CN102696660B - A kind of Pesticidal combination containing Tefluthrin - Google Patents

A kind of Pesticidal combination containing Tefluthrin Download PDF

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CN102696660B
CN102696660B CN201210135727.1A CN201210135727A CN102696660B CN 102696660 B CN102696660 B CN 102696660B CN 201210135727 A CN201210135727 A CN 201210135727A CN 102696660 B CN102696660 B CN 102696660B
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tefluthrin
active component
agent
pesticidal combination
test
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CN102696660A (en
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张伟
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Shaanxi Yitianfeng Crop Technology Co ltd
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Shaanxi Welch Crop Protection Co Ltd
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Abstract

The invention discloses a kind of Pesticidal combination containing Tefluthrin, Pesticidal combination containing active components A Yu active component B, active components A is selected from Tefluthrin, active component B is selected from any one compound following: methoxyfenozide, spiral shell worm ethyl ester, metaflumizone, ring tebufenozide, and the weight ratio of active components A and active component B is 1 80 ~ 60 1.The present composition can prevent and treat various pests, and has obvious potentiation, expands insecticidal spectrum, and can reduce pesticide usage amount, reduces pesticide residual quantity on crop, alleviates environmental pollution.

Description

A kind of Pesticidal combination containing Tefluthrin
Technical field
The invention belongs to technical field of pesticide, relate to a kind of Pesticidal combination containing Tefluthrin answering on crop pest With.
Technical background
Tefluthrin (Tefluthrin) chemical name: 2,3,5,6-tetra-fluoro-2-methyl base (suitable)-(1RS, RS)-3-(2- Chloro-2,3,3-trifluoropropyl-1-thiazolinyls)-2,2-dimethyl cyclopropane carboxylic acid's ester, molecular formula: C17H14ClF7O2.Tefluthrin is to make It is first pyrethroid that can be used as soil insecticide, efficient to coleoptera, Lepidoptera and dipteral insect, can be with granule Agent, soil are sprayed or the mode of seed treatment is used.Its volatility is good, can the most fully divide a word with a hyphen at the end of a line to prevent and treat soil evil Worm.It is about half-life one month big Tanaka, thus it can keep longer residual effect to insect, and be unlikely to cause in soil Extended residual.
Methoxyfenozide (Methoxyfenozide) chemical name: the N-tert-butyl group-N'-(3-methyl-2-toluyl Base)-3,5-dimethylbenzohydrazide, molecular formula: C22H28N2O3.The one of insect growth regulator, IGR.Ecdyson insecticides, Suppression is ingested.Even if mainly the normal growth of interference insect is grown insect and is casted off a skin and dead.
Spiral shell worm ethyl ester (Spirotetramat) chemical name: 4-(ethoxy carbonyl epoxide)-8-methoxyl group-3-(2,5-bis- Tolyl)-1-azaspiro [4,5]-decyl-3-alkene-2-ketone, molecular formula: C21H27NO5.Spiral shell worm ethyl ester has the function Characteristics of uniqueness, Being the existing insecticide of the most rare two-way Uptake and translocation performance, insecticidal spectrum is wide, and the lasting period was long, it is possible to provide up to 8 weeks have Effect preventing and treating.It is that the fatty biosynthesis by interference insect causes dead larvae, reduces the fertility of adult.Owing to it is only Special mechanism of action, can prevent and treat the insect that existing insecticide produces resistance effectively, resists at the same time as nicotinic insecticide Property management important kind.
Metaflumizone (Metaflumizone) chemical name: (E+Z)-[2-(4-cyano group benzene)-1-[3-(trifluoromethyl) Benzene] ethylidene]-N-[4-(trifluoromethyl) benzene]-hydrazine carbonyl oxamides, molecular formula: C24H16 F6N4O2.Metaflumizone is a kind of Urea insecticide, hot and cold storage is stable (54 DEG C).Mainly stomach poison function, band action of contace poison, hinders neural sodium path Causing neural paralysis, preventing and treating lepidoptera and coleopteran pest, to mammal and non-target organism low-risk.
