CN101632384B - Insecticidal composition containing bifenthrin and triazophos - Google Patents
Insecticidal composition containing bifenthrin and triazophos Download PDFInfo
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- CN101632384B CN101632384B CN 200910023351 CN200910023351A CN101632384B CN 101632384 B CN101632384 B CN 101632384B CN 200910023351 CN200910023351 CN 200910023351 CN 200910023351 A CN200910023351 A CN 200910023351A CN 101632384 B CN101632384 B CN 101632384B
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- biphenthrin
- hostathion
- triazophos
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Abstract
The invention discloses an insecticidal composition containing bifenthrin and triazophos, comprising the following components by weight ratio of 1:3-1:30: A) a first active ingredient bifenthrin, and B) a second active ingredient triazophos. The composition has reasonable components, good insect-killing effect, low drug cost, high quick action, long effect endurance, resistance alleviation, a small quantity of preparation residues, no pollution to crops, good safety, and conformity to the security requirement of a pesticide preparation; and activity and insect-killing effect of the composition are not simple superposition of activities of the components but obvious enhanced effect. The composition respectively has the control effect of 91.06%-98.25% and 89.27%-98.99% after applying 7d to small aphids in a field and red spiders.
Description
Technical field
The present invention relates to a kind of Pesticidal combination, particularly a kind of contain Biphenthrin as the first active component and Hostathion as Pesticidal combination and the application thereof of the second active component, belong to technical field of compounded pesticide.
Background technology
Biphenthrin (english common name bifenthrin, chemical molecular formula C
23H
22ClF
3O
2) be a kind of pyrethroid Insecticidal and acaricidal agent.Have tag, stomach poison function, without interior suction, fumigation action, insecticidal spectrum is wide, effect rapidly.Not mobile in soil, safer to environment.Be applicable to prevent and treat on the crops such as wheat, cotton, fruit tree, vegetables, tealeaves the insects such as lepidopterous larvae, aleyrodid, aphid, leaf miner, leafhopper, tetranychid, evil mite.For worm, when mite is concurrent, province's medicine saves time.But in actual application, use separately the Biphenthrin single dose, insect easily produces resistance.
Hostathion (english common name triazophos, chemical molecular formula C
12H
16N
3O
3PS) be the organophosphorus insecticide of a kind of medium poison, desinsection wide spectrum, have strong tagging and stomach poison function, good disinsection effect, ovicidal action is obvious, and permeability is stronger, without systemic action.Be used for the various crop such as wheat, paddy rice and prevent and treat various pests.But in actual application, use separately the Hostathion single dose, insect easily produces resistance, and use cost rises increasingly.
In actual use, the unexpected discovery of inventor is mixed two active components to use and can improves its quick-acting, insecticidal spectrum is wide, can prevent and kill off aphid, two spotted spider mite, mythimna separata insect on the wheat crop, aphid on the cotton crop, evil mite, fleahopper silk worm, low age cotton bollworm, heart-eating worm, tortrix moth, aphid, two spotted spider mite and other polyphagous pest-insects such as beet webworm on the fruit tree crop, especially to wheat paddock aphid, two spotted spider mite, have and prevent and treat preferably lasting period and significant synergistic effect, can reduce the pharmacy application amount, save cost, the generation that slows down pest resistance.
Summary of the invention
One of purpose of the present invention is to provide a kind of good disinsection effect, and drug cost is low, the Pesticidal combination that contains Biphenthrin and Hostathion that is difficult for developing immunity to drugs.
Another object of the present invention is to provide the purposes of above-mentioned composition.
In order to overcome the defective of existing single component formulations, technical scheme of the present invention is to solve like this:
A kind of Pesticidal combination that contains Biphenthrin and Hostathion comprises:
A) the first active component Biphenthrin;
B) the second active component Hostathion;
The weight ratio of the first active component and the second active component is 1: 3-1: 30, be preferably 1: 5-1: 20.The cumulant of Biphenthrin and Hostathion is 5%～80% of described composition total weight, is preferably 10%～50%.
According to method known in those skilled in the art, the preparation formulation that the present composition can be prepared is wetting powder, suspended emulsion, missible oil, microemulsion, aqueous emulsion.
