CN110663701A

CN110663701A - Extrusion type soft moisture-retention termite bait

Info

Publication number: CN110663701A
Application number: CN201910949800.0A
Authority: CN
Inventors: 毕晓峰; 韦益健
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-01-10

Abstract

The invention provides an extrusion type soft moisture-retention termite bait, which comprises the following components in parts by weight: 40% -64% of base material; 15% -30% of adhesive; 1 to 5 percent of attractant; 1 to 5 percent of insecticide; 1 to 3 percent of preservative; 0.5 to 3 percent of water-retaining agent; 17 to 35 percent of water. The termite bait agent disclosed by the invention utilizes the characteristics of excellent wettability, adhesiveness, water-retaining property and film-forming property of cellulose ether and the preference of termites on the cellulose ether, and the prepared termite bait agent has high water content and is favored by the termites; the film has good film-forming water resistance, can resist drug loss, and has long drug timeliness; by utilizing the characteristics of excellent toughness and flexibility of the cellulose ether, the shape of the product can be changed at will when the product is used, the feeding effect of termites is enhanced, and the termite control efficiency is improved.

Description

Extrusion type soft moisture-retention termite bait

Technical Field

The invention relates to the technical field of termite baits, in particular to an extrusion type soft moisture-retention termite bait.

Background

Termite is one of five pests in the world and belongs to social insects living in a brood. Habit fearing light, grade differentiation, tight tissue and clear division. The harm is characterized by concealment, universality and severity. Especially in tropical and subtropical areas. The harmfulness is mainly shown as follows: 1. damage to buildings. Such as: the wood members eaten by the termites, the scattered termites and the like, and the formic acid corrodes and destroys any building materials except the glass, thereby causing damage to the buildings. 2. Damage to the dam. The wall of thousand miles breaks in the ant cave. The colony individuals of the soil termites range from millions to tens of millions, the nest built by the soil termites reaches several cubic meters, and the diameter of the termite channel can reach more than ten centimeters. In flood season, the pipe leakage of the dam and even dam break are easily caused. 3. Damage to forest and horticultural crops. Termites die of forest trees by eating cellulose. In addition, termites can also harm underground cables and the like.

In the termite killing work, methods such as powder spraying, trapping and killing, nest digging and the like are mostly adopted for killing the termites; the method of toxic soil and wood is adopted to prevent new buildings and house decoration. However, strong professional skills are needed for spraying powder and nest digging, and poisonous soil and poisonous wood have great pollution influence on the environment for preventing termite treatment. The trapping method has the advantage of small dosage, but the bagged powder or pills adopted by the traditional trapping method are easy to wet and mildew, and the aging period is short.

Along with the development of economy, people have better and better indoor decoration. The increase of the usage amount of the wood material and the arrangement of each layer of toilet of the house provide sufficient food and water source for the termites, the harm of the termites is continuously increased, and great property loss is brought to the property of people. In the traditional indoor decoration termite prevention, the wood member is subjected to medicament treatment by methods of brushing, spraying, dipping and the like, and the cut or shaved wound surface needs to be subjected to medicament supplement treatment in the installation construction. Pyrethroid medicines are mostly adopted for decorative painting, spraying and dipping medicines, the timeliness is effective, and meanwhile, new indoor chemical pollution is generated.

Most of the traditional bait products for trapping and killing termites are in the forms of bagged powder or pills and the like, and most of the bait drugs in the past adopt mirex (forbidden according to stockholm convention 2009); insect growth inhibitors such as hexaflumuron, diflubenzuron, chlorfenapyr, hydramethylnon, and sulfluramid are often selected as the currently used drugs. In actual use, the growth inhibitor is extremely easy to be wetted, the structure is collapsed, the growth inhibitor is in direct contact with air or soil, and the medicine is rapidly decomposed. The bait only can lure and kill the white ants in a short time, and cannot trap and kill the white ants for a long time and play a role in shielding and protecting buildings and trees.

Disclosure of Invention

To overcome the deficiencies of the prior art and to address at least one of the above problems, the present invention provides an extruded, soft, moisture-retaining termite bait. The product adopts the following technical scheme.