Ring tebufenozide (Chromafenozide) chemical name: 2,-the tert-butyl group-5-methyl-2,-(3,5-2 toluyl) color Alkane-6-methylhydrazide, molecular formula: C24H30N2O3.Ring tebufenozide is bishydrazide insecticide, ring tebufenozide through insecticide absorb after Suppressing insecticide feed to cause insecticide to cast off a skin in advance in several hours simultaneously and cause death, it is by regulation germling hormone and casts off a skin sharp The molting process of element moving obstacle insecticide, causes the death of casting off a skin too early of insecticide.Because it can quickly suppress the feed of insecticide, For the 1GR that other are conventional, the harm to crop can be reduced.
Summary of the invention
Tefluthrin, methoxyfenozide, spiral shell worm ethyl ester, metaflumizone, ring tebufenozide single dose life-time service may bring anti- Property occur, degradation problem under drug effect, the Pesticidal combination that the present invention proposes contains active components A and active component B, and in right amount Surfactant and carrier.
A kind of Pesticidal combination containing Tefluthrin, containing active components A and active component B, active components A becomes with activity Dividing B weight ratio is 1 80 ~ 60 1, and described active components A is selected from Tefluthrin, and active component B is selected from methoxyfenozide, spiral shell worm One of ethyl ester, metaflumizone, ring tebufenozide are planted;Active components A and the preferred weight ratio of active component B are 1 60 ~ 40 1;More The weight ratio being preferably Tefluthrin and methoxyfenozide is 1 30 ~ 10 1;Tefluthrin is 1 with the weight ratio of spiral shell worm ethyl ester 30 ~ 10 1;Tefluthrin is 1 30 ~ 31 with the weight ratio of metaflumizone;Tefluthrin is 1 30 with the weight ratio of ring tebufenozide ~ 10 1.
Described Pesticidal combination can be made into wettable powder, water dispersible granules, suspending agent, suspension emulsion, microemulsion, water and milk Agent, microcapsule suspending agent, microcapsule suspension-suspendinagent agent.
Described Pesticidal combination is used for preventing and treating cereal crop, fruit tree, vegetable, fibre crops, ornamental plant, beans work The application of insect pest on thing.
Described insect includes beet armyworm, diamondback moth, Prodenia litura, cabbage butterfly, flea beetle, Bemisia tabaci, olethreutid, Fructus Persicae Grapholita spp, scale insect, red spider, planthopper, rice leaf roller, striped rice borer, bollworm, pink bollworm, bean-pod borer, aphid, Tea lesser leafhopper, Pyrausta nubilalis (Hubern)., cutworm.
In the present composition, the content of active component depends on amount of application when being used alone, and also depends on a kind of chemical combination The mixed ratio of thing and another kind of compound and potentiation degree, also the most relevant with target pest.Generally in compositions The weight percentage of active component is the 2%~90% of gross weight, is preferably 5%~80%.According to different preparation types, live Property component content scope is different.Generally, liquid preparation contains the active substance of by weight 1%~60%, and preferably 5% ~50%;Solid preparation contains the active substance of by weight 5%~80%, preferably 10%~80%.
At least containing a kind of surfactant in the Pesticidal combination of the present invention, when being beneficial to use, active component is in water Dispersion.Surface-active contents is the 2%~30% of total formulation weight amount, and surplus is solid or liquid diluent.
Surfactant selected by the Pesticidal combination of the present invention is known in those skilled in the art: can be selected from One or more in dispersant, wetting agent, thickening agent or defoamer.According to different dosage form, preparation can also contain this area Stabilizer well known to technical staff, antifreeze etc..
The Pesticidal combination of the present invention through dilution or directly can be used before use by user.Its preparation can be by ability Prepared by the processing method well known to field technique personnel, will add after active component mixes with liquid flux or solid carrier One or more in surfactant such as dispersant, stabilizer, wetting agent, binding agent, defoamer etc..
Compositions comprises following component and content when making wettable powder: active components A 1% ~ 60%, active component B1% ~ 80%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, filler surplus.
Compositions includes following component and content when making water dispersible granules: active components A 1% ~ 60%, active component B 1% ~ 80%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, disintegrating agent 1% ~ 10%, binding agent 0 ~ 8%, filler surplus.
Compositions includes following component and content when making suspending agent: active components A 1% ~ 50%, active component B 1% ~ 50%, dispersant 1% ~ 10%, wetting agent 1% ~ 10%, defoamer 0.01% ~ 2%, thickening agent 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add To 100%.
Compositions includes following component and content when making suspension emulsion: active components A 1% ~ 50%, active component B1% ~ 50%, emulsifying agent 1% ~ 10%, dispersant 1% ~ 10%, solvent 0 ~ 20%, defoamer 0.01% ~ 2%, thickening agent 0 ~ 2%, antifreeze 0 ~ 8%, Stabilizer 0 ~ 3%, deionized water add to 100%.
