CN104521950A - Long-acting bait for killing cockroach and preparation method - Google Patents
Long-acting bait for killing cockroach and preparation method Download PDFInfo
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Abstract
The invention provides a long-acting bait for killing cockroach. The bait contains urea-formaldehyde resin. A method for preparing the long-acting bait for killing cockroach comprises the following steps: dissolving a pesticide component in a solvent, mixing with a high speed after an emulsifying agent is added and forming a stable O/W latex; mixing with a high speed after urea-formaldehyde resin prepolymer aqueous solution is added, subsequently gradually reducing the rotation speed, regulating the pH value to 1.5-2.5, slowly heating to 50-55 DEG C, curing cyst walls, and regulating the pH value to neutrality after the reaction reaches the endpoint to obtain a microcapsule sustained release suspension agent; and removing the solvent, drying the product, then uniformly mixing with a part of attractant and preservative, then adding into a mixed liquid comprising the remaining attractant and a humidifying agent, and mixing into a paste to obtain the long-acting bait for killing cockroach. The long-acting bait for killing cockroach disclosed by the invention has the following advantages that the stability of the pesticide component is far higher than that of a common bait; the bait does not work instantly after cockroach takes the bait so that cockroach that are not taken the bait do not get alert; and large intake of the bait by cockroach results in remarkable killing effect.
Description
Technical field
The present invention relates to a kind of long-acting killing cockroach bait formulation and preparation method thereof.
Background technology
Cockroach is one of typical sanitary insect pest, and its excreta and casting off a skin can pollute storage, transport and the food of processing site.Cockroach can carry many pathogene, likely produces some diseases, as the viral disease of diarrhoea, dysentery, cholera, leprosy, the plague, typhoid fever and polio and so on after confirmer's contact.In addition, cockroach can also carry parasitic ovum, causes allergic reaction, and the ubiquity of cockroach has a strong impact on normal production and the life of the mankind.
At present, along with growth in the living standard, more and more higher to environmental quality requirement, also more and more come into one's own to the control of cockroach, the control of cockroach is the important goal of health pest control.The main chemical method that adopts is prevented and treated both at home and abroad at present.Because chemical method needs dispenser in a large number and repeatedly, impel the pesticide resistance of cockroach to increase gradually, add difficulty to the control of cockroach.
Have the multiple medicine for controlling anti-cockroach both at home and abroad at present, formulation is graininess bait formulation and glue bait formulation substantially.According to disclosed technological document, its component basic comprising is made up of insecticide, attractant, bait, preservative, wherein insecticide many employings ethiprole, sulfluramid, lufuhuangxianan etc.; Attractant many employings fish meal, spices, albumen powder etc.; Bait adopts corn flour, soybean meal etc.; Preservative generally adopts potassium sorbate, Sodium Benzoate or nipagin esters.Various trapping bait formulation disclosed in above-mentioned document, have good effect for control cockroach.But also have obvious shortcoming, insecticidal constituent is too fast in occurring in nature degraded on the one hand, once insecticidal constituent, lower than lethal dose, not only can not kill cockroach, add drug resistance on the contrary in bait formulation; On the other hand, insecticidal constituent is scattered in food, produces poisoning symptom immediately after cockroach takes food, and produces restricted speed signal to not taking food cockroach.Between above-mentioned two kinds of reasons, common cockroach bait formulation is difficult to thorough killing cockroach, causes the wasting of resources, and contaminated environment, cost accounting is high.
Slowly-releasing control techniques is third generation drug preparation technique, microcapsules technology is utilized can solid, liquid pesticidal to be coated in natural or synthesis macromolecule cyst material, thus reach prolongation drug effect, reduce high-toxic pesticide toxicity, prevent active ingredient decomposition and volatilization, reduce dosage, prevent drift, reduce environmental pollution, use object easily.Adopting interfacial polymerization law technology, is that cyst material prepares ethiprole/sulfluramid micro-capsule suspension with Lauxite, and technically existing document describes.But this technology is applied in cockroach killing bait and not yet has report.
Summary of the invention
Object of the present invention is the long-acting killing cockroach bait formulation of the long-acting low toxicity of one, the safety and environmental protection that propose on the basis of existing cockroach bait formulation, low cost; For this reason, the present invention also provides its preparation method.
Long-acting killing cockroach bait formulation of the present invention, containing Lauxite in described bait formulation.
Preferably, in described bait formulation, the mass percentage of Lauxite is 0.5 ~ 5.0%.
