CN101828570A - Tetramethrin bifenthrin compound pesticide - Google Patents
Tetramethrin bifenthrin compound pesticide Download PDFInfo
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- CN101828570A CN101828570A CN 201010179575 CN201010179575A CN101828570A CN 101828570 A CN101828570 A CN 101828570A CN 201010179575 CN201010179575 CN 201010179575 CN 201010179575 A CN201010179575 A CN 201010179575A CN 101828570 A CN101828570 A CN 101828570A
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- tetramethrin
- bifenthrin
- biphenthrin
- effective active
- pesticide
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Abstract
The invention relates to a tetramethrin bifenthrin compound pesticide comprising an effective active component, an assistant and a solvent, wherein the effective active component accounts for 1-70 percent by weight of the finished pesticide, the effective active component comprises tetramethrin and bifenthrin, wherein the tetramethrin accounts for 1-99 percent by weight of the effective active component. Compared with the traditional single agent, by compounding the pyrethoid insecticides of tetramethrin and bifenthrin, the tetramethrin bifenthrin compound pesticide has the advantages of obviously improved effect, greatly improved insecticidal activity, widened insecticidal spectrum, slowed pest drug fastness and greatly reduced medicine use cost. Because the tetramethrin and the bifenthrin are both easy to degrade, the tetramethrin bifenthrin compound pesticide is easy to degrade in the environment and reduces pollution and pesticide residue.
Description
Technical field:
The invention belongs to the Recompounded pesticide of control dryland farming insect and sanitary insect pest, the compounded pesticides that to relate to a kind of effective active composition be tetramethrin and Biphenthrin.
Background technology:
Enter 21 century, the production of China's agricultural chemicals and use face many new challenges: the one, along with the adjustment of agricultural structure, to the kind and the new demand of operation technique proposition of agricultural chemicals; The 2nd, along with the raising of living standards of the people and the enhancing of food hygiene consciousness, more and more pay close attention to the security performance of agricultural product.Because the unreasonable use of high-toxic pesticide, residue of pesticide exceed standard and cause the incident of consumer's acute poisoning to happen occasionally; The 3rd, after the entry into the World Trade Organization, the requirement of the competitiveness in the international market that improves agricultural product is improved day by day.At an urgent demand of various circles of society to agricultural product security, the theory of nuisanceless, green, organic farming and agricultural product is rooted in the hearts of the people, and oneself be the public and government's approval, and agenda has been put in the reduction replacement of high poison, long residual agricultural chemicals.Reasonably carrying out combined use of pesticides, is the effective way that the science medication gains mutually, not only can improve control efficiency, also can reduce dosage and reduce the control cost, and the safety that can improve agricultural product.
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 chemical pesticide 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.
Sanitary insect pest common in the family has: mosquito, fly, cockroach, flea, mite class and ant etc.The main medicament of preventing and treating these insects is pyrethroid pesticide, organophosphorous pesticide and composite dose.
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.
Tetramethrin (tetramethrin, CAS:7696-12-0), chemical name: (1,3,4,5,6,7-six hydrogen-1,3-dioxo-2H-iso-indoles-2-yl) methyl-2,2-dimethyl-3-(2-methylpropenyl) cyclopropanecarboxylcompound.Tetramethrin has quick down effect to sanitary insect pests such as mosquito, flies, but the poor performance that causes death has anabiosis, and use therefore will be mixed with the medicament of other good disinsection effect.This medicine has certain effect of driveing to blattaria, perch is run out under the effect of blattaria at tetramethrin at dark place and is subjected to the poisoning of other insecticides and causes death.This medicine is that world health organisation recommendations is used for one of sanitarian main insecticide.
Biphenthrin (bifenthrin, CAS:82657-04-3), chemical name 2-methyl biphenyl-3-ylmethyl-(Z)-(1RS)-suitable-3-(2-chloro-3,3,3-three fluoro-1-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester.Be mainly used in insects such as control cotton, vegetables, fruit tree, tobacco, tea tree, its mode of action is inhaled fumigation action to tag and to put poison in not having, and insecticidal spectrum is wide, easy decomposition failure in alkaline medium and soil.
Agriculture chemical compounding is raising preventive effect and expanding prevention object, slows down pest resistance to insecticide, reduces a kind of effective ways that pollute, reduce residue of pesticide in the agricultural product.At present, the compounded pesticides at tetramethrin and Biphenthrin yet there are no report.
Summary of the invention:
The objective of the invention is to:, usage amount higher at tetramethrin and Biphenthrin list agent use cost pollutes greatly and easily and problems such as the agricultural product residue of pesticide exceed standard, provide a kind of by tetramethrin and the composite compounded pesticides of Biphenthrin, thereby reduce the usage amount of agricultural chemicals, reduce the residual level of agricultural chemicals in agricultural product and environment.
The object of the present invention is achieved like this: a kind of Tetramethrin bifenthrin compound 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 1～70%, described effective active composition is made up of tetramethrin and Biphenthrin, wherein, the percentage by weight of tetramethrin in the effective active composition is 1～99%.
