CN101536698B - Pesticidal combination of imidan and beta-cypermethrin - Google Patents
Pesticidal combination of imidan and beta-cypermethrin Download PDFInfo
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- CN101536698B CN101536698B CN 200910061524 CN200910061524A CN101536698B CN 101536698 B CN101536698 B CN 101536698B CN 200910061524 CN200910061524 CN 200910061524 CN 200910061524 A CN200910061524 A CN 200910061524A CN 101536698 B CN101536698 B CN 101536698B
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Abstract
A pesticidal combination of imidan and beta-cypermethrin is composed of a main reagent and an adjuvant, wherein, the main reagent is 15-50% by weight percentage, an emulsifier is 6-10% by weight percentage and a solvent is 42-78% by weight percentage. The main reagent is prepared by compounding the imidan and the beta-cypermethrin at weight ratio of 6-12:1. The pesticidal combination is characterized by high protective efficiency, broad spectrum, high safety and the like and can effectively prevent cabbage worms, budworms and cabbage moths on vegetables, cotton bollworms, budworms and acarids on cottons, as well as orange coccids, soybean budworms and the like. The compound emulsion is in stable state, and has good low-temperature stability and heat storage stability. An animal toxicological test shows that the combination has lower toxicity than the imidan and the beta-cypermethrin, so the combination is safe for human health, animals, current crops and subsequent crops.
Description
Technical field
The present invention relates to a kind of composition pesticide, especially relate to the Pesticidal combination of a kind of phosmet and beta-cypermethrin.
Background technology
Along with the development of agricultural production, chemical pesticide control is efficient by means of it, low cost occupies critical role in the diseases and pests of agronomic crop integrated control, even many peasants are with chemical pesticide the only resource as crop disease control.But often large tracts of land is used with a kind of chemical pesticide, makes insect produce pesticide resistance easily, causes the increase of medication number of times and dosage, thereby has strengthened to the pollution of environment with to the destruction of ecology, and forms the vicious circle of pesticide abuse thus.
Though it has been recognized that, the generation of pest resistance will can be alleviated behind the different combined use of pesticides, but not that any agricultural chemicals can be used with together, this carries out a large amount of innovative researches with regard to needing us to the mechanism of agricultural chemicals, it is composite to find suitable pesticide species and proportioning to carry out, just can make composite back agricultural chemicals have synergistic effect, and can reduce dosage; And after composite, can not produce chemical reaction, in order to avoid decomposition failure; Agricultural chemicals after simultaneously composite should not increase the toxicity to people, animal.
Summary of the invention
The object of the invention provides the Pesticidal combination of a kind of phosmet and beta-cypermethrin, and is limited to solve existing chemical pesticide effect, and long-term use makes insect develop immunity to drugs easily, to the technical problem such as seriously polluted of environment.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: this Pesticidal combination is made of host and assistant agent, wherein host is 15-50% by weight percentage, emulsifier is 6-10%, solvent is 42-78%, described host is by phosmet and efficient cypermethrin compounded forming, and the weight ratio of described phosmet and beta-cypermethrin is 6-12: 1.
As preferably, described solvent is one or more combinations in toluene, dimethylbenzene, methyl alcohol, the dimethyl sulfoxide (DMSO).
As preferably, described emulsifier is one or more combinations in alkylphenol polyoxyethylene, high-carbon fatty alcohol polyoxyethylene ether, calcium dodecyl benzene sulfonate, alkylolamides, dehydration sorb fatty acid ester, the Tween-80.
Phosmet and beta-cypermethrin are two kinds of diverse two pesticide species of the mechanism of action.Wherein phosmet is a broad-spectrum organic insecticide, and pure product are colourless crystallization, has and tags and stomach poison function.The longevity of residure is long, and crop is had certain penetration, can invade the blade face wax coat.Be applicable to various crop insects such as control fruits and vegetables, paddy rice, cotton, and doublely control tetranychid.Beta-cypermethrin then is a kind of pyrethroid insecticides, is the efficient isomer of cypermethrin, has and tags and stomach poison function.Insecticidal spectrum is wide, the speed of knocking down is fast, and insecticidal activity is than the cypermethrin height.Be applicable to insect and sanitary insect pest on the various plants such as control cotton, vegetables, fruit tree, tea tree, forest.
