CN105165886A - Insecticidal composition and application thereof - Google Patents
Insecticidal composition and application thereof Download PDFInfo
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- CN105165886A CN105165886A CN201510604409.9A CN201510604409A CN105165886A CN 105165886 A CN105165886 A CN 105165886A CN 201510604409 A CN201510604409 A CN 201510604409A CN 105165886 A CN105165886 A CN 105165886A
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- betacyfluthrin
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Abstract
The invention discloses an insecticidal composition and an application thereof, and relates to the technical field of combination of pesticide. The insecticidal composition comprises an effective component A and an effective component B, the effective component A adopts chlorpyrifos, and the effective component B adopts beta-cyfluthrin, wherein the weight ratio of the effective component A of the chlorpyrifos to the effective component B of the beta-cyfluthrin is 1:80 to 80:1. According to the combination agent, dosing is reasonable, a significant synergistic effect is achieved, the effects especially on lepidoptera such as green fruit worms, tortricid and conopomorpha sinensis bradley and soil insects such as black cutworms, grubs, wireworms and fly maggots are excellent, the application amount of each single dosage can be effectively reduced, the purposes of delaying pesticide resistance and reducing the cost are achieved, and significant application and promotion value is achieved.
Description
Technical field
The present invention relates to a kind of Pesticidal combination and application thereof, refer to a kind of Pesticidal combination and the application thereof that contain active ingredient chlopyrifos and betacyfluthrin especially, belong to technical field of pesticide combination.
Background technology
In the real process of agricultural production, chemical control remains the most effective means of pest control, but continuing and a large amount of uses due to chemical insecticide, pest resistance to insecticide problem is constantly given prominence to.And the insect easily developed immunity to drugs normally large, the obvious insect of generation overlap of breeding amount.And the composition of different cultivars carries out composite, it is one of effective means of the resistant insect comprehensive regulation.
Chlopyrifos (Chlorpyrifos) is called: chlorine pyrazothion, Chlorpyrifos, Le Siben, chlorine pyrrole phosphorus, the chemical name of an article: chemical name: O, O-diethyl-O-(3,5,6-trichloro-2-pyridyl) thiophosphate.Chlopyrifos is acetylcholinesteraseinhibitors inhibitors, belongs to thiophosphate insecticides.Chlopyrifos destroys normal nerve impulse conduction by suppressing the activity of the acetylcholinesterase in body in nerve or cholinesterase ChE, causes a series of poisoning symptom: exaltation, spasm, paralysis, death.The organic matter be easy in soil combines, and to soil insect special efficacy, the lasting period is long, has stomach toxicity, tags, fumigates triple role, effective to Lepidoptera, diptera and multiple coleopteran pest, but not high to sucking pest preventive effect.
Betacyfluthrin (beta-cyfluthrin) is called: protect.Betacyfluthrin is a kind of pyrethroid insecticides of synthesis, has and tags and stomach poison function, and insecticidal spectrum is wide, and knock down rapidly, the lasting period is long, and plant has good drug resistance to it.This medicine is that insecticidal activity is high to public health insect very effective a kind of broad spectrum pesticide, belongs to never poison, to tag and stomach poison function, and has certain avoidance effect, without interior suction and fumigation action.There is the advantages such as the speed of knocking down is fast, power of knocking down is strong, dosage is few.Quick-acting, the lasting period is grown, the drip washing of ability rainwater.Pathophorous vector pests and the various sanitary insect pest of control can be eliminated.For preventing and treating Lepidoptera, diptera, the inferior insect of Homoptera and ground.
The insect of resistance is agriculturally produced for control, a kind of way be release new for the new component of existing kind without cross resistance.But the development cost of new active ingredient is high, and the construction cycle is long, usual cost billions of dollars, last more than 5 years, and once there is resistance, usually cause chemical control to lose efficacy, be forced to stop using or eliminate.And exploitation medicament all produces the speed of resistance usually less than insect.Other method, as crop structure adjustment, different agricultural chemicals rotations etc., in the process of practical operation, is difficult to really play obvious effect.
