CN103039511B - Bifenazate and chlorpyrifos contained synergistic acaricidal combination - Google Patents
Bifenazate and chlorpyrifos contained synergistic acaricidal combination Download PDFInfo
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- CN103039511B CN103039511B CN201210569152.4A CN201210569152A CN103039511B CN 103039511 B CN103039511 B CN 103039511B CN 201210569152 A CN201210569152 A CN 201210569152A CN 103039511 B CN103039511 B CN 103039511B
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- bifenazate
- chlopyrifos
- chlorpyrifos
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- mite
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Abstract
The invention relates to a bifenazate and chlorpyrifos contained synergistic acaricidal combination which comprises the effective components, bifenazate and chlorpyrifos, as well as an auxiliary component, wherein the weight percent ratio of the bifenazate to the chlorpyrifos is 10-1:1-120. According to the invention, after the compounding of the bifenazate and the chlorpyrifos, the obvious synergism is achieved, and therefore, the combination has higher activity towards two-spotted spider mites, tetranychus cinabarinus boisdu and other mite type pests.
Description
Technical field
The invention belongs to technical field of pesticide, relate to the binary complex that contains effective active composition Bifenazate and chlorpyrifos mixture, be applied to the control of multiple harmful mite.
Background technology
Bifenazate (bifenazate) chemical name: 3-(4-methoxyl biphenyl base-3-yl) carbazic acid isopropyl ester, molecular formula: C
17h
20n
2o
3it is a kind of new selective foliar spray miticide, Main Function is in an aminobutyric acid (GABA) acceptor of the nervous centralis conducting system of mite class, each vegetative stage to mite is all effective, if having ovicidal activity and knock down fast activity to what become mite, less on the natural enemy impact, can be used for preventing and treating the spider mite kind evil mite on the crops such as vegetables, fruit tree, strawberry, toxicity is very low, environmentally friendly, is applicable to very much the comprehensive regulation to the evil mite.
Chlopyrifos (chlorpyrifos) chemical name: o, o mono-diethyl one o～(3,5,6 one trichlorine one 2 one pyridine radicals) thiophosphate, it is the organophosphorous pesticide of a kind of efficient, wide spectrum, low-residual, have tag, stomach toxicity and fumigation action, can effectively prevent and treat the over one hundred kind of insects such as tortrix moth, mythimna separata, scale insect, aphid, leafhopper and evil mite on vegetables, fruit tree, grain and flowers crop.
The inventor conducts in-depth research the application of Bifenazate, chlopyrifos, find that Bifenazate and chlopyrifos are mixed, there is obvious synergistic function in certain mixed ratio scope, when the multiple harmful mite of control, than using the single dose effect that obvious lifting is arranged, completed after further study the present invention.
Summary of the invention
1, the purpose of this invention is to provide a kind of miticide composition containing Bifenazate and chlopyrifos, after said composition is composite, there is obvious synergistic function.
2, the present invention is different according to the mechanism of action of Bifenazate and chlopyrifos, by its composite dosage that reduces, to overcome or to delay generation and the development of pest resistance to insecticide, improves control efficiency.
3, the present composition is characterised in that: take Bifenazate and chlopyrifos as active ingredient, Bifenazate and chlopyrifos weight ratio are 10 ~ 1:1 ~ 120, Bifenazate and the percentage by weight of chlopyrifos weight summation in composition pesticide are 1 ~ 50%, and all the other are in agricultural chemicals, to allow to use and the acceptable auxiliary element.
4, composition pesticide of the present invention is prepared into and is applicable to the upper suspending agent used of agricultural by known method.
The auxiliary element used in composition pesticide of the present invention comprises that wetting agent, antifreezing agent, thickener, packing agent etc. are of value to active ingredient and stablize and bring into play the known substance of drug effect in preparation, be all various compositions commonly used in pesticidal preparations or that permission is used, concrete composition and consumption require to determine by test according to formula.
compare of the present invention having the following advantages with present technology:
1, the indoor biometrics result shows, composite have an obvious synergistic function, uses separately the control efficiency improved the evil mite than single dose.
2, two kinds of pharmacy effect mechanism differences, can delay the drug-fast generation of evil mite.
3, the synergistic effect of two kinds of active ingredients after composite, can reduce the agricultural chemicals usage amount, reduces the pollution to environment.
Specific embodiments
In order to understand better essence of the present invention, below in conjunction with example, the invention will be further described.
1, formula and preparation processing embodiment
Bifenazate 25%, chlopyrifos 25%, alkylphenol polyoxyethylene 5.5%, silicone compound 0.15%, lauryl sodium sulfate 4%, polyvinyl alcohol 0.3%, propane diols 3%, deionized water adds to 100%, mixes and makes 50% Bifenazate chlopyrifos suspending agent.
2, the indoor biological activity determination of the present composition and field efficacy checking
Implementation of an application example one:
The miticide composition of Bifenazate and chlopyrifos is to Tetranychus urticae Toxicity Determination test on eggplant
Test medicine adopts the former medicine of 97% biphenyl hydrazine and the former medicine of 95% chlopyrifos; The examination worm is that the Tetranychus urticae of adopting back from the field eggplant becomes mite.
Test method is with reference to FAO(FAO (Food and Agriculture Organization of the United Nation)) standard method of the mensuration evil mite of recommending-slide infusion process.Method is the end at slide by double faced adhesive tape, and the picking tetranychid becomes mite gently, and the tetranychid back is bonded on two-sided tape, and each chelicera can be freely movable.Medicament is made on the basis of trial test to 8 ~ 10 concentration, each concentration repeats 4 times, and establishes blank.An end that carries the mite slide that is stained with into mite is immersed to liquid, after jog 5 s, take out, the incubator that to be placed in temperature and to be 25 ℃, relative moisture 75%, illumination L:D be 16:8, check death condition during 48h under the binocular anatomical lens, touch the mite body with writing brush, the motionless person of chelicera is considered as death, and the statistics lethality, calculate preventive effect.
