CN104472511B - A kind of molluscicide compositions containing the methaldehyde and emamectin benzoate - Google Patents
A kind of molluscicide compositions containing the methaldehyde and emamectin benzoate Download PDFInfo
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- CN104472511B CN104472511B CN201410692118.5A CN201410692118A CN104472511B CN 104472511 B CN104472511 B CN 104472511B CN 201410692118 A CN201410692118 A CN 201410692118A CN 104472511 B CN104472511 B CN 104472511B
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- pomacea canaliculata
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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Abstract
Patent of the present invention is a kind of molluscicide compositions containing the methaldehyde and emamectin benzoate, belongs to chemical prevention field, is made up of the effective ingredient methaldehyde and emamectin benzoate and auxiliary agent thereof, and preventing and treating rice terrace software class pest especially Pomacea canaliculata is had good potentiation. The synergic ratio of striped rice borer is 10:1 ~ 1:80 by described molluscicide compositions indoor biometrics. Field experiment shows, Pomacea canaliculata is shown good preventive effect by the different dosage form of two kinds of medicament compositions, after medicine 7 days to the preventive effect of Pomacea canaliculata more than 89%, after medicine 14 days to the preventive effect of Pomacea canaliculata more than 87%, be significantly higher than conventional medicament gram snail spy. It is notable that patent of the present invention has potentiation, and preventive effect is good, and dosage is low, to environment and target organisms safety, one medicine such as controls at feature, other insect pests (such as striped rice borer, yellow rice borer) that this compositions can double be harnessed the river on rice more, has good effect to slowing down the Pomacea canaliculata Drug resistance to the methaldehyde.
Description
Technical field
The invention belongs to Chemical Control of Harmful Insects field, be specifically related to a kind of preventing and treating rice terrace snail insect, the especially composite molluscicide of Pomacea canaliculata.
Background technology
Pomacea canaliculata (Pomaceacanaliculata) also known as Ampullaria gigas, treasure spiral shell, snow spiral shell in China, is amphibious freshwater shellfish Mollusca, in China's rice terrace year, occurs 1 ~ 3 generation. Owing to host range is wide, heavy, feeding habits are assorted, and resistance of reverse is strong, and wide adaptability, the feature that reproductive capacity is fast, Pomacea canaliculata quickly overflows in China. Rice seedling is the host crop of Pomacea canaliculata eating, and Pomacea canaliculata has just been quickly become the pernicious aquatic animal of hazard rice, serious threat Rice Production. Pomacea canaliculata all has distribution on the south China the Changjiang river, and northwards spreads with the speed of 8 to 10 kms every year. 2000, this spiral shell was classified as one of 100 kinds of pernicious Invasive Alien Species in the world by the Invasive Alien Species Committee of Experts of World Conservation Union. Within 2003, this spiral shell is listed in one of 16 kinds " endangering maximum alien species " of first batch of invasion by State Environmental Protection Administration.
If not carrying out reasonable effectively preventing Pomacea canaliculata, China's Oryza sativa L. injured area will expand further.
The methaldehyde (Metaldehyde), chemical name: 2,4,6,8 ,-tetramethyl-1,3,5,7-tetra-oxocane, are the molluscicides that a kind of selectivity is strong, after spiral shell takes food or touches medicament, make acetylcholinesterase in breechblock discharge in a large number, destroy mucus special in breechblock, make breechblock rapid dehydration be poisoned to death. This compound is to field biology low toxicities such as Fish, silkworm and Apiss. The methaldehyde is always as the major pharmaceutical agent of preventing and treating Pomacea canaliculata, and resistance is originally more serious.
Emamectin benzoate (EmamectinBenzoate), full name emamectin-benzoate, it it is a kind of new and effective semisynthetic antibiotics insecticide, there is the feature of ultra high efficiency, low toxicity, low-residual, the biological pesticide such as nuisanceless, the larva of lepidopteran insects and the activity of other many insects is high, there is stomach toxicity and action of contace poison.
Up to now, what not yet find the methaldehyde and emamectin benzoate kills the molluscan reports such as spiral shell composition for preventing and controlling Pomacea canaliculata.
