CN101669492B - Synergic agricultural pesticide composition - Google Patents

Synergic agricultural pesticide composition Download PDF

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Publication number
CN101669492B
CN101669492B CN 200910206538 CN200910206538A CN101669492B CN 101669492 B CN101669492 B CN 101669492B CN 200910206538 CN200910206538 CN 200910206538 CN 200910206538 A CN200910206538 A CN 200910206538A CN 101669492 B CN101669492 B CN 101669492B
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composition
pyridine
piperazine worm
emamectin
benzoate
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CN101669492A (en
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仇晓锋
景辉
刘晓明
宁昭玉
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Shenzhen Noposion Agrochemicals Co Ltd
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Shenzhen Noposion Agrochemicals Co Ltd
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Abstract

A synergic agricultural pesticide composition is characterized by containing an active constituent A and an active constituent B. The active constituent A is Paichongding, the active constituent B is abamectin or emamectin benzoate, a weight ratio of the active constituent A to the active constituent B is 100:1-1:100 and preferably 30:1-10:1, and both active constituents take up 5%-60% of the composition by total weight. Formulation of the composition can be one or more of wettable powder, suspension, microemulsion, aqueous emulsion or water dispersible granules. The composition can be used for controlling plant hoppers or aphides harmful to a wide range of crops.

Description

A kind of synergic agricultural pesticide composition
Technical field
The present invention relates to a kind of agricultural insecticidal composite, particularly relate to a kind of Synergistic insecticidal composition that contains the pyridine of piperazine worm, can be used for preventing and treating pest, particularly plant hopper and aphid.
Background technology
The pyridine of piperazine worm is mainly used in the control homoptera pest for gram wins efficient, the wide spectrum of group's exploitation, the novel nicotinamide insecticide of low toxicity.Imidacloprid is one of insecticide variety of consumption maximum in the world at present; But because its a large amount of frequent uses; Caused significant resistance in the world; And the activity of piperazine worm pyridine antagonism suction juice class pest is significantly higher than Imidacloprid, so the pyridine of piperazine worm is to replace one of desirable kind of Imidacloprid control plant hopper and aphid.Piperazine worm pyridine chemical name is: 1-((6-chloropyridine-3-yl) methyl)-5-propoxyl group-7-methyl-8-nitro-1,2,3,5,6,7-six hydrogen imidazoles [1,2-a] pyridine.Its structural formula is:
The application report that 10% piperazine worm pyridine suspending agent is only arranged at present.
AVM (Avermectin) is a kind of macrolide disaccharide compounds, insect and mite class is had tag with stomach poison function and faint fumigation action is arranged, and blade is had very strong osmosis, can kill subepidermal insect, and the longevity of residure is long.What its mechanism of action was different with general insecticide is that it disturbs neurophysiology movable; Stimulate and discharge the r-reanal; And the r-reanal has inhibitory action to arthropodan nerve conduction; The mite class becomes, if mite and insect and larva with paralysis symptom promptly appears after medicament contacts, inertia is not got food, death after 2-4 days.Deficiency is no systemic action, to the worm's ovum non-activity
Emamectin-benzoate (Emamectin benzoate) is a kind of efficient semisynthetic antibiotics insecticide that begins to synthesize from fermented product AVM B1, it have super-high-efficient, low toxicity,
Noresidue, the nuisanceless characteristics that wait biopesticide are with avermitilis strain
Plain at first insecticidal activity has improved 1~3 one magnitude; Larva activity to lepidopterous insects is high, and the double again action of contace poison of existing stomach poison function (has good effect at low-down dosage under 0.084~2g/ha); And in the process of pest control, beneficial insect is not injured; Help integrated control, enlarged insecticidal spectrum in addition, reduced toxicity people and animals to insect.
The registration of agriculture chemical compoundings such as AVM and emamectin-benzoate and organic phosphates, pyrethroid, carbamates, anabasine is used more.The composition of piperazine worm pyridine at present and AVM or emamectin-benzoate does not appear in the newspapers as yet.