The composition of different cultivars carries out composite, is to prevent and treat the common way of resistant insect.Heterogeneity is carried out composite, according to the effect of practical application, judge certain composite be synergy, addition and or antagonism.Compound synergic is well filled a prescription, and owing to significantly improving actual control efficiency, reduces the usage amount of agricultural chemicals, thus has delayed the generation of pest resistance to insecticide greatly, is the important means of integrated control insect.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of composition is reasonable, Complex synergism good, insecticidal effect is good, and drug cost is low, the Pesticidal combination not easily developed immunity to drugs and application thereof.
For solving the problems of the technologies described above, the invention provides technical scheme as follows:
Pesticidal combination of the present invention, comprises effective constituents A and B, and effective constituents A is chlopyrifos, and active ingredient B is gamma cyhalothrin, and its weight ratio is 1:80 ~ 80:1; Further weight ratio is 1:8 ~ 40:1; Further, weight ratio is 10:1 ~ 30:1.
Also containing pesticidal preparations auxiliary element in Pesticidal combination of the present invention, to make the formulation being applicable to agriculturally using.Described pesticidal preparations auxiliary element is one or more in solvent, emulsifier, dispersant, stabilizing agent, antifreezing agent or wetting agent.
Pesticidal combination of the present invention, according to the known method of those skilled in the art of the present technique, can be mixed with arbitrary formulation of applicable agricultural use, good formulation for can be wetting powder, aqueous emulsion, microemulsion, suspending agent, water-dispersible granules etc.
Pesticidal combination of the present invention, can be applicable to the preparation of the pesticidal preparations preventing and treating insect pest of the plant.Particularly be applied to control lepidoptera pest or and the preparation of pesticidal preparations of soil insect.Especially the preparation of pesticidal preparations of control heart-eating worm, leaf roller, base of a fruit moth and black cutworm, grub, wireworm, fly maggot is applied to.
Pesticidal combination of the present invention can finished product preparation form provide, and namely in composition, each material mixes, or the composition of composition also can provide with unit dose form, directly directly mixes in bucket or tank, be then diluted to required concentration before using.
Pesticidal combination of the present invention is applied to the method for prevention and elimination of disease and pests, effective constituents A chlopyrifos and active ingredient B gamma cyhalothrin are used with above-mentioned weight ratio 1:80 ~ 80:1, and it is used after can mixing in proportion, use in proportion simultaneously or use successively in proportion.Effective constituents A chlopyrifos and active ingredient B gamma cyhalothrin are used with weight ratio 1:8 ~ 40:1, and it is used after can mixing in proportion, use in proportion simultaneously or use successively in proportion.Effective constituents A chlopyrifos and active ingredient B gamma cyhalothrin are used with weight ratio 10:1 ~ 30:1, and it is used after can mixing in proportion, use in proportion simultaneously or use successively in proportion.Concrete method of application can be powder injection process, spray-on process, smog method, fumigating system and seed treatment and soil treatment, ultra low volume spraying, mixes fertilizer, spreads fertilizer over the fields, fills with root.Control nematode is preferred ditch spread, fill with root, the soil treatment such as to spread manuer in holes or leaching root, seed soaking.
Compared with prior art, beneficial effect of the present invention is: 1, compared with single dose, and composite have obvious synergistic function, improves control efficiency; 2, composition is made up of the active ingredient that two kinds of mechanism of action are different, and good disinsection effect, is conducive to overcoming and delay drug-fast generation; 3, medicament mixture decreases dosage, thus reduces cost and alleviate pollution to environment, and 4, compound synergic, drug cost is low.
The present invention to Lepidoptera as heart-eating worm, leaf roller, base of a fruit moth etc. and soil insect such as black cutworm, grub, wireworm, fly maggot etc. have excellent control efficiency.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, will be described in detail with specific embodiment below, but the present invention is limited to absolutely not these examples.The following stated is only the good embodiment of the present invention, only in order to explain the present invention, therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
The combination of active principles of different agricultural chemicals is made agricultural chemicals, is current development novel pesticide and the one of preventing and treating agriculturally resistant insect effectively and efficiently mode.After the pestsides synthesis of different cultivars, usually show a large amount of three kinds of type of action: summation action, synergistic effect and antagonism.Compound synergic is well filled a prescription, and can significantly improve actual control efficiency, and reducing the usage amount of agricultural chemicals, thus contribute to delaying drug-fast generation speed, is the important means of integrated control damage by disease and insect.
