CN1063914C - Plant protection pesticide containing avermectin - Google Patents

Plant protection pesticide containing avermectin Download PDF

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Publication number
CN1063914C
CN1063914C CN97103658A CN97103658A CN1063914C CN 1063914 C CN1063914 C CN 1063914C CN 97103658 A CN97103658 A CN 97103658A CN 97103658 A CN97103658 A CN 97103658A CN 1063914 C CN1063914 C CN 1063914C
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China
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agent
avermectin
preservative
suspending agent
water
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CN1194780A (en
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王玉万
潘贞德
戴晓曦
游存华
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China Agricultural University
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China Agricultural University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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Abstract

The present invention relates to insecticide containing evericin (AVM), which is used for protecting plants. The present invention is characterized in that suspensions containing evericin (AVM) comprise aqueous suspensions, oil suspensions, emulsifiable suspensions and emulsifiable paste; known pesticide, such as organophosphorus, chlorbenzuron, organonitrogen, carbamates, etc., can also be added in the suspensions so as to prepare mixing preparation suspensions. The suspensions or the mixing preparation suspensions of the present invention have the advantages of low production cost, no harm caused by organic solvents, no dust pollution and convenient transportation and use; compared with the control efficiency of existing emulsifiable solutions containing the evericin (AVM) and wettable powder, the present invention has good control efficiency; when the control efficiency is equal, dosage can be saved by 20 to 50%.

