Medicament for preventing and controlling macadamia nut dichocrocis punctiferalis and prevention and control method thereof

Abstract

The invention provides a medicament for preventing and controlling macadamia nut dichocrocis punctiferalis and a prevention and control method thereof. The medicament is prepared from an antibacterial traditional Chinese medicine extracting solution, a 10% thiotraniliprole suspension, a 10% fluchlorantraniliprole suspension, a 1% celastrus angulatus suspension, prochloraz, potassium fulvate and an organic fertilizer. Before application, the composition is mixed with a surfactant, an antifoaming agent and ethanol to form a microemulsion, and then the microemulsion is sprayed. The macadamia nut-corn interplanting method is combined, dichocrocis punctiferalis is lured to the corn to lay eggs and cause damage, the situation that dichocrocis punctiferalis lay eggs on the macadamia nuts is reduced, pesticide is sprayed in the egg laying peak period, the pesticide can directly make contact with eggs and insect bodies, pests are killed, and therefore the situation that the macadamia nuts are damaged by the insects is reduced, and the purpose of efficient prevention and control is achieved. The agent is mainly prepared from traditional Chinese medicine extract and is compatible with chemical agents, nuts can be protected from being infected by diseases and pests for a long time, meanwhile, the use amount of the chemical agents is reduced, the environment is protected, and the drug resistance of the diseases and pests can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of crop disease and insect pest control, and particularly relates to an agent for controlling macadamia nut peach borer and an efficient control method thereof. Background Art

[0002] Macadamia nuts are evergreen trees that grow in southeastern Australia. Their fruits have high nutritional value and are loved by people. With the development and utilization of macadamia nuts, macadamia nuts have health and medicinal value and are one of the most delicious dried fruits in the world. Macadamia nuts are rich in calcium, phosphorus, iron and other elements, providing important nutrients for people's daily lives. Their fruits are rich in various amino acids and promote the development of free radicals in the human body. Macadamia nuts are rich in palmitic acid, and vegetable oil can be extracted from the fruits. It can provide nutrition for the elderly, pregnant women and children, help to improve brain function, relieve memory and balance physical discomfort. Macadamia nut vegetable oil is healthy and mild. Its natural raw materials can be extracted and used in various beauty products to improve skin quality and protect skin. Macadamia nuts can be extended to fruits, leaves and flowers. Using macadamia nuts as raw materials, multiple industrial chains can be extended.

[0003] The peach borer is a borer pest that has caused serious damage to macadamia nuts this year, with the fruit damage rate in some orchards reaching over 30%. When the insect attacks macadamia nuts, it often lays eggs between the fruits. After the eggs hatch, the larvae immediately bore into the fruit to cause damage. It is difficult to spray the pesticide directly onto the eggs or larvae, resulting in extremely poor control effects. If the peach borer appears and is not handled properly, it will cause the fruit to crack, development to be interrupted, and the fruit to fall prematurely, which will greatly reduce the taste, flavor and nutritional quality of the nuts, seriously affecting the increase in fruit production and income. The harmful substances produced by the lesions will also affect the health of consumers. Therefore, how to effectively prevent and control the peach borer in macadamia nuts is a production problem that the macadamia nut industry urgently needs to solve. Summary of the invention

[0004] The object of the present invention is to provide an agent for preventing and controlling macadamia nut borer and a control method thereof. The agent is prepared by mainly using an antibacterial Chinese medicine extract and compounding chemical agents, thereby reducing the amount of chemical agents used to protect the environment and avoiding the defect of increased drug resistance of the peach borer in a short period of time after application of the agent.

[0005] The present invention is achieved through the following technical solutions: A medicine for preventing and controlling macadamia nut moth, comprising the following components: 20-25 parts of antibacterial Chinese medicine extract, 2-5 parts of 10% thiobencarb suspension, 2-5 parts of 10% flufenac suspension, 1-3 parts of 1% celangulin suspension, 0.1-2 parts of prochloraz, 4-6 parts of potassium humate, and 8-12 parts of organic fertilizer; The antibacterial Chinese medicine extract is obtained by mixing citrus peel extract, mugwort stem and leaf extract, camphor leaf extract and thuja strychnifolia leaf extract in a mass ratio of (0.5-2.0):(0.5-1.0):(0.25-0.5):(0.5-1).

[0006] Preferably, the usage ratio of the 10% thiobencarb suspension to the 1% celangulin suspension is (1-2):1 by weight.