Summary of the invention
It is an object of the invention to provide a kind of insecticides preventing and treating rice terrace Pomacea canaliculata, by the mixture of the methaldehyde and emamectin benzoate, make the molluscicide of certain proportioning, it is used for preventing and treating rice terrace Pomacea canaliculata, effective, dosage is low, it is possible to well delay the Pomacea canaliculata resistance to the methaldehyde.
The technical solution used in the present invention is as follows:
A kind of composite molluscicide preventing and treating rice terrace Pomacea canaliculata, it is characterized in that: be made up of the effective ingredient methaldehyde, emamectin benzoate and adjuvant component, wherein the mass ratio of the methaldehyde and emamectin benzoate is 80:1 ~ 1:80, and the gross weight percentage composition of effective ingredient is 1% ~ 90%.
In described composite molluscicide, the mass ratio of the methaldehyde and emamectin benzoate optimization is 10:1 ~ 1:80.
In described composite molluscicide, the mass ratio that the methaldehyde and emamectin benzoate optimize further is 10:1 ~ 1:10.
Described composite molluscicide can be processed into cream, suspending agent, water-dispersible granules, wettable powder, aqueous emulsion, micro-capsule suspension according to technology known in the art.
When the present invention is cream, the weight percentage of each component is:
The methaldehyde: 1-45%
Emamectin benzoate: 1-10%
Solvent: 3-30%
Emulsifying agent: 5-15%
The concrete procedure of processing of this molluscicide compositions cream is: the methaldehyde and emamectin benzoate is dissolved by above-mentioned formula solvent, adds emulsifying agent, stir, can prepare the cream preparation of this compositions in stirred tank.
When the present invention is wettable powder, the weight percentage of each component is:
Methaldehyde 1-70%
Emamectin benzoate 1-10%
Dispersant 3-10%
Wetting agent 1-8%
Filler polishing is to 100%
The concrete procedure of processing of this molluscicide composite wettable powder is: by above-mentioned formula by the methaldehyde and emamectin benzoate and dispersant, wetting agent and filler mixing, uniform stirring in stirred tank, mix homogeneously after jet mill, gets final product the wettable powder of preparation cost inventive composition.
When the present invention is water dispersible granules, the weight percentage of each component is:
Methaldehyde 1-55%
Emamectin benzoate 1-10%
Dispersant 2-8%
Wetting agent 2-8%
Disintegrating agent 2-4%
Filler polishing is to 100%
The concrete procedure of processing of this molluscicide compositions water dispersible granules is: by above-mentioned formula by the methaldehyde, emamectin benzoate and dispersant, wetting agent, disintegrating agent and filler mix homogeneously, pulverize with micro jet, through mediating, it is subsequently adding in fluidized-bed granulation dryer to carry out after pelletize, dry, screening through sample analysis, prepares the water dispersible granules of Pesticidal combination of the present invention.
When the present invention is suspending agent, the weight percentage of each component is:
Methaldehyde 1-40%
Emamectin benzoate 1-40%
Dispersant 3-6%
Wetting agent 1 ~ 4%
Antifreezing agent 0.5-4%
Thickening agent 0.1-3%
Defoamer 0.1-1%
Water polishing is to 100%
The procedure of processing of this molluscicide composition suspending agent is: first mixed by auxiliary agent, through high speed shear mix homogeneously, add the methaldehyde and the former medicine of emamectin benzoate, grind 3 ~ 4 hours in sand mill, make diameter of particle all below 5 ��m, prepare molluscicide composition suspending agent of the present invention.
When this invention is aqueous emulsion, the weight percentage of each component is:
Methaldehyde 1-55%
Emamectin benzoate 1-10%
Emulsifying agent 2-6%
Solvent 3-5%
Antifreezing agent 1-3%
Thickening agent 0.1-5%
Defoamer 0.1-1%
Water polishing is to 100%
The procedure of processing of this Pesticidal combination aqueous emulsion is: the methaldehyde and emamectin benzoate, solvent and emulsifying agent is added together, is dissolved into uniform oil phase;Water, antifreezing agent etc. are mixed uniformly aqueous phase; Aqueous phase is added in oil phase under high-speed stirred simultaneously, high speed shear 5-10min, form oil-in-water type aqueous emulsion. Namely molluscicide compositions aqueous emulsion of the present invention is prepared.