The present composition take chlopyrifos as effective constituents A, betacyfluthrin is active ingredient B, combine between them and have obvious synergistic function to pest control, and be not only the simple superposition of two kinds of pharmacy effects, this clearly can recognize from following test result.
In order to prevent and treat black cutworm in agricultural production and fragrant-flowered garlic maggot, inventor has carried out mutual composite synergy with chlopyrifos and betacyfluthrin two kinds of compositions and has studied.Laboratory test adopts black cutworm to be tested object, and concrete grammar is:
The composite joint toxicity measuring test of indoor biometrics:
Reagent agent: the former medicine of 95% chlopyrifos, the former medicine of 95%% betacyfluthrin
For examination worm source:
Black cutworm: in March, 2012 picks up from kangding, take back indoor employing insect feedstuff (plant protection institute of Nanjing agricultural university formula) and raise, raising temperature is 25 ± 1 DEG C, relative moisture 60%-75%, and the photoperiod is 14:10h (L:D).
Bradysia fungus gnat nymph: pick up from examination worm in October, 2012 and gather Overwintering Larvae from Taian Shandong suburb leek, raise with leek stem in indoor culture dish, raising temperature is 25 ± 1 DEG C, relative moisture 60%-75%, and the photoperiod is 16:8h (L:D).
Test method:
Black cutworm assay method: black cutworm Toxicity Determination adopts Ministry of Agriculture NYT1154.10-2008 farm-chemical indoor determination test rule to carry out.According to trial test result, according to proportional diluted method, with containing the 1 ‰ TritonX-100 aqueous solution, medicament is mixed with 5-6 series concentration, the liquid diluted in right amount is evenly mixed into (content of organic solvent in feed is no more than 1%) in the artificial feed made, pours 12 orifice plates while hot respectively into and cool for subsequent use.1 examination worm is accessed in every hole, often processes repetition 3 times, often repeats 12, and establishes the process not containing medicament (containing organic solvent) not make blank; Examination worm after handling well is placed in temperature for (25 ± 1) DEG C, and relative moisture 60% ~ 70%, light dark period is raised than in the climatic cabinate of L:D=16h:8h.After 72h, add up dead larvae quantity, touch examination worm polypide with writing brush point, can not the coordinated movement of various economic factors be then considered as death.
Bradysia fungus gnat nymph assay method: carry out according to the optimization of Ministry of Agriculture NYT1154.14-2008 farm-chemical indoor determination method, filter paper is moistening, be layered in 9cm culture dish, leek (white portion) be cut into 2cm segment, in variable concentrations liquid, soak 15s.Taking out 5 sections is placed in culture dish, then moves into third-instar larvae of the same size lightly with writing brush.Often process 50, repeat 3 times, establish clear water to contrast simultaneously.Check once every 24h, record dead borer population, supplement clear water with manual sprayer simultaneously, keep filter paper moistening, supplement the leek stem of dipped respective concentration liquid every day in time, finally calculate lethality.
Data processing:
POLOPlus software is adopted to calculate toxicity regression formula.Calculating parameter comprises: slope b value and standard error, card square, degree of freedom, LC
50value and 95% confidence limit.
Co-toxicity evaluation method:
The lab screening of composite formula adopts the abundant co-toxicity coefficient method of Sun Yun:
Toxicity index (TI)=(LC of standard agent
50the LC of/reagent agent
50) × 100
The LC that the actual toxicity index of mixture (ATI)=medicament A is alone
50the LC that/medicament A with B is mixed
50) × 100
Theoretical toxicity index (TTI)=TI (A) × a+TI (the B) × b of mixture
A: represent the percentage composition of medicament A in mixture;
B: represent the percentage composition of medicament B in mixture.
Co-toxicity coefficient CTC=(the theoretical toxicity index TTI of the actual toxicity index ATI/ mixture of mixture) × 100
According to the regulation of the Institute for the Control of Agrochemicals of the Ministry of Agriculture,PRC, the criterion of mixture formula synergy is: co-toxicity coefficient is greater than 120 for synergistic effect; Co-toxicity coefficient 80-120 is summation action; Co-toxicity coefficient is less than 80, is antagonism.
The selection of optimum proportioning is with the co-toxicity coefficient of mixture and LC
50(or LD
50) value two indices weighs, i.e. higher the and LC of co-toxicity coefficient
50(or LD
50) value minimum (namely surveying toxicity index maximum).