Carry out statistical analysis with the DPS statistical analysis software, calculate the LC of each medicament
50, and calculate the co-toxicity coefficient (CTC) of mixture according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard medicament LC
50/ reagent agent LC
50) * 100
The percentage composition of B in the percentage composition of A+B medicament toxicity index * mixture in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=ATI/TTI * 100
According to the criteria for classifying of co-toxicity coefficient (CTC), CTC<80 are antagonism, and 80<CTC<120 are summation action, CTC > 120 for synergistic effect.
Table 1 Bifenazate and chlopyrifos and built agent thereof the toxicity test to Tetranychus urticae
As can be seen from Table 1, when Bifenazate and chlopyrifos are composite in the scope of 10 ~ 1:1 ~ 120, co-toxicity coefficient all is greater than 120, and Tetranychus urticae is shown to obvious synergistic effect.Especially when Bifenazate and chlopyrifos during at 1 ~ 10:1 ~ 40, synergistic effect is obviously outstanding, and Bifenazate and chlopyrifos all have synergistic effect between 10 ~ 1:1 ~ 120 thus.
Implementation of an application example two:
Application Example 1
50% Bifenazate chlopyrifos suspending agent control eggplant Tetranychus urticae field trial
Test is carried out on the eggplant of Central Military Commission's growing vegetables base, Daxing, Beijing, mark 10 strains of method Shi Mei community, and 1 leaf of every strain mark, investigation insect population radix before dispenser, after medicine, 3d, 7d, 14d investigate respectively residual mite number alive, calculate control efficiency.
Control efficiency (%)=(1-CK
1* PT
1/ CK
2* PT
2) * 100
Tetranychus urticae result of the test on table 2 50% Bifenazate chlopyrifos suspending agent control eggplant
As can be seen from Table 2,3d, 7d after three kinds of working concentration medicines of 50% Bifenazate chlopyrifos suspending agent, 14d to the preventive effect of Tetranychus urticae on eggplant all higher than the preventive effect of the same period 43% 1000 times of 3000 times of Bifenazate suspending agents and 40% chlorpyrifos ecs, illustrate that the preventive effect to Tetranychus urticae all is better than two kinds of single doses after the Bifenazate chlorpyrifos mixture, there is good quick-acting and lasting effect.
Application Example 2
50% Bifenazate chlopyrifos suspending agent control cowpea Tetranychus cinnabarinus field trial
Test is planted on the cowpea of the tested planting base of ring and is carried out in Beijing City Agriculture and Forestry Institute, mark 10 strains of method Shi Mei community, and 1 compound leaf of every strain mark, investigation insect population radix before dispenser, after medicine, 3d, 7d, 14d investigate respectively residual borer population alive, calculate control efficiency.
Table 3 50% Bifenazate chlopyrifos suspending agent control cowpea Tetranychus cinnabarinus result of the test
As can be seen from Table 3,3d, 7d after three kinds of working concentration medicines of 50% Bifenazate chlopyrifos suspending agent, 14d to the preventive effect of Tetranychus cinnabarinus on cowpea all apparently higher than the preventive effect of 1000 times of the chlorpyrifos ecs same period 40%, the preventive effect of 3d, 7d is all higher than 43% Bifenazate suspending agent, illustrate that the preventive effect to Tetranychus cinnabarinus all is better than two kinds of single doses after the Bifenazate chlorpyrifos mixture, there is good quick-acting and lasting effect.
In sum, the present invention adopts Bifenazate chlorpyrifos mixture composition, with existing unitary agent, compares, and obvious synergistic effect is not only arranged, and also has good miticidal effect, can reduce the drug-fast generation of harmful mite, is worth applying aborning.
Claims (1)
1. a miticide composition that contains Bifenazate and chlopyrifos, is characterized in that active ingredient is Bifenazate and chlopyrifos, and the weight ratio of Bifenazate and chlopyrifos is 10 ~ 1:1 ~ 120.
2. a kind of miticide composition that contains Bifenazate and chlopyrifos according to claim 1, is characterized in that Bifenazate and the chlopyrifos gross weight percentage composition in composition is 1 ~ 50%.
3. according to the described a kind of miticide composition that contains Bifenazate and chlopyrifos of claim 1 or 2, it is characterized in that in described miticide composition also containing the auxiliary element that pesticidal preparations is commonly used, in order to make the formulation products that is adapted at using in agricultural production.
4. a kind of miticide composition that contains Bifenazate and chlopyrifos according to claim 3, the formulation that it is characterized in that it is suspending agent.
5. a kind of miticide composition that contains Bifenazate and chlopyrifos according to claim 1, be applicable to prevent and treat Tetranychus cinnabarinus, Tetranychus urticae on crop.
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|---|---|---|---|
| CN201210569152.4A CN103039511B (en) | 2012-12-25 | 2012-12-25 | Bifenazate and chlorpyrifos contained synergistic acaricidal combination |
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|---|---|
| CN103039511A CN103039511A (en) | 2013-04-17 |
| CN103039511B true CN103039511B (en) | 2014-01-08 |
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| JP2552811B2 (en) * | 1991-11-22 | 1996-11-13 | ユニロイヤル ケミカル カンパニー インコーポレイテッド | Phenylhydrazine derivative with insecticidal action |
| CN102165958B (en) * | 2011-03-10 | 2013-08-14 | 陕西汤普森生物科技有限公司 | Pesticide composite containing bifenazate and triazophos |
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