Compositions includes following component and content when making microemulsion: active components A 1% ~ 50%, active component B 1% ~ 50%, emulsifying agent 3% ~ 25%, solvent 1% ~ 10%, antifreeze 0 ~ 8%, stabilizer 0 ~ 3%, defoamer 0.01% ~ 2%, deionized water add to 100%。
Compositions includes following component and content when making aqueous emulsion: active components A 1% ~ 50%, active component B1% ~ 50%, solvent 1% ~ 20%, emulsifying agent 1% ~ 12%, antifreeze 0 ~ 8%, defoamer 0.01% ~ 2%, thickening agent 0 ~ 2%, deionized water add to 100%。
Compositions includes following component and content when making microcapsule suspending agent: active components A
1% ~ 50%, active component B 1% ~ 50%, macromolecule cyst material 1% ~ 10%, dispersant 2% ~ 10%, solvent 1% ~ 10%, Emulsifying agent 1% ~ 7%, pH adjusting agent 0.01% ~ 5%, defoamer 0.01% ~ 2%, deionized water add to 100%.
Compositions includes following component and content when making microcapsule suspension-suspendinagent agent: active components A 1% ~ 50%, activity become Point B1% ~ 50%, macromolecule cyst material 1% ~ 12%, dispersant 1%-12%, wetting agent 1%-8%, solvent 1% ~ 15%, emulsifying agent 1% ~ 8%, defoamer 0.01% ~ 2%, thickening agent 0 ~ 2%, pH adjusting agent 0.01% ~ 5%, deionized water add to 100%.
The wettable powder the key technical indexes of the present invention:
The water dispersible granules the key technical indexes of the present invention:
The suspending agent the key technical indexes of the present invention:
The suspension emulsion the key technical indexes of the present invention:
The microemulsion the key technical indexes of the present invention:
The aqueous emulsion the key technical indexes of the present invention:
The microcapsule suspending agent the key technical indexes of the present invention:
The microcapsule suspension-suspendinagent agent the key technical indexes of the present invention:
It is an advantage of the current invention that:
(1) present composition has good potentiation and lasting effect within the specific limits, and preventive effect is higher than single dose;(2) agriculture Medicinal dose reduces, and reduces pesticide residual quantity on crop, alleviates environmental pollution;(3) expand insecticidal spectrum, Cereal is made Beet armyworm on thing, fruit tree, vegetable, fibre crops, ornamental plant, legume crop, diamondback moth, Prodenia litura, cabbage butterfly, jumping First, Bemisia tabaci, olethreutid, small heart-eating peach worm, scale insect, red spider, planthopper, rice leaf roller, striped rice borer, bollworm, Pink bollworm, bean-pod borer, aphid, tea lesser leafhopper, Pyrausta nubilalis (Hubern)., cutworm have greater activity;(4) to person poultry safety, environment The compatibility is good;And preparation adhesion strength strengthens, resistance of rainwater washing against.
Detailed description of the invention
Below in conjunction with embodiment, further instruction of the present invention, the percentage ratio in embodiment are all weight percentage, but The invention is not limited in this.
Application Example one
Example 1 ~ 13 wettable powder
By Tefluthrin, active component B, dispersant, wetting agent, filler mixing, mix homogeneously in mixed cylinder, through air-flow Pulverizer remixes uniformly after pulverizing, and i.e. can be made into wettable powder product of the present invention.Specifically it is shown in Table 1.
Table 1 example 1 ~ 13 each component and content
Example 14 ~ 26 water dispersible granules
Tefluthrin, active component B, dispersant, wetting agent, binding agent, disintegrating agent, filler are obtained through comminution by gas stream together To the particle diameter needed, obtain granulation materials.Through in item is quantitatively sent into fluidized bed granulating dryer and granulation and dried, system Obtain water dispersible granules product of the present invention.Specifically it is shown in Table 2.
Table 2 example 14 ~ 26 each component and content
Example 27 ~ 36 suspending agent
By dispersant, wetting agent, defoamer, thickening agent, antifreeze through high speed shear mix homogeneously, add seven fluorine chrysanthemums Ester, active component B, surplus deionized water supplies, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all 5 μm with Under, prepare suspending agent product of the present invention.Specifically it is shown in Table 3.
