Cockroach killing bait and preparation method thereof

Abstract

The invention relates to cockroach killing bait and a preparation method thereof. The cockroach killing bait is prepared from the following raw materials in percentage by mass: 1.5 to 2.0 percent of ivermectin, 0.9 to 1.5 percent of maltose, 0.2 to 0.4 percent of milk flavor essence and 2.0 to 14 percent of additive, 1.0 to 2.2 percent of processed sesame powder; and 85-90% of cooked flour. The cockroach killer is good in stability, strong in attractive force and relatively high in cockroach killing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of biological pesticides, and in particular to a cockroach-killing bait and a preparation method thereof. Background Art

[0002] Cockroaches, scientifically known as Blattaria, are one of the most common household pests in cities. Cockroaches carry more than 40 pathogenic bacteria, which can cause serious infectious diseases such as typhoid, cholera, and dysentery, and are extremely harmful to humans. Among them, Australian cockroaches, American cockroaches, and German cockroaches are the most harmful. There are mainly physical and chemical methods for cockroach control. Physical control mainly relies on manual capture and sticky cockroach paper. Although this method is environmentally friendly, the effect is very unsatisfactory; therefore, modern cockroach control still mainly relies on chemical methods, including fumigation, cockroach killing, cockroach killing aerosol, residual spray, and poison bait; among them, the characteristics of using aerosols, sprays, fumigants, etc. to kill cockroaches are fast, but the disadvantages are that cockroaches flee and hide when killing cockroaches, the choking smell is strong, the drug effect is short, cockroaches rebound quickly, and they are easy to develop drug resistance, and pollute the indoor living environment; therefore, only cockroach baits are not easy to volatilize, have long-lasting drug effects, and have a high killing rate. At present, the main drugs used in cockroach baits are acephate, imiprothrin and d-cypermethrin. Acephate belongs to the class of organophosphates, which are highly toxic, chemically unstable and easy to decompose; imiprothrin and d-cypermethrin belong to the class of pyrethroids, and cockroaches have developed resistance due to repeated use. Summary of the invention

[0003] To solve the above technical problems, the purpose of the present invention is to provide a cockroach bait and a preparation method thereof.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A cockroach-killing bait, characterized in that it comprises the following raw materials in percentage by weight:

[0006]

[0007] Preferably, in the cockroach bait, the additives include an oxidant, a preservative, a dispersant and a thickener.

[0008] Preferably, in the cockroach bait, the additive further comprises a taste additive, which is a combination of talcum powder and mono- and di-glycerol fatty acid esters, and the mass ratio of talcum powder to mono- and di-glycerol fatty acid esters is 20-25:1.

[0009] Preferably, in the cockroach bait, the oxidant is tris[2,4-di-tert-butylphenyl]phosphite or AT10.

[0010] Preferably, in the cockroach bait, the preservative is at least one of benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, propyl parahydroxybenzoate, sodium diacetate and calcium propionate.

[0011] Preferably, in the cockroach bait, the dispersant is at least one of triethylhexyl phosphate, sodium lauryl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, guar gum, and fatty acid polyethylene glycol esters.

[0012] Preferably, in the cockroach killing bait, the thickener is at least one of gelatin, sodium caseinate, gum arabic, tamarind polysaccharide gum, sesbania gum, agar, sodium alginate, carrageenan, pectin, xanthan gum, β-cyclodextrin, sodium carboxymethyl cellulose, sodium starch phosphate, sodium carboxymethyl starch, hydroxypropyl starch and propylene glycol alginate.

[0013] Preferably, the cockroach killing bait described herein is:

[0014] Including the following raw materials in percentage by mass:

[0015]

[0016] A method for preparing the cockroach bait as claimed in any one of claims 1 to 8, comprising the following steps:

[0017] The flour is roasted and then crushed, and passed through a 100-mesh sieve; sesame is roasted and then crushed, and passed through a 100-mesh sieve, then various ingredients are weighed in proportion, mixed and stirred evenly, crushed in an ultra-fine air flow mill, and then stirred evenly, and dried at 50-65° C. to obtain a cockroach killing bait.

[0018] Preferably, in the method for preparing a cockroach bait described above, the particle size of the particles pulverized by an ultra-fine airflow pulverizer is less than 2.5 microns.

[0019] By means of the above scheme, the present invention has at least the following advantages:

[0020] The invention can prepare a high-efficiency cockroach bait which has good stability, is not likely to cause cockroaches to develop drug resistance, has good palatability, has low toxicity to the environment and humans and poultry, has a long insecticidal effect, is highly toxic to target organisms such as cockroaches, and has a relatively high cockroach-killing efficiency. The preparation method of the invention is simple, does not require special equipment, and has low cost.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0023] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0024] Example

[0025] A cockroach-killing bait comprises the following raw materials in percentage by weight:

[0026]

[0027] The additives described in the present invention include oxidants, preservatives, dispersants and thickeners. In addition, the antioxidant is tris[2.4-di-tert-butylphenyl]phosphite or AT10. The cockroach bait is used for placement and is open to contact with the air. The antioxidant is added in the present invention to ensure that other components in the present invention are not oxidized and deteriorated by air. The preservative is at least one of benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, propyl paraben, sodium diacetate, and calcium propionate. The addition of the preservative can ensure that the cockroach bait prepared by the present invention will not be moldy during use, thereby affecting the use effect. The dispersant is at least one of triethylhexyl phosphate, sodium lauryl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, gum, and fatty acid polyethylene glycol esters. The dispersant used can fully disperse the flubendiamide original powder in the aqueous solution, and finally achieve the purpose of uniform mixing in the cockroach bait. The thickener is at least one of gelatin, sodium caseinate, gum arabic, tamarind polysaccharide gum, sesbania gum, agar, sodium alginate, carrageenan, pectin, xanthan gum, beta-cyclodextrin, sodium carboxymethyl cellulose, sodium starch phosphate, sodium carboxymethyl starch, hydroxypropyl starch, and propylene glycol alginate. The thickener can ensure that the prepared fipronil suspension has stable performance and is not easy to accumulate or stratify, thereby ensuring that the cockroach-killing effective ingredients are evenly dispersed during the implementation of the present invention, and ultimately ensuring stable drug efficacy.

