Trunk whitening agent with rat and rabbit damage prevention effect and preparation method thereof

Abstract

The invention discloses a tree trunk whitening agent with rat and rabbit damage prevention effects. The tree trunk whitening agent comprises the following components in parts by weight: 3-6 parts of lime sulfur, 3-6 parts of table salt, 1-3 parts of vegetable oil, 1-3 parts of soybean milk, 0.3-0.7 part of chili powder, 20-40 parts of quick lime and the balance of water. The trunk whitening agent has a corrosion effect on various germs, worm eggs and overwintering insect pests, and can effectively prevent animals such as rats and rabbits from biting trunks.

Description

Technical Field

[0001] This invention relates to the field of ecological agricultural and forestry protection technology, specifically to a tree trunk whitewash agent with rodent control function and its preparation method. Background Technology

[0002] In landscaping, tree maintenance is crucial, and whitewashing tree trunks is a common and effective measure. Whitewashing not only kills bacteria and insects but also helps the trunk resist adverse environmental conditions. However, in recent years, rodent and rabbit infestations have become major biological threats to forestry ecosystems. Especially during winter and spring, when food is scarce, rodents and rabbits gnaw on young trees and bite the bark, disrupting the vascular system of the bark. Damaged areas become susceptible to pathogens, often leading to trunk diseases, internal rot, weakened trees, and even death, severely impacting afforestation and orchard yields. The serious damage caused by rodents and rabbits to forests (especially young trees) stems from two main reasons: first, to meet their basic food needs; and second, because their teeth grow throughout their lives, they must constantly gnaw on hard objects to wear them down. Even worse, rodents can climb fruit trees and directly eat the fruit, causing not only direct economic losses but also potentially spreading diseases and reducing orchard yields. Current tree trunk whitewashes are not very effective in preventing rodent (rabbit) damage.

[0003] Currently, while there are many methods for controlling rodent and rabbit pests, each has significant limitations. Chemical control, such as spraying pesticides or large-scale application of rodenticides, is common, but it easily causes environmental pollution, threatens the safety of non-target organisms, disrupts the ecological balance, and is detrimental to wildlife protection. Furthermore, if poisoned rodents and rabbits are eaten by natural predators, they may suffer secondary poisoning. Physical barriers, such as wrapping tree trunks with wire mesh or protective fences, are effective, but are complex to operate, labor-intensive, time-consuming, and costly, making large-scale implementation difficult. Mechanical trapping, such as widely deploying rodent traps in orchards, can also be used, but this method carries the risk of accidentally injuring people entering the orchard, making safety management challenging. Summary of the Invention

[0004] One of the objectives of this invention is to provide a tree trunk whitewash that has the effect of preventing rodent and rabbit damage. This tree trunk whitewash has a corrosive effect on various pathogens and overwintering insect eggs, and can also effectively prevent rodents and rabbits from gnawing on the tree trunk.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tree trunk whitewash agent with rodent and rabbit repellent properties comprises the following components by weight: 3-6 parts lime-sulfur mixture, 3-6 parts salt, 1-3 parts vegetable oil, 1-3 parts soy milk, 0.3-0.7 parts chili powder, 20-40 parts quicklime, and the remainder being water.

[0007] Preferably, the product comprises the following components in parts by weight: 4-5 parts lime-sulfur mixture, 4-5 parts salt, 1.5-2.5 parts vegetable oil, 1.5-2.5 parts soy milk, 0.4-0.6 parts chili powder, 25-35 parts quicklime, and the remainder being water.

[0008] Preferably, the product comprises the following components in parts by weight: 5 parts lime-sulfur mixture, 5 parts salt, 2 parts vegetable oil, 2 parts soy milk, 0.5 parts chili powder, 30 parts quicklime, and the remainder being water.