When the present invention is micro-capsule suspension, the weight percentage of component is:
Methaldehyde 1-40%
Emamectin benzoate 1-10%
Capsule leather material 0.5-4%
Solvent 1-3%
Dispersant 1-4%
Emulsifying agent 2-4%
Thickening agent 1-2%
PH adjusting agent 0-2%
Water polishing is to 100%
(1) methaldehyde and emamectin benzoate are dissolved in solvent, add capsule leather material and be uniformly mixing to obtain oil phase; (2) add emulsifying agent in water, adjuvant is uniformly mixing to obtain aqueous phase; (3) aqueous phase joins in oil phase, high speed homogenizing formation O/w emulsion; (4) under 450 revs/min of speed conditions, adding polyamine and participate in interface polymerization reaction, reaction temperature rises to 25 DEG C-70 DEG C, keeps 2-24 hour solidifying encystation; (5) add dispersant, thickening agent, stir and namely make microcapsule suspending agent.
Emulsifying agent of the present invention is one or more in alkylbenzene naphthalene sulfonate, alkylphenol polyoxyethylene phosphate, diphenyl phenol polyethenoxy polyethenoxy ether, styrenated phenol polyoxyethylene ether, alkylphenol polyoxyethylene formaldehyde condensation products, diphenyl phenol polyethenoxy polyformaldehyde condensation substance, Oleum Ricini ethylene oxide adduct, NNO, NP, agriculture breast 500, agriculture breast 600, tween 80, polyvinyl alcohol.
Dispersant of the present invention is one or more in lignosulfonates, fatty acid amide N methyl taurine sodium salt, alkylphenol polyoxyethylene sulfate, polyoxyethylene polyoxypropylene block copolymer, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether.
Wetting agent of the present invention is selected from: one or more in sodium lauryl sulphate, calcium dodecyl benzene sulfonate, Nekal BX, sodium alkyl benzene sulfonate, polyoxyethylene tri-styryl phosphenylic acid salt, spaonin powder.
Disintegrating agent of the present invention is selected from: one or more in bentonite, carbamide, ammonium sulfate, aluminum chloride, citric acid, succinic acid, sodium bicarbonate.
Filler of the present invention is selected from: one or more in Kaolin, kieselguhr, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate.
Thickening agent of the present invention is the one in aluminium-magnesium silicate, xanthan gum, hydroxymethyl cellulose, Radix Acaciae senegalis, polyvinylpyrrolidone or several.
Antifreezing agent of the present invention is selected from: one or more in ethylene glycol, propylene glycol, glycerol, Polyethylene Glycol.
Defoamer of the present invention is selected from: one or more in silicone oil, silicone compound, C10-20 saturated fat acid compounds, C8-10 aliphatic alcohols compound and polyoxyethylene glycerol ether.
Capsule leather material of the present invention is one or more in tolyl isocyanate, the many toluene diisocyanates of polymethylene, methyl diphenylene diisocyanate, Lauxite.
Solvent of the present invention is one or more in toluene, dimethylbenzene, ethanol, N,N-dimethylformamide, chloroform, Ketohexamethylene, hexamethylene, acetone.
PH adjusting agent of the present invention mainly has the one in hydrochloric acid, glacial acetic acid, citric acid, sodium hydroxide, ammonia, ethylenediamine, triethanolamine, triethylamine.
The Pesticidal combination of the present invention compared with prior art, produces following beneficial effect: (1), compared with single dose, said composition is to Pomacea canaliculata notable synergistic, hence it is evident that improve prevention effect, significantly reduces drug cost;(2) insect Drug resistance to medicament can be slowed down, extend the service life of medicament; (3) Pomacea canaliculata is had quick-acting and long-acting function concurrently; (4) field dosage can be greatly reduced, effectively reduce environmental pollution and pesticide residues; (5) toxicity of the methaldehyde is reduced; (6) toxicity to other non-target organisms is reduced.
Experimental data
One, reagent agent: the former medicine of the methaldehyde; The former medicine of emamectin benzoate
Two, for examination insect: Pomacea canaliculata
Three, assay method:
Adopt the method that Toxicity Determination and field test combine.
First pass through Toxicity Determination and draw the built agent co-toxicity coefficient to Pomacea canaliculata of different ratio, again through field control effectiveness test its prevention effect clear and definite, it is determined that the formula proportion of built agent and optimum amount.
