CN104522010A - Synergistic acaricidal composition containing cyenopyrafen and bifenazate - Google Patents
Synergistic acaricidal composition containing cyenopyrafen and bifenazate Download PDFInfo
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- CN104522010A CN104522010A CN201410820299.5A CN201410820299A CN104522010A CN 104522010 A CN104522010 A CN 104522010A CN 201410820299 A CN201410820299 A CN 201410820299A CN 104522010 A CN104522010 A CN 104522010A
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- bifenazate
- nitrile pyrrole
- mite
- mite ester
- pyrrole mite
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Abstract
The invention relates to a synergistic acaricidal composition containing cyenopyrafen and bifenazate. The weight part ratio of the cyenopyrafen to the bifenazate is (20 to 1)-(1 to 20), and the sum of the weight of the cyenopyrafen and the bifenazate accounts for 5-85% of the weight of the acaricidal composition. The two active ingredients are compounded to achieve an obvious synergistic effect, and the synergistic acaricidal composition has excellent effects of controlling various mite pests on fruit trees, vegetables, cotton, tea trees and other crops, flowers and plants; the control effect is improved; and moreover, the use amount of pesticides is reduced, so that the cost is reduced, the environmental pollution is reduced, the resistance management of the mite pests is promoted, and the composition has relatively great economic benefits and social benefits in popularization and application.
Description
Technical field
The present invention relates to composition pesticide and application thereof, specifically a kind of Synergistic mite killing composition that is active ingredient with nitrile pyrrole mite ester and Bifenazate, is mainly used in the control of agriculturally mite pest.
Background technology
Nitrile pyrrole mite ester (cyenopyrafen): belong to novel pyrazoles miticide, the mechanism of action be medicament pass through to be metabolized to OH-form activate produce active, this OH-form reaches the mitochondrial usefulness of suppression by upsetting Complex II on respiratory electron transport chain, thus obstruction electron transmission, destroy oxidative phosphorylation process, be mainly used in preventing and treating the various harmful mite on fruit, vegetables, the tealeaves such as eggplant, capsicum, cucumber, pears, strawberry, citrus, there is good quick-acting and lasting effect.
Bifenazate (bifenazate): be a kind of novel hydrazine ester type compound, the mechanism of action is the antagonist of mite class γ-aminobutyric acid (GABA), all effective to each vegetative stage of mite, if there is ovicidal activity knock down activity fast with to what become mite, less on natural enemy impact, can be used for preventing and treating the spider mite kind insect on the crops such as vegetables, fruit tree, strawberry.
The resistance problems of agricultural mite pest is a global problem, is the emphasis problem that agricultural science and technology worker pays close attention to always.Along with the impact on the continuity year in year out of mite pest chemical control, the increase of Pesticide use amount and the not factor such as scientifical use agricultural chemicals, cause mite pest resistance day by day serious, the mite pest kind producing resistance is on the increase.Meanwhile, due to the use agricultural chemicals of high strength, result in that Practice for Pesticide Residue in Agricultural Products exceeds standard, contaminated environment increases the weight of and the series of problems such as peasant's drug cost increase, be unfavorable for the sustainable development of agricultural.
Therefore, development is efficient, low toxicity, low-residual, the different mechanism of action, there is again the complex preparation of synergistic function simultaneously, not only contribute to delaying the drug-fast generation of mite pest, but also the service life of pesticide species can be extended, reduce using dosage, cost-saving, reduce the pollution to environment.
The compounded formula screening of the present inventor to nitrile pyrrole mite ester and Bifenazate conducts in-depth research, find that nitrile pyrrole mite ester and Bifenazate carry out composite, within the scope of certain compound proportion, there is obvious synergistic function, in actual use simultaneously, outstanding control efficiency is had to various mite pests agriculturally, after further study, the present invention is completed.
Summary of the invention
The object of the present invention is to provide a kind of miticide composition containing nitrile pyrrole mite ester and Bifenazate, this miticide composition has obvious synergistic function, can be used for control agriculturally multiple mite pest.
Another object of the present invention is to the miticide composition containing nitrile pyrrole mite ester and Bifenazate, in use can reduce dosage, reduce the residual quantity of agricultural chemicals on crops, delay the drug-fast generation of mite pest, it can also be made to be used alone to compare than single dose to the control efficiency of various mite pest and to significantly improve, laborsaving, economical, reduce farmer's burdens.
Technical scheme of the present invention: a kind of Synergistic mite killing composition, active ingredient is made up of nitrile pyrrole mite ester and Bifenazate, the ratio of weight and number of nitrile pyrrole mite ester and Bifenazate is 20:1 ~ 1:20, nitrile pyrrole mite ester and the percentage by weight of Bifenazate weight summation in miticide composition are 5%-85%, and all the other are allow in agricultural chemicals to use and acceptable auxiliary element.