Long-acting killing cockroach bait formulation provided by the invention, comprises insecticidal constituent, the agent of macromolecular material Controlled release, thickener, bait, preservative and humectant etc.Specifically be made up of each component of following mass percent: insecticidal constituent 0.05 ~ 2.0%, macromolecular material Controlled release agent, 0.5 ~ 5.0%, thickener 0.1 ~ 0.3%, preservative 0.2 ~ 0.5%, bait 40 ~ 60%, all the other are humectant.
Insecticidal constituent wherein can be ethiprole, sulfluramid any one or the two combined.Ethiprole is that a kind of Phenylpyrazole insecticides, insecticidal spectrum are wide, to insect based on stomach poison function, have concurrently and tag and certain systemic action, its mechanism of action is the chloride metabolism hindering insect γ-aminobutyric acid to control, therefore very high insecticidal activity is had to important pests such as aphid, leafhopper, plant hopper, lepidopterous larvae, fly class and coleopteras, to crop without poisoning, there is higher safety; Sulfluramid is novel chronic organofluorine insecticide, good disinsection effect, is mainly used in the insects that creep such as control ant, blattaria, cockroach.Its mechanism of action suppresses the energy metabolism of insect, because this product active constituent content is low, safer to mammal, adopts bait formulation to go out therapy control, obviously can reduce dosage, greatly reduce the pollution of medicament to environment.
Macromolecular material Controlled release agent is wherein Lauxite, and Lauxite is excellent degradable high polymer material, for wrapping up insecticidal constituent, makes Controlled release agent, slows down degradation speed and a poison speed.
Thickener is wherein guar gum, and guar gum has excellent water conservation, thickening power.
Preservative is wherein Nipagin complex esters, and Nipagin complex esters is a kind of broad spectrum activity efficient food preservative, plays antisepsis.
Food calling composition is wherein the combination of tapioca starch, cracker meal, blackstrap three, and above-mentioned food calling composition is cheap, is rich in cockroach and ingests required nutrient component, be the food that cockroach likes picked-up.
Humectant is wherein sorbierite, glycerine or the combination of the two.
Preparation method's step of long-acting killing cockroach bait formulation of the present invention is as follows: be dissolved in appropriate solvent by the insecticidal constituent of formula ratio, adds appropriate emulsifier high-speed stirred and forms stable O/W emulsion; The Lauxite prepolymer aqueous solution of formula ratio is added after stirring, mixing high-speed stirred 10-15 minute, then rotating speed is reduced gradually, add watery hydrochloric acid in batches and regulate pH=1.5-2.5, slowly be warming up to 50-55 DEG C of solidification cyst wall, be adjusted to neutrality with alkali after arriving reaction end, obtain microcapsule controlled-release suspending agent; Except desolventizing, gains are dry, then mix with part bait and preservative, then add in mixed liquor that residue bait and humectant form, stir into paste, obtain long-acting killing cockroach bait formulation of the present invention.
Owing to have employed macromolecular material technique for packing, insecticidal constituent stability, far above common bait formulation, also improves to the effect of going out that lures of cockroach, can trap and kill cockroach well.
Owing to have employed technique scheme, the present invention compared with prior art has following remarkable result:
1, have employed macromolecule technique for packing, insecticidal constituent stability is far above common bait formulation;
2, after cockroach takes food, toxicity can not be shown effect immediately, decreases the warning to not taking food cockroach;
3, because cockroach is large to bait formulation food ingestion of the present invention, killing effect is remarkable.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the stability test result of long-acting killing cockroach bait formulation of the present invention.
Embodiment
Following embodiment is convenient to understand the present invention better, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is conventional method.In the following example, involved percentage except as otherwise noted, is calculated all by weight percentage.
embodiment 1
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.05%, Lauxite prepolymer 0.5%, guar gum 0.3%, Nipagin complex esters 0.2%, tapioca starch 35.0%, blackstrap 10.0%, cracker meal 10.0%, sorbierite surplus.
The preparation method of long-acting killing cockroach bait formulation of the present invention is as follows:
According to the part by weight of above-mentioned each raw material, weigh up the weight of each raw material respectively.Under normal temperature, ethiprole or the former medicine of sulfluramid are dissolved in appropriate solvent (acetone), add appropriate emulsifier tween-80 high-speed stirred and form stable O/W emulsion.The Lauxite prepolymer aqueous solution of formula ratio is added after stirring, mixing high-speed stirred 12 minutes, then reduces rotating speed gradually, adds watery hydrochloric acid in batches and regulates about pH=2 to make it polycondensation reaction occurs, after polycondensation reaction terminates, be slowly warmed up to 52 DEG C of solidification cyst walls; Be adjusted to neutrality with sodium hydroxide after arriving reaction end, obtain ethiprole microcapsule controlled-release suspending agent.Except desolventizing, gained residue is dry.Then mix with tapioca starch, cracker meal, Nipagin complex esters, then be added in the mixed liquor of blackstrap, humectant composition, stir into paste, long-acting killing cockroach bait formulation can be obtained.
