CN104336045A - Insecticide composition and preparation and use thereof - Google Patents
Insecticide composition and preparation and use thereof Download PDFInfo
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- CN104336045A CN104336045A CN201410566503.5A CN201410566503A CN104336045A CN 104336045 A CN104336045 A CN 104336045A CN 201410566503 A CN201410566503 A CN 201410566503A CN 104336045 A CN104336045 A CN 104336045A
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- pymetrozine
- pyrrole worm
- worm guanidine
- penta pyrrole
- pesticidal combination
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Abstract
The invention relates to the technical field of pesticide, and in particular relates to an insecticide composition and preparation and use thereof. Active ingredients of the insecticide composition are guadipyr and pymetrozine which have obvious synergism in a given range, the preventing effect is obviously higher than that of a single dosage, and the required material is less. The insecticide composition has special effect on rice planthopper and wheat and vegetable aphid.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of Pesticidal combination and preparation, purposes.
Background technology
Sucking pest individuality is little, and initial stage of origination shape of being often injured is not obvious, is easily ignored by people, but quantity is extremely many, often infests on spray, leaf, bud, bud, fruit, draw water, rob its nutrition, cause branches and leaves and steamed twisted roll song, even whole strain is withered or dead.Bring out disease, insect itself is the communication media of virus disease sometimes simultaneously.
Rice fulgorid, Homoptera Delphacidae insect, except thorn inhales plant juice hazard rice, makes growth retardation, and time serious, rice clump is agglomerating withered, outside the dead stalk lodging in even full field, lays eggs and also can stab plant, destroy conducting tissue, hinder nutriment transport and propagate disease.
Aphid, also known as aphid, aphid etc., belongs to Homoptera Aphidiadae more, is the insect of sucking mouth parts, is often clustered in the positions such as blade, tender stem, bud, terminal bud, and thorn inhales juice, makes leaf-shrinkage, curling, lopsided, causes the even whole strain of die back dead time serious.The honeydew of aphid secretion also can bring out sooty mould, virus disease cause ant infestations etc.
At present, can the agricultural chemicals of simultaneously above-mentioned insect have not been reported.Therefore, compounded pesticides control rice fulgorid and the aphid of developing new efficient, low toxicity, safety have great importance.
Summary of the invention
In view of this, the invention provides a kind of Pesticidal combination and preparation, purposes.Composition effective active composition penta pyrrole worm guanidine provided by the invention and pymetrozine show significant synergistic effect in given scope, and preventive effect is apparently higher than single dose, and materials are few.This Pesticidal combination can have special efficacy for rice fulgorid and wheat and vegetable aphid.
In order to realize foregoing invention object, the invention provides following technical scheme:
The invention provides a kind of Pesticidal combination, comprise penta pyrrole worm guanidine and pymetrozine.
Penta pyrrole worm guanidine is the method for anabasine and contracting amine urea insecticide being spliced by MOLECULE DESIGN and active substructure, is set up in same a part by active structure, makes it have the new and effective Pesticidal compound of nicotinoids and 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 makes it more remarkable and the lasting period is longer than anabasine insecticide preventive effect.
Pymetrozine is pyridines insecticide, to higher mammal low toxicity, has the selectivity of height between insect.Utilize electricity to penetrate diagram technology and show that pymetrozine produces lancet blocking effect after touching sucking pest at once, and be irreversible, finally make insect hunger lethal.
Penta described pyrrole worm guanidine and the Pesticidal combination of pymetrozine, the mechanism of action of two active ingredients is different, and both are composite, show through the embodiment of the present invention, have certain complementation and synergistic effect.
In some embodiments of the invention, the mass ratio of described penta pyrrole worm guanidine and pymetrozine is 1:20 ~ 30:1.
In other embodiments of the present invention, the mass ratio of described penta pyrrole worm guanidine and pymetrozine is 1:10 ~ 30:1.
In other embodiments of the present invention, the mass ratio of described penta pyrrole worm guanidine and pymetrozine is 10:1 ~ 20:1.
