CN101861874A - Methothrin phoxim composite pesticide - Google Patents
Methothrin phoxim composite pesticide Download PDFInfo
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- CN101861874A CN101861874A CN201010231547A CN201010231547A CN101861874A CN 101861874 A CN101861874 A CN 101861874A CN 201010231547 A CN201010231547 A CN 201010231547A CN 201010231547 A CN201010231547 A CN 201010231547A CN 101861874 A CN101861874 A CN 101861874A
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- methothrin
- phoxim
- composite pesticide
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- 229950001664 phoxim Drugs 0.000 title claims abstract description 74
- GQNBIMLHUAWKHJ-UHFFFAOYSA-N [4-(methoxymethyl)phenyl]methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate Chemical compound C1=CC(COC)=CC=C1COC(=O)C1C(C)(C)C1C=C(C)C GQNBIMLHUAWKHJ-UHFFFAOYSA-N 0.000 title claims abstract description 73
- ATROHALUCMTWTB-OWBHPGMISA-N phoxim Chemical compound CCOP(=S)(OCC)O\N=C(\C#N)C1=CC=CC=C1 ATROHALUCMTWTB-OWBHPGMISA-N 0.000 title claims abstract description 73
- 239000000575 pesticide Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000003814 drug Substances 0.000 claims abstract description 50
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 13
- 238000009313 farming Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007900 aqueous suspension Substances 0.000 claims description 8
- 210000000481 breast Anatomy 0.000 claims description 8
- 238000009472 formulation Methods 0.000 claims description 6
- IVKNZCBNXPYYKL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 IVKNZCBNXPYYKL-UHFFFAOYSA-N 0.000 claims description 5
- -1 and wherein Substances 0.000 claims description 5
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical group [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000000306 component Substances 0.000 claims description 2
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- 241000238631 Hexapoda Species 0.000 abstract description 19
- 241000607479 Yersinia pestis Species 0.000 abstract description 9
- 229940079593 drug Drugs 0.000 abstract description 8
- 230000000749 insecticidal effect Effects 0.000 abstract description 8
- 238000001228 spectrum Methods 0.000 abstract description 5
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- 231100000636 lethal dose Toxicity 0.000 description 4
- 231100000225 lethality Toxicity 0.000 description 4
- 231100000820 toxicity test Toxicity 0.000 description 4
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- 239000003986 organophosphate insecticide Substances 0.000 description 3
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- 231100000419 toxicity Toxicity 0.000 description 3
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
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- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
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- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000003197 gene knockdown Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 239000002728 pyrethroid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- CXBMCYHAMVGWJQ-CABCVRRESA-N (1,3-dioxo-4,5,6,7-tetrahydroisoindol-2-yl)methyl (1r,3r)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate Chemical compound CC1(C)[C@H](C=C(C)C)[C@H]1C(=O)OCN1C(=O)C(CCCC2)=C2C1=O CXBMCYHAMVGWJQ-CABCVRRESA-N 0.000 description 1
- 241000218475 Agrotis segetum Species 0.000 description 1
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- 241000218631 Coniferophyta Species 0.000 description 1
- 239000005946 Cypermethrin Substances 0.000 description 1
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- 241000346285 Ostrinia furnacalis Species 0.000 description 1
- WNCBICRHUMGMOW-UHFFFAOYSA-N P(=S)(O)(O)O.C1(=CC=CC=C1)CC#N Chemical compound P(=S)(O)(O)O.C1(=CC=CC=C1)CC#N WNCBICRHUMGMOW-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 241001622642 Parnara bada Species 0.000 description 1
- 241000721451 Pectinophora gossypiella Species 0.000 description 1
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- 241000176086 Sogatella furcifera Species 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 241001454293 Tetranychus urticae Species 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 241001238452 Tortrix Species 0.000 description 1
- OIPILFWXSMYKGL-UHFFFAOYSA-N acetylcholine Chemical compound CC(=O)OCC[N+](C)(C)C OIPILFWXSMYKGL-UHFFFAOYSA-N 0.000 description 1
- 229960004373 acetylcholine Drugs 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 229940048961 cholinesterase Drugs 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 229960005424 cypermethrin Drugs 0.000 description 1