Table 3 example 27 ~ 36 each component and content
Example 37 ~ 46 suspension emulsion
By dispersant, defoamer, thickening agent, antifreeze, stabilizer in above-mentioned formulation material through high speed shear mix homogeneously, Add active component B, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, prepare active component B and suspend Agent, then by Tefluthrin, solvent, emulsifying agent and the various direct emulsifying of auxiliary agent high speed agitator to suspending agent, prepares this Suspension emulsion product described in invention.Specifically it is shown in Table 4,5.
Table 4 example 37 ~ 41 each component and content
Table 5 example 42 ~ 46 each component and content
Example 47 ~ 51 microemulsion
Tefluthrin, active component B are dissolved in equipped with in the homogenizer of solvent, by emulsifying agent, antifreeze, defoamer, Stabilizer joins in the homogenizer equipped with above-mentioned solution, and surplus deionized water strongly mixes after supplying and homogenizes, After obtain the microemulsion product of the present invention that clear appearance is transparent.Specifically it is shown in Table 6.
Table 6 example 47 ~ 51 each component and content
Example 52 ~ 60 aqueous emulsion
Tefluthrin, active component B, solvent, emulsifying agent are added together, make to be dissolved into homogeneous oil phase;By deionized water, Antifreeze, thickening agent, defoamer mix, and become homogeneous aqueous phase.Under high velocity agitation, aqueous phase is added oil phase, prepare this Aqueous emulsion product described in invention.Specifically it is shown in Table 7,8.
Table 7 example 52 ~ 55 each component and content
Table 8 example 56 ~ 60 each component and content
Methoxyfenozide, spiral shell worm ethyl ester, metaflumizone, ring tebufenozide in table 1-table 8 are exchanged, novel formulation can be prepared.
Example 61 ~ 63 microcapsule suspending agent
By Tefluthrin, active component B, macromolecule cyst material, solvent mixing, make to be dissolved into homogeneous oil phase, shearing Under the conditions of, oil phase is joined containing emulsifying agent, pH adjusting agent, dispersant, defoamer aqueous phase solution in, surplus deionization Water is supplied, and bi-material reacts at oil-water interfaces, forms macromolecule cyst wall, makes the present composition finely disseminated micro- Capsule suspending agent product.Specifically it is shown in Table 9.
Table 9 example 61 ~ 63 each component and content
Example 64 ~ 66 microcapsule suspension-suspendinagent agent
By Tefluthrin, macromolecule cyst material, solvent mixing, make to be dissolved into homogeneous oil phase, by oil phase at shearing condition Under join containing emulsifying agent, pH adjusting agent aqueous phase solution in, make finely disseminated microcapsule suspending agent.By dispersant, wet Profit agent, defoamer, thickening agent, through high speed shear mix homogeneously, add active component B, and in ball mill, ball milling 2 ~ 3 hours, make Diameter of particle, all below 5 μm, prepares suspending agent, is then joined by suspending agent in the aqueous phase solution of micro-capsule suspension, Deionized water supplies surplus, makes the present composition finely disseminated microcapsule suspension-suspendinagent agent product.Specifically it is shown in Table 10.
Table 10 example 64 ~ 66 each component and content
The embodiment of the present invention is the method using Toxicity Determination and field test to combine.First pass through indoor virulence to survey Fixed, after clear and definite two kinds of medicaments are compounding by a certain percentage co-toxicity coefficient (CTC), CTC < 80 is antagonism, 80≤CTC≤120 For summation action, CTC > 120 is potentiation, on this basis, then carries out field test.
Test method: respectively the mother solution of each mixed agent is diluted to during test five series concentration, is respectively placed in beaker Standby.Use the method that first leaching leaf is followed by worm, by the blade of the same size not in contact with any medicament in the medicinal liquid configured Take out after soaking 5s, naturally dry, put in insect box, then connect for examination larva, raise under the conditions of 25 DEG C, often process 3 Secondary repetition, often repeating examination borer population used is 50, sets blank simultaneously, checks dead borer population in 72h, calculates mortality rate and correction Mortality rate, tries to achieve virulence regression equation and calculates LC50Value.If comparison mortality rate is more than 10%, then it is considered as invalid test.Calculate public affairs Formula is as follows:
Insect corrected mortality is converted into probit value (y), and concentration for the treatment of (μ g/ml) is converted into logarithm value (x), with minimum Square law draws virulence regression equation, and thus calculates the value of every kind of medicament.Common poison system is calculated according to the abundant equation of Sun Yun Number CTC.Computing formula is following (with Tefluthrin as standard agent, its toxicity index is 100):
TI × the P of theoretical toxicity index (the TTI)=Tefluthrin of MTefluthrinTI × the P of+active component BEffective active composition B
In formula: M is the mixture of different ratio
PEffective active composition BFor the ratio that effective active composition B is shared in the composition
PTefluthrinFor the ratio that Tefluthrin is shared in the composition
B plants selected from one of methoxyfenozide, spiral shell worm ethyl ester, metaflumizone, ring tebufenozide.