Phosmet is in the same place with efficient cypermethrin compounded: can effectively alleviate the generation of pest resistance, prolong pesticide species service life, and can further improve insecticidal effect, and reduce dosage; Thereby reduce agricultural chemicals field application cost, reduce pollution environment.
The present invention has characteristics such as preventive effect height, wide spectrum, safety, can effectively prevent and treat on the vegetables cabbage caterpillar in the morning, budworm, diamond-back moth; Cotton bollworm on the cotton, aphid, acarid, and oranges and tangerines coccid, soybean pod borer etc.Emulsion property after it is composite is stable, and low-temperature stability and heat storage stability are good, and the animal toxicology test shows that toxicity of the present invention is all lower than phosmet and beta-cypermethrin, therefore to people and animals and when stubble and succession crop safety.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1: configuration 15% phosmet r is (hereinafter to be referred as the high chloro milk oil of imines, wherein phosmet: beta-cypermethrin=7: 1).
By weight percentage phosmet 13.12%, beta-cypermethrin 1.88%, alkylphenol polyoxyethylene 6%, toluene 79% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 2: configuration 15% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=8: 1).By weight percentage phosmet 13.33%, beta-cypermethrin 1.67%, alkylphenol polyoxyethylene 10%, toluene 75% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 3: configuration 15% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=11: 1).By weight percentage phosmet 13.75%, beta-cypermethrin 1.25%, alkylphenol polyoxyethylene 8%, dimethylbenzene 77% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 4: configuration 20% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=7: 1).By weight percentage phosmet 17.5%, beta-cypermethrin 2.5%, high-carbon fatty alcohol polyoxyethylene ether 10%, toluene 70% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 5: configuration 20% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=8: 1).By weight percentage phosmet 17.8%, beta-cypermethrin 2.2%, alkylphenol polyoxyethylene 9%, toluene 71% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines
Embodiment 6: configuration 20% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=9: 1).By weight percentage phosmet 18%, beta-cypermethrin 2%, tween (80) 8%, dimethylbenzene 72% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 7: configuration 20% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=10: 1).By weight percentage phosmet 18.2%, beta-cypermethrin 1.8%, calcium dodecyl benzene sulfonate 7%, dimethylbenzene 73% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 8: configuration 20% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=11: 1).By weight percentage phosmet 18.33%, beta-cypermethrin 1.67%, calcium dodecyl benzene sulfonate 6%, dimethylbenzene 74% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 9: configuration 25% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=7: 1).By weight percentage phosmet 6%, beta-cypermethrin 69%, alkylolamides 21.25%, toluene 63.75% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high permethrin milk oil of imines.
Embodiment 10: the high chloro milk oil of imines of configuration 25%.(phosmet wherein: beta-cypermethrin=9: 1).By weight percentage phosmet 22.5%, beta-cypermethrin 2.5%, alkylolamides 10%, toluene 65% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 11: the high chloro milk oil of imines of configuration 25%.(phosmet wherein: beta-cypermethrin=11: 1).By weight percentage phosmet 22.9%, beta-cypermethrin 2.1%, alkylolamides 8%, methyl alcohol 67% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 12: the configuration 30% the high chloro milk oil of imines.(phosmet wherein: beta-cypermethrin=9: 1).By weight percentage phosmet 27%, beta-cypermethrin 3%, dehydration sorb fatty acid ester 10%, dimethyl sulfoxide (DMSO) 60% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 13: the high chloro milk oil of imines of configuration 30%.(phosmet wherein: beta-cypermethrin=11: 1).By weight percentage phosmet 27.5%, beta-cypermethrin 2.5%, tween (80) 8%, dimethyl sulfoxide (DMSO) 62% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high permethrin milk oil of imines.
