveniently prepared the method mixing of wettable powder, is crushed to certain fineness, then through being mixed into product, obtains the penta pyrrole worm guanidine chlorfluazuron wettable powder of 45%.
Embodiment 4:80% penta pyrrole worm guanidine chlorfluazuron water dispersible granules
Penta pyrrole worm guanidine 60%, chlorfluazuron 20%, sodium lignosulfonate 4%, ammonium sulfate 2.5%, polycarboxylate 3.5%, starch 2%, kaolin supply 100%. The method mixing that above raw material is conveniently prepared water dispersible granules obtains the penta pyrrole worm guanidine chlorfluazuron water dispersible granules of 80%.
Embodiment 5: penta pyrrole worm guanidine and the composite Toxicity Determination of chlorfluazuron
1, penta pyrrole worm guanidine and the test of chlorfluazuron different ratio co-toxicity
1.1 reagent agent
The 96% penta pyrrole former medicines of worm guanidine, the 95% former medicine of chlorfluazuron, penta pyrrole worm guanidine and chlorfluazuron different ratios mixture preparation
1.2 for examination worm source
Planthopper, Cnaphalocrocis medinali(rice leaf roller)
1.3 single dose measuring methods
Adopting spray method, culture dish is placed in Potter spray tower and tries to get to the heart of a matter and quantitatively spray, spray value is 1ml, takes out examination worm and raise after liquid sedimentation 1min. Do not have process to be no less than 4 repetitions, and establish blank. Process and after 96 hours, check examination worm death condition. Mortality ratio Abbott formula correction, then according to logarithm-mortality ratio probability value analytical method, obtains virulence regression equation and lethal.
The joint toxicity measuring method of 1.4 different ratio
Toxicity test result according to single dose, adopts the method for above-mentioned 1.3 to measure by penta pyrrole worm guanidine of different ratio and chlorfluazuron, calculates LC50, and presses the abundant method of Sun Yun and calculate cotoxicity coefficient (CTC), and by following formulae discovery:
ATI=(S/M) * 100
In formula:
ATI mixture actual measurement toxicity index;
The LC50 of S standard sterilant, unit mg/l;
The LC50 of M mixture, unit mg/l.
TTI=TIA*PA+TIB*PB
In formula:
The theoretical toxicity index of TTI mixture;
TIAThe theoretical toxicity index of A medicament;
PAThe percentage composition of A medicament in mixture, unit is percentage;
TIBThe theoretical toxicity index of B medicament;
PBThe percentage composition of B medicament in mixture, unit is percentage;
CTC=(ATI/TTI) * 100
In formula:
CTC cotoxicity coefficient;
ATI mixture actual measurement toxicity index;
The theoretical toxicity index of TTI mixture.
Cotoxicity coefficient (CTC) >=120 shows as synergism; CTC��80 show as antagonistic action; 80 < CTC < 120 show as summation action, the results are shown in Table 1, table 2.
Table 1: penta pyrrole worm guanidine and chlorfluazuron different ratio are to Cnaphalocrocis medinali(rice leaf roller) toxicity test result
| Medicament | LC50(mg/l) | TTI | ATI | CTC |
| Penta pyrrole worm guanidine | 7.94 | - | 100 | - |
| Chlorfluazuron | 4.21 | - | 188.60 | - |
| Penta pyrrole worm guanidine: chlorfluazuron=1:5 | 3.62 | 173.83 | 219.34 | 126.2 |
| Penta pyrrole worm guanidine: chlorfluazuron=1:1 | 3.56 | 144.30 | 223.03 | 154.6 |
| Penta pyrrole worm guanidine: chlorfluazuron=2:1 | 3.42 | 129.53 | 232.16 | 179.2 |
| Penta pyrrole worm guanidine: chlorfluazuron=3:1 | 3.15 | 122.15 | 252.06 | 206.4 |
Penta pyrrole worm guanidine and composite its cotoxicity coefficient of each ratio of chlorfluazuron are all higher than 120 as can be seen from Table 1, illustrate that these two kinds of compositions have obvious synergism after composite, it thus is seen that both are composite has very strong reasonableness.
Table 2: penta pyrrole worm guanidine and chlorfluazuron different ratio are to planthopper toxicity test result
| Medicament | LC50(mg/l) | TTI | ATI | CTC |
| Penta pyrrole worm guanidine | 8.72 | - | 100.00 | - |
| Chlorfluazuron | 17.42 | - | 50.06 | - |
| Penta pyrrole worm guanidine: chlorfluazuron=1:5 | 9.21 | 58.38 | 94.68 | 162.2 |
| Penta pyrrole worm guanidine: chlorfluazuron=1:1 | 6.96 | 75.03 | 125.29 | 167.0 |
| Penta pyrrole worm guanidine: chlorfluazuron=2:1 | 5.67 | 83.35 | 153.79 | 184.5 |
| Penta pyrrole worm guanidine: chlorfluazuron=3:1 | 5.19 | 87.51 | 168.02 | 192.0 |
Penta pyrrole worm guanidine and composite its cotoxicity coefficient of each ratio of chlorfluazuron are all higher than 120 as can be seen from Table 2, illustrate that these two kinds of compositions have obvious synergism after composite, as can be seen here, both are composite has very strong reasonableness, and synergism is particularly remarkable when 2:1 and 3:1 penta pyrrole worm guanidine content increases.