Toxicity Determination: adopt leaching spiral shell method. Former medicine being pressed effective ingredient and calculates dosage, be configured to mother solution, adding clear water dilution is 5 ~ 7 gradient concentrations, and with clear water process for comparison, each process sets 3 repetitions. Select two children's spiral shell in the age (young spiral shell) 20 that growth conditions is basically identical, put in the experiment bucket filling medicinal liquid, add a cover gauze (preventing and treating is escaped), it is placed in 25 DEG C of calorstats, 24h " Invest, Then Investigate " death condition, records dead spiral shell number, processes data with SPSS17.0 statistical software.
Field efficacy: indoor bioassay gained has the formula of potentiation make cream (EC), suspending agent (SE), wettable powder (WP), water-dispersible granules (WDG), aqueous emulsion (EW), micro-capsule suspension (CS) are tested. Arranging after community sprays medicament, inspection preventive effect also determines applicable dosage.
Table 1 gives 2 kinds of medicaments and the mixture toxicity test result to Pomacea canaliculata;
By table 1 it can be seen that Pomacea canaliculata is shown good indoor virulence effect, LC by emamectin benzoate50For 0.104mg/L, the methaldehyde is slightly worse to the virulence result of Pomacea canaliculata, and the co-toxicity coefficient of Pomacea canaliculata is all higher than 120 by the methaldehyde and the composite of emamectin benzoate within the scope of 10:1 ~ 1:80, it is shown that well potentiation.
Table 1 methaldehyde and the emamectin benzoate different proportion mixture virulence to Pomacea canaliculata (2 age)
Detailed description of the invention
By the examples below the present invention being elaborated, with 10:1 ~ 1:80 ratio, the methaldehyde and emamectin benzoate are processed into dosage form, the percentage ratio in embodiment is weight percentage; But the invention is not limited in this.
Embodiment 1:30% methaldehyde emamectin benzoate missible oil
Emamectin benzoate 5%, the methaldehyde 25%, acetone 30%, Ketohexamethylene 10%, agriculture breast 600#3%, Oleum Ricini Polyethylene Glycol condensation substance 4%, dimethylformamide complements to 100%, stirs, and prepares 30% methaldehyde emamectin benzoate missible oil.
Embodiment 2:30% methaldehyde emamectin benzoate wettable powder
Emamectin benzoate 5%, the methaldehyde 25%, fatty acid amide N methyl taurine sodium salt 8%, spaonin powder 8%, ammonium sulfate 5%, silica 1 5%, precipitated calcium carbonate is mended to 100%, pulverizes with jet mill, prepare 30% methaldehyde emamectin benzoate wettable powder after mixing.
Embodiment 3:30% methaldehyde emamectin benzoate water dispersible granule
Emamectin benzoate 5%, the methaldehyde 25%, fatty acid amide N methyl taurine sodium salt 4%; Methyl fatty amide benzene sulfonic acid sodium salt 3%, polyoxyethylene tri-styryl phosphenylic acid salt 5%, carbamide 2%; bentonite supplies 100%, and mixing granulation prepares 30% methaldehyde emamectin benzoate water dispersible granule.
Embodiment 4:30% methaldehyde emamectin benzoate suspending agent
Emamectin benzoate 5%, the methaldehyde 25%, alkylphenol polyoxyethylene 4%, NNO3%, aluminium-magnesium silicate 1%, xanthan gum 0.15%, ethylene glycol 1%, polyoxyethylene glycerol ether 0.5%, water supplies 100%, puts into sand mill, be ground to particle diameter 5 ��m, make 30% methaldehyde emamectin benzoate suspending agent after Homogeneous phase mixing.
Embodiment 5:30% methaldehyde emamectin benzoate water Emulsion
Emamectin benzoate 5%, the methaldehyde 25%, NP-104%, dimethylformamide 5%, Ketohexamethylene 3%, aluminium-magnesium silicate 3%, carbamide 2%, polyoxyethylene glycerol ether 0.5%, water supplies 100%. With solvent, former medicine is dissolved, under constant rotational speed, solution is slowly added in aqueous phase, prepare 30% methaldehyde emamectin benzoate water Emulsion.