[0009] Preferably, one part of the lime-sulfur mixture is prepared by heating and mixing 5-7 parts quicklime, 8-12 parts sulfur powder and 60-90 parts water.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] Adding chili powder to the whitewash works because it contains capsaicin, a compound highly sensitive to mice and rabbits. When these animals gnaw on the tree trunk, the intense burning sensation in their mouths deters them from further nibbling. They may even avoid nibbling on any tree trunk they see that is also white. Salt is also added to the whitewash to adjust its pH, making it more suitable for the plant surface environment. Furthermore, the sodium hydroxide (Na₂O) formed when the salt dissolves in water... + and Cl + This process enhances the permeability of the whitewash solution, helping other components in the whitewash adhere better to the tree trunk surface and increasing its adhesion, thus preventing peeling. The addition of edible oil and soy milk significantly increases the viscosity of the whitewash, reducing its fluidity during application. The protective film formed by the edible oil and soy milk also prevents cracking of the tree bark caused by temperature differences between day and night in winter, strengthening the bond between the whitewash and the bark and preventing peeling. Simultaneously, the vegetable oil forms a dense protective film on the tree trunk, resisting rain erosion, thereby prolonging the adhesion time of the whitewash and achieving a long-lasting effect of preventing rodent and rabbit damage.

[0012] Compared with existing physical protection or chemical control methods for rodent control, this invention is an environmentally friendly and long-lasting method for repelling rodents. While preventing rodent damage to forest trees, it does not harm animals such as rats and rabbits, and plays a role in maintaining the balance of the ecosystem.

[0013] The lime sulfur mixture in whitewash has a corrosive effect on various pathogens, overwintering insect eggs, and trunk-boring pests, thereby achieving the purpose of killing insects, preventing pests, and killing bacteria. In addition, salt also has a bactericidal function, so the whitewash can not only protect fruit trees, but also effectively prevent the occurrence and spread of diseases, ensuring the healthy growth of the trees.

[0014] Quicklime can enhance the cold resistance of trees and prevent frost damage. The white color of quicklime reflects sunlight, reducing the amount of sunlight hitting the trunk and lowering its temperature. In autumn and winter, it can accelerate the tree's entry into dormancy, while in spring it can slow down the tree's awakening from dormancy, thus delaying budding and flowering and reducing the risk of early spring frost damage. At the same time, quicklime reflects sunlight, reducing daytime trunk temperature rise and minimizing diurnal temperature variations, making the bark less prone to cracking and further preventing the whitewash from peeling off. Additionally, since pests dislike white, clean surfaces, whitewashing the trunk discourages soil-dwelling pests from climbing the tree, thus providing both sterilization and insect control.

[0015] The second objective of this invention is to provide a method for preparing a tree trunk whitewash that has the effect of preventing rodent and rabbit damage. This tree trunk whitewash has a corrosive effect on various pathogens and overwintering insect eggs, and can also effectively prevent animals such as rats and rabbits from gnawing on the tree trunk.

[0016] A method for preparing the tree trunk whitewash in the above-mentioned technical solution includes the following steps:

[0017] Step 1: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; mix the sulfur powder with water at 45-50℃ to form a paste-like sulfur slurry for later use; boil the remaining water in a pot, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot, and then heat and boil for 45-50 minutes before cooling and filtering to obtain lime-sulfur mixture;

[0018] Step 2: Prepare 3-6 parts lime sulfur mixture, 3-6 parts salt, 1-3 parts vegetable oil, 1-3 parts soy milk, 0.3-0.7 parts chili powder, 20-40 parts quicklime, and the remainder is water;

[0019] Step 3: First, put the lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution;

[0020] Step 4: Add salt, vegetable oil, soy milk and chili powder to the mixture one by one and stir well.

[0021] Preferably, soybeans are soaked in water until thoroughly soaked, ground into a paste, filtered to remove the soybean residue, boiled, and cooled to prepare soy milk.

[0022] Preferably, in step 1, an iron pot or earthenware pot is used to boil water.

[0023] Preferably, the lime-sulfur mixture obtained in step 1 has a Baume degree of 25-28.

[0024] In the above technical solution, water is added all at once during the preparation of the lime-sulfur mixture, reducing the need for additional boiling and repeated water addition as in traditional methods. Furthermore, the method of adding quicklime first and then sulfur reduces the risk of liquid overflow during preparation. Moreover, the whitewash formulation prepared by the above method is low-cost, environmentally friendly, and pollution-free, making it suitable for widespread application. Attached Figure Description

[0025] Figure 1 For fruit trees coated with the whitewash of this invention in the experimental area of ​​Kuancheng County, Chengde City;

[0026] Figure 2 This is a schematic diagram of the application of the whitening agent of the present invention on fruit trees. Detailed Implementation

[0027] The technical solutions obtained in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] The term "chili powder" as used in this article refers to chili peppers that have been ground into powder with a particle size of not less than 40 mesh, preferably 60 mesh or larger, so that it can be thoroughly and evenly mixed with the whitening agent. Chili peppers are annual or short-lived perennial herbaceous or shrubby plants belonging to the genus Capsicum in the family Solanaceae. They are widely cultivated worldwide and contain abundant capsaicin.

