A kind of insecticide and acaricide containing thymol and Nylar
The present invention relates to composition pesticide and application, specifically with thymol and Nylar as effective ingredient
Composition pesticide, it is adaptable to prevent and treat Tetranychus cinnabarinus, Tetranychus piercei, nymph, thrips, diamondback moth, beet armyworm, pear psyllid etc.
Thymol：Thymol initially from hundred li it is careless in it is isolated and gain the name.The chemical name of thymol
For thymol, chemical formula C10H14O, molecular weight 150.22.Under room temperature be white to pale yellow crystals powder
End, 233 DEG C of boiling point, 48-51 DEG C of fusing point.Thymol has anti-corrosive properties, and toxicity is less than phenol, with medical value, can use
In dental health article；It also has antifungal and parasite function, can be used to process wound, storage dissec etc.；Due to
It has phenols abnormal smells from the patient, is also commonly used for anthelmintic.Various agricultures such as Tetranychus cinnabarinus, Tetranychus piercei, Oligonychus biharensis can effectively be prevented and treated
Industry evil mite, and safety, low toxicity.Thymol is plant source active component, is used for making spice, preservative, medical at present
Antibacterial and anthelmintic, it is safe.The material is easily obtained, and stable chemical nature, toxicity are low, degradable in the environment, this
A little characteristics meet the demand for development of biological pesticide, have broad application prospects as biological pesticide exploitation.
Nylar：The novel pesticide of category juvenoid, inhibitor of the mechanism of action for chitin synthetase.It is right
Bemisia tabaci, scale insect, diamondback moth, beet armyworm, Prodenia litura, pear psyllid, thrips etc. have good prevention effect, while this
Product have good prevention effect to sanitary insect pests such as fly, mosquitoes.
The resistance problems of agricultural pests are a global problems, always the emphasis of agricultural science and technology worker concern
Problem.With the continuity year in year out to Chemical Control of Harmful Insects, the increase of Pesticide use amount and not scientifical use pesticide
Etc. the impact of factor, cause pest resistance increasingly serious, the pest species for producing resistance are on the increase.Simultaneously as high intensity
Use pesticide, result in exceeded Practice for Pesticide Residue in Agricultural Products, pollution environment and peasant's drug cost a series of problems, such as increase, no
Beneficial to the sustainable development of agricultural.
Therefore, efficient, low toxicity, low-residual, the different mechanisms of action are developed, while and having the compounding system of synergistic function
Agent, not only facilitates the generation for delaying pest resistance to insecticide, but also can extend the service life of pesticide species, and reduction uses agent
Amount, it is cost-effective, reduce the pollution to environment.
The content of the invention
The present inventor's p-Thymol and Nylar compounded formula screening have made intensive studies, find thymol and
Nylar is compounded, and has obvious synergistic function, while in actually used mistake in the range of certain compound proportion
Cheng Zhong, expands insecticidal spectrum, to insect agriculturally, such as Tetranychus cinnabarinus, Tetranychus piercei, nymph, thrips, diamondback moth, Radix Betae night
Moth, pear psyllid etc. have outstanding prevention effect, after further study, complete the present invention.
Another object of the present invention is to the insecticide and acaricide containing thymol and Nylar, in use can be with
The generation for reduce dosage, reducing residual quantity of the pesticide on crops, delay pest resistance to insecticide, moreover it is possible to make which to various evils
The prevention effect of worm is used alone to compare than single dose and significantly improves, laborsaving, economical, reduces farmer's burdens.
Technical solution of the present invention：A kind of insecticide and acaricide containing thymol and Nylar, with thymol and
It is 50 that Nylar is the weight ratio of effective ingredient, thymol and Nylar:1～1:50, thymol and Nylar weight it is total
Percentage by weight in the composition is 1%～55%, and remaining is used and acceptable auxiliary element for permission in pesticide.
Described auxiliary element is solvent, emulsifying agent, wetting agent, dispersant, stabilizer, antifreezing agent, thickening agent, disintegrate
One or more combination in agent, binding agent, defoamer, penetrating agent, synergist, fire retardant and filler, above material
The known substance commonly used in being pesticidal preparations, is varied from according to the different formulations of pesticide are prepared into, but has no especially limit
It is fixed.
The present invention can be prepared into any one dosage form use in suitable agricultural production with known method, reasonable dose
Type has suspending agent, aqueous emulsion, microemulsion, water dispersible granules, wettable powder.
The frequency of administration and amount of application of the present composition changing with crops, insect, weather condition and having small variations,
The purpose of effective preventing and treating can be reached by using appropriate dosage.
Compared with prior art, it is an advantage of the current invention that：
1st, thymol and pyriproxyfen compound have synergistic function, are used alone than single dose and significantly improve to evil
The prevention effect of worm, while expanding insecticidal spectrum, solves the defect to some insect effect differences when single dose is used alone.