Composition pesticide of the present invention can adopt known method to be prepared into applicable any one formulation agriculturally used, and reasonable formulation is suspending agent, aqueous emulsion, microemulsion, water dispersible granules, wetting powder, ultra low volume liquids, microcapsule suspending agent and thermal fog.
The auxiliary agent used in the present composition comprise solvent, dispersant, stabilizing agent, emulsifier, antifreezing agent, thickener etc. and other to be of value to active ingredient stable and play the known substance of drug effect in the formulation, all various compositions that are conventional in pesticidal preparations or permission use, be not particularly limited, concrete composition and consumption are determined by simple test according to recipe requirements.
Product described in the invention can the form of finished product preparation provide, and namely in composition, each material mixes, and the composition of composition also can the form of single dose provide, and directly mixes in tank or bucket, be then diluted to required concentration before using.
Miticide composition of the present invention is applicable to various mite pest on the crops such as control fruit tree, vegetables, cotton, tea tree and flowers.
The frequency of administration of miticide composition of the present invention and amount of application change with weather condition and crop condition change, can by the object using suitable formulation to reach control.
Compared with prior art, the invention has the advantages that:
1, nitrile pyrrole mite ester and Bifenazate is composite has synergistic function, is used alone the control efficiency significantly improved mite pest, expands insecticidal spectrum simultaneously, solve the defect to some mite pest weak effect when single dose is used alone than single dose.
2, nitrile pyrrole mite ester and Bifenazate two kinds of active ingredients composite, the service life decreasing Pesticide use amount, reduce use cost, alleviate pollution to environment, delayed the drug-fast generation of mite pest, added agricultural chemicals.
Embodiment
In order to understand essence of the present invention better; below in conjunction with embodiment, content of the present invention is described further; but can not limitation of the present invention be considered as; the following stated is only for explaining the present invention; for not departing from amendment that the present invention's spirit and principle make, replacement or improvement, all belong to the scope of protection of present invention.
In following each embodiment, active ingredient adopts the 96% former medicine of nitrile pyrrole mite ester and the former medicine of 97% Bifenazate, and each component percentages is weight percentage.
Example of formulations 1:25% nitrile pyrrole mite ester Bifenazate suspending agent.
Nitrile pyrrole mite ester 5%, Bifenazate 20%, lignosulfonates 10%, alkylphenol-polyethenoxy base ether phosphate 10%, CMC 1%, glycerine 2%, silicone oil 0.1%, deionized water supplies 100%.Above-mentioned active ingredient, dispersant, wetting agent, thickener, antifreezing agent, defoamer and deionized water are mixed, sand milling in high speed shear dispersion, sand mill, the high dispersive formed in water-medium, stable suspension system, can obtain 25% nitrile pyrrole mite ester Bifenazate suspending agent.
Example of formulations 2:40% nitrile pyrrole mite ester Bifenazate aqueous emulsion
Nitrile pyrrole mite ester 10%, Bifenazate 30%, cocoa butter heptyl ester 20%, fatty alcohol-polyoxyethylene ether 15%, alkylnaphthalene sulfonate 5%, sodium sorbate 1%, triethylene glycol 1%, deionized water supplies 100%.Above-mentioned active ingredient, solvent, emulsifier, dispersant and stabilizing agent are mixed to form oil phase, antifreezing agent dissolves and forms aqueous phase in water, slowly oil phase is added in aqueous phase under clipper effect, and continue to shear about 30 minutes, the nitrile pyrrole mite ester Bifenazate aqueous emulsion of 40% can be obtained.
Example of formulations 3:35% nitrile pyrrole mite ester Bifenazate microemulsion.
Nitrile pyrrole mite ester 10%, Bifenazate 25%, cyclohexanone 10%, DMF 10%, polyoxyethylene nonylphenol ether 15%, xylitol 1.5%, organosilicon 1.5%, thiophene ketone 2%, deionized water supplies 100%.Active ingredient solvent is dissolved completely, and then add emulsifier, stabilizing agent, bleeding agent, synergist mix, finally add deionized water, after fully stirring, the nitrile pyrrole mite ester Bifenazate microemulsion of 35% can be obtained.
Example of formulations 4:70% nitrile pyrrole mite ester Bifenazate wetting powder.
Nitrile pyrrole mite ester 20%, Bifenazate 50%, polycarboxylate 5%, calcium dodecyl benzene sulfonate 10%, diatomite supplies 100%.By above-mentioned, active ingredient, dispersant, wetting agent and filler are mixed, again through air-flow crushing after mechanical crushing, mix, 70% nitrile pyrrole mite ester Bifenazate wetting powder can be obtained.