[0029] The term "soybean" refers to an annual herbaceous plant belonging to the genus *Glycine* in the family Leguminosae, growing 30-90 cm tall. The stem is stout, erect, and densely covered with long, stiff, brown hairs. The seeds are oval or nearly spherical with a smooth seed coat. Soybean seeds contain 35%–40% protein, making them a crop rich in plant protein.

[0030] The term "quicklime" refers to lime that is white or grayish-white in color, and that is uniform in size, moderately hard, and not easily broken.

[0031] Example 1

[0032] 1. Preparation of lime-sulfur mixture: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; heat the water to 50°C in an iron pot or earthenware pot, then take out some water and mix it with the sulfur powder to make a paste-like sulfur slurry for later use; heat the remaining water to boiling, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot while stirring to prevent the liquid from splashing and causing burns; finally, heat to boiling for 50 minutes, and the cooled and filtered solution is the lime-sulfur mixture with a Baume degree of 25-28.

[0033] 2. Preparation of soy milk: Soak soybeans in water until fully hydrated, then grind them into a paste. Filter out the soy pulp, boil the paste, and let it cool to make soy milk.

[0034] 3. Material preparation: Prepare 4 parts lime sulfur mixture, 4 parts salt, 1.5 parts vegetable oil, 3 parts soy milk, 0.3 parts chili powder, 25 parts quicklime, and 110 parts water;

[0035] 4. Preparation of whitewash: First, put lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; then add salt, vegetable oil, soy milk and chili powder one by one into the mixed solution and stir evenly to obtain the whitewash.

[0036] Example 2

[0037] 1. Preparation of lime-sulfur mixture: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; heat the water to 50°C in an iron pot or earthenware pot, then take out some water and mix it with the sulfur powder to make a paste-like sulfur slurry for later use; heat the remaining water to boiling, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot while stirring to prevent the liquid from splashing and causing burns; finally, heat to boiling for 50 minutes, and the cooled and filtered solution is the lime-sulfur mixture with a Baume degree of 25-28.

[0038] 2. Preparation of soy milk: Soak soybeans in water until fully hydrated, then grind them into a paste. Filter out the soy pulp, boil the paste, and let it cool to make soy milk.

[0039] 3. Material preparation: Prepare 5 parts lime sulfur mixture, 5 parts salt, 2 parts vegetable oil, 2 parts soy milk, 0.5 parts chili powder, 30 parts quicklime, and 100 parts water;

[0040] 4. Preparation of whitewash: First, put lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; then add salt, vegetable oil, soy milk and chili powder one by one into the mixed solution and stir evenly to obtain the whitewash.

[0041] Example 3

[0042] 1. Preparation of lime-sulfur mixture: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; heat the water to 50°C in an iron pot or earthenware pot, then take out some water and mix it with the sulfur powder to make a paste-like sulfur slurry for later use; heat the remaining water to boiling, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot while stirring to prevent the liquid from splashing and causing burns; finally, heat to boiling for 50 minutes, and the cooled and filtered solution is the lime-sulfur mixture with a Baume degree of 25-28.

[0043] 2. Preparation of soy milk: Soak soybeans in water until fully hydrated, then grind them into a paste. Filter out the soy pulp, boil the paste, and let it cool to make soy milk.

[0044] 3. Material preparation: Prepare 6 parts lime sulfur mixture, 6 parts salt, 3 parts vegetable oil, 1 part soy milk, 0.6 parts chili powder, 40 parts quicklime, and 95 parts water;

[0045] 4. Preparation of whitewash: First, put lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; then add salt, vegetable oil, soy milk and chili powder one by one into the mixed solution and stir evenly to obtain the whitewash.

