CN103583558B - The aqueous emulsion of a kind of beta-cypermethrin and fenoxycarb and application - Google Patents

The aqueous emulsion of a kind of beta-cypermethrin and fenoxycarb and application Download PDF

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Publication number
CN103583558B
CN103583558B CN201310592102.2A CN201310592102A CN103583558B CN 103583558 B CN103583558 B CN 103583558B CN 201310592102 A CN201310592102 A CN 201310592102A CN 103583558 B CN103583558 B CN 103583558B
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fenoxycarb
cypermethrin
beta
aqueous emulsion
application
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CN103583558A (en
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马春烈
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Jinan Cavin Biotechnology Co Ltd
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Jinan Cavin Biotechnology Co Ltd
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Abstract

The invention belongs to the technical field that agricultural chemical insecticide is composite, be specially aqueous emulsion and the application of a kind of beta-cypermethrin and fenoxycarb.Said composition active ingredient is beta-cypermethrin and fenoxycarb; wherein the weight ratio of beta-cypermethrin and fenoxycarb is; beta-cypermethrin: fenoxycarb=1:1-1:5; this compounded combination has effectively resisted the problem that pest resistance produces; farthest alleviate the problem of current pest resistance to insecticide; thus decrease the consumption of agricultural chemicals; also the impact for environment is alleviated; meet the trend of future society environmental protection, composition of the present invention receives best crop protection effect.