Embodiment 6:30% methaldehyde emamectin benzoate micro-capsule suspension
Emamectin benzoate 5%; the methaldehyde 25%; dimethylformamide 5%; methyl diphenylene diisocyanate 0.5%, polyvinyl alcohol 2%, fatty acid amide N methyl taurine sodium salt 1%; hexamethylene diamine 1%; Radix Acaciae senegalis 2%, water complements to 100%, prepares 30% Rynaxypyr Mobucin micro-capsule suspension as stated above.
The method using above-mentioned composition pesticide preventing and treating Pomacea canaliculata is made into suspension spray use for adding water at Pomacea canaliculata early period of origination or uniformly spreads fertilizer over the fields inside seedbed or rice field, prevents and treats Pomacea canaliculata and other software class harmful organisms, and its effect is in Table 2.
The field efficacy of table 2 methaldehyde preparation preventing and treating Pomacea canaliculata different from emamectin benzoate
By table 2 it can be seen that Pomacea canaliculata to be shown during 30% methaldehyde emamectin benzoate difference preparation 100g/ mu times liquid application medicine good preventive effect. After medicine, 7 days preventive effects are all more than 89%, and after medicine, 14 days preventive effects are all more than 87%, and under Isodose, preventive effect is significantly better than comparison medicament gram snail spy. It it is the good compound drug of preventing and treating Pomacea canaliculata.
Visible above, the methaldehyde, two kinds of medicament mixtures of emamectin benzoate, in preventing and treating Oryza sativa L. Pomacea canaliculata, have good application prospect.
In addition, this formula also can be fabricated to ultra low volume liquids for air-spraying and thermal fog, aerosol formulations for the Field information of atomizing sprayer and hot mist machine.
Claims (2)
1. the molluscicide compositions containing the methaldehyde and emamectin benzoate, it is characterized in that: be made up of the effective ingredient methaldehyde, emamectin benzoate and adjuvant component, the gross weight percentage composition of effective ingredient is 1%��90%, in described molluscicide compositions, the mass ratio of the methaldehyde and emamectin benzoate is 10:1,1:1,1:10��1:20.
2. molluscicide compositions according to claim 1, it is characterised in that: the dosage form of described molluscicide compositions is cream, suspending agent, water-dispersible granules, wettable powder, aqueous emulsion, micro-capsule suspension.
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| CN105638690B (en) * | 2016-03-09 | 2017-10-24 | 安徽省农业科学院植物保护与农产品质量安全研究所 | A kind of composition pesticide containing emamectin benzoate and niclosamide ethanolamine salt |
| CN106472530A (en) * | 2016-09-23 | 2017-03-08 | 江苏辉丰农化股份有限公司 | A kind of Synergistic insecticidal compositions comprising AVM and the methaldehyde |
| CN107006459B (en) * | 2017-05-19 | 2020-12-04 | 广东农密生物科技有限公司 | Mollusk control water dispersible granule and preparation method thereof |
| CN107318843A (en) * | 2017-07-10 | 2017-11-07 | 江苏师范大学 | The formula and preparation of the methaldehyde and Tea Saponin or tea cake complex biological agricultural chemicals |
| CN107372512A (en) * | 2017-07-10 | 2017-11-24 | 江苏师范大学 | Biological pesticide molluscicide and preparation method thereof |
| CN107136116B (en) * | 2017-07-17 | 2020-05-08 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Molluscicide composition containing emamectin benzoate |
| CN115517252A (en) * | 2022-01-18 | 2022-12-27 | 徐州金禾化工有限公司 | Ointment for preventing and treating mollusks and preparation method and application thereof |
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| 福寿螺不同地理种群抗药性及其生理生化差异研究;刘晓漫;《中国优秀硕士学位论文全文数据库 农业科技辑》;20120715(第7期);D046-11 * |
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Effective date of registration: 20180110 Address after: 210047 Changfeng Road 269, Nanjing chemical industry park, Jiangsu, China Patentee after: Jiangsu Pesticide Research Institute Co., Ltd. Address before: Hefei City, Anhui Province Agricultural Road 230031 No. 40 Patentee before: Plant Protection and Quality & Safety of Agricultural Products Institute, Anhui Academy of Agricultural Sciences |