Preferably, the mass ratio of described penta pyrrole worm guanidine and pymetrozine is 1:20,1:10,1:1,10:1,20:1 or 30:1.
Present invention also offers the application of above-mentioned Pesticidal combination in pest control.In some embodiments of the invention, insect is rice grub, wheat pest or vegetable-crop pest-insect, can water prevention rice pest, wheat pest or vegetable-crop pest-insect separately, also can water prevention rice pest, wheat pest or vegetable-crop pest-insect simultaneously.Using method the present invention is in this no limit.
In some embodiments of the invention, the described insect of above-mentioned Pesticidal combination control is sucking pest.
In some embodiments of the invention, described insect is rice fulgorid and/or aphid.
Present invention also offers a kind of insecticidal preparation, comprise above-mentioned Pesticidal combination.
In some embodiments of the invention, in insecticidal preparation provided by the invention, the mass percentage of described Pesticidal combination is 21 ~ 77.5%.
As preferably, in insecticidal preparation provided by the invention, the mass percentage of described Pesticidal combination is 21%, 27.5%, 50%, 55%, 63% or 77.5%.
Penta described pyrrole worm guanidine and the Pesticidal combination of pymetrozine, according to method known in those skilled in the art, add corresponding auxiliary agent and filler, can make wetting powder, water dispersible granules, suspending agent.The present invention is not construed as limiting formulation at this, and the formulation of the insecticidal preparation that acceptable auxiliary agent or filler and above-mentioned Pesticidal combination are prepared in any agricultural chemicals, all in protection scope of the present invention.
In some embodiments of the invention, the formulation of described insecticidal preparation is wetting powder, water dispersible granules or suspending agent.
In some embodiments of the invention, auxiliary agent is a kind of or both the above mixtures in dispersant, wetting agent, disintegrant, binding agent, defoamer, antifreeze, thickener.
In some embodiments of the invention, dispersant is selected from: one or more in sodium lignin sulfonate, naphthalenesulfonic acid-formaldehyde condensate, formaldehyde condensation products sulphate, polycarboxylate, alkylphenol-polyethenoxy base phosphate, alkylphenol polyoxyethylene, polyoxyethylene carboxylate.
In some embodiments of the invention, wetting agent is selected from: one or more in lauryl sodium sulfate, Nekal BX, spaonin powder, neopelex, silkworm excrement, soapberry powder, the withered powder of tea.
In some embodiments of the invention, disintegrant is selected from: one or more in bentonite, ammonium sulfate, aluminium 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: organic silicone oil, ethanol, epoxidized soybean oil, silicone compound, C
10-C
20saturated fat acid compounds, C
8-C
210one or more in aliphatic alcohols compound.
In some embodiments of the invention, antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine, sorbierite, urea, polyethylene glycol.
In some embodiments of the invention, thickener is selected from: one or more in gelatin, xanthans, polyethylene glycol, polyvinyl alcohol.
In some embodiments of the invention, filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, precipitated calcium carbonate.
Composition of the present invention is mainly used in control rice fulgorid and aphid.
Beneficial effect of the present invention:
(1) present composition effective active composition penta pyrrole worm guanidine and pymetrozine show significant synergistic effect in given scope, and preventive effect is apparently higher than single dose, and materials are few.
(2) Pesticidal combination of the present invention can have special efficacy for rice fulgorid and wheat and vegetable aphid.
Embodiment
The invention discloses a kind of Pesticidal combination and preparation, purposes, those skilled in the art can use for reference present disclosure, 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 of the present invention and application are described by preferred 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 Pesticidal combination provided by the invention and preparation thereof, purposes, former medicine used and auxiliary agent, filler all can be buied by market.
Below in conjunction with embodiment, set forth the present invention further:
Embodiment 1:21% penta pyrrole worm guanidine pymetrozine suspension agent
Penta pyrrole worm guanidine 1%, pymetrozine 20%, spaonin powder 3%, sodium lignin sulfonate 5%, silicone oil 0.5%, ethylene glycol 2%, sodium carboxymethylcellulose 5%, deionized water supply 100%.Above raw material is prepared routinely the obtained 21% penta pyrrole worm guanidine pymetrozine suspension agents of the method mixing of suspending agent.