[0028] The additives in the present invention also include a mouthfeel additive, which is a combination of talcum powder and mono- and di-glycerol fatty acid esters, and the mass ratio of talcum powder to mono- and di-glycerol fatty acid esters is 20-25:1.

[0029] Embodiment 1

[0030] Based on the embodiment, a cockroach bait comprises the following raw materials in percentage by weight:

[0031]

[0032] The preparation method of the cockroach killing bait comprises the following steps:

[0033] The flour is cooked and then crushed, and then passed through a 100-mesh sieve; sesame is fried and then crushed, and then passed through a 100-mesh sieve; then various ingredients are weighed in proportion, mixed and stirred evenly, and then crushed in an ultra-fine air flow mill, wherein the particle size is less than 2.5 microns, and then stirred evenly, dried at 50°C, and passed through a 100-200 mesh sieve, so as to obtain a cockroach killing bait.

[0034] Embodiment 2

[0035] Based on the embodiment, a cockroach bait comprises the following raw materials in percentage by weight:

[0036]

[0037] The preparation method of the cockroach killing bait comprises the following steps:

[0038] The flour is cooked and then crushed, and passed through a 100-mesh sieve; sesame is fried and then crushed, and passed through a 100-mesh sieve, then various ingredients are weighed in proportion, mixed and stirred evenly, and crushed in an ultra-fine air flow mill, wherein the particle size is less than 2.5 microns, and then stirred evenly, dried at 60°C, and passed through a 100-200 mesh sieve, so as to obtain a cockroach killing bait.

[0039] Embodiment 3

[0040] Based on the embodiment, a cockroach bait comprises the following raw materials in percentage by weight:

[0041]

[0042]

[0043] The preparation method of the cockroach killing bait comprises the following steps:

[0044] The flour is cooked and then crushed, and then passed through a 100-mesh sieve; sesame is fried and then crushed, and then passed through a 100-mesh sieve, then various ingredients are weighed in proportion, mixed and stirred evenly, and then crushed in an ultra-fine air flow mill, wherein the particle size is less than 2.5 microns, and then stirred evenly, dried at 55°C, and passed through a 100-200 mesh sieve, so as to obtain a cockroach killing bait.

[0045] The three cockroach baits prepared in the examples of the above implementation scheme were tested for their killing effect on cockroaches with reference to GB / T13917.7-2009 "Indoor efficacy test and evaluation of registered pesticides for hygienic insecticides Part 7: Bait". 30 German cockroaches, half male and half female, were placed in a special square box, with bait placed in one corner of the box, feed placed in the opposite corner, and a culture dish containing a soaked cotton swab placed in the middle, and the knockdown and death of the test insects were observed. The specific test results are shown in Table 1 below.

[0046] Table 1 Test results of three samples.

[0047] Table 1

[0048]

[0049] It can be concluded from the above embodiments that the high-efficiency cockroach-killing bait of the present invention has the advantages of good stability, is not easy to cause cockroaches to develop drug resistance, has good palatability, is highly toxic to target organisms such as cockroaches, and has a relatively high efficiency in killing cockroaches.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A cockroach killing bait, characterized in that: Including the following raw materials in percentage by mass:

2. The cockroach killing bait according to claim 1, characterized in that: The additives include oxidants, preservatives, dispersants and thickeners.

3. A cockroach killing bait according to claim 2, characterized in that: The additives also include a mouthfeel additive, which is a combination of talcum powder and mono- and di-glycerol fatty acid esters, and the mass ratio of talcum powder to mono- and di-glycerol fatty acid esters is 20-25:

1.

4. The cockroach killing bait according to claim 2, characterized in that: The oxidant is tris[2,4-di-tert-butylphenyl]phosphite or AT10.

5. The cockroach killing bait according to claim 2, characterized in that: The preservative is at least one of benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, propyl parahydroxybenzoate, sodium diacetate, and calcium propionate.

6. The cockroach killing bait according to claim 2, characterized in that: The dispersant is at least one of triethylhexyl phosphoric acid, sodium lauryl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, guar gum, and fatty acid polyethylene glycol esters.

7. The cockroach killing bait according to claim 2, characterized in that: The thickener is at least one of gelatin, sodium caseinate, gum arabic, tamarind polysaccharide gum, sesbania gum, agar, sodium alginate, carrageenan, pectin, xanthan gum, β-cyclodextrin, sodium carboxymethyl cellulose, sodium starch phosphate, sodium carboxymethyl starch, hydroxypropyl starch and propylene glycol alginate.

8. A cockroach bait according to any one of claims 1 to 7, characterized in that: Including the following raw materials in percentage by mass:

9. A method for preparing the cockroach bait according to any one of claims 1 to 8, characterized in that: The following steps are involved: The flour is roasted and then crushed, and passed through a 100-mesh sieve; sesame is roasted and then crushed, and passed through a 100-mesh sieve, then various ingredients are weighed in proportion, mixed and stirred evenly, crushed in an ultra-fine air flow mill, and then stirred evenly, and dried at 50-65° C. to obtain a cockroach killing bait.

10. The method for preparing a cockroach-killing bait according to claim 9, characterized in that: The particle size of the powder is less than 2.5 microns.