Description

The insecticide that a kind of plant protection that contains Avermectin is used
The invention belongs to the insecticide that plant protection is used, or rather, the present invention is a kind of Avermectin (Avermectin B that contains 1, be called for short AVM) the desinsection used of plant protection, kill the mite suspending agent.
The kind of the Insecticidal and acaricidal agent that plant protection is used is a lot, and can make various formulations.The eighties U.S. MERCK company successfully researchs and develops out and contains the AVM agricultural insecticide, and can use with other mixed pesticide.At present, to contain the formulation of AVM agricultural insecticide mainly be missible oil and wetting powder (William C.Campbell, " Ivevmectin ﹠amp to this class; Abamectin ", Springer-Verlag New York Inc.1989 P287-310; The agricultural chemicals collected translation, 1994,16 (3): 1-13).As everyone knows, missible oil contain be easy in a large number volatilization catch fire, to human body and the virulent organic solvent of plant, transportation is also inconvenient; Wetting powder has a large amount of dust in producing, using, contaminated environment influences operating personnel's health.
The objective of the invention is to overcome the shortcoming of prior art, propose that a kind of cost is low, the agricultural insecticidal that contains AVM of good drug efficacy, kill the mite suspending agent.
Suspending agent of the present invention comprises outstanding agent of water quality suspending agent, oil suspending agent, breast or the emulsifiable paste that contains AVM.
Water quality suspending agent of the present invention comprises AVM host and wetting agent, suspending agent, tackifier, antifreezing agent, preservative, its content (is 100% as follows in composition weight): AVM0.1-5%, wetting agent 0.5-5%, suspending agent 0.2-5%, tackifier 0-5%, antifreezing agent 5-15%, preservative 0.1-1%, all the other are water.
The component of oil suspending agent of the present invention and content thereof: AVM0.1-5%, organic solvent 20-50%, wetting agent 0.5-5%, suspending agent 0.2-5%, antifreezing agent 5-15%, preservative 0.1-1%.
The outstanding agent of breast of the present invention comprises emulsifiable concentrate and microemulsion.The component of described emulsifiable concentrate and content thereof: AVM0.1-5%, organic solvent 5-10%, emulsifier 1-30%, tackifier 0.1-2%, antifreezing agent 5-10%, preservative 0.1-1%, its surplus is a water.The component of described microemulsion and content thereof: AVM0.1-5%, organic solvent 5-10%, emulsifier 5-30%, antifreezing agent 5-10%, preservative 0.1-1%, all the other are water.
The component of emulsifiable paste of the present invention or paste and content thereof: AVM0.1-5%, tackifier 0.5-50%, emulsifier 1-30%, all the other are water.
AVM of the present invention is discovery in 1976, and it is the metabolite of A Foman streptomycete (Streptomycesavermitilis), and the mixture of being made up of eight quite similar homologues of structure is Avermectin A 1a, A 1b, A 2a, A 2b, B 1a, B 1b, B 2a, B 2b, that extensively utilize now is B 1aAnd B 1bMixture be Avermectin, it can adopt existing technology to extract and separate (William C.Camphell.Ivermectin and Abamectin, Springer-Verlag, New York Inc.1989.P287-310).
Described AVM also can be made into oily liquid and replaces the crystallization product (or former medicine) of purity about 90%, the oily liquid preparation method: bacterial classification was through 7-9 days liquid fermentations, zymotic fluid gets mycelium after filtering, with mycelium with the ethanol lixiviate, extract is by the macroporous absorbent resin post, ANM is adsorbed like this, uses the acetone wash-out then, and the eluent concentrating under reduced pressure promptly gets oily liquid.
Described wetting agent comprises lauryl sodium sulfate, neopelex, Tween-80, cyclohexyl succinate sodium sulfonate, sodium lignin sulfonate; Described suspending agent comprises xanthans, gum Arabic, carboxymethyl cellulose, polyvinylpyrrolidone, nekal; Described antifreezing agent comprises ethylene glycol, propane diols, glycerine; Described preservative comprises phenmethylol, Sodium Benzoate, formaldehyde, and described emulsifier or dispersant comprise Tween-80, OP-10, OP-21,0203B, agricultural newborn 1600-I; Described organic solvent comprises isopropyl alcohol, ring alcohol, dimethyl formamide.Above-claimed cpd all is commercially available prod.
Suspending agent of the present invention can prepare by prior art, two kinds of preparation methods are arranged usually: a kind of is that not water-soluble solid material is machined to below 300 microns, make water-soluble additive mixing preparations such as itself and wetting agent, antifreezing agent, tackifier then, disperse or dissolve to make slurry, levigate through the colloid mill homogenize, adjust pH value at last, flowability, wetability is until conforming to quality requirements; Second method is earlier former medicine and wetting agent etc. and water mixing to be disperseed, and pulverizes through the thickness two-stage, makes former medicine slurry, mix with tackifier, antifreezing agent, preservative and water then, promptly get suspending agent (" pesticides new formulation ", Chemical Industry Press, 1994 P78-87) after filtering.
Aforesaid water quality suspending agent, oil suspending agent, the outstanding agent of breast, the agent of emulsifiable paste list can be made into the various suspension emulsions that are mixed with known agricultural insecticide.The agricultural insecticidal that can be mixed, miticide comprise organic phosphates, organic nitrogen, carbamates, benzoylphenyl urea, and metabolic poison class, microorganism formulation class and galenical class, its addition are the 0.1-40% of suspending agent gross weight of being mixed.Agricultural insecticidal, acaricidal mode are mixed: can add in single agent of the above-mentioned various suspending agents that prepared, mix; Can also in the single agent process of preparation, together add with certain component.