To wetting powder, spendable auxiliary agent has: in dispersant such as polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate one or more; In wetting agent such as alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; Filler such as ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
To suspended emulsion, spendable auxiliary agent has: among dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), the TERSPERSE 2425 (U.S. Huntsman Corporation produces, the alkyl naphthalene sulfonic acid salt) one or more; Emulsifier such as Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether), farming breast 2201, this dish-60# (common name: Span60), Tween-60 # (common name: the polyoxyethylene sorbitan stearate), the newborn 1601# of farming (common name: triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), triphen ethyl phenol polyoxyethylene groups ether phosphate, among the TERSPERSE 4894 (U.S. Huntsman Corporation product) one or more; Among wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, the TERSPERSE 2500 (U.S. Huntsman Corporation product) one or more; Solvent: one or more in dimethylbenzene, toluene, cyclohexanone, the solvent naphtha (S-150, S-180, S-200); In thickener such as xanthans, polyvinyl alcohol, bentonite, the aluminium-magnesium silicate one or more; In preservative such as formaldehyde, benzoic acid, the Sodium Benzoate one or more; Defoamer such as organic silicon defoamer; In antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as the sodium chloride one or more; In stabilizing agent such as triphenyl phosphite, epoxychloropropane, the aceticanhydride one or more; Water is deionized water.
For missible oil, those skilled in the art are familiar with the corresponding auxiliary agent of use and finish the present invention very much.Emulsifier such as calcium dodecyl benzene sulfonate (agricultural newborn 500#), Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether), the newborn 2201# of farming, this dish-60# (common name: Span60), Tween-60 # (common name: the polyoxyethylene sorbitan stearate), TX-10 (common name: octyl phenol polyoxy ethene (10) ether), the newborn 1601# of farming (common name: triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), the newborn 600# of farming, the farming newborn 400# in one or more; In solvent such as dimethylbenzene, toluene, solvent naphtha (S-150, S-180, S-200), toluene, methyl alcohol, dimethyl formamide, 1-METHYLPYRROLIDONE, cyclohexanone, acetone, the dimethyl sulfoxide (DMSO) one or more; In stabilizing agent such as triphenyl phosphite, the epoxychloropropane one or more.
To microemulsion, spendable auxiliary agent has: emulsifier such as calcium dodecyl benzene sulfonate (agricultural newborn 500#), Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether), the newborn 2201# of farming, this dish-60# (common name: Span60), Tween-60 # (common name: the polyoxyethylene sorbitan stearate), TX-10 (common name: octyl phenol polyoxy ethene (10) ether), the newborn 1601# of farming (common name: triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), the newborn 600# of farming, the farming newborn 400# in one or more; In assistant for emulsifying agent such as methyl alcohol, isopropyl alcohol, n-butanol, the ethanol one or more; Solvent such as cyclohexanone, 1-METHYLPYRROLIDONE, dimethylbenzene, toluene, solvent naphtha (trade mark: S-150, S-180, S-200) one or more; In stabilizing agent such as triphenyl phosphite, the epoxychloropropane one or more; Water is deionized water.
To aqueous emulsion, spendable auxiliary agent has: emulsifier such as Nonyl pheno (EO=10) ether phosphate, triphen ethyl-phenol polyoxyethylene ether phosphate, Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether), the newborn 2201# of farming, this dish-60# (common name: Span60), Tween-60 # (common name: the polyoxyethylene sorbitan stearate), TX-10 (common name: octyl phenol polyoxy ethene (10) ether), farming breast 1601 (common names: triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), the newborn 600# of farming, the farming newborn 400# in one or more; Solvent such as dimethylbenzene, toluene, cyclohexanone, solvent naphtha (trade mark: S-150, S-180, S-200) one or more; In stabilizing agent such as triphenyl phosphite, epoxychloropropane, the epoxidized soybean oil one or more; Antifreezing agent: in ethylene glycol, propane diols, glycerine, urea, inorganic salts such as the sodium chloride one or more; In thickener such as xanthans, polyvinyl alcohol, bentonite, the aluminium-magnesium silicate one or more; In preservative such as formaldehyde, benzoic acid, the Sodium Benzoate one or more, water is deionized water.
Component of the present invention is reasonable, good disinsection effect, drug cost is low, and its active and insecticidal effect is not the simple superposition of each composition activity, but significant synergistic effect is arranged, insecticidal spectrum is wide, and quick-acting is high, lasting effect is long, slows down the generation of resistance, the preparation less residue, pollution-free to crop, safety is good, meets the security requirement of pesticidal preparations.The present invention has respectively 91.06%～98.25% and 89.27%～98.99% control efficiency after to wheat paddock aphid, two spotted spider mite dispenser 7d.
Embodiment
Below in conjunction with embodiment content of the present invention is described further.