Summary of the invention
It is reasonable to the purpose of this invention is to provide a kind of mixed ratio, and control efficiency is good, the synergetic pesticide composition that drug cost is low.
Another object of the present invention is to provide this composition pesticide to be used to prevent and treat the purposes of plant hopper and aphid.
Technical scheme of the present invention is following: a kind of synergic agricultural pesticide composition; It is characterized in that containing active components A and active component B; Active components A is meant the pyridine of piperazine worm; Active component B is meant AVM or emamectin-benzoate, and the weight ratio of active component is 100: 1~1: 10, and preferred weight ratio is 30: 1~10: 1.Composition pesticide of the present invention can be mixed with in suspending agent, water dispersible granules, wetting powder, microemulsion and the aqueous emulsion one or more according to method well-known in the art; The gross weight percentage composition of active ingredient is 5%~60% in the preparation, and all the other are to allow in the agricultural chemicals to use and the acceptable auxiliary element.
Preparation prepares in a known manner, normally active component is fully mixed with surfactant, solvent or solid carrier or grinding, granulation.The auxiliary agent that uses in the composition of the present invention comprises that solvent, cosolvent, dispersant, emulsifier, wetting agent, stabilizing agent, antifreezing agent, thickener, antifoaming agent, filler etc. and other are of value to the known substance that active ingredient is stablized and drug effect is brought into play in preparation; All be the various compositions of using or allow use in the pesticidal preparations always; Do not have special qualification, concrete composition and consumption require to confirm through test according to prescription.
Component of the present invention is reasonable, good disinsection effect, and drug cost is low; Active components A and B have significant synergies; Compared with prior art, beneficial effect of the present invention is: compare said composition antagonism insect with single agent 1.; Like plant hopper and aphid obvious synergistic effect is arranged, improved control efficiency; 2. two kinds of active ingredients are mixed, and have reduced dosage, thereby have reduced cost and alleviated the pollution to environment; 3. composition is become to be grouped into by two kinds of mechanism of action different effective, helps overcoming and delaying the pesticide resistance of insect; 4. possess quick-acting and long-acting two big characteristics simultaneously.
Embodiment
Below in conjunction with instance the present invention is described further.But the present invention only limits to these examples absolutely not.Percentage or proportioning is weight percentage or weight ratio in all prescriptions.The processing technology of the various preparations of the present composition and equipment are that the public is known.
1, the preparation of aqueous emulsion
Active component is used dissolution with solvents, add emulsifier for mixing, will stablize antifreezing agent and water mixing homogeneous as water to transparent as oil phase.Under 3000~6000 rev/mins of shear conditions, oil phase slowly is added to aqueous phase stirred 20~50 minutes, form the aqueous emulsion of favorable dispersibility.
FORMULATION EXAMPLE 1:10% piperazine worm pyridine abamectin aqueous emulsion
Piperazine worm pyridine (active component) 1%
AVM (active component) 9%
Trimethylbenzene (solvent) 15%
Sodium alkyl benzene sulfonate (emulsifier) 8%
Glycerine (stablizing antifreezing agent) 5%
Water complements to 100%
FORMULATION EXAMPLE 2:10% piperazine worm pyridine abamectin aqueous emulsion
Piperazine worm pyridine (active component) 5%
AVM (active component) 5%
Xylol (solvent) 10%
Sodium alkyl benzene sulfonate (emulsifier) 5%
Glycerine (stablizing antifreezing agent) 4%
Water complements to 100%
FORMULATION EXAMPLE 3:10% piperazine worm pyridine emamectin-benzoate aqueous emulsion
Piperazine worm pyridine (active component) 9.9%
Emamectin-benzoate (active component) 0.1%
Toluene (solvent) 15%
Castor oil polyoxyethylene ether (emulsifier) 5%
Urea (antifreezing agent) 1%
Water complements to 100%
2, the preparation of microemulsion
Active component with the dissolving of solvent, cosolvent, is added emulsifier for mixing to transparent in oil phase, will stablize antifreezing agent and water mixing homogeneous as water.Oil phase slowly is added drop-wise to aqueous phase, stirs the microemulsion that formed favorable dispersibility in 30~60 minutes.