Embodiment 2:27.5% penta pyrrole worm guanidine pymetrozine suspension agent
Penta pyrrole worm guanidine 2.5%, pymetrozine 25%, spaonin powder 2%, sodium lignin sulfonate 3%, silicone oil 0.5%, ethylene glycol 1%, sodium carboxymethylcellulose 4%, deionized water supply 100%.Above raw material is prepared routinely the obtained 27.5% penta pyrrole worm guanidine pymetrozine suspension agents of the method mixing of suspending agent.
Embodiment 3:50% penta pyrrole worm guanidine pymetrozine wetting powder
Penta pyrrole worm guanidine 25%, pymetrozine 25%, the withered powder 5% of tea, ethanol 2%, sodium lignin sulfonate 5%, diatomite supply 100%.Above raw material is conveniently prepared the method mixing of wetting powder, be crushed to certain fineness, then through being mixed into product, obtain the penta pyrrole worm guanidine pymetrozine wetting powder of 50%.
Embodiment 4:55% penta pyrrole worm guanidine pymetrozine wetting powder
Penta pyrrole worm guanidine 50%, pymetrozine 5%, the withered powder 4% of tea, ethanol 1.5%, sodium lignin sulfonate 4%, diatomite supply 100%.Above raw material is conveniently prepared the method mixing of wetting powder, be crushed to certain fineness, then through being mixed into product, obtain the penta pyrrole worm guanidine pymetrozine wetting powder of 55%.
Embodiment 5:63% penta pyrrole worm guanidine pymetrozine water dispersing granule
Penta pyrrole worm guanidine 60%, pymetrozine 3%, sodium lignin sulfonate 5%, ammonium sulfate 2%, polycarboxylate 3%, starch 2%, kaolin supply 100%.The method mixing of above raw material conveniently being prepared water dispersible granules obtains the penta pyrrole worm guanidine pymetrozine water dispersing granule of 63%.
Embodiment 6:77.5% penta pyrrole worm guanidine pymetrozine water dispersing granule
Penta pyrrole worm guanidine 75%, pymetrozine 2.5%, sodium lignin sulfonate 4%, ammonium sulfate 2%, polycarboxylate 2.5%, starch 2.5%, kaolin supply 100%.The method mixing of above raw material conveniently being prepared water dispersible granules obtains the penta pyrrole worm guanidine pymetrozine water dispersing granule of 77.5%.
The Toxicity Determination of embodiment 7: penta pyrrole worm guanidine and Pyraphione compound
1, penta pyrrole worm guanidine and the test of pymetrozine different ratio co-toxicity
1.1 reagent agent
The 96% penta former medicine of pyrrole worm guanidine, the former medicine of 95% pymetrozine, penta pyrrole worm guanidine and pymetrozine different proportion mixture preparations
1.2 for examination worm source
Cabbage aphid, rice fulgorid
1.3 single dose assay methods
Dip method is adopted to cabbage aphid, two former medicines is all used a small amount of acetone solution, being diluted to five strength solution of equal difference with the Tween solution of 0.1%, is diluted in for subsequent use in beaker, and with clear water in contrast.Cabbage aphid of the same size and rice fulgorid adult are flooded 5s in the liquid of leaching worm cage, is placed in the culture dish of 9 ㎝ after sucking unnecessary liquid, in ware, is placed with fresh cabbage leaves.Do not have concentration process 20, repeat 3 times, if blank, after 48h, check lethality.Lethality Abbott formula correction, then according to logarithm-lethality probability value analytical method, obtains virulence regression equation and lethal.
Adopt spray-on process to rice fulgorid, culture dish is placed in Potter spray tower and tries to get to the heart of a matter and carry out metered dose, 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 after 96 hours and check examination worm death condition.Lethality Abbott formula correction, then according to logarithm-lethality probability value analytical method, obtains virulence regression equation and lethal.