Application Example two:
For examination insect: rice-stem borer.
Test medicine is provided by Shaanxi Welch Crop Protection Co., Ltd..
EXPERIMENTAL DESIGN: determine Tefluthrin and the former medicine of methoxyfenozide and the two different ratio mixture through pilot study Effectively lethasl concentration scope.
Toxicity test result
Table 11 Tefluthrin toxicity test analysis of results table to rice-stem borer compounding with methoxyfenozide
As shown in Table 11, Tefluthrin and methoxyfenozide compound the proportioning of preventing and treating rice-stem borer when 1 80 ~ 60 1, Co-toxicity coefficient is all higher than 120, illustrate both in the range of 1 80 ~ 60 1 mixture all show potentiation, when Tefluthrin with The proportioning of methoxyfenozide is when 1 30 ~ 10 1, and potentiation is the most prominent, and co-toxicity coefficient is all higher than 210.Wherein when seven fluorine chrysanthemums When ester and methoxyfenozide weight ratio are 13, co-toxicity coefficient is maximum, and potentiation is the most obvious.Discovery seven fluorine are tested through applicant The proportioning of chrysanthemum ester and methoxyfenozide is 10:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8, When 1:9,1:10,1:15,1:20,1:25,1:30, Tefluthrin is compounding with methoxyfenozide to beet armyworm, diamondback moth, twill Noctuid, cabbage butterfly, flea beetle, Bemisia tabaci, olethreutid, small heart-eating peach worm, scale insect, red spider, planthopper, rice leaf roller, Striped rice borer, bollworm, pink bollworm, bean-pod borer, aphid, tea lesser leafhopper, Pyrausta nubilalis (Hubern)., the preventing and treating of cutworm have significantly increasing Effect effect, co-toxicity coefficient is all higher than 120.
Application Example three:
For examination insect: citrus red mite.
Test medicine is provided by Shaanxi Welch Crop Protection Co., Ltd..
EXPERIMENTAL DESIGN: determine having of Tefluthrin and the spiral shell former medicine of worm ethyl ester and the two different ratio mixture through pilot study Effect lethasl concentration scope.
Toxicity test result
Table 12 Tefluthrin toxicity test analysis of results table to citrus red mite compounding with spiral shell worm ethyl ester
As shown in Table 12, Tefluthrin and spiral shell worm ethyl ester compound the proportioning of preventing and treating citrus red mite when 1 80 ~ 60 1, altogether Poison coefficient is all higher than 120, illustrates that both all show potentiation, when Tefluthrin and spiral shell at mixture in the range of 1 80 ~ 60 1 The proportioning of worm ethyl ester is when 1 30 ~ 10 1, and potentiation is the most prominent, and co-toxicity coefficient is all higher than 210.Wherein when Tefluthrin with When spiral shell worm ethyl ester weight ratio is 13, co-toxicity coefficient is maximum, and potentiation is the most obvious.Through applicant test discovery Tefluthrin with The proportioning of spiral shell worm ethyl ester is 10:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1: 10, when 1:15,1:20,1:25,1:30, Tefluthrin is compounding with spiral shell worm ethyl ester to beet armyworm, diamondback moth, Prodenia litura, dish White butterfly, flea beetle, Bemisia tabaci, olethreutid, small heart-eating peach worm, scale insect, red spider, planthopper, rice leaf roller, striped rice borer, Bollworm, pink bollworm, bean-pod borer, aphid, tea lesser leafhopper, Pyrausta nubilalis (Hubern)., the preventing and treating of cutworm have obvious potentiation, Co-toxicity coefficient is all higher than 120.
Application Example four:
For examination insect: brassicaceous vegetable flea beetle.
Test medicine is provided by Shaanxi Welch Crop Protection Co., Ltd..