Example of formulations 5:60% nitrile pyrrole mite ester Bifenazate water dispersible granules.
Nitrile pyrrole mite ester 15%, Bifenazate 45%, alkylphenol polyoxyethylene 10%, neopelex 10%, sodium sulphate 3%, sodium carboxymethylcellulose 2%, kaolin supplies 100%.Above-mentioned active ingredient, dispersant, wetting agent, disintegrant, binding agent and filler are mixed, pulverize with micro jet, through mediating, then adding in fluidized-bed granulation dryer and carrying out granulation, drying, screening, 60% nitrile pyrrole mite ester Bifenazate water dispersible granules can be obtained.
Example of formulations 6:20% nitrile pyrrole mite ester Bifenazate ultra low volume liquids.
Nitrile pyrrole mite ester 5%, Bifenazate 15%, 1-METHYLPYRROLIDONE 10%, DMF 15%, phenethyl phenol polyethenoxy ether 2%, castor oil polyoxyethylene ether 2%, double to kill 1.5%, cottonseed oil complements to 100%.After above-mentioned active ingredient stirring solvent being dissolved, then add other auxiliary agent, be fully uniformly mixed, 20% nitrile pyrrole mite ester Bifenazate ultra low volume liquids can be obtained.
Example of formulations 7:10% nitrile pyrrole mite ester Bifenazate microcapsule suspending agent.
Nitrile pyrrole mite ester 3%, Bifenazate 7%, sodium alginate 10%, linseed oil 10%, polyoxyethylene laurel ether 10%, sodium hydroxide 2%, polycarboxylate 3%, deionized water complements to 100%.By above-mentioned active ingredient, macromolecule cyst material, solvent, make to be dissolved into homogeneous oil phase, in a shear condition, oil phase is joined in the aqueous phase solution containing emulsifier, pH adjusting agent, dispersant, surplus deionized water is supplied, bi-material reacts at oil-water interfaces, forms macromolecule cyst wall, can obtain 10% nitrile pyrrole mite ester Bifenazate microcapsule suspending agent.
Example of formulations 8:15% nitrile pyrrole mite ester Bifenazate thermal fog.
Nitrile pyrrole mite ester 5%, Bifenazate 10%, cyclohexanone 5%, 1-METHYLPYRROLIDONE 10%, alkylaryl polyoxyethylene polyoxypropylene ether phosphate 8%, lauryl sodium sulfate 3%, Synergistic Phosphorus 2%, triphenyl phosphate 1%, vegetable oil complements to 100%.Above-mentioned active ingredient and solvent are dropped in the reaction vessel of band stirring, after active ingredient is fully dissolved, then add other auxiliary agent, abundant stir about 60 minutes, makes it mix, and can obtain 15% nitrile pyrrole mite ester Bifenazate thermal fog.
Assays Example 1: nitrile pyrrole mite ester and Bifenazate are to the indoor joint toxicity measuring of citrus red mite.
For examination worm: if select field to gather and raise the citrus red mite mite of breeding in indoor.
Reagent agent: the 96% former medicine of nitrile pyrrole mite ester and the former medicine of 97% Bifenazate.
Test method adopts leaf butterfly spray-on process, and concrete operation method is as follows:
Choose the Citrus leaf of healthy growth, make leaf butterfly with card punch, in culture dish, place a wet sponge block, it puts filter paper, foliation butterfly on filter paper, every ware puts 2 pieces of leaf butterflies, if selecting healthy, that the length of time is consistent citrus red mite mite is inoculated on leaf butterfly, every leaf butterfly inoculates 20.
Under the culture dish being connected to leaf butterfly is placed in potter spray tower, spray under 50PSI pressure, spray amount is 1ml, take out culture dish after sedimentation 1min, then the culture dish processed is put into 25 DEG C, cultivate in 12H/12H illumination box, check dead borer population after 48h, calculate lethality.Often 4 repetitions are established in process, and establish the process of clear water blank.
Carry out statistical analysis with DPS statistical analysis software, calculate the LC of each medicament
50, and the co-toxicity coefficient (CTC value) of mixture is calculated according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard agent LC
50/ reagent agent LC
50) × 100.
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B.
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100.
