CN101669493A - Synergistic pesticide combination - Google Patents
Synergistic pesticide combination Download PDFInfo
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- CN101669493A CN101669493A CN200910206539A CN200910206539A CN101669493A CN 101669493 A CN101669493 A CN 101669493A CN 200910206539 A CN200910206539 A CN 200910206539A CN 200910206539 A CN200910206539 A CN 200910206539A CN 101669493 A CN101669493 A CN 101669493A
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- fipronil bisamide
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Abstract
A synergistic pesticide combination is characterized by comprising the active ingredients including flubendiamide (A) and abamectin or emamectin benzoate (B) in a weight ratio of 100:1-1:10, preferably 30:1-10:1. The total weight percent of the two active ingredients in the combination is 5-60%. The dosage form of the combination is preferably one or more of wettable powders, suspending agent, micro-emulsion, aqueous emulsion or water dispersible granules. The combination of the invention can be used for controlling cnaphalocrocis medinalis and spodoptera exigua in agriculture.
Description
Technical field
The present invention relates to a kind of synergetic pesticide composition, particularly relate to a kind of insecticides that contains fipronil bisamide, its preparation can be used for preventing and treating pest, particularly rice leaf roller and beet armyworm.
Background technology
Rice leaf roller (Cnaphalocrocis medinalis) is a kind of migrating property rice grub, and the paddy rice of causing harm is caused Bai Ye, and it is sudden strong, and it is wide to cause harm, and causes rice yield and quality seriously to descend, and is one of paddy rice primary pest.For a long time, the control of rice leaf roller mainly relies on insecticide varieties such as acephatemet, desinsection list, dimehypo, Hostathion, Avermectin, and wherein acephatemet belongs to high-toxic pesticide and forbids; Desinsection list and dimehypo are to the anti-heterodyne of above rice leaf roller in 2 ages, and because of long-term use, rice leaf roller has produced obvious pesticide resistance, and control efficiency significantly descends; Medicaments such as Hostathion are lower to the activity of rice leaf roller; Because the medication number of times of Avermectin and the increase of dosage cause rice leaf roller that the resistance of Avermectin is sharply increased, the drug cost multiplication.
Beet armyworm (Spodoptera exigua) host range is wide, and larva generation overlap and hiding by day and coming out at night is serious to traditional organic phosphates, chrysanthemum ester class, carbamate insecticide pesticide resistance, has brought very big difficulty to preventing and controlling.
Fipronil bisamide (English common name Flubendiamide) belongs to novel phthalic amide insecticides, activates calcium release channel in blue Buddhist nun's alkali recipient cell, the property out of control release that causes storing calcium ion.It is the compound that acts on blue Buddhist nun's alkali (Ryanodine) acceptor of insect cell at present few in number.Lepidoptera pest there is the wide spectrum preventive effect, does not have cross resistance, be suitable for very much the control that existing insecticide produces the insect of resistance with existing insecticide.Very low to honeybee toxicity, also very low to carp toxicity.Under general consumption to there being beneficial insect not have activity.Weak point is the lepidoptera imago preventive effect limited, does not have ovicidal action.
Avermectin (Abamectin) is the natural products that separates from edaphon, insect and mite class is had tag and 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 the neurophysiology activity, stimulate to discharge the r-aminobutyric acid, and the r-aminobutyric acid has inhibitory action to arthropodan nerve conduction, mite class and insect larvae with paralysis symptom promptly appears after medicament contacts, inertia is not got food, and is dead after 2-4 days.Because of not causing that insect dewaters rapidly, so its lethal effect is slower.
Avermectin does not have systemic action, not killing egg.
Emamectin-benzoate (Emamectin benzoate), it is a kind of efficient semisynthetic antibiotics insecticide that begins to synthesize from fermented product Avermectin B1, it has super-high-efficient, low toxicity, noresidue, the nuisanceless characteristics that wait biopesticide, with Avermectin at first insecticidal activity improved 1～3 order of magnitude, larva activity to lepidopterous insects is high, the double again action of contace poison of existing stomach poison function, (has good effect under 0.084～2g/ha) at low-down dosage, 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 composition of fipronil bisamide and Avermectin or emamectin-benzoate does not appear in the newspapers as yet at present.
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 rice leaf roller and beet armyworm.
Technical scheme of the present invention is as follows: a kind of synergetic pesticide composition, it is characterized in that containing active components A and active component B, active components A is meant fipronil bisamide, active component B is meant Avermectin or emamectin-benzoate, the weight ratio of active components A and B 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, defoamer, 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, be not particularly limited, concrete composition and consumption require to determine by test according to prescription.