One aspect of the invention discloses an extruded soft moisturizing termite bait.

The bait comprises the following components in percentage by weight:

40% -64% of base material;

15% -30% of adhesive;

1 to 5 percent of attractant;

1 to 5 percent of insecticide;

1 to 3 percent of preservative;

0.5 to 3 percent of water-retaining agent;

17 to 35 percent of water.

In a further preferred embodiment, the bait comprises by weight:

45% -50% of base material;

20 to 25 percent of adhesive;

2 to 4 percent of attractant;

2 to 3 percent of insecticide;

1 to 2 percent of preservative;

1 to 2 percent of water-retaining agent;

20 to 27 percent of water.

Wherein, optionally, the base material is one or a mixture of more of pine wood powder, wolfsbane grass powder, bagasse powder, paper fiber powder or sugar. In particular, the addition of sugar makes it effective in attracting termites to feed.

In a preferred embodiment, the bait comprises by weight:

45% of base material;

1.5% of sugar;

23% of an adhesive;

3% of attractant;

2.5% of pesticide;

1% of preservative;

1% of water-retaining agent;

23 percent of water.

Wherein, optionally, the adhesive is one or a mixture of more of cellulose ether methyl cellulose, hydroxymethyl cellulose or hydroxypropyl cellulose.

Preferably, the adhesive is methyl cellulose of cellulose ether, and can be extruded by a screw in production by utilizing the unique cohesiveness, wettability, water-retaining property and moldability of the methyl cellulose, so that the product has higher water content. Meanwhile, the characteristics of excellent toughness and flexibility of the cellulose ether are utilized, so that the shape of the product can be randomly changed according to the requirement in use.

Wherein, optionally, the attractant is one or a mixture of several of black fungus, mushroom or termite nest body powder. Preferably, the black fungus is more effective to attract termites to eat.

Wherein, optionally, the pesticide is one or a mixture of more of inorganic salt, shrinkage stone, hexaflumuron or hydramethylnon.

Preferably, the pesticide is sodium molybdate which is inorganic salt, the inorganic salt medicine is not easy to decompose, and the aging period is long.

Optionally, the preservative is one or a mixture of more of sodium sorbate, potassium sorbate, sodium benzoate and nipagin, and can prevent the bait from mildewing during storage and use.

Wherein, the water-retaining agent is macromolecular water-absorbent resin, thereby ensuring the water content of the product.

In another aspect, the present invention provides a method of making the termite bait described above, comprising:

uniformly stirring the base material, the adhesive, the attractant, the insecticide, the preservative, the water-retaining agent and the quantitative water, extruding by a screw machine, tightly combining, molding by a mold, and packaging for later use.

In some preferred embodiments, the bait formed by the die is a cylinder with the diameter of 1-5 cm or a square cylinder with the side length of 1-5 cm.

The invention also provides a using method of the termite bait prepared by the method, and the termite bait is filled/embedded into a termite hazardous object; or placed in a tube, buried underground.

Compared with the prior similar products, the soft moisture-retaining termite bait has the following advantages:

cellulose is the favorite foodstuff of termites. Cellulose is a polyhydroxylated polymer which neither dissolves nor melts. The test shows that the high molecular compound cellulose ether with ether structure prepared from cellulose has better feeding effect on termites. By utilizing the characteristics of excellent wettability, adhesiveness, water-retaining property and film-forming property of cellulose ether and the preference of termites on the cellulose ether, the prepared termite bait has high water content and is favored by termites; the film has good film-forming water resistance, can resist drug loss, and has long drug timeliness; by utilizing the characteristics of excellent toughness and flexibility of the cellulose ether, the shape of the product can be changed at will when the product is used, the feeding effect of termites is enhanced, and the termite control efficiency is improved. The product of the invention is convenient to use, harmless to human and environment-friendly.

Detailed Description

For a further understanding of the invention, reference will now be made to the preferred embodiments of the invention by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the invention, and not to limit the scope of the claims.