EXPERIMENTAL DESIGN: determine having of the former medicine of Tefluthrin and metaflumizone and the two different ratio mixture through pilot study Effect lethasl concentration scope.
Toxicity test result
Table 13 Tefluthrin toxicity test analysis of results table to brassicaceous vegetable flea beetle compounding with metaflumizone
As shown in Table 13, Tefluthrin and metaflumizone compound the proportioning of preventing and treating brassicaceous vegetable flea beetle 1 80 ~ 60 When 1, co-toxicity coefficient is all higher than 120, illustrates that both all show potentiation, when seven fluorine chrysanthemums at mixture in the range of 1 80 ~ 60 1 The proportioning of ester and metaflumizone is when 1 30 ~ 31, and potentiation is the most prominent, and co-toxicity coefficient is all higher than 210.Wherein when seven fluorine When chrysanthemum ester and metaflumizone weight ratio are 1 10, co-toxicity coefficient is maximum, and potentiation is the most obvious.Discovery seven is tested through applicant The proportioning of Flumethrin and metaflumizone is 3:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1: 12, when 1:13,1:14,1:15,1:20,1:25,1:30, Tefluthrin and metaflumizone are compounding to beet armyworm, diamondback moth, tiltedly Autographa spp, cabbage butterfly, flea beetle, Bemisia tabaci, olethreutid, small heart-eating peach worm, scale insect, red spider, planthopper, cnaphalocrocis Snout moth's larva, striped rice borer, bollworm, pink bollworm, bean-pod borer, aphid, tea lesser leafhopper, Pyrausta nubilalis (Hubern)., the preventing and treating of cutworm have substantially Potentiation, co-toxicity coefficient is all higher than 120.
Application Example five:
For examination insect: Fructus Mali pumilae small heart-eating peach worm.
Test medicine is provided by Shaanxi Welch Crop Protection Co., Ltd..
EXPERIMENTAL DESIGN: determine having of Tefluthrin medicine former with ring tebufenozide and the two different ratio mixture through pilot study Effect lethasl concentration scope.
Toxicity test result
Table 14 Tefluthrin toxicity test analysis of results table to Fructus Mali pumilae small heart-eating peach worm compounding with ring tebufenozide
As shown in Table 14, Tefluthrin and ring tebufenozide compound the proportioning of preventing and treating Fructus Mali pumilae small heart-eating peach worm 1 80 ~ 60 1 Time, co-toxicity coefficient is all higher than 120, illustrates that both all show potentiation at mixture in the range of 1 80 ~ 60 1, works as Tefluthrin With the proportioning of ring tebufenozide when 1 30 ~ 10 1, potentiation is the most prominent, and co-toxicity coefficient is all higher than 220.Wherein when seven fluorine chrysanthemums When ester and ring tebufenozide weight ratio are 13, co-toxicity coefficient is maximum, and potentiation is the most obvious.Discovery seven fluorine chrysanthemums are tested through applicant The proportioning of ester and ring tebufenozide is 10:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9, When 1:10,1:15,1:20,1:25,1:30, Tefluthrin and ring tebufenozide compounding to beet armyworm, diamondback moth, Prodenia litura, Cabbage butterfly, flea beetle, Bemisia tabaci, olethreutid, small heart-eating peach worm, scale insect, red spider, planthopper, rice leaf roller, two changes Snout moth's larva, bollworm, pink bollworm, bean-pod borer, aphid, tea lesser leafhopper, Pyrausta nubilalis (Hubern)., the preventing and treating of cutworm have obvious potentiation to make With, co-toxicity coefficient is all higher than 120.