Component of the present invention is reasonable, good disinsection effect, 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., have obvious synergistic effect as rice leaf roller and beet armyworm, improved control efficiency; 2. two kinds of active ingredients are mixed, and have reduced dosage, thereby have reduced cost and the pollution that has alleviated environment; 3. composition is made up of two kinds of different active ingredients of mechanism of action, helps overcoming and delaying the pesticide resistance of insect; 4. possess quick-acting and long-acting two big characteristics simultaneously.
Embodiment
The invention will be further described below in conjunction with example.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
With the active component dissolution with solvents, add emulsifier for mixing to transparent as oil phase, will stablize antifreezing agent and water mixing homogeneous as water.Change under the shear conditions at 3000～6000 rev/mins, oil phase slowly is added to aqueous phase stirred 20～50 minutes, form the aqueous emulsion of favorable dispersibility.
Example of formulations 1:10% fipronil bisamide abamectin aqueous emulsion
Fipronil bisamide (active component) 1%
Avermectin (active component) 9%
Trimethylbenzene (solvent) 15%
Sodium alkyl benzene sulfonate (emulsifier) 8%
Glycerine (stablizing antifreezing agent) 5%
Water complements to 100%
Example of formulations 2:10% fipronil bisamide abamectin aqueous emulsion
Fipronil bisamide (active component) 5%
Avermectin (active component) 5%
Dimethylbenzene (solvent) 10%
Sodium alkyl benzene sulfonate (emulsifier) 5%
Glycerine (stablizing antifreezing agent) 4%
Water complements to 100%
Example of formulations 3:10% fipronil bisamide emamectin-benzoate aqueous emulsion
Fipronil bisamide (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.
Example of formulations 4:22% fipronil bisamide avermectin micro-emulsion
Fipronil bisamide (active component) 20%
Avermectin (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%
Example of formulations 5:15.5% fipronil bisamide emamectin benzoate microemulsion
Fipronil bisamide (active component) 15%
Emamectin-benzoate (active component) 0.5%
Acetone (solvent) 15%
Pyrrolidones (cosolvent) 8%
Alkylphenol polyoxyethylene 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 water are mixed in the ratio of prescription successively, after sand mill grinds, obtain suspending agent.
Example of formulations 6:21% fipronil bisamide Avermectin suspending agent
Fipronil bisamide (active component) 20%
Avermectin (active component) 1%
Sodium alkyl benzene sulfonate (dispersant) 8%
Alkylphenol polyoxyethylene (wetting agent) 4%
Xanthans (thickener) 0.3%
Water complements to 100%
Example of formulations 7:15.5% fipronil bisamide Avermectin suspending agent
Fipronil bisamide (active component) 15%
Avermectin (active component) 0.5%
Sodium alkyl benzene sulfonate (dispersant) 8%
Alkylphenol polyoxyethylene (wetting agent) 5%
Xanthans (thickener) 0.3%
Water complements to 100%
Example of formulations 8:11% fipronil bisamide emamectin benzoate suspending agent
Fipronil bisamide (active component) 10%
Emamectin-benzoate (active component) 1%
Sorbitan fatty acid ester APEO (dispersant) 6%
Alkylphenol polyoxyethylene (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.
Example of formulations 9:41% fipronil bisamide Avermectin wetting powder
Fipronil bisamide (active ingredient) 40%
Avermectin (active ingredient) 1%
Sodium lignin sulfonate (dispersant) 5%
Lauryl sodium sulfate (wetting agent) 2%
Kaolin (filler) complements to 100%.
Example of formulations 10:8% fipronil bisamide emamectin-benzoate wetting powder
Fipronil bisamide (active ingredient) 4%
Emamectin-benzoate (active ingredient) 4%
Polyoxyethylene nonylphenol ether 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 Wettable Powder of particle diameter 10 μ m through comminution by gas stream, add 5%～15% water again and mix extruding and make material, obtain fipronil bisamide Avermectin water-dispersible granules after the drying screening.
