Natural lipid composition impermeable to insects and applications

Abstract

The application discloses a natural lipid composition which insects cannot pass through and application thereof. The natural lipid composition comprises rosin, castor oil, linseed oil and beeswax. The components in the composition are all pollution-free and degradable, which is beneficial to environmental protection and hardly causes harm to the environment and organisms. Moreover, the natural lipid composition has low production cost, raw materials are obtained and the process is simple, and has the prospect of large-scale production.

Description

Technical Field

[0001] This invention relates to the fields of environmental protection technology and pest control, and in particular to a natural lipid composition that insects cannot pass through, its preparation method and application. Background Technology

[0002] Pests are a major global problem, causing billions of dollars in losses annually. However, the use of chemical pesticides to control pests can pollute the environment, exacerbating this problem. With the development of science and technology and increased environmental awareness, pest control is shifting from chemical control to environmentally friendly and sustainable methods. Reducing the use of chemical pesticides has become a global consensus, and the areas implementing green pest control are expanding. Furthermore, research has revealed that large areas of forests in my country are threatened by pests, resulting in severe losses. Therefore, technological control and pest mitigation are necessary, leading to the idea of ​​inventing a highly efficient and environmentally friendly reptile barrier using a resin-based material.

[0003] Investigations have revealed that existing insect-repellent adhesives on the market cause harm to insects, plants, and other organisms; leave difficult-to-clean residues; require large quantities; are costly; and have an unpleasant odor. Therefore, an effective physical control method is needed to ensure that insects and trees are not harmed. Summary of the Invention

[0004] The primary objective of this invention is to overcome the shortcomings and deficiencies of the prior art and to provide the application of natural substances in insect control.

[0005] A second object of the present invention is to provide an insect-repellent composition composed of natural substances.

[0006] A third objective of this invention is to provide a natural lipid composition that insects cannot pass through, as well as its preparation method and application.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] An insect repellent composition comprising at least two of rosin, castor oil, and linseed oil.

[0009] Furthermore, the rosin in the composition comprises 33% to 74.1% by mass; even further, it comprises 33% to 50%.

[0010] Furthermore, the castor oil constitutes 11.1% to 50% by mass in the composition; even more specifically, it constitutes 33% to 50%.

[0011] Furthermore, the flaxseed oil constitutes 11.1% to 50% by mass in the composition; even more specifically, it constitutes 33% to 50%.

[0012] Furthermore, when the above-mentioned insect repellent composition includes castor oil and linseed oil, it also includes beeswax;

[0013] Furthermore, the castor oil in the composition comprises 11.1% to 34% by mass, the flaxseed oil in the composition comprises 11.1% to 34% by mass, and the beeswax in the composition comprises 3.7% to 34% by mass; even further, the castor oil in the composition comprises 25% to 34% by mass, the flaxseed oil in the composition comprises 25% to 34% by mass, and the beeswax in the composition comprises 25% to 34% by mass; still further, the mass ratio of the castor oil, flaxseed oil, and beeswax is 1:1:1.

[0014] Furthermore, when the above-mentioned insect repellent composition includes rosin, castor oil, and linseed oil, it also includes beeswax;

[0015] Furthermore, the rosin in the composition comprises 25% to 74.1% by mass, the castor oil comprises 11.1% to 25% by mass, the linseed oil comprises 11.1% to 25% by mass, and the beeswax comprises 3.7% to 25% by mass; even further, the mass ratio of the rosin, castor oil, linseed oil, and beeswax is 1:1:1:1 or 20:3:3:1.

[0016] The method for preparing the above-mentioned insect-repellent composition includes the following steps:

[0017] Mix the components of the insect repellent composition thoroughly.

[0018] Furthermore, heating can be used to assist in mixing; even further, the heating temperature is 80–120°C.

[0019] Application of the above-mentioned insect-repellent composition in insect control.

[0020] Furthermore, the insects mentioned include crawling insects.

[0021] A natural lipid composition that insects cannot pass through, comprising rosin, castor oil, linseed oil, and beeswax.

[0022] Furthermore, the mass ratio of the rosin, castor oil, linseed oil, and beeswax is 20:3:3:1.

[0023] The method for preparing the above-mentioned insect-repellent composition includes the following steps:

[0024] Mix rosin, castor oil, flaxseed oil and beeswax together.

[0025] Furthermore, heating can be used to assist in mixing; even further, the heating temperature is 80–120°C.

[0026] The application of the above-mentioned natural lipid compositions that insects cannot penetrate in insect control.

[0027] Furthermore, the insects and worms mentioned include reptiles.

[0028] The present invention has the following advantages and effects compared with the prior art:

[0029] (1) This invention develops a novel environmentally friendly insect-repellent composition and a natural lipid composition that insects cannot pass through. All components in the composition are pollution-free and biodegradable, which is beneficial to environmental protection and causes almost no harm to the environment and organisms.