[0046] Example 4

[0047] 1. Preparation of lime-sulfur mixture: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; heat the water to 50°C in an iron pot or earthenware pot, then take out some water and mix it with the sulfur powder to make a paste-like sulfur slurry for later use; heat the remaining water to boiling, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot while stirring to prevent the liquid from splashing and causing burns; finally, heat to boiling for 50 minutes, and the cooled and filtered solution is the lime-sulfur mixture with a Baume degree of 25-28.

[0048] 2. Preparation of soy milk: Soak soybeans in water until fully hydrated, then grind them into a paste. Filter out the soy pulp, boil the paste, and let it cool to make soy milk.

[0049] 3. Material preparation: Prepare 3 parts lime sulfur mixture, 3 parts salt, 2.5 parts vegetable oil, 2.5 parts soy milk, 0.4 parts chili powder, 35 parts quicklime, and 100 parts water;

[0050] 4. Preparation of whitewash: First, put lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; then add salt, vegetable oil, soy milk and chili powder one by one into the mixed solution and stir evenly to obtain the whitewash.

[0051] Comparative Example 1

[0052] 1. Preparation of lime-sulfur mixture: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; heat the water to 50°C in an iron pot or earthenware pot, then take out some water and mix it with the sulfur powder to make a paste-like sulfur slurry for later use; heat the remaining water to boiling, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot while stirring to prevent the liquid from splashing and causing burns; finally, heat to boiling for 50 minutes, and the cooled and filtered solution is the lime-sulfur mixture with a Baume degree of 25-28.

[0053] 2. Preparation of soy milk: Soak soybeans in water until fully hydrated, then grind them into a paste. Filter out the soy pulp, boil the paste, and let it cool to make soy milk.

[0054] 3. Material preparation: Prepare 5 parts lime sulfur mixture, 5 parts salt, 2.5 parts vegetable oil, 2 parts soy milk, 30 parts quicklime, and 100 parts water;

[0055] 4. Preparation of whitewash: First, put lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; then add salt, vegetable oil and soy milk one by one into the mixed solution and stir evenly to obtain the whitewash.

[0056] Comparative Example 2

[0057] 1. Preparation of lime-sulfur mixture: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; heat the water to 50°C in an iron pot or earthenware pot, then take out some water and mix it with the sulfur powder to make a paste-like sulfur slurry for later use; heat the remaining water to boiling, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot while stirring to prevent the liquid from splashing and causing burns; finally, heat to boiling for 50 minutes, and the cooled and filtered solution is the lime-sulfur mixture with a Baume degree of 25-28.

[0058] 2. Preparation of soy milk: Soak soybeans in water until fully hydrated, then grind them into a paste. Filter out the soy pulp, boil the paste, and let it cool to make soy milk.

[0059] 3. Material preparation: Prepare 6 parts lime sulfur mixture, 5 parts salt, 2 parts soy milk, 0.5 parts chili powder, 30 parts quicklime, and 100 parts water;

[0060] 4. Preparation of whitewash: First, put lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; then add salt, soy milk and chili powder one by one into the mixed solution and stir evenly to obtain the whitewash.

[0061] Comparative Example 3

[0062] 1. Preparation of lime-sulfur mixture: Prepare 6 parts quicklime, 10 parts sulfur powder and 75 parts water; heat the water to 50°C in an iron pot or earthenware pot, then take out some water and mix it with the sulfur powder to make a paste-like sulfur slurry for later use; heat the remaining water to boiling, add quicklime and stir evenly, continue heating to boiling, then slowly pour the paste-like sulfur slurry into the pot while stirring to prevent the liquid from splashing and causing burns; finally, heat to boiling for 50 minutes, and the cooled and filtered solution is the lime-sulfur mixture with a Baume degree of 25-28.

[0063] 2. Preparation of soy milk: Soak soybeans in water until fully hydrated, then grind them into a paste. Filter out the soy pulp, boil the paste, and let it cool to make soy milk.

[0064] 3. Material preparation: Prepare 5 parts lime sulfur mixture, 6 parts salt, 2 parts vegetable oil, 0.5 parts chili powder, 35 parts quicklime, and 100 parts water;

[0065] 4. Preparation of whitewash: First, put lime-sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; then add salt, vegetable oil and chili powder one by one into the mixed solution and stir evenly to obtain the whitewash.

