CN103960275A - Tree trunk injection liquid containing emamectin benzoate and thiacloprid, and preparation method thereof - Google Patents

Abstract

The present invention proposes a dry injection agent for trees containing emamectin benzoate and thiacloprid and a preparation method thereof. Alcohol solvent; its mass percentage is: 2-10%, 2-10%, 3-15%, 2-6%, 59-90%. The dry injection liquid agent of the present invention has the characteristics of less medication, low cost, high control effect, etc., only acts on the target harmful organisms of trees, does not harm natural enemy insects, is friendly to the environment, has a wide application range, is simple and convenient to operate, and has high work efficiency. Not limited by geographical conditions and affected by climate change, waterless and non-contact pesticide application, safe for people and the environment, targeted control of pests in forests, urban gardens, scenic green trees, street trees, shelterbelts and fruit trees .

Description

Dry injection liquid for trees containing emamectin benzoate and thiacloprid and preparation method thereof

technical field

The invention relates to the technical field of tree pest control, in particular to a dry injecting liquid for trees containing emamectin benzoate and thiacloprid and a preparation method thereof.

Background technique

Carry out pesticide application with injection dry method, rely on the independent conduction of medicament in several trees to prevent and treat tree diseases and insect pests method as far back as 1926, the United States has carried out practical application and developed tree injection machine. As a method of using pesticides, it has always been valued by people because of its characteristics of less pesticide application, high control efficiency, environmental friendliness, and safety for humans and animals. Tree pests and diseases, especially borer pests and branch diseases, have very little control effect with conventional spraying methods, and the occurrence and spread of such pests cannot be controlled.

In recent years, the occurrence of tree diseases and insect pests has become increasingly serious, especially borer pests such as longhorn beetles, beetle moths, and chitins. The occurrence of Monochamus alternata not only caused harm to pine trees, but also caused a large number of spread of pine xylophilus, which caused a devastating blow to southern pine forests. The hazards of urban greening tree beetles are also becoming more and more serious, and the endangered trees are easily blown down by wind, causing safety accidents. The trunk pests can no longer be controlled by the conventional spraying method, so the research and application of the spraying method is very urgent. At present, there are many kinds of dry injection application techniques used in production, which can be divided into poison swab method, stem smearing and bandaging method, high pressure injection method and gravity injection method according to the different injection methods. Because these spraying methods all have different shortcomings, seriously restrict the application of large-scale promotion.

Contents of the invention

The invention proposes a dry injection agent for trees containing emamectin benzoate and thiacloprid and a preparation method thereof, which solves the technical problems in the prior art that there are many medicines, low control effect, and inability to remove harmful organisms in a targeted manner.

Technical scheme of the present invention is realized like this:

A dry injection agent for trees containing emamectin benzoate and thiacloprid, its components include: emamectin benzoate, thiacloprid, surfactant, glacial acetic acid and alcohol solvent; its mass percentage is: 2-10% , 2-10%, 3-15%, 2-6%, 59-90%.

As a preferred technical scheme, the emamectin benzoate, thiacloprid, surfactant, glacial acetic acid and alcohol solvent; its mass percentage is: 2-5%, 2-5%, 6-10%, 3-5% %, 75-87%.

As a preferred technical solution, the surfactant is one or a mixture of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, nonylphenol polyoxyethylene ether, diethanolamide.

As a preferred technical solution, the surfactant is a mixture of fatty alcohol polyoxyethylene ether and nonylphenol polyoxyethylene ether.

As a preferred technical solution, the alcoholic solvent is one or a mixture of methanol, ethanol, isopropanol, n-butanol, diethylene glycol butyl ether.

A kind of preparation method of the tree injection dry solution containing emamectin benzoate and thiacloprid, comprising:

Using glacial acetic acid to dissolve thiacloprid to obtain the first mixed solution;

Use an alcoholic solvent to dissolve emamectin benzoate to obtain a second mixed solution;

Mix the first mixed solution and the second mixed solution, then add a surfactant, stir and mix evenly, and obtain a tree injection dry solution containing emamectin benzoate and thiacloprid.

The present invention is a dry-injecting liquid agent for trees containing emamectin benzoate and thiacloprid, which can effectively prevent and control various pests of trees, such as aphids, red wax scales, longhorns, pine wood nematodes, bark beetles, etc. Moths, red spiders and other pests in different ways. If the same pesticide is controlled by the traditional spraying method, the dosage is the same, and the control effect on dry borer pests and leaf miner pests is poor. When controlling piercing-sucking and leaf-eating pests, a certain control effect can be achieved by increasing the spray volume and concentration, and at the same time, it will also bring environmental pollution, killing natural enemies and other beneficial organisms, especially for the prevention and control of trees. And when trees are greened in urban gardens and scenic areas, the harm is more obvious, which not only causes waste of chemicals, but also pollutes the environment and may cause poisoning incidents.