The joint toxicity measuring method of 1.4 different ratio
According to the toxicity test result of single dose, measure by penta pyrrole worm guanidine of different ratio and the method for pymetrozine employing above-mentioned 1.3, calculate LC50, and press abundant method calculating co-toxicity coefficient (CTC) of Sun Yun, and by following formulae discovery:
ATI＝(S/M)*100
In formula:
ATI---mixture actual measurement toxicity index;
S---the LC50 of standard pesticide agent, unit mg/l;
The LC50 of M---mixture, unit mg/l.
TTI＝TI
A*P
A+TI
B*P
B
In formula:
The theoretical toxicity index of TTI---mixture;
TI
a---the theoretical toxicity index of A medicament;
P
a---the percentage composition of A medicament in mixture, unit is percentage;
TI
b---the theoretical toxicity index of B medicament;
P
b---the percentage composition of B medicament in mixture, unit is percentage;
CTC＝(ATI/TTI)*100
In formula:
CTC---co-toxicity coefficient;
ATI---mixture actual measurement toxicity index;
The theoretical toxicity index of TTI---mixture.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; CTC≤80 show as antagonism; 80 < CTC < 120 show as summation action, the results are shown in Table 1, table 2.
Table 1: penta pyrrole worm guanidine and pymetrozine different ratio are to cabbage aphid toxicity test result
| Medicament | LC50(mg/l) | TTI | ATI | CTC |
| Penta pyrrole worm guanidine | 10.25 | － | 100 | － |
| Pymetrozine | 5.12 | － | 200.20 | － |
| Penta pyrrole worm guanidine: pymetrozine=1:20 | 4.02 | 195.42 | 254.98 | 130.5 |
| Penta pyrrole worm guanidine: pymetrozine=1:10 | 4.09 | 191.09 | 250.61 | 131.2 |
| Penta pyrrole worm guanidine: pymetrozine=1:1 | 4.22 | 150.10 | 242.89 | 161.8 |
| Penta pyrrole worm guanidine: pymetrozine=10:1 | 5.21 | 109.11 | 196.74 | 180.3 |
| Penta pyrrole worm guanidine: pymetrozine=20:1 | 5.35 | 104.77 | 191.59 | 182.9 |
| Penta pyrrole worm guanidine: pymetrozine=30:1 | 5.72 | 103.23 | 179.20 | 173.6 |
Its co-toxicity coefficient of each ratio of penta pyrrole worm guanidine and Pyraphione compound is all higher than 120 as can be seen from Table 1, and illustrate that these two kinds of compositions have obvious synergistic effect after composite, as can be seen here, both are composite has very strong reasonability.
Table 2: penta pyrrole worm guanidine and pymetrozine different ratio are to rice fulgorid toxicity test result
| Medicament | LC50(mg/l) | TTI | ATI | CTC |
| Penta pyrrole worm guanidine | 9.54 | － | 100 | － |
| Pymetrozine | 4.79 | － | 199.16 | － |
| Penta pyrrole worm guanidine: pymetrozine=1:20 | 3.20 | 194.44 | 298.13 | 153.3 |
| Penta pyrrole worm guanidine: pymetrozine=1:10 | 3.75 | 190.15 | 254.40 | 133.8 |
| Penta pyrrole worm guanidine: pymetrozine=1:1 | 4.21 | 149.58 | 226.60 | 151.5 |
| Penta pyrrole worm guanidine: pymetrozine=10:1 | 4.52 | 109.01 | 211.06 | 193.6 |
| Penta pyrrole worm guanidine: pymetrozine=20:1 | 5.17 | 104.72 | 184.53 | 176.2 |
| Penta pyrrole worm guanidine: pymetrozine=30:1 | 5.34 | 103.20 | 178.65 | 173.1 |
Its co-toxicity coefficient of each ratio of penta pyrrole worm guanidine and Pyraphione compound is all higher than 120 as can be seen from Table 2, illustrate that these two kinds of compositions have obvious synergistic effect after composite, as can be seen here, both are composite has very strong reasonability, and synergistic effect is particularly remarkable when 10:1,20:1,30:1.