Example 1: preparation of extrusion type soft moisture-keeping termite bait

The following materials are taken by weight: 45% of pine wood powder, 1.5% of sugar, 23% of methyl cellulose, 3% of black fungus, 2.5% of sodium molybdate, 1% of potassium sorbate, 1% of high-molecular water-absorbent resin and 23% of water by weight are uniformly stirred, extruded by a screw machine, tightly combined, molded into a cylinder with the diameter of 3 cm by a die and packaged for later use.

Example 2: preparation of extrusion type soft moisture-keeping termite bait

The following materials are taken by weight: 40% of wolfsbane grass powder, 2% of sugar, 20% of methyl cellulose, 4% of black fungus, 3% of sodium molybdate, 2% of sodium sorbate, 2% of high-molecular water-absorbent resin and 27% of water by weight are uniformly stirred, extruded by a screw machine, tightly combined, molded into a cylinder with the diameter of 1 cm by a die and packaged for later use.

Example 3: preparation of extrusion type soft moisture-keeping termite bait

The following materials are taken by weight: 61% of pine wood powder, 1% of sugar, 15% of methyl cellulose, 2% of black fungus, 2% of sodium molybdate, 1% of sodium benzoate, 1% of high-molecular water-absorbent resin and 17% of water by weight, uniformly stirring, extruding by a screw machine, tightly combining, forming into a cylinder with the diameter of 5 cm by a die, and packaging for later use.

Example 4: preparation of extrusion type soft moisture-keeping termite bait

The following materials are taken by weight: 50% of bagasse powder, 2% of sugar, 25% of sodium carboxymethylcellulose, 1% of mushroom, 1% of foscarnet, 3% of nipagin, 0.5% of high-molecular water-absorbent resin and 17.5% of water by weight are uniformly stirred, extruded by a screw machine, tightly combined, molded into a square column body with the diameter of 3 cm by a die and packaged for later use.

Example 5: preparation of extrusion type soft moisture-keeping termite bait

The following materials are taken by weight: 40% of paper fiber powder, 1% of sugar, 25% of hydroxypropyl cellulose, 5% of termite nest powder, 5% of hexaflumuron, 1% of potassium sorbate, 3% of high-molecular water-absorbent resin and 20% of water by weight are uniformly stirred, extruded by a screw machine, tightly combined, molded into a square column with the diameter of 4 cm by a die and packaged for later use.

Example 6: preparation of extrusion type soft moisture-keeping termite bait

The following materials are taken by weight: 40% of wolfsbane grass powder, 1.5% of sugar, 30% of methyl cellulose, 2% of black fungus, 2% of sodium molybdate, 1% of sodium sorbate, 1% of high-molecular water-absorbent resin and 22.5% of water by weight are uniformly stirred, extruded by a screw machine, tightly combined, molded into a square column body with the diameter of 5 cm by a die and packaged for later use.

Example 7: preparation of extrusion type soft moisture-keeping termite bait

The following materials are taken by weight: 40% of pine wood powder, 1% of sugar, 18% of methyl cellulose, 2% of black fungus, 2% of sodium molybdate, 1% of sodium sorbate, 1% of high-molecular water-absorbent resin and 35% of water by weight are uniformly stirred, extruded by a screw machine, tightly combined, formed into a cylinder with the diameter of 2 cm by a die and packaged for later use.

Example 8: use method of extrusion type soft moisture-retention termite bait

The prepared termite bait is unpacked and filled or embedded into termite hazardous objects. The termite bait contains moisture and has good moisture retention and the characteristics of excellent toughness and flexibility of cellulose ether, so that the termite bait has good plasticity, can fill up the decayed space in a termite harm object, and prevents the termite from further decaying.

Example 9: use method of extrusion type soft moisture-retention termite bait

The prepared termite bait is unpacked and packed, and is placed in a tubular object and buried underground. The termite bait has good film-forming and water-proofing properties, can resist drug loss, has long drug timeliness, and thus can achieve a long-term protection effect.

Example 10: the trapping and killing effect analysis of the extruded soft moisture-keeping termite bait agent

In order to determine the trapping and killing effect and indoor toxicity of the extruded termite control bait agent on the termites, a certain university of agriculture and forestry was entrusted with relevant indoor experiments, and the results are as follows.