[0007] Preferably, the usage ratio of the 10% flubendiamide suspension to the 1% celangulan suspension is (1-2):1 by weight.

[0008] As a further improvement of the present invention, the method for preparing the antibacterial Chinese medicine extract is as follows: (1) Wash the peel of tangerine peel, stems and leaves of mugwort, leaves of camphor and leaves of thuja, and dry them in an electric hot air drying oven at 60°C for 20 to 24 hours until constant weight is reached, then grind them into Chinese medicinal powder and pass through a 50 to 200 mesh sieve; (2) Take four kinds of traditional Chinese medicine powders and add acetone solution of 8 to 12 times their weight respectively, extract at a constant temperature of 40°C for 5 to 8 hours, and filter the extracted solution to obtain an extract; (3) The extract is evaporated and concentrated to a paste, and the residual acetone is removed by vacuum drying. The acetone solution is then used to make a fixed volume of a Chinese medicine extract having a concentration of 10,000 to 15,000 μg / mL.

[0009] Preferably, the extraction times in step (2) are 1 to 4 times, and each extraction takes 2 to 5 hours.

[0010] The medicament of the invention is prepared by mainly using an antibacterial Chinese medicine extract and compounding chemical agents such as methylthiocarb, metalaxyl and prochloraz. By adjusting the compatibility ratio of the Chinese medicine extract and the chemical agents, not only the synergistic effect of the Chinese medicine extract and the chemical agents is maintained, but also the high cost of the Chinese medicine extract is reduced, and the usage of the chemical agents is also reduced, thereby protecting the environment and reducing the occurrence of greater drug resistance of diseased peach borers.

[0011] At the same time, the present invention extracts the active ingredients in the Chinese medicine to the maximum extent by adjusting the material-liquid ratio of the Chinese medicine raw material to the extract, the number of extractions and the extraction time, thereby improving the antibacterial effect of the medicament of the present invention.

[0012] At the same time, the present invention also provides a method for preventing and controlling macadamia nut peach borer, using the above-mentioned agent for preventing and controlling macadamia nut peach borer, specifically comprising the following steps: (1) Plant corn between the rows of macadamia plants every year, with 1 to 4 rows of corn planted every 2 to 4 rows, and the distance between the corn plants and the macadamia plants should be 0.6 to 1.5 m; (2) All the components of the drug are mixed to obtain a mixed solution I, and then 18% to 25% by weight of a surfactant is added to the mixed solution I to obtain a mixed solution II; The surfactant is obtained by mixing calcium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in a mass ratio of 1: (0.5-1): (0.5-1); (3) Add 2% to 5% by weight of ethanol and 0.2% to 1.0% by weight of defoaming agent to the mixed solution II, mix well and obtain a sprayable agent; (4) When corn is in the earing stage and reaches the milky stage, pests will concentrate on laying eggs on the tassels, earlobes, ear nodes, filaments, leaf tips and leaves of corn. Spraying the pesticide on the above-mentioned parts with a sprayer can inhibit the eggs from hatching into insects.

[0013] The present invention intercrops macadamia nuts with corn, and the tendency of peach borer to damage corn is significantly higher than that of macadamia nuts, and the female adults mainly lay eggs in the male ears, ear, female ear nodes, filaments, leaf sheaths and leaves of corn. Therefore, this feature is used to carry out pesticide control during the peak period of peach borer oviposition. The pesticide can directly contact the eggs or insect bodies, kill eggs, larvae and adults, thereby reducing the degree of damage to macadamia nuts and achieving efficient prevention and control. The pesticide of the present invention is compounded into a microemulsion by adding a surfactant, a defoamer and ethanol before application, so that the pesticide forms a more uniform liquid state, so that the pesticide is more stable after spraying, and can be evenly covered on the branches and leaves of nuts and fruits after spraying, thereby achieving a better comprehensive protective effect.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The medicament of the present invention is prepared by combining Chinese medicine extract with chemical agents, which can protect nuts from being infected by pests and diseases for a long time, while reducing the use of chemical agents, thereby protecting the environment and reducing the drug resistance of pests and diseases.