Example of formulations 11:50.5% fipronil bisamide Avermectin water dispersible granules
Fipronil bisamide (active component) 50%
Avermectin (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%
Example of formulations 12:5.5% fipronil bisamide emamectin-benzoate water dispersible granules
Fipronil bisamide (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%
Indoor bioassay and test of pesticide effectiveness example:
1, fipronil bisamide and abamectin compounded Toxicity Determination to rice leaf roller
The test medicine fipronil bisamide derives from Nihon Nihyaku Co., Ltd, Avermectin and emamectin-benzoate are the former medicine that Hebei Weiyuan Biochemical Co., Ltd. produces, test method is also diluted former medicinal acetone solution with reference to " the agricultural industry criteria NY/T1154.1-2006 of the People's Republic of China (PRC) ", according to preliminary experiment, 5 series mass concentration are set according to the method for geometric ratio.5 instar larvaes of choosing neat and consistent in the length of time with writing brush place culture dish, to try worm and behind carbon dioxide narcosis, carry out the drop processing with micro-dropper by head, every drop medicament 1.0uL is on the polypide pronotary, and the examination worm after drop handled moves under the normal condition to be raised.Every processing 4 times repeats, and whenever repeats to be no less than 10 examination worms.And establish the correspondence that does not contain medicament organic solvent processing in contrast, handle back 48 hours observation survey insect death condition.Carry out statistical analysis with the DPS statistical analysis software, calculate the LC of each medicament
50, estimate the activity of reagent agent according to this to the examination worm.Calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard medicament LC
50/ 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
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.
Measurement result to rice leaf roller: see Table 1
Table 1 fipronil bisamide and abamectin compounded joint toxicity measuring to rice leaf roller
| Reagent agent (active ingredient weight ratio) | ??LC 50??(mg/l) | ??ATI | ??TTI | Co-toxicity coefficient CTC |
| Fipronil bisamide | ??15.21 | ??100.00 | ||
| Avermectin | ??3.16 | ??481.33 | ||
| Fipronil bisamide: Avermectin (100: 1) | ??12.00 | ??126.75 | ??103.78 | ??122.14 |
| Fipronil bisamide: Avermectin (50: 1) | ??10.29 | ??147.81 | ??107.48 | ??137.53 |
| Fipronil bisamide: Avermectin (30: 1) | ??8.12 | ??187.32 | ??112.30 | ??166.80 |
| Fipronil bisamide: Avermectin (20: 1) | ??7.09 | ??214.53 | ??118.16 | ??181.56 |
| Fipronil bisamide: Avermectin (10: 1) | ??6.21 | ??244.93 | ??134.67 | ??181.88 |
| Fipronil bisamide: Avermectin (1: 1) | ??5.89 | ??258.23 | ??163.55 | ??157.89 |
| Fipronil bisamide: Avermectin (1: 5) | ??3.01 | ??505.32 | ??417.77 | ??120.95 |
| Fipronil bisamide: Avermectin (1: 10) | ??2.87 | ??529.97 | ??446.66 | ??118.65 |
As seen from Table 1, fipronil bisamide and abamectin compounded rice leaf roller is had very high synergistic effect.Fipronil bisamide and Avermectin proportioning are 30: 1, and 20: 1,10: 1, co-toxicity coefficient was all more than 150 in 1: 1 o'clock.
2, the composite toxicity test of fipronil bisamide and emamectin-benzoate to beet armyworm
According to the method for indoor bioassay test 1, the fipronil bisamide of mensuration different proportion and emamectin-benzoate (abbreviating " first dimension salt " in the table as) compound drug are to the indoor virulence of beet armyworm.Calculate the toxicity index of each medicament and the co-toxicity coefficient of mixture (CTC value) according to identical method.
The composite joint toxicity measuring of table 2 fipronil bisamide and emamectin-benzoate to beet armyworm
| Reagent agent (active ingredient weight ratio) | ??LC 50??(mg/l) | ??ATI | ??TTI | Co-toxicity coefficient CTC |
| Fipronil bisamide | ??21.16 | ??100.00 | ||
| First dimension salt | ??1.96 | ??1079.59 | ||
| Fipronil bisamide: first dimension salt (100: 1) | ??15.09 | ??140.23 | ??109.70 | ??127.83 |
| Fipronil bisamide: first dimension salt (50: 1) | ??10.36 | ??204.25 | ??119.21 | ??171.34 |
| Fipronil bisamide: first dimension salt (30: 1) | ??8.12 | ??260.59 | ??131.60 | ??198.02 |
| Fipronil bisamide: first dimension salt (20: 1) | ??7.03 | ??301.00 | ??146.65 | ??205.25 |
| Fipronil bisamide: first dimension salt (10: 1) | ??4.81 | ??439.92 | ??189.05 | ??232.69 |
| Fipronil bisamide: first dimension salt (1: 1) | ??1.89 | ??1119.58 | ??589.80 | ??189.82 |
| Fipronil bisamide: first dimension salt (1: 5) | ??1.31 | ??1615.27 | ??916.33 | ??176.28 |
| Fipronil bisamide: first dimension salt (1: 10) | ??1.27 | ??1666.14 | ??990.54 | ??168.21 |
As seen from Table 2, fipronil bisamide and emamectin-benzoate are composite has very high synergistic effect to beet armyworm.Fipronil bisamide and emamectin-benzoate proportioning are 30: 1, and 20: 1, co-toxicity coefficient can reach more than 198 in 10: 1 o'clock.