Experimental report for measuring trapping and killing effect and indoor toxicity of extrusion type termite control bait agent on scattered termites

1 materials and methods

1.1 test Termite

And D, scattered termites. It was kept in a polyethylene container in the laboratory and fed with pine blocks for 2 weeks under conditions of 25. + -. 1 ℃ temperature, 80. + -. 5% relative humidity and dark shade, and then tested.

1.2 test Agents

Extruded soft moisturizing termite bait manufacturing batch group (A, B, C), prepared according to the composition in example 1.

1.3 Experimental methods

Washing a certain amount of fine sand passing through a 250 μm sieve (60 mesh), and drying in a constant temperature drying oven at 80 deg.C for 24 h. The treated fine sand was spread evenly on a petri dish with a thickness of 2mm and moistened with water. A cover glass with the same size is respectively placed on the soil layer of each culture dish, and 1.0g of each test bait is respectively placed on the cover glass. 100 healthy termites were put into each dish and spread evenly on the sand surface. All dishes tested were placed in the absence of light at a temperature of 25. + -. 1 ℃ and a relative humidity of 70. + -. 5%. And observing every 24h, observing the death condition of the termites under low light, and observing and recording the time of all the termites dying. The death criteria is that all parts of the termite body are lightly touched by a writing brush, and the termite can not normally move within 10s and is regarded as dead. Dead termites were removed and attention was paid to keep the sand wet to replenish water in time. Each treatment was repeated 3 times. After the experiment was completed, the weight of the bait remaining for each treatment was weighed and recorded, and the amount of termite feed to the three groups of bait was calculated.

During the examination, if the bait was consumed and the termites did not die, the experiment was continued with each addition of 0.5g bait.

Comparison: pine wood blocks were used as controls.

2 results of the experiment

TABLE 1 trapping and killing effect of different bait compositions on Reticulitermes formosanus

TABLE 2 cumulative daily mortality of Reticulitermes

TABLE 3 feeding amount of termites on different baits

Therefore, the extruded termite control bait has better trapping and killing effect and indoor toxicity on termites.

The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An extruded, soft, moisture-retaining termite bait, comprising by weight:

40% -64% of base material;

15% -30% of adhesive;

1 to 5 percent of attractant;

1 to 5 percent of insecticide;

1 to 3 percent of preservative;

0.5 to 3 percent of water-retaining agent;

17 to 35 percent of water.

2. The termite bait of claim 1, wherein said bait comprises by weight:

45% -50% of base material;

20 to 25 percent of adhesive;

2 to 4 percent of attractant;

2 to 3 percent of insecticide;

1 to 2 percent of preservative;

1 to 2 percent of water-retaining agent;

20 to 27 percent of water.

3. The termite bait of claim 1 wherein the substrate is one or a mixture of pine wood flour, pennisetum alopecuroides flour, bagasse powder, paper fiber powder, or sugar.

4. The termite bait of claim 3, wherein said bait comprises by weight:

45% of base material;

1.5% of sugar;

23% of an adhesive;

3% of attractant;

2.5% of pesticide;

1% of preservative;

1% of water-retaining agent;

23 percent of water.

5. The termite bait of claim 1, wherein the binder is one or a mixture of methylcellulose, hydroxymethylcellulose or hydroxypropylcellulose of a cellulose ether.

6. The termite bait of claim 1 wherein the attractant is one or a mixture of black fungus, shiitake mushroom or termite nest powder.

7. The termite bait of claim 1, wherein the insecticide is one or a mixture of mineral salt, shrinkstone, hexaflumuron or hydramethylnon.

8. The termite bait of claim 1, wherein the preservative is one or a mixture of sodium sorbate, potassium sorbate, sodium benzoate, or paraben.

9. The termite bait of claim 1 wherein said water retaining agent is a polymeric water absorbent resin.

10. A method of making the termite bait of claim 1, comprising:

11. The preparation method of claim 10, wherein the bait after the mold forming is a cylindrical body with a diameter of 1-5 cm or a square cylindrical body with a side length of 1-5 cm.

12. A method of using the termite bait prepared in claim 10, wherein the termite bait is filled/embedded in a termite pest; or placed in a tube, buried underground.