The using method that the suspending agent list of the present invention agent or the suspending agent that is mixed can be taked to use always is to carry out constant, low volume after water or other mineral oil such as the paraffin oil dilution, or direct ultra low volume spray, the pest control usual amounts is to spray to the crop leaf surface behind the thin up, dispenser, during control evil mite, spray behind the thin up; Also can dress seed behind the dilute with water; Paste or paste spray or brush after going back dilutable water.Suspending agent of the present invention all can be used for preventing and treating insect and the evil mite on the crops such as vegetables, fruit tree, cotton, flowers, tobacco.
The AVM of the containing suspension emulsion of the present invention or the suspending agent that is mixed are compared with the missible oil of the known AVM of containing, owing to few usefulness or without organic solvent, not only reduced product cost, and avoid the volatilization of organic solvent and environmental pollution or cause catches fire, therefore production and transport, packing all than missible oil safety, convenient, do not have poisoning to plant yet; Compare with wetting powder, production process no dust pollution of the present invention does not influence operating personnel's health.In addition, the present invention has other advantage of general suspension pesticide too, and is thinner as particle, and generally all at the 0.5-5 micron, drug effect is better, and when equal effect, dose can be saved 20-50%; Good dispersion can mix spontaneous dispersion with the water of any ratio or stirs a little and can disperse, and dispersion stabilization might as well because stable effective ingredients, former medicine particle diameter does not change in storage, the viscosity of preparation does not change with reserve temperature.
Further describe characteristics of the present invention below in conjunction with example.
Example 1
This example is the water quality suspending agent that preparation contains AVM0.2%.
Avermectin mycelium 100kg (being roughly equal to AVM0.4kg) is added in the blending tank, the sodium dodecyl sulfate solution 70kg of adding 1%, homogenizing is levigate to about 40 microns of solid phase particles in the input colloid mill of mixing back, be ground to the 5-10 micron through sand mill again, take out and add in the blending tank, add nekal 8kg, Tween-80 10kg, ethylene glycol 10kg, Sodium Benzoate 2kg again,, promptly get the water quality suspending agent after homogenizing with high speed shear mulser emulsification pretreatment.
Example 2
This example is the water quality suspending agent that preparation contains AVM4.8%.
The former powder of 26.7kgAVM (purity is 90%) is milled to below 300 microns, mix with the 25kg Tween-80, with the colloid mill homogenizing to about 40 microns of solid phase particles, add 5kg water again, further pulverize homogenizing with the high speed shear mulser, and then be ground to solid phase particles 0.5-2 micron through sand mill, take out grinding material, add nekal (calling BX in the following text) 1.5kg, ethylene glycol 75kg, Sodium Benzoate 0.5kg, with high speed shear mulser homogenizing, and in homogenization process, adding 0.3% xanthan gum solution to 500 liter, homogenizing promptly made the water quality suspending agent in 50 minutes.
Example 3
This examples preparation contains the 0.2%AVM oil suspending agent.
Avermectin mycelium 100kg (containing AVM0.4kg) is joined in the blending tank, add isopropyl alcohol 70kg, Tween-80 3kg simultaneously, mix the back drop in the colloid mill homogenizing levigate to solid phase particles about 40 microns, taking out when sand mill is ground to below 10 microns drops in the blending tank more again, add BX5kg, ethylene glycol 20kg, Sodium Benzoate 2kg, behind the strong agitation homogeneous, promptly get oil suspending agent.
Example 4
This example is the emulsifiable concentrate that preparation contains 5%AVM.
With the former powder of 27.7kgAVM (purity) 90%), after the dissolving of 40kg dimethyl formamide, add isopropyl alcohol 10kg, mix the back and add Tween-80 150kg, high speed shear is mixed to the back adding tackify liquid that homogenizes and (wherein contains gum Arabic 0.1%, Sodium Benzoate 1%, all the other are water) to 500 liters, can make emulsifiable concentrate.
Example 5
This example is to contain the AVM0.2% emulsifiable concentrate with the preparation of Avermectin oily liquid.
To contain Avermectin 10% oily liquid 10kg (containing AVM1kg), after 70 ℃ of heating for dissolving, add ethylene glycol 25kg, Tween-80 10kg, high speed shear is mixed to and adds tackifier after the homogenizing and (wherein contain xanthans 0.1%, Sodium Benzoate 1%, all the other are water) to 500 liters, promptly make emulsifiable concentrate.
Example 6
This example is to contain the AVM0.2% microemulsion with the oily liquid preparation.
The oily liquid that will contain 1kgAVM adds pure 50 liters on ring after 70 ℃ of heating for dissolving, Tween-80 3kg behind the high speed shear mixing, under agitation slowly adds water to 500 liters, can obtain microemulsion after filtration.
Example 7
This example is that preparation contains the 5%AVM microemulsion.
27.7kgAVM (purity 90%) is added Tween-80 150kg, ethylene glycol 25kg, Sodium Benzoate 0.5kg with 2.5kg dimethyl formamide dissolving back, emulsification pretreatment, homogenize, under agitation add entry to 500 liter then, filter and promptly get the microemulsion that contains 5%AVM.
Example 8
This example is the paste suspension that preparation contains 2%AVM.
The oily liquid that will contain 10kgAVM is in 70 ℃ of heating for dissolving, add 25kg ethylene glycol, 0.5kg Sodium Benzoate, 50kgOP-10, strong agitation homogenizes, and leaves standstill under agitation to add 0.8% xanthan gum solution to 500 when being cooled to below 40 ℃ and liter obtain emulsifiable paste paste suspending agent.
Example 9
This example is that preparation contains the 0.2%AVM-4% Aphox suspending agent that is mixed.
With Avermectin mycelium 20kg, (containing AVM0.2kg), water 44kg, Aphox 4kg, Tween-80 10kg, OP-10 5kg, JFC0.2kg, mixing the back drops in the colloid mill levigate to below 40 microns, be ground to less than 10 microns with sand mill again, add nekal 6kg, ethylene glycol 10kg, Sodium Benzoate 1kg, strong agitation homogenizes and promptly gets the suspending agent that is mixed.