Application Example six Tefluthrin and active component B and the compounding preventing and treating Fructus Mali pumilae small heart-eating peach worm test of pesticide effectiveness thereof
This experimental establishment is in Xianyang, Shanxi province city, and test medicine is researched and developed by Shaanxi Welch Crop Protection Co., Ltd., carried Confession, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm ethyl ester Suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Investigate Fructus Mali pumilae small heart-eating peach worm insect pest index before medicine, in insect pest early period of origination dispenser, within after dispenser 1 day, 3 days, 7 days, adjust Look into insect pest index and calculate preventive effect.Result of the test is as follows:
Table 15 Tefluthrin and active component B and the compounding preventing and treating Fructus Mali pumilae small heart-eating peach worm test of pesticide effectiveness thereof
As can be seen from Table 15, Fructus Mali pumilae small heart-eating peach worm can effectively be prevented and treated after Tefluthrin is compounding with active component B, preventing and treating Effect is superior to the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
Application Example seventy-seven Flumethrin and active component B and the compounding preventing and treating Citrus scale insect test of pesticide effectiveness thereof
This experimental establishment is researched and developed at Shaanxi Province's Hanzhong City, test medicine by Shaanxi Welch Crop Protection Co., Ltd., is carried Confession, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm ethyl ester Suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Citrus scale insect insect pest index is investigated before medicine, in insect pest early period of origination dispenser, 1 day, 3 days, 7 days investigation worms after dispenser Evil index also calculates preventive effect.Result of the test is as follows:
Table 16 Tefluthrin and active component B and the compounding preventing and treating Citrus scale insect test of pesticide effectiveness thereof
As can be seen from Table 16, Citrus scale insect, prevention effect can effectively be prevented and treated after Tefluthrin is compounding with active component B It is superior to the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
Application Example eight Tefluthrin and active component B and the compounding preventing and treating rice leaf roller test of pesticide effectiveness thereof
This experimental establishment is researched and developed at Shaanxi Province's Hanzhong City, test medicine by Shaanxi Welch Crop Protection Co., Ltd., is carried Confession, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm ethyl ester Suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Rice leaf roller insect pest index is investigated before medicine, in insect pest early period of origination dispenser, 1 day, 3 days, 7 days investigation worms after dispenser Evil index also calculates preventive effect.Result of the test is as follows:
Table 17 Tefluthrin and active component B and the compounding preventing and treating rice leaf roller test of pesticide effectiveness thereof
As can be seen from Table 17, rice leaf roller, prevention effect can effectively be prevented and treated after Tefluthrin is compounding with active component B It is superior to the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
Application Example nine Tefluthrin and active component B and the compounding preventing and treating Pyrausta nubilalis (Hubern). test of pesticide effectiveness thereof
This experimental establishment is researched and developed at Shaanxi Province's Luochuan County, test medicine by Shaanxi Welch Crop Protection Co., Ltd., is carried Confession, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm ethyl ester Suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Investigate Pyrausta nubilalis (Hubern). insect pest index before medicine, in insect pest early period of origination dispenser, within after dispenser 1 day, 3 days, 7 days, investigate insect pest and refer to Count and calculate preventive effect.Result of the test is as follows:
Table 18 Tefluthrin and active component B and the compounding preventing and treating Pyrausta nubilalis (Hubern). test of pesticide effectiveness thereof
As can be seen from Table 18, can effectively prevent and treat Pyrausta nubilalis (Hubern). after Tefluthrin is compounding with active component B, prevention effect is the most excellent In the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
Application Example ten Tefluthrin and active component B and compounding preventing and treating brassicaceous vegetable cutworm drug effect examination thereof Test
This experimental establishment is ground by Shaanxi Welch Crop Protection Co., Ltd. at Xian District, Shanxi Province suburban area, test medicine Send out, provide, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm Ethyl ester suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Before medicine investigate brassicaceous vegetable cutworm insect pest index, in insect pest early period of origination dispenser, after dispenser 1 day, 3 days, 7 It investigation insect pest index also calculates preventive effect.Result of the test is as follows:
Table 19 Tefluthrin and active component B and the compounding preventing and treating brassicaceous vegetable cutworm test of pesticide effectiveness thereof
As can be seen from Table 19, after Tefluthrin is compounding with active component B, can effectively prevent and treat brassicaceous vegetable cutworm, Prevention effect is superior to the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
Application Example 11 Tefluthrin and active component B and compounding preventing and treating brassicaceous vegetable flea beetle drug effect examination thereof Test