Embodiment 14: the high chloro milk oil of imines of configuration 40%.(phosmet wherein: beta-cypermethrin=7: 1).By weight percentage phosmet 35%, beta-cypermethrin 5%, alkylolamides 6%, toluene 54% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 15: the high chloro milk oil of imines of configuration 40%.(phosmet wherein: beta-cypermethrin=9: 1).By weight percentage phosmet 36%, beta-cypermethrin 4%, dehydration sorb fatty acid ester 10%, toluene 50% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 16: configuration 50% the high chloro milk oil of imines (phosmet wherein: beta-cypermethrin=9: 1).By weight percentage phosmet 45%, beta-cypermethrin 5%, dehydration sorb fatty acid ester 6%, toluene 44% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
Embodiment 17: the high chloro milk oil of imines of configuration 50%.(phosmet wherein: beta-cypermethrin=11: 1).By weight percentage phosmet 46.15%, beta-cypermethrin 3.85%, dehydration sorb fatty acid ester 8%, toluene 42% are added in the modulation kettle successively, under 20-30 ℃ of condition, stir half an hour after, promptly obtain the high chloro milk oil of imines.
In order to verify safety of the present invention, entrust Tongji Medical College, Huazhong Science and Technology Univ. agricultural chemicals toxicological study center to carry out animal toxicity test the high chloro milk oil of imines of embodiment 6 configurations 20%.
Result of the test shows: 1, to the acute oral toxicity (LD of rat
50Female mouse is 147mg/kg, and male mouse is 171mg/kg) belong to and poisoning.2, to the acute dermal toxicity (LD of rat
50The male and female rat is all greater than 2000mg/kg) belong to and poisoning.3, to the skin nonirritant of large ear rabbit.4, the eyes to large ear rabbit have the moderate excitant.5, the sensitization of skin to cavy is classified as the I level, belongs to weak sensitizer.
In order to verify effect of the present invention, the high chloro milk oil of imines that embodiment 5,6,8 is prepared has carried out indoor synergism experiment.The soup drop method is adopted in test, is cabbage caterpillar 3 instar larvaes for the examination object, and result of the test sees the following form.
Table 1: Toxicity Determination result.
| Reagent agent | Regression equation (y=a+bx) | Correlation coefficient (R) | LC 50 (mg/L) | LC 5095 put doubly interval | Co-toxicity coefficient (CTC) |
| Phosmet | y＝1.8583+1.3323X | 0.9739 | 228.088 | 146.08-326.21 | |
| Beta-cypermethrin | y＝1.1609+2.1167X | 0.9886 | 65.121 | 42.63-81.74 | |
| Embodiment 5 phosmet beta-cypermethrins=7: 1 | y＝0.5991+2.1092X | 0.9837 | 122.047 | 98.52-151.19 | 135.87 |
| Embodiment 6 phosmets: beta-cypermethrin=9: 1 | y＝2.0379+1.3432X | 0.9904 | 160.450 | 119.40-215.61 | 130.61 |
| Embodiment 8 phosmets: beta-cypermethrin=11: 1 | y＝1.8125+1.3627X | 0.9784 | 218.326 | 156.78-304.02 | 111.01 |
Result of the test shows: phosmet: beta-cypermethrin is at 7-11: all have obvious synergistic effect under 1 proportioning.
In order further to verify effect of the present invention, carry out field control effectiveness test with the present invention.
One. reagent agent: embodiment 4-8 (the high chloro milk oil of 20% imines); Contrast agents: 20% phosmet missible oil; 4.5% r.
Two. test is handled: establish embodiment 4, embodiment 5, embodiment 6, embodiment 7, embodiment 8; 20% phosmet missible oil, 4.5% r be totally 7 processing; Other establishes the clear water blank.