FORMULATION EXAMPLE 4:22% piperazine worm pyridine avermectin micro-emulsion
Piperazine worm pyridine (active component) 20%
AVM (active component) 2%
Acetone (solvent) 15%
DMF (cosolvent) 5%
Phenethyl phenol polyethenoxy ether (emulsifier) 10%
The newborn 500# of farming (emulsifier) 5%
Ethylene glycol (stablizing antifreezing agent) 2%
Water complements to 100%
FORMULATION EXAMPLE 5:15.5% piperazine worm pyridine emamectin benzoate microemulsion
Piperazine worm pyridine (active component) 15%
Emamectin-benzoate (active component) 0.5%
Acetone (solvent) 15%
Pyrrolidones (cosolvent) 8%
APES formaldehyde condensation products (emulsifier) 10%
The newborn 500# of farming (emulsifier) 5%
Ethylene glycol (stablizing antifreezing agent) 1%
Water complements to 100%
3, the preparation of suspending agent
Active component, dispersant, wetting agent, thickener and the water mixed by prescription successively is even,, sand mill obtains suspending agent after grinding.
FORMULATION EXAMPLE 6:21% piperazine worm pyridine AVM suspending agent
Piperazine worm pyridine (active component) 20%
AVM (active component) 1%
Sodium alkyl benzene sulfonate (dispersant) 8%
APES (wetting agent) 4%
Xanthans (thickener) 0.3%
Water complements to 100%
FORMULATION EXAMPLE 7:15.5% piperazine worm pyridine AVM suspending agent
Piperazine worm pyridine (active component) 15%
AVM (active component) 0.5%
Sodium alkyl benzene sulfonate (dispersant) 8%
APES (wetting agent) 5%
Magnesiumaluminumsilicate (thickener) 0.8%
Water complements to 100%
FORMULATION EXAMPLE 8:11% piperazine worm pyridine emamectin benzoate suspending agent
Piperazine worm pyridine (active component) 10%
Emamectin-benzoate (active component) 1%
Sorbitan fatty acid ester APEO (dispersant) 6%
APES (wetting agent) 5%
Sodium carboxymethylcellulose (thickener) 0.2%
Water complements to 100
4, the preparation of wetting powder
Active component, dispersant, wetting agent and filler etc. are fully mixed in the ratio of prescription, below ultrafine crusher is crushed to 20 μ m, obtain wetting powder.
FORMULATION EXAMPLE 9:41% piperazine worm pyridine AVM wetting powder
Piperazine worm pyridine (active ingredient) 40%
AVM (active ingredient) 1%
Sodium lignin sulfonate (dispersant) 5%
Lauryl sodium sulfate (wetting agent) 2%
Kaolin (filler) complements to 100%.
FORMULATION EXAMPLE 10:8% piperazine worm pyridine emamectin-benzoate wetting powder
Piperazine worm pyridine (active ingredient) 4%
Emamectin-benzoate (active ingredient) 4%
NPE formaldehyde condensation products sodium sulfonate (dispersant) 5%
Lauryl sodium sulfate (wetting agent) 2%
Bentonite (filler) complements to 100%.
5, the preparation of water dispersible granules
Successively add in blender in the ratio of filling a prescription active component, dispersant, wetting agent, binding agent, disintegrant and filler; Mix; Become the following WP of particle diameter 10 μ m through comminution by gas stream; Add 5%~15% water extrusion again and make material, after dry screened, obtain water-dispersible granules.