- KAATUXNTWXVJKI-UHFFFAOYSA-N cypermethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 KAATUXNTWXVJKI-UHFFFAOYSA-N 0.000 description 1
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- 238000004817 gas chromatography Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 230000010534 mechanism of action Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229960000490 permethrin Drugs 0.000 description 1
- RLLPVAHGXHCWKJ-UHFFFAOYSA-N permethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 RLLPVAHGXHCWKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229960005199 tetramethrin Drugs 0.000 description 1
- 229940098465 tincture Drugs 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a methothrin phoxim composite pesticide, comprises effective active ingredients, auxiliary agent and solvent; wherein the effective active ingredients accounts 2-60% of weight percent of finished product drug, and the effective active ingredients are composed of methothrin and phoxim by weight ratio of 1:90 to 90:1. Compared with the existing single pesticide, the composite pesticide of the invention has the advantages that synergy is obvious, insecticidal activity is greatly improved, insecticidal spectrum is broadened, drug resistance of insect pest is slowed down, and medication cost is greatly reduced; as methothrin and phoxim all have the characteristic of easy degradability, methothrin phoxim composite pesticide can be easily degraded in the environment, pollution is reduced, and pesticide residue is reduced.
Description
Technical field
The present invention relates to a kind of agricultural chemicals of preventing and treating pest, in particular to a kind of effective active composition compounded pesticides that is methothrin and phoxim.
Background technology
China dry crop mainly contains vegetables, tealeaves, fruit tree, cotton, corn, wheat class, herbage etc.These dry crops all can be subjected to pest invasion and attack in various degree such as disease Chinese caterpillar fungus in its process of growth, for output and the quality of crop all increases, will use agricultural chemicals inevitably.
China brassicaceous vegetable insect mainly contains following several: diamond-back moth, cabbage caterpillar, prodenia litura, beet armyworm, vegetable aphid etc.
Insect on China's tealeaves mainly contains: looper, tealeaves noctuid, tealeaves spot moth, tea caterpillar, leafhopper, aleyrodid, scale insect etc.
Insect on the fruit tree mainly contains: the scale insect on aphid, leaf beetle, two spotted spider mite and the conifer tree etc.
Insect on the cotton mainly contains: cotton bollworm, cotten aphid, thrips, pink bollworm etc.
Insect on the corn mainly contains: mythimna separata, corn borer, beet armyworm, prodenia litura, cotton bollworm and aphid etc.
Insect on the wheat class mainly contains: wheat aphid, suction slurry worm, evil mite etc.
Insect on the herbage mainly contains: stem maggot, mythimna separata, multiple noctuid, fringe fly, various flea beetle, cereal class aphid, red palpus fleahopper, leafhopper etc.
For a long time, people mainly rely on organic insecticide and prevent and treat the use of these crop pests, particularly single agricultural chemicals and cause it that various insecticides are produced in various degree resistance inevitably.The insecticide that pyrethroid pesticide is that a class has efficiently, be easy to decompose in the low toxicity, environment.To insect have repellent, knock down, effect such as poisoning.Because the breaking out of insect, repeatedly, during heavy dose of medication, insects such as diamond-back moth, cabbage caterpillar, cotton bollworm are speeded to above single agent resistance development speed.The organophosphorous pesticide mechanism of action is to suppress cholinesterase in the pest body, and acetylcholine is accumulated, the excited conduction that affects the nerves, thus make insect that spasm, paralysis death take place.Organophosphorus insecticide desinsection wide spectrum, insecticidal action is fast, but also is easy to generate resistance.
Methothrin (tetramethrin), chemical name 3,4,5,6-tetrahydrochysene phthalimidomethyl (±) cis, trans-chrysanthemate ester.Flying insects such as mosquito, fly are had remarkable quick knockdown effect, cockroach etc. are had the effect of well driveing, often with permethrin, efficient cypermethrin compoundedly become aerial fog pesticide, propellant or tincture, be applicable to the control of insect of family, public health, warehousing etc.