Example of formulations 1
Take by weighing 2% Biphenthrin, 30% Hostathion, 3%TERSPERSE 2425 (U.S. Huntsman Corporation product), 3% triphen ethyl-phenol polyoxyethylene ether phosphate, 2% agricultural newborn 2201#, 1%TERSPERSE 2500 (U.S. Huntsman Corporation product), 10% dimethylbenzene, 0.3% xanthans, 5% propane diols, 0.5% benzoic acid, 0.5% silicone defoaming agent (trade name: s-29 Nanjing "four news" (new ideas applied chemistry product company produces), 1% epoxychloropropane, deionized water adds to 100% weight portion.Hostathion in the above-mentioned raw materials, triphen ethyl-phenol polyoxyethylene ether phosphate, agricultural newborn 2201#, dimethylbenzene, epoxychloropropane mixed dissolution evenly after, in the mixing mutually of input by Biphenthrin, TERSPERSE 2425, TERSPERSE2500, xanthans, propane diols, benzoic acid, silicone defoaming agent, deionized water, high speed shear is disperseed 30min, with the Biphenthrin Hostathion suspended emulsion that makes 33% behind the sand mill sand milling.
The part by weight of Biphenthrin and Hostathion can be 1 in the present embodiment: 3-1: change between 30, both total weight items still are 32%, form new embodiment.
Example of formulations 2
Take by weighing 5% Biphenthrin, 15% Hostathion, 6% calcium lignosulfonate, 3% alkylnaphthalene sulfonate formaldehyde condensation products (dispersing agent NNO), 1% lauryl sodium sulfate, 30% white carbon, kaolin and fill up the weight portion to 100%.After above-mentioned raw materials mixes except Hostathion, with Hostathion spraying absorption, mix, ultra micro air-flow crushing, hybrid technique step are prepared into 20% Biphenthrin Hostathion wetting powder.
The part by weight of Biphenthrin and Hostathion can be 1 in the present embodiment: 3-1: change between 30, both total weight items still are 20%, form new embodiment.
Example of formulations 3
Take by weighing 1% Biphenthrin, 25% Hostathion, 6% calcium lignosulfonate, 4% alkylnaphthalene sulfonate formaldehyde condensation products (dispersing agent NNO), 1.5% lauryl sodium sulfate, 40% white carbon, diatomite and fill up the weight portion to 100%.After above-mentioned raw materials mixes except Hostathion, with Hostathion spraying absorption, mix, ultra micro air-flow crushing, hybrid technique step are prepared into 26% Biphenthrin Hostathion wetting powder.
The part by weight of Biphenthrin and Hostathion can be 1 in the present embodiment: 3-1: change between 30, both total weight items still are 26%, form new embodiment.
Example of formulations 4:
Take by weighing 2% Biphenthrin, 50% Hostathion, 4% agricultural newborn 500#, 2% agricultural newborn 600#, 3% agricultural newborn 2201#, 3% triphenyl phosphite, 5% dimethyl sulfoxide (DMSO), dimethylbenzene add to 100% weight portion.Above-mentioned raw materials makes 52% Biphenthrin triazophos emulsifiable solution after mix, stirring and dissolving is complete.
The part by weight of Biphenthrin and Hostathion can be 1 in the present embodiment: 3-1: change between 30, both total weight items still are 52%, form new embodiment.
Example of formulations 5:
Take by weighing 3% Biphenthrin, 10% Hostathion, 5% agricultural newborn 500#, 2% agricultural newborn 400#, 3% Nongru-700 #, 3% epoxychloropropane, 5%N-methyl pyrrolidone, 10% cyclohexanone, dimethylbenzene add to 100% weight portion.Above-mentioned raw materials makes 13% Biphenthrin triazophos emulsifiable solution after mix, stirring and dissolving is complete.
The part by weight of Biphenthrin and Hostathion can be 1 in the present embodiment: 3-1: change between 30, both total weight items still are 13%, form new embodiment.
Example of formulations 6:
Take by weighing 1% Biphenthrin, 9% Hostathion, 3% agricultural newborn 2201#, 2% Nonyl pheno (EO=10) ether phosphate, 2% Tween-60 #, 2% this dish-60#, 1% epoxychloropropane, 5% propane diols, 5% dimethylbenzene, 5% cyclohexanone, 0.2% xanthans, 0.5% benzoic acid, deionized water adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear emulsification makes 10% Biphenthrin aqueous emulsion of triazophos.
The part by weight of Biphenthrin and Hostathion can be 1 in the present embodiment: 3-1: change between 30, both total weight items still are 10%, form new embodiment.