2nd, two kinds of effective ingredient compoundings of thymol and Nylar, reduce Pesticide use amount, reduce use cost, subtract
Light pollution to environment, the generation of pest resistance to insecticide delayed, increased the service life of pesticide.
Essence for a better understanding of the present invention, is described further to present disclosure with reference to embodiment,
But limitation of the present invention can not be considered as.
In following examples, effective ingredient adopts 95% thymol active compound and 97% Nylar active compound, each component percentage
Content is weight percentage.
Embodiment 1：10% thymol Nylar suspending agent.
Thymol 5%, Nylar 5%, alkylnaphthalene sulfonate 10%, alkylphenol-polyethenoxy base ether phosphate 10%,
Xanthan gum 2%, glycerol 2%, silicone oil 0.1%, deionized water supplies 100%.By above-mentioned effective ingredient, dispersant, wetting agent,
The mixing of thickening agent, antifreezing agent, defoamer and deionized water, sand milling in the dispersion of Jing high speed shear, sand mill, the shape in water-medium
Into high dispersive, stable suspension system, you can be obtained 10% thymol Nylar suspending agent.
Embodiment 2：15% thymol Nylar aqueous emulsion.
Nylar 6%, Nylar 9%, vegetable oil resin 15%, NPE 10%, polycarboxylate
10%th, sodium sorbate 1%, glycerol 1%, deionized water supplies 100%.By above-mentioned effective ingredient, solvent, emulsifying agent, dispersion
Agent and stabilizer are mixed to form oil phase, and antifreezing agent dissolves in water and forms water phase, slowly oil phase are added under cutter effect
In water phase, and continue shearing about 30 minutes, you can 15% thymol Nylar aqueous emulsion is obtained.
Embodiment 3：20% thymol Nylar microemulsion.
Thymol 10%, Nylar 10%, cyclohexanone 20%, styrylphenol polyoxyethylene ether 15%, citric acid
Sodium 2%, organosilicon 1%, azone 2%, deionized water supplies 100%.Effective ingredient is completely dissolved with solvent, is then added
Emulsifying agent, stabilizer, penetrating agent, synergist mix homogeneously, are eventually adding deionized water, after being sufficiently stirred for, you can be obtained 20%
Thymol Nylar microemulsion.
Embodiment 4：40% thymol Nylar wettable powder.
Thymol 20%, Nylar 20%, alkylaryl polyoxyethylene ether 6%, calcium dodecyl benzene sulfonate 8%, silicon
Diatomaceous earth supplies 100%.Effective ingredient, dispersant, wetting agent and filler are mixed by above-mentioned, Jing air-flows powder again after mechanical activation comminution
It is broken, mix homogeneously, you can 40% thymol Nylar, 70% wettable powder is obtained.
Embodiment 5：50% thymol Nylar water dispersible granules.
Thymol 20%, Nylar 30%, naphthalenesulfonate formaldehyde condensation compound 15%, alkyl sulfate 10%, carbamide
2%th, polyvinyl alcohol 2%, Kaolin supply 100%.By above-mentioned effective ingredient, dispersant, wetting agent, disintegrating agent, binding agent and
Filler mix homogeneously, with micro jet crush, Jing mediate, carry out in being subsequently adding fluidized-bed granulation dryer pelletize,
It is dried, sieves, you can 50% thymol Nylar water dispersible granules is obtained.
Described wetting agent is selected from sodium lauryl sulphate, calcium dodecyl benzene sulfonate, alkylbenzenesulfonate Polyethylene oxide
Triphen phosphenylic acid salt dimly, spaonin powder, in one or more.
Described disintegrating agent is selected from bentonite, aluminum chloride, citric acid, one or more in sodium bicarbonate.
Described thickening agent is selected from xanthan gum, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, polyvinyl alcohol
In one or more.
Described stabilizer is selected from sodium citrate, the one kind in resorcinol.
Described antifreezing agent is selected from ethylene glycol, one or more in Propylene Glycol.
Described defoamer be selected from silicone oil, silicone compound, one or more of C8-10 fatty alcohol.
Described filler is selected from Kaolin, kieselguhr, bentonite, attapulgite, one or more in starch.
The indoor biological determination of activity of insecticide and acaricide of the present invention and field efficacy checking.
1st, the indoor joint toxicity measuring of thymol and Nylar to diamondback moth.
For test worm：Select indoor continuous to raise 5 generations and its Individual Size responsive type diamondback moth consistent with physiological statuss
Third-instar larvae.Temperature (25 ± 2) DEG C.Relative humidity 65% ± 5%, periodicity of illumination 12/12h (L/D).
Reagent agent：97% Nylar active compound and 95% Nylar active compound.
Medicament is prepared：First active compound is dissolved with cyclohexanone, two appropriate active compounds are made into according to the result of preliminary experiment some
Individual different ratio, then by each process, to be diluted to several Concentraton gradient respectively stand-by with cyclohexanone.