Table 1 chlopyrifos and the composite toxicity test result to black cutworm of betacyfluthrin
| Chemicals treatment | Proportioning | Slope S lope (SE) | LC 50(95％FL)mg/L | Co-toxicity coefficient (CTC) |
| Chlopyrifos (A) | —— | 2.312(0.221) | 6.34(4.32-8.43) | ---- |
| Betacyfluthrin (B) | —— | 1.856(0.242) | 0.63(0.51-0.83) | ---- |
| A:B | 1:80 | 2.023(0.243) | 4.71(3.21-6.11) | 121.06 |
| A:B | 1:40 | 1.976(0.265) | 4.02(3.67-5.98) | 129.16 |
| A:B | 1:35 | 2.137(0.305) | 3.56(2.93-4.87) | 142.27 |
| A:B | 1:25 | 1.718(0.312) | 3.21(2.56-4.54) | 146.45 |
| A:B | 1:10 | 2.132(0.337) | 2.22(1.85-3.21) | 156.58 |
| A:B | 1:8 | 2.784(0.374) | 1.68(0.94-2.45) | 188.03 |
| A:B | 1:1 | 1.824(0.217) | 0.59(0.32-0.67) | 194.26 |
| A:B | 10:1 | 2.373(0.222) | 0.26(0.17-0.42) | 263.66 |
| A:B | 15:1 | 1.541(0.273) | 0.27(0.15-0.43) | 247.25 |
| A:B | 20:1 | 1.634(0.267) | 0.29(0.14-0.41) | 226.98 |
| A:B | 25:1 | 1.999(0.313) | 0.31(0.15-0.48) | 210.52 |
| A:B | 30:1 | 2.921(0.214) | 0.32(0.21-0.51) | 202.77 |
| A:B | 40:1 | 1.569(0.325) | 0.35(0.22-0.59) | 184.04 |
| A:B | 55:1 | 2.043(0.286) | 0.46(0.32-0.69) | 139.20 |
| A:B | 80:1 | 2.034(0.307) | 0.53(0.33-0.84) | 120.20 |
Table 2 chlopyrifos and the composite toxicity test result to Bradysia fungus gnat nymph of betacyfluthrin
| Chemicals treatment | Proportioning | Slope S lope (SE) | LC 50(95％FL)mg/L | Co-toxicity coefficient (CTC) |
| Chlopyrifos (A) | —— | 2.113(0.231) | 16.43(12.47-20.22) | ---- |
| Betacyfluthrin (B) | —— | 1.836(0.342) | 2.66(1.21-3.98) | ---- |
| A:B | 1:80 | 2.033(0.276) | 12.71(9.43-14.87) | 121.50 |
| A:B | 1:40 | 2.106(0.354) | 11.02(9.66-13.76) | 132.38 |
| A:B | 1:35 | 2.032(0.276) | 10.56(8.97-12.01) | 136.03 |
| A:B | 1:25 | 1.615(0.376) | 9.21(8.21-11.85) | 148.77 |
| A:B | 1:10 | 1.832(0.338) | 7.22(6.98-9.21) | 154.74 |
| A:B | 1:8 | 2.381(0.274) | 5.68(4.01-6.89) | 183.64 |
| A:B | 1:1 | 2.214(0.269) | 2.39(1.76-3.21) | 191.58 |
| A:B | 10:1 | 2.125(0.231) | 1.25(0.96-1.47) | 229.98 |
| A:B | 15:1 | 1.637(0.341) | 1.27(0.75-1.59) | 221.03 |
| A:B | 20:1 | 1.782(0.278) | 1.29(0.89-1.62) | 214.77 |
| A:B | 25:1 | 1.980(0.313) | 1.31(0.91-1.77) | 209.82 |
| A:B | 30:1 | 1.631(0376) | 1.32(0.87-1.95) | 207.11 |
| A:B | 40:1 | 1.834(0.301) | 1.45(1.04-2.21) | 187.28 |
| A:B | 55:1 | 2.323(0.243) | 2.11(1.24-2.44) | 127.98 |
| A:B | 80:1 | 2.451(0.215) | 2.22(1.55-2.62) | 121.07 |
Toxicity Determination result shows, within the scope of weight ratio 1:80-80:1, chlopyrifos and betacyfluthrin composite, its co-toxicity coefficient is all greater than 120, all show synergistic effect, wherein when chlopyrifos and betacyfluthrin weight ratio are 1:80-1:40 scope, its co-toxicity coefficient is all greater than 120, particularly during 10:1-30:1 scope, show as more obvious synergistic effect; Can reach and effectively prevent and treat black cutworm, reduce the object of single dose consumption, there is extremely strong Development volue.