According to the NY/T11547.7-2006 insecticide combination effect criteria for classifying: co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Table 1, nitrile pyrrole mite ester and Bifenazate are to the indoor joint toxicity measuring result of citrus red mite.
| Medicament title and proportioning (weight ratio) | LC 50(mg/L) | ATI | TTI | CTC |
| Nitrile pyrrole mite ester | 3.16 | 100.00 | - | - |
| Bifenazate | 9.74 | 32.44 | - | - |
| Nitrile pyrrole mite ester: Bifenazate (20:1) | 2.43 | 130.04 | 96.78 | 134.37 |
| Nitrile pyrrole mite ester: Bifenazate (10:1) | 2.15 | 146.98 | 93.86 | 156.59 |
| Nitrile pyrrole mite ester: Bifenazate (5:1) | 1.98 | 159.60 | 88.74 | 179.85 |
| Nitrile pyrrole mite ester: Bifenazate (1:1) | 2.51 | 125.90 | 66.22 | 190.12 |
| Nitrile pyrrole mite ester: Bifenazate (1:5) | 4.13 | 76.51 | 43.70 | 175.08 |
| Nitrile pyrrole mite ester: Bifenazate (1:10) | 5.26 | 60.08 | 38.58 | 155.73 |
| Nitrile pyrrole mite ester: Bifenazate (1:20) | 6.81 | 46.40 | 35.66 | 130.12 |
As can be seen from Table 1, when nitrile pyrrole mite ester and Bifenazate are composite in the scope of 20:1 ~ 1:20 (by weight), co-toxicity coefficient (CTC) is all greater than 120, synergistic function is shown to citrus red mite, visible nitrile pyrrole mite ester and Bifenazate is composite has reasonability and feasibility.
Assays Example 2: nitrile pyrrole mite ester and the composite field control effectiveness test to citrus red mite of Bifenazate
Adopt 25% nitrile pyrrole mite ester Bifenazate suspending agent (example of formulations 1) for preventing and treating citrus red mite, investigation insect population radix before dispenser, after medicine, 7d, 14d, 30d investigate residual mite number of living respectively, 2 strains are looked in investigation Shi Mei community, every strain looks into 5 blades respectively by orientation, 4, the four corners of the world, each community looks into 40 blades altogether, records mite number of living, and calculates control efficiency.Control efficiency computational methods are as follows:
Control efficiency (%)=(1-CK
1× Pt
1/ CK
2× Pt
2) × 100.
Wherein: CK
1represent insect population number before the medicine of check plot; Pt
1represent insect population number after treatment region medicine;
CK
2represent insect population number after the medicine of check plot; Pt
2represent insect population number before treatment region medicine;
The result of the test of table 2, each process chemical control citrus red mite.
As can be seen from Table 2, during 25% nitrile pyrrole mite ester Bifenazate suspending agent use active ingredient concentration 150-180mg/kg, after medicine, 7d, 14d, 30d are all better than each single dose to the preventive effect of citrus red mite and are used alone, after medicine, 30d preventive effect all still reaches more than 80% simultaneously, illustrates that this compound drug has good lasting effect.In pilot survey process, do not find that this compound drug produces poisoning to oranges and tangerines.
In sum, the present invention adopts two kinds of active components to be the compound pesticide composition of nitrile pyrrole mite ester and Bifenazate, has synergistic function, compared with existing unitary agent, insecticidal effect significantly improves, and the lasting period is long, to crop safety, be worth applying in agricultural production.
Claims (3)
1. one kind contains the Synergistic mite killing composition of nitrile pyrrole mite ester and Bifenazate, it is characterized in that: active ingredient is made up of nitrile pyrrole mite ester and Bifenazate, the ratio of weight and number of nitrile pyrrole mite ester and Bifenazate is 20:1 ~ 1:20, and nitrile pyrrole mite ester and the percentage by weight of Bifenazate weight summation in miticide composition are 5%-85%.
2. a kind of Synergistic mite killing composition containing nitrile pyrrole mite ester and Bifenazate according to claim 1, it is characterized in that: make any one formulation being applicable to agriculturally using during practical application, reasonable formulation is suspending agent, aqueous emulsion, microemulsion, water dispersible granules, wetting powder, ultra low volume liquids, microcapsule suspending agent or thermal fog.
3. a kind of Synergistic mite killing composition containing nitrile pyrrole mite ester and Bifenazate according to claim 1 and 2 is used for agriculturally preventing and treating the application in various harmful mite.
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| CN111226945A (en) * | 2018-11-29 | 2020-06-05 | 沈阳中化农药化工研发有限公司 | Synergistic insecticidal and acaricidal composition |
| CN111264548A (en) * | 2018-12-04 | 2020-06-12 | 浙江省化工研究院有限公司 | Composition containing bifenazate |
| CN115918664A (en) * | 2022-11-15 | 2023-04-07 | 江西红土地化工有限公司 | Acaricidal composition containing cyenopyrafen and 4-phenoxy-2, 6-diisopropylbenzene thioisocyanate and application thereof |
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| CN115918664A (en) * | 2022-11-15 | 2023-04-07 | 江西红土地化工有限公司 | Acaricidal composition containing cyenopyrafen and 4-phenoxy-2, 6-diisopropylbenzene thioisocyanate and application thereof |
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