Description

The aqueous emulsion of a kind of beta-cypermethrin and fenoxycarb and application
Technical field
The invention belongs to the technical field that agricultural chemical insecticide is composite, be specially aqueous emulsion and the application of a kind of beta-cypermethrin and fenoxycarb.
Background technology
beta-cypermethrin
English name: theta-cypermethrin
Molecular formula: C 22h 19c i2nO 3
Chemical name: (S) a-cyano group-3-phenoxy benzyl (1R, 3S)-3-(2,2-dichloro dialkylene)-2,2-dimethyl cyclopropane carboxylic acid ester and (R)-a-cyano group-3-phenoxy benzyl (1S, 3R)-3-(2,2-dichloroethylene)-2,2-dimethyl cyclopropane carboxylic acid's esters
Chemical classes: pyrethroid
Physicochemical property: outward appearance is white or light yellow crystalline powder, without visible exogenous impurity.1.219g/m during proportion 25 DEG C 3; Fusing point 78-81 DEG C; Vapour pressure (20 DEG C) 2.3 × (10 negative 7) Pa; Under normal temperature, in water, solvability is extremely low, dissolves in ketone, alcohols and aromatic hydrocarbon solvent.
Action character: theta-cypermethrin belongs to third generation pyrethroid insecticides, be mainly used in the control of the agriculture and forestry injurious insects such as field crop, economic crops, vegetables, fruit tree and the domestic hygiene insect such as vegetables, mosquito class bedbug and have that virus killing is efficient, wide spectrum, to people and animals' low toxicity, effect rapidly, the feature such as holding effect is long, have and tag and stomach toxicity, ovicidal, insect is had to the effects such as antifeedant activity, but all there is no systemic action.Resistance of rainwater washing against, has special efficacy to the insect that organophosphorous pesticide has reached resistance especially.Due to use for years, in addition with the cross resistance problem of organic phosphates, carbamates, make insect generally produce very strong pesticide resistance to such medicament, preventive effect is not equal to before.
fenoxycarb
[chemical name] [2-(4-phenoxy-phenoxy) ethyl] urethanes.
[physicochemical property] former medicine outward appearance is white to light yellow solid, fusing point 53 C ~ 54 DEG C.
Solvability when 25 DEG C: water 5.7mg/l, hexane 5 g/l), acetone, methyl alcohol, toluene >250g ,/l
Stability: stablize more than 2 years under room temperature condition, stablizing .5% pulvis outward appearance to light is free-pouring powder,
Acid-base value (in H2S04)≤0.3%.
English common name: fenoxycarb(BSI; ISO; ANSI);
The p-phenoxy-phenoxy of chemical name: 2-() ethyl carbamic acid ethyl ester, ethyl [2-(4-phenoxphenoxy) ethyl] carbamate
Fenoxycarb has stomach toxicity and action of contace poison, and has insect growth regulator, IGR effect, desinsection wide spectrum; But its insecticidal action right and wrong are neuropathic, show as and have strong juvenile hormone activity to various insects, ovicidal can be caused, suppress the metamorphosis in adult stage and casting off a skin of larval phase, to cause after larva friend or pupa time dead, the lasting period is long, harmless to beneficial organism.Can be used for preventing and treating sanitary insect pest, forestry pest, storage pest and agricultural pests.
But its action effect is also very single, after large-scale application, resistance risk is also very high.
Summary of the invention
The object of the present invention is to provide a kind of aqueous emulsion and the application thereof that have beta-cypermethrin and fenoxycarb, said composition active ingredient is beta-cypermethrin and fenoxycarb, wherein the weight ratio of beta-cypermethrin and fenoxycarb is, beta-cypermethrin: fenoxycarb=1:1-1:5, this compounded combination has effectively resisted the problem that pest resistance produces, farthest alleviate the problem of current pest resistance to insecticide, thus decrease the consumption of agricultural chemicals, also the impact for environment is alleviated, meet the trend of future society environmental protection, composition of the present invention receives best crop protection effect.
Technical scheme of the present invention is:
An aqueous emulsion for beta-cypermethrin and fenoxycarb, active ingredient is beta-cypermethrin and fenoxycarb, and wherein the weight ratio of beta-cypermethrin and fenoxycarb is, beta-cypermethrin: fenoxycarb=1:1-1:5.
As preferably, the weight ratio of beta-cypermethrin and fenoxycarb is, beta-cypermethrin: fenoxycarb=1:2-1:3.
The aqueous emulsion of beta-cypermethrin of the present invention and fenoxycarb, it consists of following component by weight percentage:
Beta-cypermethrin 1-5%,
Fenoxycarb 10-25%,
Solvent 10-15%,
Defoamer 1-4%,
Emulsifier 5-10%,
Thickener 2-5%,
Antifreezing agent 4-8%,
Surplus is water.
Further preferably,
The aqueous emulsion of beta-cypermethrin of the present invention and fenoxycarb, it consists of following component by weight percentage:
Beta-cypermethrin 5%,
Fenoxycarb 15%,
Solvent 12%,
Defoamer 3%,
Emulsifier 7%,
Thickener 3%,
Antifreezing agent 6%,
Surplus is water.
Described solvent is the one in toluene, methylated soya oil, the rapeseed oil that methylates, mineral oil, dimethylbenzene, 150# solvent naphtha or 200# solvent naphtha.
Described defoamer is selected from: the one in silicone oil, silicone compound.
Described emulsifier is nonionic or anionic.Wherein, the emulsifier of nonionic is as phenethyl phenol polyethenoxy polyethenoxy ether, alkylphenol polyoxyethylene formaldehyde condensation products, fatty alcohol-polyoxyethylene ether or alkylphenol polyoxyethylene phosphate; The emulsifier of anionic is as alkyl benzene calcium sulfonate, sodium alkyl benzene sulfonate or C8-C20 sodium alkyl sulfate.Concrete example is as serial in agriculture breast 1600#, NP is serial, 700# is serial, 400# is serial.
Described thickener is selected from: the one in Magnesiumaluminumsilicate, cyanethyl cellulose, polyvinyl alcohol.
Described antifreezing agent is selected from: the one in ethylene glycol, glycerine.
The aqueous emulsion of beta-cypermethrin of the present invention and fenoxycarb, the wood louse on control cotton field, orchard, vegetable garden and ornamental plants, a red-spotted lizard class, leaf roller, the pine caterpillars of control woods trees, fall webworm, looper, willow boat moth, codling moth; Be particularly useful for preventing and treating fall webworm.
Beneficial effect of the present invention is:
Said composition is complex insecticidal composition, compared with single product, there is the feature of binary Pesticidal combination, significantly enhance insecticidal effect, delay the generation of pest resistance to insecticide, especially special efficacy is had to thrips, and expand effective active control spectrum, there is speed fast, lasting period is long, consumption is low, eco-friendly feature, the more important thing is, this compounded combination has effectively resisted the problem that pest resistance produces, farthest alleviate the problem of current pest resistance to insecticide, thus decrease the consumption of agricultural chemicals, also the impact for environment is alleviated, meet the trend of future society environmental protection.The control efficiency of composition of the present invention is especially good to control fall webworm, mainly by the result of the synergistic function between each component.
Study the compound synergic of composition of the present invention, test adopts fall webworm.
Calculate virulence equation and lethal concentration of 50 LC50 by method of least squares, calculate toxicity index and the mixed co-toxicity coefficient (CTC value) of medicament according to the abundant method of Sun Yun.
Table 1 different ratio relation is to the toxicity test result of fall webworm
Process LC50(PPM) Co-toxicity coefficient
Beta-cypermethrin 1: fenoxycarb 1 0.855 529.8
Beta-cypermethrin 1: fenoxycarb 2 0.727 733.8
Beta-cypermethrin 1: fenoxycarb 3 0.632 835.7
Beta-cypermethrin 1: fenoxycarb 5 0.717 613.6
Beta-cypermethrin 21.03
Fenoxycarb 0.56
As can be seen from Table 1, beta-cypermethrin and fenoxycarb composite, has very high synergistic effect, especially beta-cypermethrin: during fenoxycarb=1:2-1:3, synergistic effect is more obvious.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in detail.
embodiment 1
20% aqueous emulsion: the composition of beta-cypermethrin and fenoxycarb
Beta-cypermethrin 5%,
Fenoxycarb 15%,
Methylate rapeseed oil 12%,
Silicone oil 3%,
Alkylphenol polyoxyethylene formaldehyde condensation products 7%,
Cyanethyl cellulose 3%,
Glycerine 6%,
Surplus is water.
Preparation method is the conventional method of this area.
This embodiment medicament is applied to control fall webworm:
Co-toxicity coefficient is: 859.5;
By 6000 times of thin up sprayings, after medicine, 7 days control efficiency are that 99.1%, 5% beta-cypermethrin suspending agent dilutes 500 times and 15% fenoxycarb missible oil dilutes 3000 times, use with same method respectively, after medicine 7 days, control efficiency was respectively 77.5% and 73.9%, significant difference.
embodiment 2
6% aqueous emulsion: the composition of beta-cypermethrin and fenoxycarb
Beta-cypermethrin 1%,
Fenoxycarb 5%,
Dimethylbenzene 10%,
Silicone compound 1%,
Phenethyl phenol polyethenoxy polyethenoxy ether 10%,
Polyvinyl alcohol 2%,
Ethylene glycol 8%,
Surplus is water.
Preparation method is the conventional method of this area.
This embodiment medicament is applied to control leaf roller:
Co-toxicity coefficient is: 770.3;
By 4000 times of thin up sprayings, after medicine, 7 days control efficiency are that 96.60%, 1% beta-cypermethrin suspending agent dilutes 200 times and 5% fenoxycarb missible oil dilutes 1000 times, use with same method respectively, after medicine 7 days, control efficiency was respectively 73.2% and 67.7%, significant difference.
embodiment 3
30% aqueous emulsion: the composition of beta-cypermethrin and fenoxycarb
Beta-cypermethrin 5%,
Fenoxycarb 25%,
Toluene 15%,
Silicone compound 4%,
Fatty alcohol-polyoxyethylene ether 5%,
Magnesiumaluminumsilicate 5%,
Glycerine 5%,
Surplus is water.
Preparation method is the conventional method of this area.
This embodiment medicament is applied to control ceroplastes floridensis:
Co-toxicity coefficient is: 790.1;
By 6000 times of thin up sprayings, after medicine, 7 days control efficiency are that 97.5%, 5% beta-cypermethrin suspending agent dilutes 500 times and 25% fenoxycarb missible oil dilutes 2000 times, use with same method respectively, after medicine 7 days, control efficiency was respectively 76.9% and 70.3%, significant difference.