This experimental establishment is ground by Shaanxi Welch Crop Protection Co., Ltd. at Xian District, Shanxi Province suburban area, test medicine Send out, provide, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm Ethyl ester suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Before medicine investigate brassicaceous vegetable flea beetle insect pest index, in insect pest early period of origination dispenser, after dispenser 3 days, 7 days, 15 It investigation insect pest index also calculates preventive effect.Result of the test is as follows:
Table 20 Tefluthrin and active component B and the compounding preventing and treating brassicaceous vegetable flea beetle test of pesticide effectiveness thereof
As can be seen from Table 20, after Tefluthrin is compounding with active component B, can effectively prevent and treat brassicaceous vegetable flea beetle, anti- Control effect and be superior to the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
Application Example 12 Tefluthrin and active component B and the compounding preventing and treating Fructus Lycopersici esculenti Bemisia tabaci test of pesticide effectiveness thereof
This experimental establishment is ground by Shaanxi Welch Crop Protection Co., Ltd. at Xian District, Shanxi Province suburban area, test medicine Send out, provide, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm Ethyl ester suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Fructus Lycopersici esculenti Bemisia tabaci insect pest index is investigated before medicine, in insect pest early period of origination dispenser, 1 day, 3 days, 7 days investigation worms after dispenser Evil index also calculates preventive effect.Result of the test is as follows:
Table 21 Tefluthrin and active component B and the compounding preventing and treating Fructus Lycopersici esculenti Bemisia tabaci test of pesticide effectiveness thereof
As can be seen from Table 21, Fructus Lycopersici esculenti Bemisia tabaci, prevention effect can effectively be prevented and treated after Tefluthrin is compounding with active component B It is superior to the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
Application Example 13 Tefluthrin and active component B and the compounding preventing and treating cotton boll worm test of pesticide effectiveness thereof
This experimental establishment is in Weinan City Dali County, Shaanxi Province, and test medicine is ground by Shaanxi Welch Crop Protection Co., Ltd. Send out, provide, comparison medicament 10% Tefluthrin cream (autogamy), 240g/L methoxyfenozide suspending agent (commercial), 240g/L spiral shell worm Ethyl ester suspending agent (autogamy), 22% metaflumizone suspending agent (commercial), 5% chromafenozide suspending agent (autogamy).
Cotton boll pests index is investigated before medicine, in insect pest early period of origination dispenser, 3 days, 7 days, investigation in 15 days after dispenser Insect pest index also calculates preventive effect.Result of the test is as follows:
Table 22 Tefluthrin and active component B and the compounding preventing and treating cotton boll worm test of pesticide effectiveness thereof
As can be seen from Table 22, cotton boll worm, prevention effect can effectively be prevented and treated after Tefluthrin is compounding with active component B It is superior to the preventive effect of single dose, and the preventive effect phase is long.In test scope of medication, target crop is had no adverse effects.
After draw through tests different local throughout the country, Tefluthrin and methoxyfenozide, spiral shell worm ethyl ester, cyanogen fluorine To the beet armyworm on cereal crops, fruit tree, vegetable, flowers, fibre crops, legume crop, little after worm hydrazone, ring tebufenozide are compounding Diamond-back moth, Prodenia litura, cabbage butterfly, flea beetle, Bemisia tabaci, olethreutid, small heart-eating peach worm, scale insect, red spider, planthopper, rice The common worms such as leaf-roller, striped rice borer, bollworm, pink bollworm, bean-pod borer, aphid, tea lesser leafhopper, Pyrausta nubilalis (Hubern)., cutworm The preventive effect of evil, all more than 95%, is better than single dose preventive effect, and potentiation is obvious.

Claims (5)

1. the Pesticidal combination containing Tefluthrin, it is characterised in that: effective active composition is active components A and active component B, active components A and active component B weight ratio are 1 80 ~ 60 1, and described active components A is Tefluthrin, and active component B is Spiral shell worm ethyl ester, compositions makes wettable powder, water dispersible granules, suspending agent, suspension emulsion, microemulsion, aqueous emulsion, microcapsule suspension Agent, microcapsule suspension-suspendinagent agent.
Pesticidal combination containing Tefluthrin the most according to claim 1, it is characterised in that: active components A becomes with activity The weight ratio dividing B is 1 60 ~ 40 1.
Pesticidal combination containing Tefluthrin the most according to claim 2, it is characterised in that: Tefluthrin and spiral shell worm ethyl ester Weight ratio be 1 30 ~ 10 1.
Pesticidal combination containing Tefluthrin the most according to claim 3 is for preventing and treating the application of crop pests.
Application the most according to claim 4, it is characterised in that: described insect includes beet armyworm, diamondback moth, twill night Moth, cabbage butterfly, flea beetle, Bemisia tabaci, olethreutid, small heart-eating peach worm, scale insect, red spider, planthopper, rice leaf roller, two Change snout moth's larva, bollworm, pink bollworm, bean-pod borer, aphid, tea lesser leafhopper, Pyrausta nubilalis (Hubern)., cutworm.
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