[0066] Test case

[0067] like Figures 1 to 2 As shown, at the end of November, when the temperature was close to zero, whitewashes prepared in Examples 1-4 and Comparative Examples 1-3 were applied to 5250 trees and fruit trees in the experimental area of ​​Kuancheng County, Chengde City. Each example covered 750 trees, with the applied trees interleaved (i.e., not separated into individual blocks for better comparison). The coating height on the tree trunks was 1.2 m-1.5 m, and on the fruit trees, it extended above the first branch point. In March of the following year, a survey of tree damage by rodents and rabbits revealed that 14, 10, 9, and 12 trees coated with whitewashes from Examples 1-4 were damaged, respectively, while 35, 16, and 15 trees coated with whitewashes from Comparative Examples 1-3 were damaged, respectively. Comparing the peeling and flaking of the whitewash coating, the areas coated with whitewashes from Comparative Examples 2-3 showed relatively more severe peeling.

[0068] The whitewash prepared in Examples 1-4 and Comparative Examples 1-3 should be prepared and used immediately to avoid storing and using the whitewash. This is to prevent the water in the whitewash from evaporating, which would cause the whitewash to be too thick when applied to the tree trunk, making it easy for the bark to peel off and affecting the protective effect.

[0069] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. All modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this invention should still be covered by the claims of this invention.

Claims

1. A trunk whitewash agent having a rat and hare repellent effect, characterized by comprising: a water-soluble polymer; a water-soluble organic solvent; and a water-soluble inorganic salt. The composition comprises the following components by weight: 3-6 parts of stone sulfur mixture, 3-6 parts of salt, 1-3 parts of vegetable oil, 1-3 parts of soy milk, 0.3-0.7 parts of chili powder, 20-40 parts of quicklime, and the rest is water.

2. The white-painted trunk agent having a rat and hare repellent effect according to claim 1, wherein the white-painted trunk agent is applied to the trunk of a tree. The composition comprises the following components by weight: 4-5 parts of stone sulfur mixture, 4-5 parts of salt, 1.5-2.5 parts of vegetable oil, 1.5-2.5 parts of soy milk, 0.4-0.6 parts of chili powder, 25-35 parts of quicklime, and the rest is water.

3. The white-painted agent for tree trunk according to claim 2, wherein The composition comprises the following components by weight: 5 parts of stone sulfur mixture, 5 parts of salt, 2 parts of vegetable oil, 2 parts of soy milk, 0.5 parts of chili powder, 30 parts of quicklime, and the rest is water.

4. The white-painting agent for tree trunks according to claim 3, wherein The stone sulfur mixture is prepared by heating and mixing 5-7 parts of quicklime, 8-12 parts of sulfur powder, and 60-90 parts of water.

5. A method of preparing a whitening agent, characterized by, The preparation of the white paint for tree trunks with the functions of preventing rats and rabbits according to any one of claims 1 to 4 comprises the following steps: Step 1: prepare 6 parts of quicklime, 10 parts of sulfur powder, and 75 parts of water; adjust the sulfur powder to a paste-like sulfur slurry with water at 45-50°C for standby; boil the remaining water in a pot, add quicklime and stir evenly, continue to heat to boiling, slowly pour the paste-like sulfur slurry into the pot, then heat to boiling for 45-50 min, and then cool and filter to obtain the stone sulfur mixture; Step 2: prepare 3-6 parts of stone sulfur mixture, 3-6 parts of salt, 1-3 parts of vegetable oil, 1-3 parts of soy milk, 0.3-0.7 parts of chili powder, 20-40 parts of quicklime, and the rest is water; Step 3: first put the stone sulfur mixture into water and stir evenly, then gradually add quicklime while stirring to obtain a mixed solution; Step 4: add salt, vegetable oil, soy milk, and chili powder one by one to the mixed solution and stir evenly.

6. The production method according to claim 5, wherein Soak the soybeans in water until they are fully soaked, grind them into a paste, filter out the soybean residue, and then boil and cool to prepare the soy milk.

7. The production method according to claim 5, wherein In the step 1, an iron pot or ceramic pot is used to boil water.

8. The production method according to claim 5, wherein The stone sulfur mixture obtained in the step 1 is 25-28 Baume degrees. In the step 1, an iron pot or ceramic pot is used to boil water. The stone sulfur mixture obtained in the step 1 is 25-28 Baume degrees.

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