Pesticidal combination of the present invention can be prepared into any one formulation of applicable agricultural use by known method, reasonable formulation is missible oil, wetting powder, aqueous emulsion, microemulsion, suspending agent, water dispersible granules.In all formulas, percentage is all weight percentage.The processing technology of the various formulation of the present composition is prior art, can change to some extent according to different situations.
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, within the scope of weight ratio 1:80-80:1, building chlopyrifos and the composite embodiment of betacyfluthrin, be described in detail, but the present invention being limited to absolutely not these examples.
In addition, inventor also found through experiments, chlorpyrifos-methyl and betacyfluthrin is composite also certain synergistic effect.But chlopyrifos and the composite effect of betacyfluthrin is better than chlorpyrifos-methyl and betacyfluthrin is composite.Therefore, in order to this problem is described, in the proportion identical with embodiment, chlorpyrifos-methyl and the composite comparative example of betacyfluthrin is constructed.Be described in detail.It should be pointed out that chlopyrifos and the composite effect of betacyfluthrin are better than chlorpyrifos-methyl and the composite composite effect of betacyfluthrin, be not only confined in limited comparative example.
Below in conjunction with embodiment and comparative example, content of the present invention is described further.
Embodiment 1:16.2% chlopyrifos betacyfluthrin suspending agent (1:80)
Chlopyrifos 0.2%, betacyfluthrin 16%, alkylphenol-polyethenoxy base phosphate 4%, polyoxyethylene polyoxypropylene base ether block copolymers 3%, ethylene glycol 5%, xanthans 0.15%, silicone defoaming agent 0.1%, Kathon CG 0.5%, water complements to 100%.
Preparation method: each component is mixed, mixes through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 16.2% chlopyrifos betacyfluthrin suspending agent can be obtained.
Comparative example 1:16.2% chlorpyrifos-methyl betacyfluthrin suspending agent (1:80)
Chlorpyrifos-methyl 0.2%, betacyfluthrin 16%, alkylphenol-polyethenoxy base phosphate 4%, polyoxyethylene polyoxypropylene base ether block copolymers 3%, ethylene glycol 5%, xanthans 0.15%, silicone defoaming agent 0.1%, Kathon CG 0.5%, water complements to 100%.
Preparation method: each component is mixed, mixes through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 16.2% chlorpyrifos-methyl betacyfluthrin suspending agent can be obtained.
Embodiment 2:41% chlopyrifos betacyfluthrin water dispersible granules (1:40)
Chlopyrifos 1%, betacyfluthrin 40%, lauryl sodium sulfate 1%, sodium lignin sulfonate 6%, starch 5%, kaolin supply 100%.
Preparation method: former medicine, auxiliary agent, filler are mixed laggard row air-flow crushing, through wet granulation, dries obtained 41% chlopyrifos betacyfluthrin water dispersible granules.
Comparative example 2:41% chlorpyrifos-methyl betacyfluthrin water dispersible granules (1:40)
Chlorpyrifos-methyl 1%, betacyfluthrin 40%, lauryl sodium sulfate 1%, sodium lignin sulfonate 6%, starch 5%, kaolin supply 100%.
Preparation method: former medicine, auxiliary agent, filler are mixed laggard row air-flow crushing, through wet granulation, dries obtained 41% chlorpyrifos-methyl betacyfluthrin water dispersible granules.
Embodiment 3:22% chlopyrifos betacyfluthrin microemulsion (1:10)
Chlopyrifos 2%, betacyfluthrin 20%, calcium dodecyl benzene sulfonate 4%, styrylphenol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 3%, cyclohexanone 15%, trimethylbenzene 10%, water supplies 100%.
Preparation method: be dissolved in solvent by former medicine, adds emulsifier and mixes, then adds water stirring until form clear liquid, obtains 22% chlopyrifos betacyfluthrin microemulsion.