Example 10
This example is that preparation contains the 2%AVM-0.8% decis suspending agent that is mixed.
Get bromine cyanogen chrysanthemum nitre 1.6kg, add 20 liters of 0.2% xanthan glues, in sand mill, be ground to 0.2 micron, adding 10kgAVM solution again (is mixed by the AVM oily liquid of 5kg0.8% and 5kg Tween-80 and forms,) mixing, add stabilizing solution (containing 0.2% xanthans, 10% ethylene glycol, 1% Sodium Benzoate) to 200 liters, further grind, homogenizing promptly gets product.
Embodiment 11
This example is the preparation AVM0.2%-fenpropathrin 10% outstanding agent of breast that is mixed.
After the dissolving of the former powder of 0.22kgAVM (purity is 90%) usefulness 2kg dimethyl formamide, add isopropyl alcohol 10kg, fenpropathrin 10kg, Tween-80 5kg, OP-10 5kg mix the back that homogenizes with the high speed shear mulser and add tackify liquid (contain xanthans 0.2%, Sodium Benzoate 0.1%, ethylene glycol 5%, all the other are water) to 100 liters.
Example 12
This example is that preparation contains the go out suspending agent that is mixed of young urea of 5%AVM-20%.
Get the young urea 40kg that goes out, add 20 liters of 0.2% xanthans, in sand mill, be ground to 0.2 micron, add 25kg again and contain the solution (the AVM oily liquid of 12.5kg 0.8% and 12.5kg Tween-80 are mixed and form) of AVM, mixing adds stabilizing solution (contain 0.2% xanthans, 10% ethylene glycol, 0.3% Sodium Benzoate, all the other are water) to 200 liters, further grind, homogenizing promptly gets the suspending agent that is mixed.
Embodiment 13
Present embodiment is that direct 10% Le Siben that adds the suspending agent gross weight that is mixed of oil suspending agent list agent that example 3 makes is promptly made the suspending agent that is mixed that contains 0.2%AVM-10% Le Siben.
Embodiment 14
Present embodiment is the emulsion that is mixed that preparation contains the 1%AVM-40% propargite.
Get 80 kilograms of propargites, behind the adding 20kg acetone solution, add 20 liters of 8%AVM oily liquid 25kg, Tween-80s, add stabilizing solution (containing 0.2% xanthans, 6% ethylene glycol, 0.2% Sodium Benzoate) behind the mixing to 200 liters, high speed shear homogenizes and promptly gets product.This agent is mainly used in control two spotted spider mite, blister mite etc., time spent thin up 3000-4000 times, spray pesticide.
Embodiment 15
This example is to use effect test and compares with known missible oil and wetting powder.
All tests all are to spray behind the preparation thin up, and it the results are shown in Table 1~table 4.
In the table: AVM-0.2% missible oil is self-control, and it is as follows to fill a prescription: AVM0.2%, and emulsifier 0203B 10%, penetrating agent JFC 2%, all the other are dimethylbenzene.
AVM1.8% missible oil is the prescription of the agriculture chemical registration card LS94538 of The Ministry of Agriculture of the People's Republic of China, MOA;
The AVM0.2% wettable powder is self-control: contain AVM0.2%, surfactant 0203B 5%, diffusion agent N 1%, all the other are lightweight CaCO 3
The AVM1.8% wettable powder is self-control, and it is as follows to fill a prescription:
AVM1.8%, surfactant 0203B 10%, diffusion agent N 1%, all the other are lightweight CaCO 3
Fenpropathrin 20% missible oil is that commercially available going out swept sharp 20% missible oil (SUMITOMO CHEMICAL chemical industry Co., Ltd. produces, and the Hangzhou Weir reaches Co., Ltd's packing)
Find out that from table 1~table 4 result the be mixed drug effect of suspending agent of suspending agent list of the present invention agent or its all is better than missible oil and wetting powder.
Several AVM formulation control of table 1. sub-district, diamond-back moth field drug effect relatively
Medicament AVM consumption (g/ mu) Control efficiency behind the medicine (%)
Behind the medicine 1 day Behind the medicine 3 days Behind the medicine 7 days Behind the medicine 14 days
Example 1 water quality suspending agent 0.36 85.1 89.1 94.5 96.2
Example 5 emulsifiable concentrates 0.36 82.4 86.4 93.2 92.1
AVM0.2% missible oil 0.36 83.3 87.2 93.8 95.7
The AVM0.2% wettable powder 0.36 72.8 76.3 80.1 82.6
Several AVM formulation control of table 2. sub-district, citrus red mite field drug effect relatively
Medicament AVM consumption (g/ mu) Control efficiency behind the medicine (%)
Behind the medicine 1 day Behind the medicine 3 days Behind the medicine 7 days Behind the medicine 14 days
Example 1 water quality suspending agent 0.36 93.2 95.3 98.5 100.0
Example 5 emulsifiable concentrates 0.36 91.7 95.2 97.4 98.5
AVM0.2% missible oil 0.36 91.8 94.3 96.2 98.2
The AVM0.2% wettable powder 0.36 82.1 85.8 87.1 89.4
Several AVM formulations of table 3. to cotton three generations cotton bollworm control effect relatively
Medicament AVM consumption (g/ mu) Control efficiency behind the medicine (%)
Behind the medicine 3 days Behind the medicine 6 days Behind the medicine 9 days
The AVM1.8% suspending agent 0.9 93.3 95.2 96.7
The AVM1.8% emulsifiable concentrate 0.9 93.0 94.8 95.3
AVM1.8% missible oil 0.9 91.5 93.1 93.7
The AVM1.8% wettable powder 0.9 88.1 90.8 91.3
Newborn sub-district, the field drug effect of hanging agent and single agent emulsifiable solution that is mixed table 4. example 11 compares
Controlling object Medicament Effective ingredient consumption (g/ mu) Control efficiency behind the medicine (%)
1 day 3 days 7 days 10 days
The eggplant tetranychid The example 11 outstanding agent of breast that is mixed 0.24 93.1 95.5 97.0 99.2
AVM1.8% missible oil 0.36 88.1 90.3 92.4 94.3
Fenpropathrin 20% missible oil 5 90.2 91.5 93.0 91.2
Diamond-back moth The example 11 outstanding agent of breast that is mixed 0.24 88.2 90.3 91.5 94.2
AVM1.8% missible oil 0.36 90.1 92.5 95.4 97.5
Fenpropathrin 20% missible oil 5 83.2 84.5 85.6 85.1
Cabbage caterpillar The example 11 outstanding agent of breast that is mixed 0.24 89.2 91.5 92.4 95.2
AVM1.8% missible oil 0.36 87.0 91.5 92.0 93.4
Fenpropathrin 20% missible oil 5 86.3 88.2 90.1 88.5
Aphid The example 11 outstanding agent of breast that is mixed 0.24 87.0 88.1 86.5 84.0
AVM1.8% missible oil 0.36 76.2 78.5 79.1 78.0
Fenpropathrin 20% missible oil 5 86.8 87.7 88.5 89.2