Embodiment 6: penta pyrrole worm guanidine and the composite test of pesticide effectiveness of chlorfluazuron
Field medicine effect test is carried out by the compound preparation of embodiment 1-4 gained and each component single dose. The calm weather without rain is selected to test, in whole stage of investigation without rainfall, taking Cnaphalocrocis medinali(rice leaf roller) and planthopper as subjects, each dispenser interval phase is 7d, altogether dispenser 2 times, with 3d after last dispenser, 7d, 21d investigate Cnaphalocrocis medinali(rice leaf roller) and planthopper respectively, and calculate anti-effect. Anti-effect calculates as follows:
Prevention effect (%)=(1-TaCb/TbCa) �� 100%
In formula: TaFor the individual amount survived after preventing and treating in treatment zone; TbFor the individual amount of survival before the control for the treatment of zone; CaFor the individual amount survived after preventing and treating in check plot; CaFor the individual amount of survival before the control of check plot.
Test-results is as follows:
1, penta pyrrole worm guanidine chlorfluazuron composition is to Cnaphalocrocis medinali(rice leaf roller) field test, in table 3.
Table 3: penta pyrrole worm guanidine chlorfluazuron composition is to the prevention effect of Cnaphalocrocis medinali(rice leaf roller)
As can be seen from Table 3, penta pyrrole worm guanidine and chlorfluazuron composite after can effectively prevent and treat Cnaphalocrocis medinali(rice leaf roller), prevention effect be better than comparison medicament, the lasting period is long, and after last dispenser, the anti-effect of 21d reaches more than 90%, and test scope of medication in, target crop is not had poisoning.
2, penta pyrrole worm guanidine chlorfluazuron composition is to planthopper field test, in table 4.
Table 4: penta pyrrole worm guanidine chlorfluazuron composition is to the prevention effect of planthopper
As can be seen from Table 4, chlorfluazuron is invalid to planthopper, but penta pyrrole worm guanidine and chlorfluazuron composite after can effectively prevent and treat planthopper, prevention effect is better than single dose penta pyrrole worm guanidine, lasting period is long, after last dispenser, the anti-effect of 21d reaches more than 90%, and in test scope of medication, target crop is not had poisoning.
Comprehensive above test-results can be found out, penta pyrrole worm guanidine and chlorfluazuron press different ratios composite after, not only the prevention effect of agricultural insect pest is significantly improved, and expand the scope of control Agricultural pests, when prevention effect is identical, greatly reduce the usage quantity of effective constituent, thus reduce the harm to environment and delayed the resistance of insect.
The above is only the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. an insect-killing composition, it is characterised in that, it is made up of penta pyrrole worm guanidine and chlorfluazuron;
The mass ratio of described penta pyrrole worm guanidine and chlorfluazuron is 1:5��3:1.
2. insect-killing composition according to claim 1, it is characterised in that, the mass ratio of described penta pyrrole worm guanidine and chlorfluazuron is 2:1��3:1.
3. application in control paddy rice and/or vegetables pest of insect-killing composition according to the arbitrary item of claim 1 to 2.
4. application according to claim 3, it is characterised in that, described insect is sucking pest.
5. application according to claim 4, it is characterised in that, described insect is planthopper and/or Cnaphalocrocis medinali(rice leaf roller).
6. a pesticide preparation, it is characterised in that, comprise the insect-killing composition as described in item as arbitrary in claim 1 to 2.
7. pesticide preparation according to claim 6, it is characterised in that, the mass percentage of described insect-killing composition is 6��80%.
8. pesticide preparation according to claim 6, it is characterised in that, the formulation of described pesticide preparation is wettable powder, water dispersible granules or suspension agent.
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| WO2011061156A1 (en) * | 2009-11-17 | 2011-05-26 | Bayer Cropscience Ag | Active compound combinations |
| CN103039475A (en) * | 2011-10-17 | 2013-04-17 | 南京华洲药业有限公司 | Synergistic insecticidal composition containing tolfenpxrad and chlorfluazuron and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011061156A1 (en) * | 2009-11-17 | 2011-05-26 | Bayer Cropscience Ag | Active compound combinations |
| CN103039475A (en) * | 2011-10-17 | 2013-04-17 | 南京华洲药业有限公司 | Synergistic insecticidal composition containing tolfenpxrad and chlorfluazuron and application thereof |
Non-Patent Citations (2)
| Title |
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| Activity Relationships.《Journal of Agricultural and Food Chemistry》.2012,第60卷(第20期),第5028-5034页. * |
| Wang Su, et al.N-Nitro-2-hydrocarbylidenehydrazinecarboximidamides: Design,Synthesis, Crystal Structure, Insecticidal Activity, and Structure− * |
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