Three. test method: test and Selection is carried out in vegetables base, Bai Long town, Feidong County, Anhui Province; Controlling object is a cabbage caterpillar; Soil is sandy loam, middle fertility, and managerial skills are general; Vegetable variety is a spring bud dish.
The cabbage caterpillar in the preceding field of dispenser is the 2-3 instar larvae, and the degree that causes harm is more even, and the incidence of the insect insect density of every sub-district and disease is roughly the same.During test, 4 repetitions are established in every processing, totally 28 sub-districts, each sub-district area 20m
2Spraying tool uses knapsack sprayer, and every mu of water consumption is 45kg, prepares required soup according to the sub-district area by 50 milliliters/mu concentration and evenly sprays mist.Do not use other agricultural chemicals after the dispenser to investigation, other field pipe normally carries out.
Investigation method: take fixed point investigation, every sub-district 4 strains of fixing a point.Investigation cabbage caterpillar radix before the medicine was investigated residual borer population respectively in 1 day, 3 days, 7 days behind the medicine, calculated preventive effect.
The result of the test of the high chloro milk oil control of table 2:20% imines cabbage caterpillar.
Four. result of the test: embodiment 4-8 has good control efficiency to the cabbage caterpillar on the vegetables under the dosage of effective ingredient consumption 150 gram/hectares, quick-acting is good, and the lasting period is long, and the preventive effect of medication after seven days be all more than 93%, and to the crops high safety.
Claims (3)
1. the Pesticidal combination of phosmet and beta-cypermethrin, it is characterized in that this Pesticidal combination is made of host and assistant agent, wherein host is 15-50% by weight percentage, emulsifier is 6-10%, solvent is 42-78%, described host is by phosmet and efficient cypermethrin compounded forming, and the weight ratio of described phosmet and beta-cypermethrin is 6-12: 1.
2. the Pesticidal combination of a kind of phosmet according to claim 1 and beta-cypermethrin is characterized in that described solvent is one or more combinations in toluene, dimethylbenzene, methyl alcohol, the dimethyl sulfoxide (DMSO).
3. the Pesticidal combination of a kind of phosmet according to claim 1 and beta-cypermethrin, described emulsifier are one or more combinations in alkylphenol polyoxyethylene, high-carbon fatty alcohol polyoxyethylene ether, calcium dodecyl benzene sulfonate, alkylolamides, dehydration sorb fatty acid ester, the Tween-80.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910061524 CN101536698B (en) | 2009-04-09 | 2009-04-09 | Pesticidal combination of imidan and beta-cypermethrin |
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| CN 200910061524 CN101536698B (en) | 2009-04-09 | 2009-04-09 | Pesticidal combination of imidan and beta-cypermethrin |
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| CN101536698A CN101536698A (en) | 2009-09-23 |
| CN101536698B true CN101536698B (en) | 2013-07-31 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002017715A1 (en) * | 2000-08-31 | 2002-03-07 | Bayer Cropscience Ag | Active ingredient combinations comprising insecticidal and acaricidal properties |
| CN1478398A (en) * | 2003-07-05 | 2004-03-03 | 陈华玲 | Agricultural insecticide emulsion |
| WO2005053406A1 (en) * | 2003-12-04 | 2005-06-16 | Bayer Cropscience Aktiengesellschaft | Active substance combinations having insecticidal properties |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2002017715A1 (en) * | 2000-08-31 | 2002-03-07 | Bayer Cropscience Ag | Active ingredient combinations comprising insecticidal and acaricidal properties |
| CN1478398A (en) * | 2003-07-05 | 2004-03-03 | 陈华玲 | Agricultural insecticide emulsion |
| WO2005053406A1 (en) * | 2003-12-04 | 2005-06-16 | Bayer Cropscience Aktiengesellschaft | Active substance combinations having insecticidal properties |
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