In the compounded pesticides that the present invention relates to: described auxiliary agent, the percentage by weight of solvent in the finished product medicament are: auxiliary agent is 4～50%; Solvent is 8～93%.
In the compounded pesticides that the present invention relates to: the formulation of finished product medicament is a missible oil, or wetting powder, or aerosol, or aqueous emulsion, or aqueous suspension agent.
The invention has the advantages that: with pyrethroid insecticides tetramethrin and Biphenthrin 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 tetramethrin, this two classes medicament of Biphenthrin all have the characteristic of easy degraded, Tetramethrin bifenthrin compound pesticide is more easily degraded in environment, has reduced pollution, has reduced residue of pesticide.
Embodiment:
Reagent agent: former medicine of 95% tetramethrin and the former medicine of 93% Biphenthrin provide by Jiangsu Yangnong Chemical Group Co., Ltd.
Embodiment 1:
Toxicity Determination:
Tested agricultural chemicals: tetramethrin Biphenthrin 1: 1 composite (composite by 1: 1) by former medicine of tetramethrin and the former medicine of Biphenthrin;
Contrast agricultural chemicals: the former medicine of tetramethrin, the former medicine of Biphenthrin;
For trying insect: 2 diamond-back moths in age (Jiangsu Province Agriculture Science Institute indoor feeding) and cabbage caterpillar larva (picking up from experiment field, Jiangsu Province Agriculture Science Institute);
Assay method: dip method.
To be diluted to 5 concentration gradients with organic solvent-acetone for the examination pesticide original medicine, diamond-back moth immersion in 2 ages is respectively tested in the variable concentrations gradient of soup, each in the variable concentrations gradient soup with 20 of larvas, 15 seconds immersion time, 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).
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.
After result of the test shows that tetramethrin and Biphenthrin are mixed, the indoor virulence of diamond-back moth and cabbage caterpillar is obviously improved, show obvious synergistic effect (table 1).
Each medicament of table 1 is to the toxicity test of diamond-back moth
| Medicament | Regression equation | 24 hours LC 50(ugml -1) | Co-toxicity coefficient * |
| Tetramethrin | ??Y＝3.077x+5.635(r＝0.9438) | 0.6216 | ??- |
| Biphenthrin | ??Y＝1.181x+3.772(r＝0.9870) | 10.97 | ??- |
| The tetramethrin Biphenthrin | ??Y＝1.874x+5.102(r＝0.9971) | 0.88 | ??133 |
With the cabbage caterpillar larva substitute 2 age diamond-back moth, adopt identical test and computational methods, can obtain identical synergistic effect (table 2).
Each medicament of table 2 is to the toxicity test of cabbage caterpillar
| Medicament | Regression equation | 24 hours LC 50(ug?ml -1) | Co-toxicity coefficient * |
| Tetramethrin | ??Y＝1.9376x+6.638(r＝0.996) | ??0.273 | ??- |
| Biphenthrin | ??Y＝1.926x+7.843(r＝0.985) | ??0.03 | ??- |
| The tetramethrin Biphenthrin | ??Y＝1.874x+7.339(r＝0.992) | ??0.057 | ??104 |
Embodiment 2:
The preparation of 40% tetramethrin Biphenthrin missible oil (weight ratio of former medicine of tetramethrin and the former medicine of Biphenthrin is 1: 1 in the active drug composition):
Auxiliary agent is selected: DMF, farming breast 0206, farming breast 2201.
Solvent is selected: acetone and toluene.
Each component is got the raw materials ready according to following percentage by weight:
Tetramethrin: 20%; Biphenthrin: 20%; DMF 5%; The newborn 2201:5% of farming; The newborn 0206:5% of farming; Solvent: toluene, surplus (adding to 100%).
Preparation process: with the tetramethrin acetone solution, add Biphenthrin, DMF more successively, farming breast 2201, farming breast 0206 are filled to 100% with toluene then, with said mixture volumetric flask mix 40% tetramethrin Biphenthrin missible oil.
Embodiment 3:
The preparation of 40% tetramethrin Biphenthrin aqueous suspension agent (weight ratio of former medicine of tetramethrin and the former medicine of Biphenthrin is 1: 3 in the active drug composition):
Auxiliary agent is selected: sodium lignin sulfonate, OP-10; CMC; Organic silicone; Ethylene glycol.
Solvent is selected: acetone and water.
Each component is got the raw materials ready according to following percentage by weight:
Tetramethrin: 10%; Biphenthrin: 30%; Sodium lignin sulfonate: 10.0%; OP-10:5.0%; Thickener CMC:1.0%; Defoamer organic silicone: 0.01%; Antifreeze glycol: 8.0%; Water: surplus (adding to 100%).