Claims (6)

1, a kind of plant protection insecticide that contains Avermectin; it is characterized in that forming the water quality suspending agent by Avermectin, wetting agent, suspending agent, tackifier, antifreezing agent, preservative and water, it forms content (in suspending agent weight 100%): Avermectin 0.1-5%, wetting agent 0.5-5%, suspending agent 0.2-5%, tackifier 0-5%, antifreezing agent 5-15%, preservative 0.1-1%, all the other are water.
2, the insecticide used of a kind of plant protection that contains Avermectin; it is characterized in that the oil suspending agent be made up of Avermectin, organic solvent, wetting agent, suspending agent, antifreezing agent, preservative, it forms content (in oil suspending agent weight 100%): Avermectin 0.1-5%, organic solvent 20-50%, wetting agent 0.5-5%, suspending agent 0.2-5%, antifreezing agent 5-15%, preservative 0.1-1%.
3, the insecticide used of a kind of plant protection that contains Avermectin; it is characterized in that the dense newborn suspending agent formed by Avermectin, organic solvent, emulsifier, tackifier, antifreezing agent, preservative and water; it forms content (in emulsifiable concentrate weight 100%): Avermectin 1-5%, organic solvent 5-10%, emulsifier 1-30%, tackifier 0.1-2%, antifreezing agent 5-10%, preservative 0.1-1%, all the other are water.
4, the insecticide used of a kind of plant protection that contains Avermectin; it is characterized in that forming the micro emulsion suspending agent by Avermectin, organic solvent, emulsifier, antifreezing agent, preservative and water; it forms content (in microemulsion weight 100%): Avermectin 1-5%, organic solvent 5-10%, emulsifier 5-30%, antifreezing agent 5-10%, preservative 0.1-1%, all the other are water.
5, the insecticide used of a kind of plant protection that contains Avermectin; it is characterized in that forming emulsifiable paste by Avermectin, tackifier, emulsifier, antifreezing agent, preservative and water; it forms content (is 100% in emulsifiable paste weight): Avermectin 0.1-5%, tackifier 0.5-50%, emulsifier 1-30%, antifreezing agent 5-10%, preservative 0.1-1%, all the other are water.
6, according to the described insecticide of claim 1 to 5, it is characterized in that described wetting agent is selected from lauryl sodium sulfate, neopelex, Tween-80, described suspending agent is selected from xanthans, gum Arabic, CMC, polyvinylpyrrolidone, dibutyl naphthalene semi-annular jade pendant acid sodium, described antifreezing agent is selected from ethylene glycol, propane diols, glycerine, described preservative is selected from phenmethylol, Sodium Benzoate, formaldehyde, described emulsifier is selected from Tween-80, OP-10, OP-21, and described organic solvent is selected from isopropyl alcohol, cyclohexanol, dimethyl formamide.
CN97103658A 1997-03-27 1997-03-27 Plant protection pesticide containing avermectin Expired - Fee Related CN1063914C (en)