embodiment 2
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.05%, Lauxite prepolymer 0.5%, guar gum 0.3%, Nipagin complex esters 0.2%, tapioca starch 35.0%, blackstrap 15.0%, cracker meal 10.0%, sorbierite surplus.
embodiment 3
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.05%, Lauxite prepolymer 0.5%, guar gum 0.3%, Nipagin complex esters 0.2%, tapioca starch 35.0%, blackstrap 10.0%, cracker meal 15.0%, sorbierite surplus.
embodiment 4
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.1%, sulfluramid 1.0%, Lauxite prepolymer 1.0%, guar gum 0.1%, Nipagin complex esters 0.2%, tapioca starch 30.0%, blackstrap 15.0%, cracker meal 10.0%, sorbierite surplus.
embodiment 5
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.1%, Lauxite prepolymer 1.0%, guar gum 0.1%, Nipagin complex esters 0.2%, tapioca starch 30.0%, blackstrap 10.0%, cracker meal 15.0%, sorbierite surplus.
embodiment 6
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.1%, Lauxite prepolymer 1.0%, guar gum 0.1%, Nipagin complex esters 0.2%, tapioca starch 30.0%, blackstrap 15.0%, cracker meal 15.0%, sorbierite surplus.
embodiment 7
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.2%, Lauxite prepolymer 2.0%, guar gum 0.2%, Nipagin complex esters 0.2%, tapioca starch 25.0%, blackstrap 5.0%, cracker meal 10.0%, glycerine surplus.
embodiment 8
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.2%, Lauxite prepolymer 2.0%, guar gum 0.2%, Nipagin complex esters 0.2%, tapioca starch 25.0%, blackstrap 10.0%, cracker meal 10.0%, sorbierite surplus.
embodiment 9
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Ethiprole 0.2%, Lauxite prepolymer 2.0%, guar gum 0.2%, Nipagin complex esters 0.2%, tapioca starch 25.0%, blackstrap 15.0%, cracker meal 15.0%, sorbierite surplus.
embodiment 10
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 0.5%, ethiprole 0.2%, Lauxite prepolymer 1.0%, guar gum 0.3%, Nipagin complex esters 0.2%, tapioca starch 35.0%, blackstrap 10.0%, cracker meal 10.0%, sorbierite 10%, glycerine surplus.
embodiment 11
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 0.5%, Lauxite prepolymer 1.0%, guar gum 0.3%, Nipagin complex esters 0.2%, tapioca starch 35.0%, blackstrap 15.0%, cracker meal 10.0%, sorbierite surplus.
embodiment 12
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 0.5%, Lauxite prepolymer 1.0%, guar gum 0.3%, Nipagin complex esters 0.2%, tapioca starch 35.0%, blackstrap 10.0%, cracker meal 15.0%, sorbierite surplus.
embodiment 13
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 1.0%, Lauxite prepolymer 3.0%, guar gum 0.1%, Nipagin complex esters 0.2%, tapioca starch 30.0%, blackstrap 15.0%, cracker meal 10.0%, sorbierite surplus.
embodiment 14
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 1.0%, Lauxite prepolymer 3.0%, guar gum 0.1%, Nipagin complex esters 0.2%, tapioca starch 30.0%, blackstrap 10.0%, cracker meal 15.0%, sorbierite surplus.
embodiment 15
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 1.0%, Lauxite prepolymer 3.0%, guar gum 0.1%, Nipagin complex esters 0.2%, tapioca starch 30.0%, blackstrap 15.0%, cracker meal 15.0%, glycerine surplus.
embodiment 16
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 2.0%, Lauxite prepolymer 5.0%, guar gum 0.2%, Nipagin complex esters 0.2%, tapioca starch 25.0%, blackstrap 5.0%, cracker meal 10.0%, sorbierite surplus.
embodiment 17
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 2.0%, Lauxite prepolymer 5.0%, guar gum 0.2%, Nipagin complex esters 0.2%, tapioca starch 25.0%, blackstrap 10.0%, cracker meal 10.0%, sorbierite surplus.
embodiment 18
The formula of long-acting killing cockroach bait formulation of the present invention is as follows:
Sulfluramid 2.0%, Lauxite prepolymer 5.0%, guar gum 0.2%, Nipagin complex esters 0.2%, tapioca starch 25.0%, blackstrap 15.0%, cracker meal 15.0%, sorbierite surplus.