Comparative example 3:22% chlorpyrifos-methyl betacyfluthrin microemulsion (1:10)
Chlorpyrifos-methyl 2%, betacyfluthrin 20%, calcium dodecyl benzene sulfonate 4%, styrylphenol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 3%, cyclohexanone 15%, trimethylbenzene 10%, water supplies 100%.
Preparation method: be dissolved in solvent by former medicine, adds emulsifier and mixes, then adds water stirring until form clear liquid, obtains 22% chlorpyrifos-methyl betacyfluthrin microemulsion.
Embodiment 4:13% chlopyrifos betacyfluthrin suspending agent (1:5.5)
Chlopyrifos 2%, betacyfluthrin 11%, sodium lignin sulfonate 4%, oxygen ethene polyoxypropylene base ether block copolymers 1%, ethylene glycol 4%, xanthans 0.15%, silicone defoaming agent 0.1%, Kathon CG 0.5%, water complement to 100%.
Preparation method: each component is mixed, mixes through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 13% chlopyrifos betacyfluthrin suspending agent can be obtained.
Embodiment 5:20% chlopyrifos betacyfluthrin missible oil (1:1)
Chlopyrifos 10%, betacyfluthrin 10%, calcium dodecyl benzene sulfonate 4%, styrylphenol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 3%, carbon 9 10%, defoamer 0.1%, water supplies 100%.
Preparation method: be dissolved in solvent by former medicine, adds emulsifier and mixes, then adds water stirring until form clear liquid, obtains 20% chlopyrifos betacyfluthrin missible oil.
Comparative example 4:20% chlorpyrifos-methyl betacyfluthrin missible oil (1:1)
Chlorpyrifos-methyl 10%, betacyfluthrin 10%, calcium dodecyl benzene sulfonate 4%, styrylphenol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 3%, carbon 9 10%, defoamer 0.1%, water supplies 100%.
Preparation method: be dissolved in solvent by former medicine, adds emulsifier and mixes, then adds water stirring until form clear liquid, obtains 20% chlorpyrifos-methyl betacyfluthrin missible oil.
Embodiment 6:21% chlopyrifos betacyfluthrin water dispersible granules (9.5:1)
Chlopyrifos 19%, betacyfluthrin 2%, lauryl sodium sulfate 1%, sodium lignin sulfonate 6%, starch 5%, kaolin supply 100%.
Preparation method: former medicine, auxiliary agent, filler are mixed laggard row air-flow crushing, through wet granulation, dries obtained 21% chlopyrifos betacyfluthrin water dispersible granules.
Embodiment 7:16% chlopyrifos betacyfluthrin suspending agent (15:1)
Chlopyrifos 15%, betacyfluthrin 1%, sodium lignin sulfonate 4%, oxygen ethene polyoxypropylene base ether block copolymers 1%, ethylene glycol 4%, xanthans 0.15%, silicone defoaming agent 0.1%, Kathon CG 0.5%, water complement to 100%.
Preparation method: each component is mixed, mixes through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 16% chlopyrifos betacyfluthrin suspending agent can be obtained.
Comparative example 5:16% chlorpyrifos-methyl betacyfluthrin suspending agent (15:1)
Chlorpyrifos-methyl 15%, betacyfluthrin 1%, sodium lignin sulfonate 4%, oxygen ethene polyoxypropylene base ether block copolymers 1%, ethylene glycol 4%, xanthans 0.15%, silicone defoaming agent 0.1%, Kathon CG 0.5%, water complement to 100%.
Preparation method: each component is mixed, mixes through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 16% chlorpyrifos-methyl betacyfluthrin suspending agent can be obtained.
Embodiment 8:21% chlopyrifos betacyfluthrin water dispersible granules (20:1)
Chlopyrifos 20%, betacyfluthrin 1%, lauryl sodium sulfate 1%, sodium lignin sulfonate 6%, starch 5%, kaolin supply 100%.
Preparation method: former medicine, auxiliary agent, filler are mixed laggard row air-flow crushing, through wet granulation, dries obtained 21% chlopyrifos betacyfluthrin water dispersible granules.