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CN1069033C (en) * 1998-11-13 2001-08-01 王玉万 Anti-parasite oral spray containing evericin and ivermectin for sheep
CN1115964C (en) * 1998-12-24 2003-07-30 章阿恩 Composition for agricultural chemicals and preparation thereof
CN1094040C (en) * 1999-05-28 2002-11-13 华南农业大学 Nimbin mixed pesticide preparation and its preparing method
CN100566567C (en) * 2006-05-19 2009-12-09 东北农业大学 The preparation of nimoctin, moxidectin aqueous emulsion, microemulsion, suspending agent
CN101480187B (en) * 2008-01-09 2013-05-15 河北威远生物化工股份有限公司 Disinsection/miticide pharmaceutical composition
CN101317578B (en) * 2008-07-04 2011-01-19 华南农业大学 Mixed insecticide of aschersonia aleyrodis webb. and avermectin
CN101331883B (en) * 2008-07-25 2011-01-19 华南农业大学 Paecilomyces javanicus and avermectin compounded pesticides
CN102217612B (en) * 2008-09-10 2013-02-20 惠州市南天生物科技有限公司 Red ant bait and its application method
CN102450253A (en) * 2010-10-15 2012-05-16 华北制药集团爱诺有限公司 Avermectin suspension concentrate and preparation method thereof
CN102302021A (en) * 2011-09-28 2012-01-04 华南理工大学 Spinetoram and abamectin compounded suspending agent and preparation method thereof
CN104737691B (en) * 2015-03-20 2017-08-01 甘肃农业大学 One film 2 years fertilising operation method under corn full film double-furrow film
CN106719729A (en) * 2016-12-14 2017-05-31 安徽东健化工科技有限公司 A kind of pollution-free high-efficient composition pesticide
CN108271777A (en) * 2018-02-02 2018-07-13 安徽省厚博生态农业有限公司 A kind of combined insecticide of agricultural high-effiency
CN110278947A (en) * 2019-07-29 2019-09-27 山东圣鹏科技股份有限公司 A kind of novel agrochemical formulations and preparation method thereof

Citations (1)

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US5436355A (en) * 1994-02-03 1995-07-25 Merck & Co., Inc. Process for making avermectin/zein compositions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5436355A (en) * 1994-02-03 1995-07-25 Merck & Co., Inc. Process for making avermectin/zein compositions

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