Example of formulations 7:
Take by weighing 2% Biphenthrin, 28% Hostathion, 3% agricultural newborn 2201#, 2% Nonyl pheno (EO=10) ether phosphate, 2% triphen ethyl-phenol polyoxyethylene ether phosphate, 2% this dish-60#, 1% epoxychloropropane, 5% ethylene glycol, 5% dimethylbenzene, 10% cyclohexanone, 0.2% xanthans, 0.5% benzoic acid, deionized water adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear emulsification makes 30% Biphenthrin aqueous emulsion of triazophos.
The part by weight of Biphenthrin and Hostathion can be 1 in the present embodiment: 3-1: change between 30, both total weight items still are 30%, form new embodiment.
Example of formulations 8
Take by weighing 1% Biphenthrin, 9% Hostathion, 4%TX-10,5% Nongru-700 #, 6% agricultural newborn 500#, 4% agricultural newborn 1601#, 10% cyclohexanone, 10% dimethylbenzene, 5% n-butanol, 2% triphenyl phosphite, through dissolve complete and mix, deionized water adds to 100% weight portion, makes 10% Biphenthrin triazophos micro-emulsion after the stirring.
The part by weight of Biphenthrin and Hostathion can be 1 among the embodiment: 3-1: change between 30, both total weight items still are 10%, form new embodiment.
Example of formulations 9
Take by weighing 1% Biphenthrin, 19% Hostathion, 5% Nongru-700 #, 6% agricultural newborn 500#, 6% agricultural newborn 600#, 10% dimethylbenzene, 10% methyl alcohol, 2% triphenyl phosphite, through dissolve complete and mix, deionized water adds to 100% weight portion, makes 20% Biphenthrin triazophos micro-emulsion after the stirring.
The part by weight of Biphenthrin and Hostathion can be 1 among the embodiment: 3-1: change between 30, both total weight items still are 20%, form new embodiment.
Example of formulations 10
Take by weighing 3% Biphenthrin, 22% Hostathion, 5% agricultural newborn 600#, 6% agricultural newborn 500#, 6% agricultural newborn 400#, 10% cyclohexanone, 5% isopropyl alcohol, 2% triphenyl phosphite, through dissolve complete and mix, deionized water adds to 100% weight portion, makes 25% Biphenthrin triazophos micro-emulsion after the stirring.
The part by weight of Biphenthrin and Hostathion can be 1 among the embodiment: 3-1: change between 30, both total weight items still are 25%, form new embodiment.
Biological Examples 1: control wheat aphid field trial
The inventor carried out the field control effectiveness test of 10% Biphenthrin Hostathion (Biphenthrin 1%+ Hostathion 9%) microemulsion control wheat aphid in the Zhao County, Hebei province on April 13rd, 2008, verified that this medicament is to the control efficiency of wheat aphid, effective dose and to the safety of wheat.Trial crops is wheat, controlling object wheat aphid (Agrimonia pilosa Ledeb).Test medicine and dosage are 10% Biphenthrin triazophos micro-emulsion 20ml/ mu, 30ml/ mu, 40ml/ mu, 40% triazophos emulsifiable solution 50ml/ mu, and 2.5% Biphenthrin missible oil 40ml/ mu adopts conventional spray-on process.5 samplings are fixed in every residential quarter, and whole strain is investigated in every 10 strains, put down in writing all borer populations of living, and investigate residual borer population on each strain wheat respectively at 1d, 3d, 7d behind the medicine later on, calculate control efficiency.
In the formula: Pt
0Before-----treatment region medicine; Pt
1Behind-----treatment region medicine
CK
0Before the medicine of-----check plot; CK
1Behind the medicine of-----check plot
Table 1 10% Biphenthrin triazophos micro-emulsion control wheat aphid result of the test
Behind the medicine the 7th day the time each residential quarter preventive effect carry out biostatistics Epidemiological Analysis (seeing Table 1), analysis result shows: difference reaches extremely outstanding level between processing, and district's group difference is not remarkable.Significance of difference comparative result shows: consistent with the significance of difference on 0.01 level on 0.05 level, difference all reaches utmost point significance level between 10% Biphenthrin triazophos micro-emulsion 40ml/ mu and other each processing, 10% Biphenthrin triazophos micro-emulsion 30ml/ mu and contrast medicament 40% triazophos emulsifiable solution 50ml/ mu, difference all reached utmost point significance level between 2.5% Biphenthrin missible oil 40ml/ mu was processed, difference was not remarkable between 10% Biphenthrin triazophos micro-emulsion 30ml/ mu and contrast medicament 40% triazophos emulsifiable solution 50ml/ mu were processed, and difference reaches utmost point significance level between the processing of 2.5% Biphenthrin missible oil 40ml/ mu.