[0030] (2) The insect-repellent composition of the present invention and the natural lipid composition that insects cannot pass through have low production costs, readily available raw materials, and simple processes; they have the prospect of large-scale production. Attached Figure Description

[0031] Figure 1 This is a product diagram of the resin mixture used in Example 2.

[0032] Figure 2 This is a schematic diagram of the experimental setup in Example 2.

[0033] Figure 3 This is a graph showing the statistical results of insect behavior in Example 2. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto. Test methods in the following embodiments that do not specify specific experimental conditions are generally performed under conventional experimental conditions or according to the manufacturer's recommended experimental conditions. Unless otherwise specified, the materials and reagents used are commercially available.

[0035] Example 1

[0036] (1) Experimental materials: petri dishes, black-headed sour ants, cabbage white butterfly larvae, potato beetles, acrylic rings, rosin, linseed oil, beeswax, castor oil.

[0037] (2) Experimental index setting: The control efficiency is defined as the control excellence, with a total score of 10, consisting of four parts: insect control effect, continuous effect, and the weighted values ​​of these four components are 0.7 and 0.3, respectively. The final control excellence value is obtained by the total score after weighting these factors.

[0038] Formula for excellent pest control performance: Insect control effect * 0.7 + Duration effect * 0.3

[0039] (3) Experimental design:

[0040] Synergistic effect verification experiments were conducted based on different components and component ratios. Specific groupings are as follows:

[0041] Category 1, Single Component: The four components—beeswax, castor oil, linseed oil, and rosin—are heated to 100°C and then cooled before being individually applied to an acrylic ring.

[0042] Category 2, Two-component: a mixture of beeswax and castor oil, a mixture of beeswax and linseed oil, a mixture of beeswax and rosin, a mixture of castor oil and linseed oil, a mixture of castor oil and rosin, and a mixture of linseed oil and rosin. They are all mixed in a 1:1 mass ratio. The mixture is heated (100°C) to facilitate mixing. After cooling, each mixture is applied to an acrylic ring.

[0043] Category 3, three components: a mixture of beeswax, linseed oil and castor oil; a mixture of beeswax, castor oil and rosin; a mixture of castor oil, linseed oil and rosin. They are all mixed in a mass ratio of 1:1:1. During mixing, heating (100℃) facilitates the mixing of the substances. After cooling, each mixture is applied to an acrylic ring.

[0044] Category 4, four components: beeswax, linseed oil, castor oil, and rosin are mixed in a mass ratio of 1:1:1:1. Heating (100℃) facilitates mixing. After cooling, the mixture is applied to an acrylic ring. Alternatively, rosin, linseed oil, castor oil, and beeswax are mixed in a mass ratio of 20:3:3:1. Heating (100℃) facilitates mixing. After cooling, the mixture is applied to an acrylic ring.

[0045] The total mass of the individual components or mixtures obtained in the final products of the above groups is the same; the mass of each group coated on the acrylic ring is also the same, which is 2 grams.

[0046] Control group: Acrylic rings without any coating were used as the control group. The results of the control group showed that the acrylic rings had no effect on the behavior of the insects.

[0047] Acrylic rings were placed in the center of a petri dish. Ten insects of each of three species—black-headed sour ants, cabbage white butterfly larvae, and potato beetles—were placed inside the acrylic rings. The insects' behavior and ability to escape the product-coated rings were observed over 48 hours, and the insect control rate was recorded. Each group was repeated three times, and the average control rate was calculated. The control rate was calculated using the formula: Control rate = Number of insects in the ring at each recorded time point / Initial number of insects in the ring.

[0048] The insect control effect was scored by the control rate, with the scoring criteria shown in Table 1 and the scoring results shown in Table 2. The sustained effect was scored by the change in the control rate over 48 hours, with the scoring criteria shown in Table 3 and the scoring results shown in Table 4. The final control excellence rating is shown in Table 5.

[0049] Table 1 Insect Repellency Evaluation Criteria

[0050]

[0051] Table 2. Control rate and corresponding insect control effect score results

[0052]

[0053] Table 3 Scoring Criteria for Lasting Effects

[0054]

[0055] Table 4. Control rate and corresponding insect control effect score results

[0056]

[0057] Table 5 Results of Prevention and Control Excellence

[0058]

[0059] According to the data in Table 1, among the two-component groups, the groups of rosin and castor oil, rosin and flaxseed oil, and castor oil and flaxseed oil showed certain control effects, which inhibited insects from crawling out of the circular ring. However, the other two-component groups did not have a control effect. This may be because the concentration of each substance after mixing is lower than that of the single component, thus losing the control effect.