Comparative example 6:21% chlorpyrifos-methyl betacyfluthrin water dispersible granules (20:1)
Chlorpyrifos-methyl 20%, betacyfluthrin 1%, lauryl sodium sulfate 1%, sodium lignin sulfonate 6%, starch 5%, kaolin supply 100%.
Preparation method: former medicine, auxiliary agent, filler are mixed laggard row air-flow crushing, through wet granulation, dries obtained 21% chlorpyrifos-methyl betacyfluthrin water dispersible granules.
Embodiment 9:12.4% chlopyrifos betacyfluthrin suspending agent (30:1)
Chlopyrifos 12%, betacyfluthrin 0.4%, chlopyrifos 15%, betacyfluthrin 1%, sodium lignin sulfonate 4%, oxygen ethene polyoxypropylene base ether block copolymers 1%, ethylene glycol 4%, xanthans 0.15%, silicone defoaming agent 0.1%, Kathon CG 0.5%, water complement to 100%.
Preparation method: each component is mixed, mixes through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 12.4% chlopyrifos betacyfluthrin suspending agent can be obtained.
Comparative example 7:12.4% chlorpyrifos-methyl betacyfluthrin suspending agent (30:1)
Chlorpyrifos-methyl 12%, betacyfluthrin 0.4%, chlopyrifos 15%, betacyfluthrin 1%, sodium lignin sulfonate 4%, oxygen ethene polyoxypropylene base ether block copolymers 1%, ethylene glycol 4%, xanthans 0.15%, silicone defoaming agent 0.1%, Kathon CG 0.5%, water complement to 100%.
Preparation method: each component is mixed, mixes through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 12.4% chlorpyrifos-methyl betacyfluthrin suspending agent can be obtained.
Embodiment 10:20.5% chlopyrifos betacyfluthrin wetting powder (40:1)
Chlopyrifos 20%, betacyfluthrin 0.5%, lauryl sodium sulfate 1%, sodium lignin sulfonate 6%, kaolin supply 100%.
Preparation method: after former medicine, auxiliary agent, filler being mixed, through air-flow crushing, obtains 20.5% chlopyrifos betacyfluthrin wetting powder.
Comparative example 8:20.5% chlorpyrifos-methyl betacyfluthrin wetting powder (40:1)
Chlorpyrifos-methyl 20%, betacyfluthrin 0.5%, lauryl sodium sulfate 1%, sodium lignin sulfonate 6%, kaolin supply 100%.
Preparation method: after former medicine, auxiliary agent, filler being mixed, through air-flow crushing, obtains 20.5% chlorpyrifos-methyl betacyfluthrin wetting powder.
Embodiment 11:37.5% chlopyrifos betacyfluthrin aqueous emulsion (75:1)
Chlopyrifos 37%, betacyfluthrin 0.5%, cyclohexanone 4.0%, dimethylbenzene 8.0%, emulsifier 8.0%, urea 5.0%, defoamer 0.1%, water complement to 100%.
Preparation method: be dissolved in solvent by former medicine, adds emulsifier and mixes, then adds water stirring until form clear liquid, obtains 37.5% chlopyrifos betacyfluthrin aqueous emulsion.
Comparative example 9:37.5% chlorpyrifos-methyl betacyfluthrin aqueous emulsion (75:1)
Chlorpyrifos-methyl 37%, betacyfluthrin 0.5%, cyclohexanone 4.0%, dimethylbenzene 8.0%, emulsifier 8.0%, urea 5.0%, defoamer 0.1%, water complement to 100%.
Preparation method: be dissolved in solvent by former medicine, adds emulsifier and mixes, then adds water stirring until form clear liquid, obtains 37.5% chlorpyrifos-methyl betacyfluthrin aqueous emulsion.
It should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Land for growing field crops application test: field control black cutworm, oriental fruit moth, the test of fragrant-flowered garlic maggot
Contrast experiment is carried out by embodiment and chlopyrifos, betacyfluthrin single dose and comparative example.Respectively with black cutworm, oriental fruit moth, fragrant-flowered garlic maggot for experimental subjects, there is with insect pest the phase of containing most and carry out dispenser, dispenser 1 time altogether, before dispenser, after dispenser 3 days, 7 days, within 21 days, investigate black cutworm quantity respectively and calculate control efficiency.Control efficiency calculates as follows:
PT in formula
0: before dispenser, PT
1: after dispenser, PT: chemicals treatment district, CK: blank district.