Phoxim (Phoxim), chemical name 0,0-diethyl-O-CL-oximido phenylacetonitrile thiophosphate.A kind of low toxicity, wide spectrum, organophosphorus insecticide efficiently.Insect there is strong action of contace poison.Be used to prevent and treat various pests such as the snout moth's larva of rice, the vertical tortrix moth of paddy rice, rice plant skipper, mythimna separata, cotton bollworm, rice fulgorid, cotten aphid, thrips, rice leafhopper, black cutworm, and can prevent and treat the mite class.
Agriculture chemical compounding is to improve preventive effect and expanding prevention object, slow down pest resistance to insecticide, reduce a kind of effective ways that pollute, reduce residue of pesticide, at present, yet there are no report at the compounded pesticides of methothrin and phoxim.
Summary of the invention
Technical problem to be solved by this invention provides a kind of compounded pesticides by methothrin and phoxim compound, solve methothrin and the higher problem of phoxim list agent use cost, and improved insecticidal activity, enlarged insecticidal spectrum, slowed down pest resistance to insecticide, good disinsection effect.
Technical scheme provided by the invention is:, a kind of Methothrin phoxim composite pesticide, comprise effective active component, auxiliary agent and solvent, the percentage by weight that the effective active composition accounts for the finished product medicament is 2～60%, described effective active composition is made up of methothrin and phoxim, and their weight ratio is: 1: 90～90: 1.
Described Methothrin phoxim composite pesticide, the percentage by weight of auxiliary agent and solvent is respectively 5～40% and 5～93% in the finished product medicament.
In the above-mentioned Methothrin phoxim composite pesticide, the percentage by weight that described effective active composition accounts for the finished product medicament is 40%.
Above-mentioned Methothrin phoxim composite pesticide, wherein, the weight ratio of methothrin and phoxim is 1: 1.
Above-mentioned Methothrin phoxim composite pesticide, wherein, the weight ratio of methothrin and phoxim is 1: 3.
Above-mentioned Methothrin phoxim composite pesticide, the formulation of finished product medicament are missible oil, aqueous emulsion or aqueous suspension agent.
Above-mentioned Methothrin phoxim composite pesticide, the formulation of described finished product medicament are missible oil, and wherein, auxiliary agent is DMF, farming breast 0206, farming breast 2201, and solvent is a toluene.
Above-mentioned Methothrin phoxim composite pesticide, the formulation of described finished product medicament are aqueous suspension agent, and wherein, auxiliary agent is sodium lignin sulfonate, OP-10, CMC, organic silicone, ethylene glycol, and solvent is a water.
The invention has the advantages that: with pyrethroid insecticides methothrin and organophosphorus insecticide phoxim carry out composite after, use with existing single agent and to compare notable synergistic, improved insecticidal activity greatly, enlarge insecticidal spectrum, slowed down pest resistance to insecticide, reduced drug cost significantly; Because methothrin, this two classes medicament of phoxim all have the characteristic of easy degraded, Methothrin phoxim composite pesticide is more easily degraded in environment, has reduced pollution, has reduced residue of pesticide.
Embodiment
Detailed description below by embodiment is further illustrated the present invention, but is not limitation of the present invention, only does the example explanation.
Reagent agent: the former medicine of 90% methothrin is provided by Jiangsu Yangnong Chemical Group Co., Ltd, and 90% Phoxim original medicine is provided by Jiangsu gold phoenix farmingization Co., Ltd.
Embodiment 1
The preparation of 40% methothrin phoxim emulsifiable concentrate (the former medicine of methothrin is 1: 1 with the ratio of Phoxim original medicine in the active drug composition):
Auxiliary agent is selected: DMF, farming breast 0206, farming breast 2201.
Solvent is selected: toluene.
Each component is got the raw materials ready according to percentage by weight by following:
Methothrin: 20%; Phoxim: 20%; DMF 5%; The newborn 1205:5% of farming; The newborn 0206:5% of farming; Surplus is a solvent: toluene.