FORMULATION EXAMPLE 11:50.5% piperazine worm pyridine AVM water dispersible granules
Piperazine worm pyridine (active component) 50%
AVM (active component) 0.5%
Sodium lignin sulfonate (dispersant) 3%
Rope uncle SOPA (dispersant) 3%
Sldium lauryl sulfate (wetting agent) 2%
Sodium silicate (binding agent) 1.5%
Calcium chloride (disintegrant) 5%
Precipitated calcium carbonate (filler) complements to 100
FORMULATION EXAMPLE 12:5.5% piperazine worm pyridine emamectin-benzoate water dispersible granules
Piperazine worm pyridine (active component) 0.5%
Emamectin-benzoate (active component) 5%
Polyoxyethylene polyoxypropylene block copolymer (dispersant) 5%
Draw back powder (dispersant) 3%
Sldium lauryl sulfate (wetting agent) 2%
Carboxymethyl cellulose (binding agent) 0.5%
Ammonium sulfate (disintegrant) 5%
Precipitated calcium carbonate (filler) complements to 100
Biologicall test and test of pesticide effectiveness example:
1, pyridine of piperazine worm and abamectin compounded Toxicity Determination to brown planthopper
The former medicine that the former medicine of test medicine piperazine worm pyridine adopts Kesheng Group Co., Ltd., Jiangsu Prov. to produce, the former medicine that the former medicine of AVM adopts Hebei Weiyuan Biochemical Co., Ltd. to produce.After test method was mixed with mother liquor with reference to " the agricultural industry criteria NY/T 1154.11-2008 of the People's Republic of China (PRC) " with former medicinal organic solvent acetone, the soil temperature with 0.1%-80 aqueous solution was by 5 series mass concentration of method configuration of geometric ratio.The paddy rice brown planthopper nymph in 3 age that the examination worm is an indoor feeding, physiological status is consistent.Choose the healthy and strong consistent paddy rice seedling in tillering stage of laboratory cultures, grubbed out, clean; Be cut into the long band of 10cm root rice stem, it is anhydrous to the surface to dry in the air in the place, cool place, and the rice stem is flooded 30s in the medicament that configures; Taking-up is dried, and encases root with absorbent cotton and preserves moisture, the outsourcing preservative film; Place test tube, every test tube 3 strains.4 repetitions of every processing, and establish the processing that does not contain medicament and do blank.To try worm with pest sucking device and move in the test tube, 15 in every test tube, the mouth of pipe covers with gauze.Examination worm after the processing places temperature (25 ± 1) ℃, relative moisture 60%~80%, and periodicity of illumination is to raise under L: D=(16: 8) the h condition and observe.Carry out statistical analysis with the DPS data processing software, calculate the LC50 of each medicament, estimate with this and supply the activity of reagent agent the examination worm.Calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.
When CTC≤80, then the composition performance is for antagonism, and when 80<CTC<120, then the composition performance is for summation action, and when CTC>=120, then the composition performance is synergistic effect.
Actual measurement toxicity index (ATI)=(standard medicament LC 50/ confession reagent agent LC 50) * 100
The percentage composition of B in percentage composition+B medicament toxicity index * mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (the ATI)/theoretical toxicity index (TTI) of mixture] * 100
Mensuration result to the paddy rice brown planthopper: see table 1
Worm pyridine of table 1 piperazine and abamectin compounded joint toxicity measuring to the paddy rice brown planthopper
Supply reagent agent (active ingredient weight ratio) LC 50 (mg/l) ATI TTI Co-toxicity coefficient CTC
The pyridine of piperazine worm 2.67 100.00
AVM 4.59 58.17
Piperazine worm pyridine: AVM (100: 1) 2.22 120.27 99.59 120.77
Piperazine worm pyridine: AVM (50: 1) 2.01 132.84 99.18 133.93
Piperazine worm pyridine: AVM (30: 1) 1.79 149.16 98.65 151.20
Piperazine worm pyridine: AVM (20: 1) 1.32 202.27 98.01 206.38
Piperazine worm pyridine: AVM (10: 1) 2.1 157.99 96.20 164.23
Piperazine worm pyridine: AVM (1: 1) 3.75 113.62 79.08 143.66
Piperazine worm pyridine: AVM (1: 5) 8.19 89.30 65.14 137.08
Piperazine worm pyridine: AVM (1: 10) 11.87 68.99 61.97 111.33
Find out piperazine worm pyridine and abamectin compounded the paddy rice brown planthopper is had very high synergistic effect from table 1.Pyridine of piperazine worm and AVM proportioning are 30: 1, and 20: 1, co-toxicity coefficient was all more than 150 in 10: 1 o'clock.