The dry injection liquid agent of the present invention has the characteristics of less medication, low cost, high control effect, etc., only acts on the target harmful organisms of trees, does not harm natural enemy insects, is friendly to the environment, has a wide application range, is simple and convenient to operate, and has high work efficiency. Not limited by geographical conditions and affected by climate change, waterless and non-contact pesticide application, safe for people and the environment, targeted control of pests in forests, urban gardens, scenic green trees, street trees, shelterbelts and fruit trees .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Example 1

Dissolve 3 grams of thiacloprid with 3 grams of glacial acetic acid, dissolve 2 grams of emamectin benzoate with 87 grams of ethanol, mix the above two solutions, add 3 grams of fatty alcohol polyoxyethylene ether and 2 grams of nonylphenol polyoxyethylene ether, that is Prepare 100 grams of 5% emamectin benzoate. Thiacloprid injection dry solution.

Example 2

Dissolve 3 grams of thiacloprid with 3 grams of glacial acetic acid, dissolve 3 grams of emamectin benzoate with 83 grams of diethylene glycol butyl ether, mix the above two solutions, add 8 grams of alkylphenol polyoxyethylene ether, and obtain 100 grams of 6% emamectin benzoate. Thiacloprid injection dry solution.

Example 3

Dissolve 2 grams of thiacloprid with 2 grams of glacial acetic acid, dissolve 10 grams of emamectin emamectin salt with 40 grams of ethanol and 43 grams of isopropanol, mix the above two solutions, add 3 grams of nonylphenol polyoxyethylene ether, and obtain 100 grams of 12 %Emamectin benzoate. Thiacloprid injection dry solution.

Example 4

Dissolve 10 grams of thiacloprid with 6 grams of glacial acetic acid, dissolve 7 grams of emamectin benzoate with 25 g of ethanol and 37 g of n-butanol, mix the above two solutions, add 15 grams of diethanolamide, and obtain 100 grams of 17% emamectin benzoate ﹒ Thiacloprid injection dry solution.

Example 5

Dissolve 5 grams of thiacloprid with 5 grams of glacial acetic acid, dissolve 5 grams of emamectin benzoate with 30 grams of diethylene glycol butyl ether, mix the above two solutions, add 5 grams of diethanolamide, and add 50 grams of isopropanol to make up to 100g , Stir evenly to obtain 100 grams of 10% emamectin benzoate. Thiacloprid injection dry solution.

Adopt the tree injection drying liquid that contains emamectin benzoate and thiacloprid that above-mentioned embodiment makes, carry out the test that prevents tree pests, test result is as follows:

Test Example 1: Efficacy Test of Tree Trunk Injection to Control and Control Pine Beetle Beetle

1 Materials and methods

1.1 Test materials

The injection device is a self-flowing tree trunk injector and a portable rechargeable hand drill.

Drugs for testing:

6% emamectin benzoate. Thiacloprid dry liquid injection (made in Example 2);

1.2 Test method

Application method: Use a portable rechargeable hand drill to drill a hole 45° downward at an angle of 45° at the base of the trunk (10-15cm from the ground surface), and cut a hole with a length of 4mm and a depth of 3-4cm. Pierce the blind hole of the injector with a tip or a needle, and then insert the injection tube into the punched tree hole.

A one-time injection of the above-mentioned medicaments was carried out by self-flowing trunk injection. 10 strains were treated with each dose. Before injecting the medicine, select the excrement wormholes of longicorn larvae that are easy to observe, and mark and record them with red paint. The number of defecation wormholes was investigated regularly at 5d, 15d, and 30d after injection. The final non-defecating wormhole rate was used as the larval mortality rate to calculate the control effect.

2 result analysis

It can be seen from Table 1 that the tested dry-injection agent has a good control effect on Monochamus alternatus 6% emamectin benzoate. In spring, thiacloprid injection dry liquid was used to inject 25mL and 50mL doses respectively to prevent and control Pinus massoniana with DBH 15-20cm. The test results show that the control effect of the medicament on Monochamus alternatus is related to the dosage of the dry injection agent. After 30 days of injection, the control effect reaches 86.2% and 91.4% respectively. The dry liquid preparation has a high control effect on Monochamus alternatus.