Preparation process: with the methothrin acetone solution, add phoxim, DMF more successively, farming breast 1205, farming breast 0206 are filled to 100% with toluene then, with said mixture volumetric flask mix 40% methothrin phoxim emulsifiable concentrate.
Embodiment 2
The preparation of 10% methothrin phoxim emulsifiable concentrate: the former medicine of methothrin is 9: 1 with the ratio of Phoxim original medicine in the active drug composition, that is: in the finished product medicament, and methothrin: 9%; Phoxim: 1%, all the other compositions are identical with embodiment 1 with preparation process.
Embodiment 3
The preparation of 40% methothrin phoxim aqueous suspension agent (the former medicine of methothrin is 1: 3 with the ratio of Phoxim original medicine in the active drug composition):
Auxiliary agent is selected: sodium lignin sulfonate; OP-10; CMC; Organic silicone; Ethylene glycol.
Solvent is selected: water.
Each component is got the raw materials ready according to following percentage by weight:
Methothrin: 10%; Phoxim: 30%; Sodium lignin sulfonate: 10.0%; OP-10:5.0%; Thickener CMC:1.0%; Defoamer organic silicone: 0.01%; Antifreeze glycol: 8.0%; Surplus is a water.
Preparation process: methothrin, phoxim, sodium lignin sulfonate, OP-10, thickener CMC, defoamer organic silicone, antifreeze glycol are placed reactor according to the above ratio, water adds to 100% and mixes, and mixture being introduced be milled to the material fineness in the sand mill again is 1～5 μ m; Mix after milling aqueous suspension agent.
Embodiment 4
The preparation of 50% methothrin phoxim aqueous suspension agent: the former medicine of methothrin is 1: 4 with the ratio of Phoxim original medicine in the active drug composition, that is: in the finished product medicament, and methothrin: 10%; Phoxim: 40%, all the other compositions are identical with embodiment 3 with preparation process.
Embodiment 5
Tested agricultural chemicals: 40% methothrin phoxim emulsifiable concentrate (medicine that embodiment 1 makes);
Contrast agricultural chemicals: 20% methothrin missible oil (self-control), 40% phoxim emulsifiable concentrate (self-control);
For trying insect: 2 diamondback moth larvaes in age (Jiangsu Province Agriculture Science Institute indoor feeding);
Assay method: dip method.
Dip method: the test soup is diluted to 5 concentration gradients, with 2 age 20 of diamondback moth larvaes immersed in the soup 15 seconds, take out and dry then, insert then and be placed with in the culture dish of fresh pollution-free dish leaf, every processing repeats for 3 times.Handle in contrast with clear water simultaneously.Check the borer population of living after 24 hours, the calculation correction lethality is calculated the lethal concentration of 50 (LC with concentration logarithm value and dead probability value
50).
40% Methothrin phoxim composite agent toxicity test method: the composite dilution agent of methothrin phoxim is become 5 concentration gradients, with 2 age 20 of diamondback moth larvaes immersed in the soup 15 seconds, taking-up is dried naturally, inserts then to be placed with in the culture dish of fresh pollution-free dish leaf, and every processing repeats for 3 times.Handle in contrast with clear water simultaneously.Check the borer population of living after 24 hours, the calculation correction lethality is calculated the lethal concentration of 50 (LC with concentration logarithm value and dead probability value
50).LC by single agent and composite dose
50Calculate co-toxicity coefficient (CTC) (result is referring to table 1).The calculating of co-toxicity coefficient is with reference to the abundant method of Sun Yun, that is:
The LC of toxicity index (TI)=standard medicament
50The LC of value/reagent agent
50Value * 100;
The LC of actual toxicity index (the ATI)=A medicament of mixture (M)
50The LC of value/M medicament
50Value * 100;
B%+ in the TI * M medicament of A%+B medicament in the TI * M medicament of theoretical toxicity index (the TTI)=A medicament of mixture (M)
The co-toxicity coefficient of mixture (CTC)=ATI/TTI * 100;
CTC＞100 expressions have synergistic effect, and=100 is summation action, and＜100 is antagonism.