The drop method recommended using NY/T1 154.1-2006 is measured.By micro intravenous drip device solvent clean, adjust
Dropper is to resting state.The test worm of neat and consistent is chosen with being placed in 9cm culture dishs, then after CO2 mild paralysis with brush pen
Medicament is dripped to by head the abdominal part of polypide, per point drops physic liquor 0.1L, with the respective rings that drop 0.1L contains with micro intravenous drip device
The process of ketone is control, the test worm after drop is moved to (28 ± 2) DEG C, is normally cultivated in the culture dish of relative humidity 75%.
4 repetitions are processed often, often repeatedly 20 test worms.
Control time：After process, 24h investigation test worm death condition (judges that test worm death standard is gently pierced without autonomous anti-with pin
Should), record total borer population and dead borer population.
Data statisticss and analysis：According to investigation statisticses, the corrected mortality of each process is calculated.And with reference to NY/T1 154.1-
2006 co-toxicity coefficients (CTC values) that mixture is calculated using the abundant methods of Sun Yun.If control mortality rate,<5%, do not correct, compare mortality rate
Between 5%-20%, by formula live hardships, the date it is depressed, the refinement of a good life is corrected, compare mortality rate>
20%, test need to be reformed.
With the logarithm value of drug concentration (mg/L) as independent variable X, with the niqueMin of corrected mortality as dependent variable y, respectively
Virulence regression equation is set up, is calculated altogether according to the abundant methods of Sun Yun using the EC50 of DPS computed in software single dose and each proportioning mixture
Malicious coefficient (CTC).Co-toxicity coefficient CTC, computing formula are as follows：(with thymol as standard agent, its toxicity index is for 100)：
EC50 × 100 of the EC50/ Nylars of toxicity index (the TI)=thymol of Nylar
EC50 × 100 of the EC50/M of true toxicity index (the ATI)=thymol of M
TI × P Nylars of the TI × P thymols+Nylar of theoretical toxicity index (the TTI)=thymol of M
TTI × 100 of the ATI/M of co-toxicity coefficient (the CTC)=M of M
M is the mixture of thymol and Nylar different ratio
P thymols are the shared ratio in mixture of thymol
P Nylars are the shared ratio in mixture of Nylar.
Toxicity test result：
1 thymol of table and indoor measurement result of the Nylar to diamondback moth
As it can be seen from table 1 pressing effective ingredient thymol and Nylar 50:1～1:50 (by weight) dilution when its
Malicious coefficient is all higher than 120, shows certain potentiation, and wherein thymol and Nylar are 1：20～20：1 potentiation is made
With most obvious.Result of the test shows that thymol has higher activity to diamondback moth with pyriproxyfen compound in room conditions,
Suggestion is to suitable proportion 1：20～20：1 or so mixture preparation carries out further field control effectiveness test, to evaluate its field reality
2nd, field test preventing and treating diamondback moth
2.1 test method
Test is carried out in Hainan Province Dengmai County old city town truck garden.Carry out by each process design concentration conventional to water spray
Mist.Spraying equipment is WF-16 type knapsack hand sprayers, and shower nozzle is single fan nozzle, and operating pressure is 0.2-
0.4Mpa, spray amount are 0.36-0.48L/min, carry out conventional spraying, make every effort to uniform thoughtful during spray.Field pickles during dispenser
Moth is 1～2 instar larvae peak period.
2.2 investigation method
5 points of samplings of diagonal are pressed in every cell before dispenser, choose 2～3 plants of Caulis et Folium Brassicae capitatae for having Eggs of Diamondback Moth and larva at per.
Diamondback moth larvae head number in probability demarcation strain, in this, as insect population before dispenser.The 7th day after dispenser, 14 days, 21 days difference
The diamondback moth larvae number of survival is remained in investigation fixed point singling.To correct Revision insect recluced rate as prevention effect.
2.3 drug effect computational methods
Revision insect recluced rate (%)=(larva number after medicine prelarva number-medicine)/medicine prelarva number × 100
Preventive effect (%)=(treatment region Revision insect recluced rate-control Revision insect recluced rate)/(100- check plots Revision insect recluced rate) ×
2.4 poisoning investigation methods
7 days observation Caulis et Folium Brassicae capitatae growing states after medicine, range estimation medicament is to Caulis et Folium Brassicae capitatae without poisoning.
2.5 table, 2 test of pesticide effectiveness result
From table 2 it can be seen that the Mixed Pharmacy of different proportion, carries out field experiment by different consumptions, after medicine, which is to little
The prevention effect of diamond-back moth is better than comparison medicament, with thymol and Nylar with 10：10 ratios compounding preventing and treating diamondback moth instant effect,
Efficiency time is long, and prevention effect is good, and insecticidal effect is incremented by with the increase of consumption.This mixture, effectively can control little
Harm of the diamond-back moth to host, the raising and volume increase to quality of vegetable are significant, have stronger popularizing value, institute
With, very big economic worth is produced in the research and development and promotion conference of the present invention, the volume increase to vast vegetable, the peasant household in fruit tree producing region increases
Receive and the protection tool of local environment is of great significance.