The test of pesticide effectiveness of embodiment 8: penta pyrrole worm guanidine and Pyraphione compound
Field medicine effect test is carried out by the complex preparation of embodiment 1-6 gained and each component single dose.The calm weather without rain is selected to test, in all stage of investigation without rainfall, with cabbage aphid and rice fulgorid for subjects, each dispenser interval is 7d, and dispenser 3 times altogether, with 3d after last dispenser, 7d, 21d investigate cabbage aphid and rice fulgorid respectively, and calculate preventive effect.Preventive effect calculates as follows:
Control efficiency (%)=(1-T
ac
b/ T
bc
a) × 100%
In formula: T
afor the individual amount of survival after treatment region control; T
bfor the individual amount of survival before treatment region control; C
afor the individual amount of survival after the control of check plot; C
afor the individual amount of survival before the control of check plot.
Result of the test is as follows:
1, penta pyrrole worm guanidine pymetrozine composition is to cabbage aphid field trial, the results are shown in Table 3.
Table 3: penta pyrrole worm guanidine pymetrozine composition is to the control efficiency of cabbage aphid
As can be seen from Table 3, effectively can prevent and treat cabbage aphid after penta pyrrole worm guanidine and Pyraphione compound, control efficiency is better than contrasting medicament, and the lasting period is long, and after last dispenser, 21d preventive effect reaches more than 90%, and in test scope of medication, does not have poisoning to Target crops.
2, penta pyrrole worm guanidine pymetrozine composition is to rice fulgorid field trial, the results are shown in Table 4.
Table 4: penta pyrrole worm guanidine pymetrozine composition is to the control efficiency of rice fulgorid
As can be seen from Table 4, effectively can prevent and treat cabbage aphid after penta pyrrole worm guanidine and Pyraphione compound, control efficiency is better than contrasting medicament, and the lasting period is long, and after last dispenser, 21d preventive effect reaches more than 89%, and in test scope of medication, does not have poisoning to Target crops.
Comprehensive above result of the test can be found out, penta pyrrole worm guanidine and pymetrozine press different proportion composite after, the control efficiency of agricultural insect pest is significantly improved, when control efficiency is identical, greatly reduce the usage amount of active ingredient, thus reduce the harm of environment and delayed the resistance of insect.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a Pesticidal combination, is characterized in that, comprises penta pyrrole worm guanidine and pymetrozine.
2. Pesticidal combination according to claim 1, is characterized in that, the mass ratio of described penta pyrrole worm guanidine and pymetrozine is 1:20 ~ 30:1.
3. Pesticidal combination according to claim 1, is characterized in that, the mass ratio of described penta pyrrole worm guanidine and pymetrozine is 1:10 ~ 30:1.
4. Pesticidal combination according to claim 1, is characterized in that, the mass ratio of described penta pyrrole worm guanidine and pymetrozine is 10:1 ~ 20:1.
5. the application of the Pesticidal combination according to any one of Claims 1-4 in control paddy rice, wheat and/or vegetable-crop pest-insect.
6. application according to claim 5, is characterized in that, described insect is sucking pest.
7. application according to claim 6, is characterized in that, described insect is rice fulgorid and/or aphid.
8. an insecticidal preparation, is characterized in that, comprises the Pesticidal combination as described in any one of Claims 1-4.
9. insecticidal preparation according to claim 8, is characterized in that, the mass percentage of described Pesticidal combination is 21 ~ 77.5%.
10. insecticidal preparation according to claim 8, is characterized in that, the formulation of described insecticidal preparation is wetting powder, water dispersible granules or suspending agent.
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| CN104872167A (en) * | 2015-05-25 | 2015-09-02 | 广东中迅农科股份有限公司 | Insecticidal composition containing guadipyr and pymetrozine |
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| CN102308839A (en) * | 2011-10-11 | 2012-01-11 | 合肥星宇化学有限责任公司 | Insecticidal composition and its preparation and application |
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| CN101422153A (en) * | 2008-11-13 | 2009-05-06 | 陕西韦尔奇作物保护有限公司 | Insecticidal composition containing pymetrozine |
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