The long-acting killing cockroach bait formulation production technology of embodiment 2-18 is with reference to embodiment 1.
stability test
For embodiment 6, embodiment 15, test is placed through 6 months fields, contrast is not for adopt the containing fipronil of slowly-releasing control techniques and the cockroach killing bait of sulfluramid, Fig. 1 is result of the test, as shown in Figure 1, in long-acting killing cockroach bait formulation, ethiprole, the former drug stabilisation of sulfluramid are apparently higher than contrast sample, have good stability.
trapping test
Get cockroach bait formulation of the present invention (for embodiment 6), certain commodity killing cockroach bait formulation (containing fipronil) and do not carry out comparative trial in the wild, respectively at 1 day containing the blank bait formulation of insecticidal constituent, 3 days, 5 days, 7 days, 10 days, within 15 days, observe remaining active mound quantity, the results are shown in Table 1.
Table 1 go out cockroach bait formulation killing effect test
。
By above-mentioned test, illustrate that cockroach bait formulation of the present invention killing effect in very short time kills cockroach bait formulation a little less than certain commodity, but along with the growth of time, killing effect kills cockroach bait formulation significantly better than certain commodity, show that this cockroach killing bait has long-acting killing action.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a long-acting killing cockroach bait formulation, is characterized in that: containing Lauxite in described bait formulation.
2. long-acting killing cockroach bait formulation according to claim 1, is characterized in that: in described bait formulation, the mass percentage of Lauxite is 0.5 ~ 5.0%.
3. long-acting killing cockroach bait formulation according to claim 1 and 2, it is characterized in that: described bait formulation is made up of each component of following mass fraction: insecticidal constituent 0.05 ~ 2.0%, Lauxite prepolymer 0.5 ~ 5.0%, thickener 0.1 ~ 0.3%, preservative 0.2 ~ 0.5%, bait 40 ~ 60%, all the other are humectant.
4. long-acting killing cockroach bait formulation according to claim 3, is characterized in that: described insecticidal constituent is ethiprole and/or sulfluramid.
5. long-acting killing cockroach bait formulation according to claim 3, is characterized in that: described thickener is guar gum.
6. long-acting killing cockroach bait formulation according to claim 3, is characterized in that: described preservative is Nipagin complex esters.
7. long-acting killing cockroach bait formulation according to claim 3, is characterized in that: described bait is the mixture of tapioca starch, cracker meal, blackstrap.
8. long-acting killing cockroach bait formulation according to claim 3, is characterized in that: described humectant is sorbierite and/or glycerine.
9. the preparation method of the arbitrary described long-acting killing cockroach bait formulation of claim 1-8, is characterized in that: step is as follows: be dissolved in appropriate solvent by the insecticidal constituent of formula ratio, adds appropriate emulsifier high-speed stirred and form stable O/W emulsion; The Lauxite prepolymer aqueous solution of formula ratio is added after stirring, mixing high-speed stirred 10-15 minute, then rotating speed is reduced gradually, add watery hydrochloric acid in batches and regulate pH=1.5-2.5, slowly be warming up to 50-55 DEG C of solidification cyst wall, be adjusted to neutrality with alkali after arriving reaction end, obtain microcapsule controlled-release suspending agent; Except desolventizing, gains are dry, then mix with part bait and preservative, then add in mixed liquor that residue bait and humectant form, stir into paste, obtain long-acting killing cockroach bait formulation of the present invention.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107788019A (en) * | 2017-11-30 | 2018-03-13 | 广西南宁益土生物科技有限责任公司 | A kind of hygienic insecticide for being used to prevent and treat cockroach |
| CN107788016A (en) * | 2017-10-24 | 2018-03-13 | 天峨县平昌生态农业有限公司 | A kind of method for preventing and treating family cockroach |
| CN107996621A (en) * | 2017-11-30 | 2018-05-08 | 广西南宁益土生物科技有限责任公司 | A kind of composition for preventing cockroach |
| CN115191433A (en) * | 2022-07-22 | 2022-10-18 | 中国人民解放军海军特色医学中心 | Application of functional additive in cockroach killing composition, cockroach killing composition and application of cockroach killing composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115191433A (en) * | 2022-07-22 | 2022-10-18 | 中国人民解放军海军特色医学中心 | Application of functional additive in cockroach killing composition, cockroach killing composition and application of cockroach killing composition |
| CN115191433B (en) * | 2022-07-22 | 2024-05-28 | 中国人民解放军海军特色医学中心 | Application of functional auxiliary agent in cockroach killing composition, cockroach killing composition and application thereof |
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Application publication date: 20150422 |