3, the various proportionings of fipronil bisamide and Avermectin are to the field efficiency test of rice leaf roller.
Trial crops is a paddy rice, and controlling object is a rice leaf roller, and the larva worm overwhelming majority in age was 1 age in age to 2.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 rice leaf roller
Annotate: data are 3 repetition mean values in the table.
From result of the test (seeing Table 3) as can be seen, what the 1st day preventive effect was best behind the medicine is formulation examples 4 (22% fipronil bisamide avermectin micro-emulsion, 12ml/ mu), and preventive effect is 90.06%.What the 3rd day preventive effect was best behind the medicine is formulation examples 6 (21% fipronil bisamide Avermectin suspending agent, 15ml/ mu), and preventive effect is 94.40%.The 7th day formulation examples 4,6,7,9 preventive effect all are higher than the preventive effect of 20% fipronil bisamide WDG and the single agent of 1.8% Avermectin EC behind the medicine, show that two kinds of composite reagent synergy are obvious.
4, the various proportionings of fipronil bisamide and emamectin-benzoate are to the field efficiency test of beet armyworm.
Trial crops is a wild cabbage, and controlling object is a beet armyworm, and the larva worm overwhelming majority in age was 2 ages in age to 3.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 beet armyworm
Annotate: data are 3 repetition mean values in the table.
From result of the test (seeing Table 4) as can be seen, what the 1st, 3,7 day preventive effect was best behind the medicine is formulation examples 8 (11% fipronil bisamide emamectin benzoate suspending agent, 25ml/ mu), and preventive effect is respectively to be 92.74%, 100.00%, 100.00%.The 7th day formulation examples 5 (15.5% fipronil bisamide emamectin benzoate microemulsion behind the medicine, 25ml/ mu) and embodiment 8 preventive effects all reach 100.00%, be higher than the preventive effect of the single agent of 20% fipronil bisamide WDG and 1.0% emamectin-benzoate EC far away, show that two kinds of composite reagent synergy are obvious.
Claims (6)
1, a kind of synergetic pesticide composition is characterized in that containing active components A and active component B, and active components A is meant fipronil bisamide, and active component B is meant Avermectin or emamectin-benzoate.
2, composition pesticide according to claim 1 is characterized in that: the weight ratio of active components A and active component B is 100: 1～1: 10.
3. composition pesticide according to claim 2 is characterized in that: the preferred weight ratio of active components A and active component B is 30: 1～10: 1.
4. according to each described composition pesticide of claim 1 to 3, it is characterized in that: the gross weight percentage composition of two kinds of active components in composition is 5%～60%.
5. according to each described insecticides of claim 1 to 3, it is characterized in that: the formulation of described composition pesticide is one or more in suspending agent, water dispersible granules, wetting powder, microemulsion and the aqueous emulsion.
6. the purposes of each described composition pesticide of claim 1 to 3 in control rice leaf roller and beet armyworm.
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| CN101961033A (en) * | 2010-10-20 | 2011-02-02 | 华南理工大学 | Flubendiamide and natural pyrethrum compounded insect-killing microemulsion and preparation method thereof |
| CN102524275A (en) * | 2012-01-18 | 2012-07-04 | 华南理工大学 | Flubendiamide and abamectin compounded suspending agent and preparation method thereof |
| CN102599160A (en) * | 2012-01-19 | 2012-07-25 | 华南理工大学 | Flubendiamide and Spinetoram compound suspending agent and preparation method thereof |
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| CN105191952A (en) * | 2014-06-18 | 2015-12-30 | 郭秦 | Pesticide composition for agricultural pests and pesticide thereof |
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| CN104285981A (en) * | 2014-09-25 | 2015-01-21 | 江苏省绿盾植保农药实验有限公司 | Emamectin benzoate and flubendiamide-containing insecticidal composition and application thereof |
| CN104186505A (en) * | 2014-09-25 | 2014-12-10 | 江苏省绿盾植保农药实验有限公司 | Insecticidal composition containing abamectin and flubendiamide and application thereof |
| CN106804606A (en) * | 2017-02-10 | 2017-06-09 | 北京明德立达农业科技有限公司 | A kind of microcapsule suspension suspending agent of AVM and fluorobenzene insect amide and preparation method thereof |
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Application publication date: 20100317 |