Each medicament of table 1 is to the toxicity test of diamond-back moth
| Medicament | Regression equation | 24 hours LC 50??(ug?ml -1) | Co-toxicity coefficient * |
| 20% methothrin missible oil | ??Y＝3.5071+1.2664X | ??15.0968 | ??-- |
| 40% phoxim emulsifiable concentrate | ??Y＝-1.5358+2.6093X | ??319.7213 | ??-- |
| 40% methothrin phoxim emulsifiable concentrate | ??Y＝2.5457+1.8108X | ??22.6678 | ??127.18 |
40% methothrin phoxim is to the field trial of diamond-back moth drug effect: field trial is carried out in the experimental field, Jiangsu Province Agriculture Science Institute.6 processing are established in test altogether, and wherein 1 is contrast (table 2), and every processing repeats for 4 times, and every the repetition is a sub-district, every sub-district area 20m
2, amounting to 24 sub-districts, district's group is arranged at random.With the conventional dispenser of MATABA manual sprayer, use amount of liquid medicine 50Kg for every mu.5 samplings in every sub-district, every some fixed point is looked into 3 strains, totally 15 strains, investigation complete stool diamond-back moth radix.Investigation insect population radix before the medicine was investigated residual worm amount, calculation correction preventive effect in 2 days, 5 days behind the medicine.Adopt the new multipole difference of Deng Kenshi Duncan method that test data is analyzed.(referring to table 2)
The field test results of table 2 40% methothrin phoxim control diamond-back moth
Embodiment 6
Tested agricultural chemicals: 40% methothrin phoxim emulsifiable concentrate (product that embodiment 1 makes);
Contrast agricultural chemicals: 20% methothrin missible oil (self-control), 40% phoxim emulsifiable concentrate (self-control);
For trying insect: 2 cabbage caterpillar larvas in age (collection of experimental field, Jiangsu Province Agriculture Science Institute);
Assay method: dip method.
Dip method: the test soup is diluted to 5 concentration gradients, 20 of 2 cabbage caterpillar larvas in age (collection of experimental field, Jiangsu Province Agriculture Science Institute) were immersed in the soup 15 seconds, take out and dry then, insert then and be placed with in the culture dish of fresh pollution-free dish leaf 3 repetitions of every processing.Handle in contrast with clear water simultaneously.Check the borer population of living after 24 hours, the calculation correction lethality is calculated the lethal concentration of 50 (LC with concentration logarithm value and dead probability value
50).
40% Methothrin phoxim composite agent toxicity test method: the composite dilution agent of methothrin phoxim is become 5 concentration gradients, 20 of 2 cabbage caterpillar larvas in age (collection of experimental field, Jiangsu Province Agriculture Science Institute) were immersed in the soup 15 seconds, taking-up is dried naturally, insert then and be placed with in the culture dish of fresh pollution-free dish leaf 3 repetitions of every processing.Handle in contrast with clear water simultaneously.Check the borer population of living after 24 hours, the calculation correction lethality is calculated the lethal concentration of 50 (LC with concentration logarithm value and dead probability value
50).LC by single agent and composite dose
50Calculate co-toxicity coefficient (CTC) (computational methods are identical with embodiment 3).(result is referring to table 3)
Each medicament of table 3 is to the toxicity test of cabbage caterpillar
| Medicament | Regression equation | 24 hours LC50 (ug ml-1) | Co-toxicity coefficient * |
| 20% methothrin missible oil | ??Y＝6.6384+1.9376X | ?0.2730 | ?-- |
| 40% phoxim emulsifiable concentrate | ??Y＝2.1584+1.9003X | ?31.2867 | ?-- |
| 40% methothrin phoxim emulsifiable concentrate | ??Y＝5.6515+1.8070X | ?0.4360 | ?124.15 |
Embodiment 7
The 40% residual test in methothrin phoxim emulsifiable concentrate field:
Tested agricultural chemicals: 40% methothrin phoxim emulsifiable concentrate (embodiment 1 provides);
Contrast agricultural chemicals: 20% methothrin missible oil (self-control), 40% phoxim emulsifiable concentrate (self-control);
Test method: field trial is carried out in the experimental field, Jiangsu Province Agriculture Science Institute.40% methothrin phoxim emulsifiable concentrate, 20% methothrin missible oil, 40% phoxim emulsifiable concentrate are pressed 10ml/ mu, 2.5ml/ mu, the dispenser of 100ml/ mu respectively, and trial crops is green vegetables.The pesticide residue analysis gas chromatography.Utilize first _ order kinetics equation formula C
1=C
0Er
-1Calculate the half life period.Result of the test sees Table 4.As seen the present invention has reduced the residual of agricultural chemicals relatively.