Field efficacy the results are shown in Table 3, table 4, table 5
Table 3 chlopyrifos and the composite field trial to black cutworm of betacyfluthrin measure
Note: lowercase alphabet is shown in significant difference in 0.05 level, capitalization represents significant difference in 0.01 level.
Table 4 chlopyrifos and betacyfluthrin is composite measures the field trial that fragrant-flowered garlic maggot is tested
Note: lowercase alphabet is shown in significant difference in 0.05 level, capitalization represents significant difference in 0.01 level.
Shown to table 4 data by table 3, chlopyrifos and betacyfluthrin is composite has obvious synergistic effect to insect pest of the plant.Can find out the control efficiency of black cutworm and fragrant-flowered garlic maggot by testing it, within the scope of weight ratio 1:80-80:1, in the scope of particularly 1:8-40:1, especially within the scope of 10:1-30:1, chlopyrifos and betacyfluthrin is composite has obvious synergistic effect, control efficiency is better than single dose.Because length is limited, be not repeated.
Table 5 embodiment compares with the control efficiency of comparative example to oriental fruit moth
Inventor find chlorpyrifos-methyl and betacyfluthrin composite, within the scope of weight ratio 1:80-80:1, also there is certain Complex synergism.Because length limit, do not enumerate, only carry out preventive effect contrast with the representational comparative example of most and embodiment, as table 5 field efficacy result shows, within the scope of weight ratio 1:80-80:1, chlopyrifos and betacyfluthrin Complex synergism obvious, particularly within the scope of 1:8-40:1, especially within the scope of 10:1-30:1, to the control efficiency of plant disease, chlorpyrifos-methyl and the composite control efficiency of betacyfluthrin is better than.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a Pesticidal combination, is characterized in that, comprises effective constituents A and B, and effective constituents A is chlopyrifos, and active ingredient B is betacyfluthrin, and its weight ratio is 1:80 ~ 80:1.
2. Pesticidal combination according to claim 1, is characterized in that, the weight ratio of described effective constituents A and B is 1:8 ~ 40:1.
3. Pesticidal combination according to claim 2, is characterized in that, the weight ratio of described effective constituents A and B is 10:1 ~ 30:1.
4. according to described Pesticidal combination arbitrary in claims 1 to 3, it is characterized in that, also containing pesticidal preparations auxiliary element in described Pesticidal combination, to make the formulation being applicable to agriculturally using.
5. Pesticidal combination according to claim 4, is characterized in that, described pesticidal preparations auxiliary element is one or more in solvent, emulsifier, dispersant, stabilizing agent, antifreezing agent or wetting agent; The formulation of described Pesticidal combination is missible oil, wetting powder, aqueous emulsion, microemulsion, suspending agent or water dispersion granule.
6. the application of the arbitrary described Pesticidal combination of claim 1 to 5, is characterized in that, the application in the pesticidal preparations of preparation control insect pest of the plant.
7. the application of Pesticidal combination according to claim 6, is characterized in that, for the preparation of control lepidoptera pest and or the pesticidal preparations of soil insect.
8. the application of the Pesticidal combination according to claim 6 or 7, is characterized in that, for the preparation of control heart-eating worm, leaf roller, base of a fruit moth, black cutworm, grub, wireworm and or the pesticidal preparations of fly maggot.
9. the application method of the arbitrary described Pesticidal combination of claim 1 to 5, it is characterized in that, effective constituents A chlopyrifos and active ingredient B betacyfluthrin are used with weight ratio 1:80 ~ 80:1, and it is used after can mixing in proportion, use in proportion simultaneously or use successively in proportion.
10. the application method of Pesticidal combination according to claim 9, it is characterized in that, effective constituents A chlopyrifos and active ingredient B betacyfluthrin are used with weight ratio 10:1 ~ 30:1, and it is used after can mixing in proportion, use in proportion simultaneously or use successively in proportion.
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| CN102792968A (en) * | 2012-08-27 | 2012-11-28 | 浙江农林大学 | Insecticide for controlling potato beetles |
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| CN102792968A (en) * | 2012-08-27 | 2012-11-28 | 浙江农林大学 | Insecticide for controlling potato beetles |
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Application publication date: 20151223 |