Table 1 Efficacy test of injecting dry medicine to control Monochamus alternatus

Location: Pine Tree by the Reservoir of Cha Village, Xukou Town, Fuyang, Time: 2012.3.25

Test Example 2, Drug Efficacy Test of Tree Trunk Injection to Control Ilex Red Wax Scale

1 Materials and methods

1.1 Test materials

The injection device is a self-flowing tree trunk injector and a portable rechargeable hand drill.

Drugs for testing:

10% emamectin benzoate. Thiacloprid injection dry liquid (made in embodiment 5);

The tree species to be tested is holly, a street tree opposite to the wind and rain playground of Zhejiang Agriculture and Forestry University, with a plant spacing of 3 meters, a trunk diameter of 10-15cm, and many branches.

1.2 Test method

Application method: Use a portable rechargeable hand drill to drill a hole 45° downward at an angle of 45° at the base of the trunk (10-15cm from the ground surface), and cut a hole with a length of 4mm and a depth of 3-4cm. Pierce the blind hole of the injector with a tip or a needle, and then insert the injection tube into the punched tree hole.

A one-time injection of the above-mentioned medicaments was carried out by self-flowing trunk injection. 10 strains were treated with each dose. Before the injection, fix the fixed branches to count the population base of the red wax scale insects, and use red paint to mark and record. 10d, 20d, and 30d after injection, the number and death of insects were checked, and the control effect was calculated.

2 result analysis

It can be seen from Table 2 that the tested dry-injection agents also have a good control effect on red wax scale after dry-injection application. 10% emamectin benzoate. The thiacloprid injection dry solution is used to control the holly trees with a breast diameter of 10-15cm in the spring with a dose of 25mL and 50mL respectively. The test results show that the control effect of the pesticide on the red wax scale is related to the dosage of the dry injection agent. After 30 days of injection, the control effect reaches 80.5% and 92.6% respectively. Compared with the control holly, 2% thiacloprid · emamectin The dry-injected liquid agent has a high control effect on red wax scale.

Table 2 Efficacy test of tree trunk injection to control Monochamus alternatus

Venue: Zhejiang A&F University, Time: 2012.5.15

The safety evaluation of dry injection liquid agent of the present invention to forest tree:

During the dry spray application test, no phytotoxicity of the medicament to the trees was observed. The injection hole became healed in the same year, and the trees grew well. In contrast, the new shoots of the tree crowns injected with medicine grow vigorously, the branches and leaves are emerald green, and there are no traces of pest damage on the leaves and branches.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1. containing a trunk injection liquor for first dimension salt and thiacloprid, it is characterized in that, its component comprises: first dimension salt, thiacloprid, surfactant, glacial acetic acid and alcohols solvent; Its mass percent is: 2-10%, 2-10%, 3-15%, 2-6%, 59-90%.

2. a kind of trunk injection liquor containing first dimension salt and thiacloprid containing first dimension salt and thiacloprid according to claim 1, is characterized in that, described first dimension salt, thiacloprid, surfactant, glacial acetic acid and alcohols solvent; Its mass percent is: 2-5%, 2-5%, 6-10%, 3-5%, 75-87%.

3. a kind of trunk injection liquor containing first dimension salt and thiacloprid containing first dimension salt and thiacloprid according to claim 1 and 2, it is characterized in that, described surfactant is fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, polyoxyethylene nonylphenol ether, one or both mixtures of diglycollic amide.

4. a kind of trunk injection liquor containing first dimension salt and thiacloprid containing first dimension salt and thiacloprid according to claim 3, is characterized in that, described surfactant is the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether.

5. a kind of trunk injection liquor containing first dimension salt and thiacloprid containing first dimension salt and thiacloprid according to claim 1 and 2, it is characterized in that, described alcohols solvent is one or both mixture of methyl alcohol, ethanol, isopropyl alcohol, n-butanol, diethylene glycol butyl ether.

6. the preparation method of a kind of trunk injection liquor containing first dimension salt and thiacloprid containing first dimension salt and thiacloprid according to claim 1 and 2, comprising:

Use glacial acetic acid to dissolve thiacloprid, obtain the first mixed liquor;

Use alcohols solvent to dissolve first dimension salt, obtain the second mixed liquor;

Mix described the first mixed liquor and the second mixed liquor, add afterwards surfactant, be uniformly mixed, obtain the trunk injection liquor containing first dimension salt and thiacloprid.