Preparation process: with tetramethrin, Biphenthrin acetone solution, add sodium lignin sulfonate, OP-10, thickener CMC, defoamer organic silicone, antifreeze glycol more successively and place 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:
To diamond-back moth and cabbage caterpillar field efficacy:
Tested agricultural chemicals: 40% Permethrin-bifenthrin missible oil (embodiment 2 provides);
Contrast agricultural chemicals: 20% permethrin milk oil, 20% Biphenthrin missible oil (adopting auxiliary agent and the solvent identical to make by oneself respectively) with embodiment 2;
Test method
6 processing are established in test altogether, and wherein 1 is contrast, 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 or cabbage caterpillar 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.The result shows that 40% tetramethrin Biphenthrin missible oil and 20% amine chrysanthester emulsifying oil are suitable to the field efficacy of diamond-back moth with 20% Biphenthrin missible oil; 40% tetramethrin Biphenthrin missible oil to the field efficacy of cabbage caterpillar quite or be better than 20% amine chrysanthester emulsifying oil and 20% Biphenthrin missible oil quite (table 3).
The field test results (2009, the Nanjing) of table 3 40% tetramethrin Biphenthrin control diamond-back moth
Substitute diamond-back moth with the cabbage caterpillar larva, adopt identical test, can obtain identical conclusion (table 4).
The field test results (2009, the Nanjing) of table 4 40% tetramethrin Biphenthrin control cabbage caterpillar
Embodiment 5:
The 40% residual test in tetramethrin Biphenthrin aqueous suspension agent field:
Tested agricultural chemicals: 40% tetramethrin Biphenthrin aqueous suspension agent (embodiment 3 provides).
Contrast agricultural chemicals: 20% amine chrysanthester emulsifying oil, 20% Biphenthrin missible oil; (adopting auxiliary agent and the solvent identical to make by oneself respectively) with embodiment 3.
Test method: field trial is carried out in the experimental field, Jiangsu Province Agriculture Science Institute.40% tetramethrin Biphenthrin aqueous suspension agent, 20% amine chrysanthester emulsifying oil, 20% Biphenthrin missible oil are pressed 10ml/ mu, 25ml/ 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
t=C
0Er
-tCalculate the half life period.The present invention has reduced the residual quantity (table 5) of two kinds of agricultural chemicals in vegetables.
The half life period of each medicament of table 5 on green vegetables
*Behind the pharmacy application the 3rd day, Biphenthrin just all degraded (do not detect≤0.001mg kg
-1), do not calculate its half life period.
The foregoing description is not a limitation of the present invention, and when specifically implementing, in the finished product medicament, the effective active composition is 1～70%, and auxiliary agent is 4～50%, and solvent is 8～93%, and wherein, the tetramethrin in the effective active composition is 1～99%, and Biphenthrin is 1～99%.They can adopt traditional auxiliary agent, solvent to be mixed with missible oil, wetting powder, aqueous emulsion, aerosol or aqueous suspension agent.
The present invention is directed to other dry crop insect and sanitary insect pests that tetramethrin and the agent of Biphenthrin list have the activity killed, have stronger insecticidal activity equally.
Claims (3)
1. Tetramethrin bifenthrin compound 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 1～70%, described effective active composition is made up of tetramethrin and Biphenthrin, wherein, the percentage by weight of their tetramethrins in the effective active composition is 1～99%.
2. Tetramethrin bifenthrin compound pesticide according to claim 1 is characterized in that: the percentage by weight of auxiliary agent and solvent is respectively 4～50% and 8～93% in the finished product medicament.
3. Tetramethrin bifenthrin compound pesticide according to claim 1 and 2 is characterized in that: the formulation of finished product medicament is a missible oil, or wetting powder, or aqueous emulsion, or aerosol, or aqueous suspension agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010179575A CN101828570B (en) | 2010-05-21 | 2010-05-21 | Tetramethrin bifenthrin compound pesticide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010179575A CN101828570B (en) | 2010-05-21 | 2010-05-21 | Tetramethrin bifenthrin compound pesticide |
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| CN101828570A true CN101828570A (en) | 2010-09-15 |
| CN101828570B CN101828570B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010179575A Expired - Fee Related CN101828570B (en) | 2010-05-21 | 2010-05-21 | Tetramethrin bifenthrin compound pesticide |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094223A (en) * | 1993-04-27 | 1994-11-02 | 刘润玺 | Compound pyrethrin pesticide |
| WO2007089346A2 (en) * | 2005-12-22 | 2007-08-09 | Fmc Corporation | Composition and method for controlling rice water weevils |
| CN101116444A (en) * | 2007-08-27 | 2008-02-06 | 江苏省农业科学院 | Biphenthrin dichlorvos compound insecticide |
-
2010
- 2010-05-21 CN CN201010179575A patent/CN101828570B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094223A (en) * | 1993-04-27 | 1994-11-02 | 刘润玺 | Compound pyrethrin pesticide |
| WO2007089346A2 (en) * | 2005-12-22 | 2007-08-09 | Fmc Corporation | Composition and method for controlling rice water weevils |
| CN101116444A (en) * | 2007-08-27 | 2008-02-06 | 江苏省农业科学院 | Biphenthrin dichlorvos compound insecticide |
Non-Patent Citations (1)
| Title |
|---|
| 《中华人民共和国农业行业标准 NY/T 1154.7-2006》 20060710 农业部农药检定所 农药室内生物测定实验准则-杀虫剂第7部分：混配的联合作用测定 第1-3页 1-3 , * |
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| CN101828570B (en) | 2012-10-03 |
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