Field trial shows (seeing Table 1): 10% Biphenthrin triazophos micro-emulsion has more significant control efficiency to wheat aphid, its 30ml/ mu obviously is better than contrasting the control efficiency of medicament 40% triazophos emulsifiable solution 50ml/ mu, 2.5% Biphenthrin missible oil 40ml/ mu, after result of the test shows that Hostathion and Biphenthrin are mixed, control efficiency and lasting period to wheat aphid have obviously been improved, dosage and drug cost have been reduced, to wheat growth safety.
Biological Examples 2: control wheat aphid field trial
The inventor carried out the field control effectiveness test of 25% Biphenthrin triazophos micro-emulsion (Biphenthrin 3%+ Hostathion 22%) control wheat aphid in the Zhouzhi County, Shaanxi Province on April 20th, 2008, verified that this medicament is to the control efficiency of wheat aphid, effective dose and to the safety of wheat.Trial crops is wheat, controlling object wheat aphid (Agrimonia pilosa Ledeb).Test medicine and dosage are 25% Biphenthrin triazophos micro-emulsion 8ml/ mu, 12ml/ mu, 16ml/ mu, 40% triazophos emulsifiable solution 50ml/ mu, and 2.5% Biphenthrin missible oil 40ml/ mu adopts conventional spray-on process.5 samplings are fixed in every residential quarter, and whole strain is investigated in every 10 strains, put down in writing all borer populations of living, and investigate residual borer population on each strain wheat respectively at 1d, 3d, 7d behind the medicine later on, calculate control efficiency.
In the formula: Pt
0Before-----treatment region medicine; Pt
1Behind-----treatment region medicine
CK
0Before the medicine of-----check plot; CK
1Behind the medicine of-----check plot
Table 2 25% Biphenthrin triazophos micro-emulsion control wheat aphid result of the test
As shown in table 2, behind the medicine the 7th day the time each residential quarter preventive effect carry out the biostatistics Epidemiological Analysis, analysis result shows: difference reaches extremely outstanding level between processing, and district's group difference is not remarkable.Significance of difference comparative result shows: consistent with the significance of difference on 0.01 level on 0.05 level, difference all reaches utmost point significance level between 25% Biphenthrin triazophos micro-emulsion 16ml/ mu and other each processing, 25% Biphenthrin triazophos micro-emulsion 12ml/ mu and contrast medicament 40% triazophos emulsifiable solution 50ml/ mu, difference all reached utmost point significance level between 2.5% Biphenthrin missible oil 40ml/ mu was processed, difference was not remarkable between 25% Biphenthrin triazophos micro-emulsion 12ml/ mu and contrast medicament 40% triazophos emulsifiable solution 50ml/ mu were processed, and difference reaches utmost point significance level between the processing of 2.5% Biphenthrin missible oil 40ml/ mu.
Field trial shows (seeing Table 1): 25% Biphenthrin triazophos micro-emulsion has more significant control efficiency to wheat aphid, its 12ml/ mu obviously is better than contrasting the control efficiency of medicament 40% triazophos emulsifiable solution 50ml/ mu, 2.5% Biphenthrin missible oil 40ml/ mu, after result of the test shows that Hostathion and Biphenthrin are mixed, obviously improved the control efficiency to wheat aphid, greatly reduce dosage and drug cost, to wheat growth safety.
Biological Examples 3: control wheat red spider field trial
The inventor carried out the field control effectiveness test of 10% Biphenthrin aqueous emulsion of triazophos (Biphenthrin 1%+ Hostathion 9%) control wheat red spider in the Wugong County, Shaanxi Province on April 15th, 2008, verified that this medicament is to the control efficiency of wheat red spider, effective dose and to the safety of wheat.Trial crops is wheat, controlling object wheat red spider (cotton aphid; Melon aphid).Test medicine and dosage are 10% Biphenthrin aqueous emulsion of triazophos 20ml/ mu, 25ml/ mu, 30ml/ mu, 40% triazophos emulsifiable solution 40ml/ mu, and 2.5% Biphenthrin missible oil 40ml/ mu adopts conventional spray-on process.5 samplings are fixed in every residential quarter, and the two spotted spider mite on the whole strain blade is investigated in every 10 strains, put down in writing all borer populations of living, later on respectively at 1d, 3d, 7d behind the medicine, investigated the residual borer population on each strain wheat in 14 days, calculate control efficiency.