2, the composite toxicity test of pyridine of piperazine worm and emamectin-benzoate to wheat aphid
The former medicine of test medicine piperazine worm pyridine derives from Kesheng Group Co., Ltd., Jiangsu Prov., and the former medicine of emamectin-benzoate derives from Hebei Weiyuan Biochemical Co., Ltd..Test method is carried out with reference to " the agricultural industry criteria NY/T 1154.9-2008 of the People's Republic of China (PRC) " spray-on process.After former medicinal organic solvent acetone was mixed with mother liquor, the soil temperature with 0.1%-80 aqueous solution was by 5 series mass concentration of method configuration of geometric ratio.The wheat aphid nymph in 3 age that the examination worm is an indoor feeding, physiological status is consistent.Choose 10 examination worms with writing brush and place culture dish, place Potter spray tower domain quantitatively to spray in culture dish again, spouting liquid is 1ml; Take out the examination worm behind the soup sedimentation 1min; To try worm with little writing brush and move in the test tube, 10 in every test tube, the mouth of pipe covers with gauze.4 repetitions of every processing, and establish the processing that does not contain medicament and do blank.Examination worm after the processing places temperature (25 ± 1) ℃, relative moisture 60%~80%, and periodicity of illumination is to raise under L: D=(16: 8) the h condition and observe.Method by biologicall test and test of pesticide effectiveness example 1 is calculated the toxicity index of each medicament and the co-toxicity coefficient (CTC value) of mixture.
The composite joint toxicity measuring of worm pyridine of table 2 piperazine and emamectin-benzoate to wheat aphid
Supply reagent agent (active ingredient weight ratio) LC 50 (mg/l) ATI TTI Co-toxicity coefficient CTC
The pyridine of piperazine worm 4.03 100.00
Emamectin-benzoate 2.18 184.86
Piperazine worm pyridine: emamectin-benzoate (100: 1) 3.21 125.55 100.84 124.50
Piperazine worm pyridine: emamectin-benzoate (50: 1) 3.01 133.89 101.66 131.70
Piperazine worm pyridine: emamectin-benzoate (30: 1) 2.79 144.44 102.74 140.60
Piperazine worm pyridine: emamectin-benzoate (20: 1) 1.22 330.33 104.04 317.50
Piperazine worm pyridine: emamectin-benzoate (10: 1) 1.62 248.77 107.71 230.95
Piperazine worm pyridine: emamectin-benzoate (1: 1) 1.85 217.84 142.43 152.94
Piperazine worm pyridine: emamectin-benzoate (1: 5) 1.92 209.90 170.72 122.95
Piperazine worm pyridine: emamectin-benzoate (1: 10) 2.01 200.50 177.15 113.18
Find out that from table 2 pyridine of piperazine worm and emamectin-benzoate are composite to have very high synergistic effect to wheat aphid.Pyridine of piperazine worm and emamectin-benzoate proportioning are 20: 1, and 10: 1, co-toxicity coefficient all reached more than 150 in 1: 1 o'clock.
3, the various proportionings of pyridine of piperazine worm and AVM are to the field efficiency test of paddy rice brown planthopper.
Trial crops is a paddy rice, and controlling object is the paddy rice brown planthopper.Embodiment 1,2,4,6,7,9,11 7 kind of medicament respectively to the processing of spraying after the even dilution of water, are established medicament contrast and the contrast of blank clear water.District's group arrangement at random between processing is handled three times for every kind and is repeated.1 day, 3 days and 7 days investigation number of pest behind medicine are calculated lethality and control efficiency respectively, and result of the test is as shown in table 3.
Table 3 different disposal is to the field test results (1d, 3d and 7d behind the medicine) of paddy rice brown planthopper
Annotate: data are 3 repetition mean values in the table.