[0060] In the three-component group, the castor oil, flaxseed oil, and beeswax group (average control rate: 83%) showed a significantly better control rate than the two-component castor oil and flaxseed oil group (average control rate: 29%). In the single-component experiment, the beeswax group did not show any control effect (average control rate: 0%). It can be seen that there is a certain synergistic effect among castor oil, flaxseed oil, and beeswax, which can significantly improve the control rate.

[0061] Among the four-component groups, the rosin, castor oil, linseed oil, and beeswax (1:1:1:1) group showed a higher control effect than the three-component group (average control rate: 92%), and the results were superior to the simple sum of the single-component rosin group (average control rate: 11%), castor oil group (average control rate: 15%), linseed oil group (average control rate: 15%), and beeswax group (average control rate: 0%). The rosin, castor oil, linseed oil, and beeswax (20:3:3:1) group showed the best control rate, with insects unable to crawl out of the circle.

[0062] In addition, as shown in Table 4, the combination of rosin, castor oil, linseed oil and beeswax (20:3:3:1) had the best sustained effect; it could prevent insects from crawling out of the ring even after 48 hours.

[0063] Example 2

[0064] Based on the results of Example 1, the inventors obtained a resin mixture that insects cannot crawl through, comprising rosin, castor oil, linseed oil, and beeswax; its product image is shown below. Figure 1 As shown; the rosin, castor oil, linseed oil and beeswax are mixed in a mass ratio of 20:3:3:1, and heating can be used to assist in mixing; this resin mixture is used for testing in this embodiment.

[0065] (1) Experimental materials: circular grid paper, acrylic rings, pins, candy, and resin mixture.

[0066] (2) Test sites selected: Zhongshan Wetland Park and Zhuhai Huitong Ancient Village Tourist Area.

[0067] (3) Experimental steps:

[0068] 1) Upon arrival at the test site, systematically select 10 target trees from the test site;

[0069] 2) Use pins to attach two identical circular graph paper pieces to the tree at the same height (approximately 3m from the ground);

[0070] 3) Coat the surface of one acrylic ring with 2 grams of the above resin mixture, and do not perform any operation on the other acrylic ring, so as to compare the test effect of the resin mixture;

[0071] 4) Use pins to attach two acrylic rings to the concentric points of two sheets of graph paper of equal height;

[0072] 5) Attach a candy to the center of each of the two circular graph papers (the same center as the acrylic ring); after attaching, record the insect behavior on the graph papers for 5 hours; repeat the experiment a total of 100 times on the 10 target trees mentioned above. The experimental setup is as follows: Figure 2 As shown.

[0073] (4) Observe the test results:

[0074] Insect behavior was recorded using a camera, revealing that: Circular grid paper without resin coating was teeming with insects (a large number of grids contained insects). Insects easily crossed the acrylic rings without resin coating and reached the candies, carrying and eating them. They could easily travel back and forth across the acrylic rings. However, on the circular grid paper coated with resin, only a small number of insects were active, limited to the area outside the acrylic rings. Insects failed to cross the acrylic rings coated with resin (zero insects entered the rings). Almost all insects returned before or after touching the resin-coated rings, lingering briefly before returning. The test results showed that the resin coating had an extremely high control rate. Insect behavior was further divided into two criteria: ① Insects entered the rings (control group); ② Insects approached the insect barrier (passed through the circular grid paper), but their pheromones were affected, preventing them from entering the rings (experimental group).

[0075] The number of insects that entered the circular grid paper in the experimental group and the number of insects that entered the acrylic ring in the control group are shown in Table 8. Figure 3 As shown.

[0076] Table 8

[0077]

[0078] The experimental results in Table 8 show that there is a significance level of 0.01 between the control group and the experimental group (t = 30.657, p < 0.0001); the average number of insects in the control group (the number of insects that entered the acrylic ring) (36.01) is significantly higher than the average number of insects in the experimental group (the number of insects that entered the circular grid paper) (0.26).

[0079] The experimental group showed significant differences from the control group, and the tested resin mixture was highly effective in preventing insects from climbing up the tree trunk from the soil and damaging the trees.

[0080] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. An insect-repellent composition, characterized in that, It is made from a mixture of rosin, castor oil, linseed oil and beeswax, wherein the rosin accounts for 25% to 74.1% of the composition by mass, the castor oil accounts for 11.1% to 25% of the composition by mass, the linseed oil accounts for 11.1% to 25% of the composition by mass, and the beeswax accounts for 3.7% to 25% of the composition by mass.

2. The insect-repellent composition according to claim 1, characterized in that, The mass ratio of rosin, castor oil, linseed oil and beeswax is 20:3:3:

1.

3. The method for preparing the insect-repellent composition according to claim 1 or 2, characterized in that, Includes the following steps: Mix the components of the insect repellent composition thoroughly.

4. The use of the insect-repellent composition according to claim 1 or 2 in insect control.

5. The application according to claim 4, characterized in that, The insects mentioned include crawling insects.

Images