In the formula: Pt
0Before-----treatment region medicine; Pt
1Behind-----treatment region medicine
CK
0Before the medicine of-----check plot; CK
1Behind the medicine of-----check plot
Table 3 10% Biphenthrin aqueous emulsion of triazophos control wheat red spider result of the test
As shown in table 3, behind the medicine the 7th day the time each residential quarter preventive effect carry out biostatistics Epidemiological Analysis (seeing Table 3), analysis result shows: difference reaches extremely outstanding level between processing, and district's group difference is not remarkable.Significance of difference comparative result shows: consistent with the significance of difference on 0.01 level on 0.05 level, difference all reaches utmost point significance level between 10% Biphenthrin aqueous emulsion of triazophos 30ml/ mu and other each processing, 10% Biphenthrin aqueous emulsion of triazophos 25ml/ mu and contrast medicament 40% triazophos emulsifiable solution 40ml/ mu, difference all reached utmost point significance level between 2.5% Biphenthrin missible oil 40ml/ mu was processed, 10% Biphenthrin aqueous emulsion of triazophos 20ml/ mu and contrast medicament 40% triazophos emulsifiable solution 40ml/ mu, the difference of comparing in twos between 3 processing of 2.5% Biphenthrin missible oil 40ml/ mu is all not remarkable.
Field trial shows (seeing Table 3): 10% Biphenthrin aqueous emulsion of triazophos has more significant control efficiency to wheat red spider, its 25ml/ mu, 30ml/ mu obviously are better than contrasting the control efficiency of medicament 40% triazophos emulsifiable solution 40ml/ mu, 2.5% Biphenthrin missible oil 40ml/ mu, after result of the test shows that Hostathion and Biphenthrin are mixed, control efficiency and lasting period to wheat red spider have obviously been improved, greatly reduce dosage and drug cost, to wheat growth safety.
Biological Examples 4: control wheat red spider field trial
The inventor carried out the field control effectiveness test of 20% Biphenthrin triazophos micro-emulsion (1% Biphenthrin+19% Hostathion) control wheat red spider in the Weizhi County, Henan Province on April 9th, 2008, verified that this medicament is to the control efficiency of wheat red spider, effective dose and to the safety of wheat.Trial crops is wheat, controlling object wheat red spider (cotton aphid; Melon aphid).Test medicine and dosage are 20% Biphenthrin triazophos micro-emulsion 10ml/ mu, 15ml/ mu, 20ml/ mu, 40% triazophos emulsifiable solution 40ml/ mu, and 2.5% Biphenthrin missible oil 40ml/ mu adopts conventional spray-on process.5 samplings are fixed in every residential quarter, and the two spotted spider mite on the whole strain blade is investigated in every 10 strains, put down in writing all borer populations of living, later on respectively at 1d, 3d, 7d behind the medicine, investigated the residual borer population on each strain wheat in 14 days, calculate control efficiency.
In the formula: Pt
0Before-----treatment region medicine; Pt
1Behind-----treatment region medicine
CK
0Before the medicine of-----check plot; CK
1Behind the medicine of-----check plot
Table 4 20% Biphenthrin triazophos micro-emulsion control wheat red spider result of the test
As shown in table 4, behind the medicine the 7th day the time each residential quarter preventive effect carry out biostatistics Epidemiological Analysis (seeing Table 4), analysis result shows: difference reaches extremely outstanding level between processing, and district's group difference is not remarkable.Significance of difference comparative result shows: consistent with the significance of difference on 0.01 level on 0.05 level, difference all reaches utmost point significance level between 20% Biphenthrin triazophos micro-emulsion 20ml/ mu and other each processing, 20% Biphenthrin triazophos micro-emulsion 15ml/ mu and contrast medicament 40% triazophos emulsifiable solution 40ml/ mu, difference all reached utmost point significance level between 2.5% Biphenthrin missible oil 40ml/ mu was processed, 20% Biphenthrin triazophos micro-emulsion 10ml/ mu and contrast medicament 40% triazophos emulsifiable solution 40ml/ mu, the difference of comparing in twos between 3 processing of 2.5% Biphenthrin missible oil 40ml/ mu is all not remarkable.
Field trial shows (seeing Table 4): 20% Biphenthrin triazophos micro-emulsion has more significant control efficiency to wheat red spider, its 15ml/ mu, 20ml/ mu obviously is better than contrasting medicament 40% triazophos emulsifiable solution 40ml/ mu, the control efficiency of 2.5% Biphenthrin missible oil 40ml/ mu, after result of the test shows that Hostathion and Biphenthrin are mixed, Hostathion single dose ovicidal effect is remarkable, solved the not shortcoming of ovicidal of Biphenthrin single dose, control efficiency and lasting period to wheat red spider have obviously been improved, greatly reduce dosage and drug cost, to wheat growth safety.