Can find out that from result of the test (seeing table 3) what the 1st day preventive effect was best behind the medicine is formulation examples 4 (22% piperazine worm pyridine avermectin micro-emulsion, 12ml/ mu), preventive effect is 89.04%.What the 3rd day preventive effect was best behind the medicine is formulation examples 6 (21% piperazine worm pyridine AVM suspending agent, 15ml/ mu), and preventive effect is 97.19%.The 7th day formulation examples 4,6,7,9 preventive effect all are higher than the preventive effect of 10% piperazine worm pyridine suspending agent and the single agent of 1.8% AVM EC behind the medicine, show that two kinds of composite reagent synergy are obvious.
4, the various proportionings of pyridine of piperazine worm and emamectin-benzoate are to the field efficiency test of wheat aphid.
Test controlling object wheat aphid.With embodiment 3,5,8,10,12 totally five kinds of medicaments establish medicament contrast and blank clear water and contrast respectively to water processings of evenly spraying after the dilution.District's group arrangement at random between processing is handled three times for every kind and is repeated.1 day, 3 days and 7 days investigation number of pest behind medicine are calculated lethality and control efficiency respectively, and result of the test is as shown in table 3.
Table 4 different disposal is to the field test results (1d, 3d and 7d behind the medicine) of wheat aphid
Annotate: data are 3 repetition mean values in the table.
Can find out that from result of the test (seeing table 4) what the 1st, 3,7 day preventive effect was best behind the medicine is formulation examples 8 (11% piperazine worm pyridine emamectin benzoate suspending agent, 12ml/ mu), preventive effect is respectively to be 90.76%, 97.27%, 98.92%.The 7th day formulation examples 10 (8% piperazine worm pyridine emamectin-benzoate wetting powder behind the medicine; 10g/ mu) and embodiment 8 (11% piperazine worm pyridine emamectin benzoate suspending agent; 12ml/ mu) preventive effect all reaches more than 96%; Be higher than the preventive effect of the single agent of 10% piperazine worm pyridine suspending agent and 1.0% emamectin-benzoate EC far away, show that two kinds of composite reagent synergy are obvious.

Claims (4)

1. synergic agricultural pesticide composition; It is characterized in that containing active components A and B; Active components A is meant the pyridine of piperazine worm; Active component B is meant AVM or emamectin-benzoate, and the weight ratio of active components A and B is 100: 1~1: 10, and the gross weight percentage composition of two kinds of active components in composition is 5%~60%.
2. Pesticidal combination according to claim 1 is characterized in that: the weight ratio of active components A and B is 30: 1~10: 1.
3. according to claim 1 and 2 each described Pesticidal combinations, it is characterized in that: the formulation of said composition pesticide is a kind of in suspending agent, water dispersible granules, wetting powder, microemulsion and the aqueous emulsion.
4. claim 1 and 2 each described composition pesticides purposes in control plant hopper and aphid.
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CN101861875B (en) * 2010-06-29 2013-06-19 江苏克胜集团股份有限公司 Synergistic pesticide compound containing mepiquat chloride and organophosphorus pesticide
CN102042966B (en) * 2010-11-12 2012-06-20 哈尔滨工业大学 Quick analysis method for reaction process of emamectin benzoate
CN102599182B (en) * 2012-02-28 2014-04-09 深圳诺普信农化股份有限公司 Insecticidal composition and application thereof
CN103636659A (en) * 2013-11-21 2014-03-19 张晓强 Pesticide composition containing 1-(6-chloro-3-methylpyridyl)-8-nitro-7-methyl-1,2,3,4,5,6,7-hexahydroimidazo[1,2-a]pyridine and dinotefuran
CN103766358B (en) * 2013-12-28 2016-04-20 上海艳紫化工科技有限公司 The agricultural chemicals suspension agent of pest control
CN107821409A (en) * 2017-10-25 2018-03-23 江苏克胜集团股份有限公司 A kind of Pesticidal combination containing paichongding and antibiotic insecticide
CN107873714A (en) * 2017-10-25 2018-04-06 江苏克胜作物科技有限公司 A kind of processing method of paichongding nanometer micro-emulsion pesticide

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