Claims (2)

1. an aqueous emulsion for beta-cypermethrin and fenoxycarb, active ingredient is beta-cypermethrin and fenoxycarb, and it consists of following component by weight percentage:
Beta-cypermethrin 5%,
Fenoxycarb 15%,
Methylate rapeseed oil 12%,
Silicone oil 3%,
Alkylphenol polyoxyethylene formaldehyde condensation products 7%,
Cyanethyl cellulose 3%,
Glycerine 6%,
Surplus is water.
2. the aqueous emulsion of beta-cypermethrin according to claim 1 and fenoxycarb is for preventing and treating the application of fall webworm.
CN201310592102.2A 2013-11-22 2013-11-22 The aqueous emulsion of a kind of beta-cypermethrin and fenoxycarb and application Expired - Fee Related CN103583558B (en)

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CN107136079B (en) * 2017-05-12 2020-01-07 扬州大学 Cyhalofop-butyl emulsion in water and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024163A (en) * 1972-05-25 1977-05-17 National Research Development Corporation Insecticides
US5004822A (en) * 1971-12-21 1991-04-02 National Research Development Corporation Insecticides
CN1305715A (en) * 2001-02-28 2001-08-01 郑州沙隆达伟新农药有限公司 Insecticide composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004822A (en) * 1971-12-21 1991-04-02 National Research Development Corporation Insecticides
US4024163A (en) * 1972-05-25 1977-05-17 National Research Development Corporation Insecticides
CN1305715A (en) * 2001-02-28 2001-08-01 郑州沙隆达伟新农药有限公司 Insecticide composition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
反式高效氯氰菊酯及药效简介;钱小敏 张近高;《中华卫生杀虫药械》;20020515;第8卷(第2期);第69-70页 *

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