Biological Examples 5: wheat aphid, two spotted spider mite indoor virulence test
In order to prevent and treat the insects such as wheat red spider in the agricultural production, aphid, the inventor has carried out mutual composite synergy research with compositions such as Hostathion, Biphenthrins.It is tested object that greenbug, wheat leaf pawl mite are adopted in test, and concrete grammar is:
1) the former medicine of wheat aphid (greenbug, formal name used at school Schizaphis graminum) test medicine Hostathion adopts the former medicine of Zhejiang Province Yifan Chemical Co., Ltd's production, the former medicine that the former medicine of Biphenthrin adopts Yangnong Chemical Co., Ltd., Jiangsu to produce.Former medicine is mixed with the test medicine that needs by technology department of Shanggezhilu Biosciences Co., Ltd., Shaanxi, test method is with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ".At first single dose and each Mixed Pharmacy are arranged 5 variable concentrations gradient: 0.625g/ug, 1.25g/ug, 2.5g/ug, 5g/ug, 10g/ug.The examination worm is the aphid of picking up from the field, select the larva of uniformity in the laboratory, put into blade-carrying culture dish, every ware 40 cephalonts, 4 culture dishes of every processing, repeat 3 times, spray under 50PSI pressure with the potter spray tower, spray a ware at every turn, every ware spraying liquid 3ml, then the culture dish that will process is put into the 12H/12H illumination box and is cultivated, and checks in 48 hours to calculate lethality by dead borer population.Blank spray equivalent clear water.Carry out statistical analysis with DPS data processor software, calculate the LC of each medicament
50Value is estimated reagent agent to the activity of examination worm with this.The co-toxicity coefficient of mixture (CTC value) calculates by following formula:
In the formula:
ATI---mixture actual measurement toxicity index;
S---standard insecticide LC
50, unit is every liter (mg/L) of milligram;
The LC of M---mixture
50, unit is every liter (mg/L) of milligram;
TTI＝TI
A×P
A+TI
B×P
B
In the formula:
The theoretical toxicity index of TTI---mixture;
TI
A---A medicament toxicity index;
P
A---the percentage composition of A medicament in mixture, unit are percentage (%);
TI
B---B medicament toxicity index;
P
B---the percentage composition of B medicament in mixture, unit are percentage (%);
In the formula:
CTC---co-toxicity coefficient;
ATI---mixture actual measurement toxicity index;
The theoretical toxicity index of TTI---mixture;
The co-toxicity coefficient of complex preparation (CTC) 〉=120 shows as synergistic effect; CTC≤80 show as antagonism; 80＜CTC＜120 show as summation action.
2) wheat red spider (wheat leaf pawl mite, formal name used at school Penthaleus major) the former medicine of test medicine Hostathion adopts the former medicine of Zhejiang Province Yifan Chemical Co., Ltd's production, the former medicine that the former medicine of Biphenthrin adopts Yangnong Chemical Co., Ltd., Jiangsu to produce is mixed with former medicine the test medicine that needs by technology department of Shanggezhilu Biosciences Co., Ltd., Shaanxi, and test method is with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ".At first single dose and each Mixed Pharmacy are arranged 5 variable concentrations gradient: 0.625g/ug, 1.25g/ug, 2.5g/ug, 5g/ug, 10g/ug.The examination worm is the one-tenth mite of picking up from the field, select the one-tenth mite of uniformity in the length of time in the laboratory, put into blade-carrying culture dish, every ware 40 cephalonts, 4 culture dishes of every processing, repeat 3 times, spray under 50PSI pressure with the potter spray tower, spray a ware at every turn, every ware spraying liquid 3ml, then the culture dish that will process is put into the 12H/12H illumination box and is cultivated, and checks in 48 hours to calculate lethality by dead borer population.Blank spray equivalent clear water.
3) measurement result of wheat aphid, two spotted spider mite see Table respectively 5, table 6.