The half life period of each medicament of table 4 on green vegetables
The foregoing description is not a limitation of the present invention, when specifically implementing, in the finished product medicament, the effective active composition is 2～60%, and auxiliary agent is 5～40%, and solvent is 5～93%, wherein, the effective active composition is made up of methothrin and phoxim, and their weight ratio is: 1: 90～90: 1.They can adopt traditional auxiliary agent, solvent to be mixed with missible oil, aqueous emulsion or aqueous suspension agent.
The present invention is directed to the dry crop insect that methothrin and the agent of phoxim list have the activity killed, the same capable stronger insecticidal activity of tool.
Claims (8)
1. Methothrin phoxim composite pesticide, comprise effective active component, auxiliary agent and solvent, it is characterized in that: the percentage by weight that the effective active composition accounts for the finished product medicament is 2～60%, described effective active composition is made up of methothrin and phoxim, and their weight ratio is: 1: 90～90: 1.
2. Methothrin phoxim composite pesticide according to claim 1 is characterized in that: the percentage by weight of auxiliary agent and solvent is respectively 5～40% and 5～93% in the finished product medicament.
3. Methothrin phoxim composite pesticide according to claim 1 is characterized in that: the percentage by weight that described effective active composition accounts for the finished product medicament is 40%.
4. Methothrin phoxim composite pesticide according to claim 3 is characterized in that: the weight ratio of methothrin and phoxim is 1: 1.
5. Methothrin phoxim composite pesticide according to claim 3 is characterized in that: the weight ratio of methothrin and phoxim is 1: 3.
6. according to each described Methothrin phoxim composite pesticide of claim 1 to 5, it is characterized in that: the formulation of finished product medicament is missible oil, aqueous emulsion or aqueous suspension agent.
7. Methothrin phoxim composite pesticide according to claim 6 is characterized in that: the formulation of described finished product medicament is a missible oil, and wherein, auxiliary agent is DMF, farming breast 0206, farming breast 2201, and solvent is a toluene.
8. Methothrin phoxim composite pesticide according to claim 6 is characterized in that: the formulation of described finished product medicament is an aqueous suspension agent, and wherein, auxiliary agent is sodium lignin sulfonate, OP-10, CMC, organic silicone, ethylene glycol, and solvent is a water.
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| CN201010231547A CN101861874A (en) | 2010-07-21 | 2010-07-21 | Methothrin phoxim composite pesticide |
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| CN201010231547A CN101861874A (en) | 2010-07-21 | 2010-07-21 | Methothrin phoxim composite pesticide |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050811A (en) * | 1989-10-10 | 1991-04-24 | 山东省农药研究所 | Methyldicyanogen chrysanthemum ester organic phosphorus pesticide compounding agent |
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2010
- 2010-07-21 CN CN201010231547A patent/CN101861874A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050811A (en) * | 1989-10-10 | 1991-04-24 | 山东省农药研究所 | Methyldicyanogen chrysanthemum ester organic phosphorus pesticide compounding agent |
Non-Patent Citations (2)
| Title |
|---|
| 张正等: "甲醚菊酯的合成", 《农药》, vol. 27, no. 3, 31 December 1988 (1988-12-31), pages 29 - 30 * |
| 浙江农业大学等: "《农药商品学》", 31 May 1991, 上海科学技术出版社, article "第二篇 主要商品农药介绍", pages: 256-257 * |
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