Table 5 different disposal is to the toxicity test result of wheat aphid
| Process | Virulence regression equation | LC50 (mg/L) | Actual measurement toxicity index ATI | Theoretical toxicity index TTI | Co-toxicity coefficient (CTC) |
| Hostathion (A) | Y＝3.0607+1.5809X | 18.48 | 100 | - | - |
| Biphenthrin (B) | Y＝4.7620+1.6609X | 1.3909 | 1328.63 | - | - |
| A∶B＝3∶1 | Y＝4.0176+1.7527X | 3.6349 | 508.40 | 407.16 | 124.87 |
| A∶B＝9∶1 | Y＝3.9834+1.9618X | 3.2974 | 560.44 | 222.86 | 251.48 |
| A∶B＝15∶1 | Y＝3.8609+1.5735X | 5.2960 | 348.94 | 177.00 | 197.14 |
| A∶B＝20∶1 | Y＝3.8069+1.4965X | 6.2698 | 294.75 | 158.26 | 186.24 |
| A∶B＝30∶1 | Y＝3.7290+1.4965X | 6.8881 | 268.29 | 139.85 | 191.84 |
Table 6 different disposal is to the toxicity test result of wheat red spider
| Process | Virulence regression equation | LC50 (mg/L) | Actual measurement toxicity index ATI | Theoretical toxicity index TTI | Co-toxicity coefficient (CTC) |
| Hostathion (A) | Y＝3.7648+1.3467X | 8.2642 | 100 | - | - |
| Biphenthrin (B) | Y＝5.6593+2.2158X | 0.5041 | 1639.39 | - | - |
| A∶B＝3∶1 | Y＝5.0872+2.0858X | 0.9082 | 909.95 | 484.85 | 187.68 |
| A∶B＝9∶1 | Y＝4.9366+1.5315X | 1.0184 | 811.49 | 253.94 | 319.56 |
| A∶B＝15∶1 | Y＝4.3804+1.7346X | 2.2761 | 363.09 | 196.46 | 184.81 |
| A∶B＝20∶1 | Y＝4.3767+2.0396X | 2.0221 | 408.69 | 173.03 | 236.19 |
| A∶B＝30∶1 | Y＝4.3386+1.7517X | 2.3856 | 346.42 | 149.87 | 231.15 |
As can be seen from Table 5, Hostathion and Biphenthrin are composite, and wheat aphid is had very high synergistic effect, and 1: 3～30 o'clock co-toxicity coefficients of Biphenthrin and Hostathion proportioning can reach more than 120.
As can be seen from Table 6, Hostathion and Biphenthrin are composite, and wheat red spider is had very high synergistic effect, and 1: 3～30 o'clock co-toxicity coefficients of Biphenthrin and Hostathion proportioning can reach more than 180.
In sum, composition of the present invention is to adopt two kinds of active component compound schemes, and its activity and insecticidal effect are not the simple superposition of each composition activity, compare with existing unitary agent, except having significant insecticidal effect, and significant synergistic effect is arranged, quick-acting is high, lasting effect prolongs, and slows down the generation of resistance, the preparation less residue, pollution-free to crop, safety is good, meets the security requirement of pesticidal preparations.
Claims (5)
1. contain the application of Pesticidal combination in control wheat paddock aphid, wheat red spider insect of Biphenthrin and Hostathion, described Pesticidal combination comprises the first active component Biphenthrin, the second active component Hostathion, the weight ratio of the first active component and the second active component is 1:3-1:30.
2. according to claim 1 described application is characterized in that: the weight ratio of the first active component and the second active component is 1:5-1:20.
3. according to claim 1 and 2 described application is characterized in that: the cumulant of Biphenthrin and Hostathion is 5%～80% of described composition total weight.
4. according to claim 3 described application is characterized in that: the cumulant of Biphenthrin and Hostathion is 10%～50% of described composition total weight.
5. according to claim 1 described application is characterized in that: described composition is wetting powder, suspended emulsion, missible oil, microemulsion or aqueous emulsion agent.
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| CN1217145A (en) * | 1998-10-16 | 1999-05-26 | 成都华西农药厂 | Compounded farm chemical for killing mites |
| CN1498077A (en) * | 2001-03-21 | 2004-05-19 | �ȿ˻�ѧ�ɷ�����˾ | Pesticidal composition |
| CN1729782A (en) * | 2005-08-26 | 2006-02-08 | 刘东卫 | Pyrethroid and organic phosphorus composite synergic pesticide and its application |
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| CN1217145A (en) * | 1998-10-16 | 1999-05-26 | 成都华西农药厂 | Compounded farm chemical for killing mites |
| CN1498077A (en) * | 2001-03-21 | 2004-05-19 | �ȿ˻�ѧ�ɷ�����˾ | Pesticidal composition |
| CN1729782A (en) * | 2005-08-26 | 2006-02-08 | 刘东卫 | Pyrethroid and organic phosphorus composite synergic pesticide and its application |
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