[0015] 2. The agent of the present invention can be sprayed after microemulsification to cover the branches and leaves of nuts more evenly, thereby achieving all-round protection and further improving the disease resistance of nuts. DETAILED DESCRIPTION

[0016] The present invention is further described below with reference to the embodiments. In the embodiments, unless otherwise specified, the technical means used are all conventional technical means in the art. Example 1

[0017] A medicine for preventing and controlling macadamia nut moth, comprising the following components: 20 parts of antibacterial Chinese medicine extract, 2 parts of 10% thiobencarb suspension, 2 parts of 1% celangulin suspension, 0.1 parts of prochloraz, 4 parts of potassium humate, and 8 parts of organic fertilizer; The antibacterial Chinese medicine extract is obtained by mixing citrus aurantium peel extract, mugwort stem and leaf extract, camphora leaf extract and thuja strychnifolia leaf extract in a mass ratio of 2.0:1.0:0.5:1.

[0018] The preparation method of the antibacterial Chinese medicine extract is as follows: (1) Wash the peel of tangerine peel, stems and leaves of mugwort, leaves of camphor and leaves of thuja, and dry them in an electric hot air drying oven at 60°C for 20 h until constant weight is reached, then grind them into Chinese medicinal powder and pass through a 50-mesh sieve; (2) Take four kinds of Chinese medicine powders and add acetone solution of 8 times their weight respectively, extract at a constant temperature of 40℃ for 8 hours, and filter the extracted solution to obtain the extract; the extraction number is 1.

[0019] (3) The extract was evaporated and concentrated to a paste, and the residual acetone was removed by vacuum drying. Then, the volume was fixed with acetone solution to prepare a Chinese medicine extract with a concentration of 15000 μg / mL.

[0020] The method for preventing and controlling macadamia nut moth using the above-mentioned agent specifically comprises the following steps: (1) Plant corn between macadamia nut plants in February and March each year, with one row of corn planted every two rows, and the distance between corn plants and macadamia nut plants was 1.5m; (2) All the components of the drug are mixed to obtain a mixed solution I, and then 18% by weight of a surfactant is added to the mixed solution I to obtain a mixed solution II; The surfactant is obtained by mixing calcium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in a mass ratio of 1:0.5:0.5; (3) Add 2% by weight of ethanol and 0.2% by weight of defoaming agent to the mixed solution II, mix well and obtain a sprayable agent; (4) When corn is heading to the milky stage in May, pests will concentrate on laying eggs on the tassels, earlobes, nodes of the female ears, filaments, leaf tips and leaves of the corn. Spraying the pesticide on the above-mentioned parts with a sprayer can inhibit the eggs from hatching into insects. Example 2

[0021] A medicine for preventing and controlling macadamia nut moth, comprising the following components: 25 parts of antibacterial Chinese medicine extract, 4 parts of 10% thiobencarb suspension, 2 parts of 1% celangulin suspension, 2 parts of prochloraz, 6 parts of potassium humate, and 12 parts of organic fertilizer; The antibacterial Chinese medicine extract is obtained by mixing citrus aurantium peel extract, mugwort stem and leaf extract, camphora leaf extract and thuja strychnifolia leaf extract in a mass ratio of 2.0:1.0:0.5:1.

[0022] In terms of weight ratio, the usage ratio of the 10% flubendiamide suspension and the 1% celangulan suspension is 1:1.

[0023] The preparation method of the antibacterial Chinese medicine extract is as follows: (1) Wash the peel of tangerine peel, stems and leaves of mugwort, leaves of camphor and leaves of thuja, and dry them in an electric hot air drying oven at 60°C for 24 h until constant weight is reached, then grind them into Chinese medicinal powder and pass through a 200-mesh sieve; (2) Take four kinds of Chinese herbal medicine powders and add acetone solution of 12 times their weight respectively, extract at a constant temperature of 40℃ for 5 hours, and filter the extracted solution to obtain the extract; the extraction times were 4 times, each time for 2 hours.

[0024] (3) The extract was evaporated and concentrated to a paste, and the residual acetone was removed by vacuum drying. Then, the volume was fixed with acetone solution to prepare a Chinese medicine extract with a concentration of 10,000 μg / mL.

[0025] The method for preventing and controlling macadamia nut moth using the above-mentioned agent specifically comprises the following steps: (1) Plant corn between the rows of macadamia nut plants from February to March each year, with 4 rows of corn planted every 4 rows, and the distance between the corn plants and the macadamia nut plants was 0.6m; (2) All the components of the drug are mixed to obtain a mixed solution I, and then a surfactant in an amount of 25% by weight is added to the mixed solution I to obtain a mixed solution II; The surfactant is obtained by mixing calcium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in a mass ratio of 1:1:1; (3) Add 5% by weight of ethanol and 1.0% by weight of defoaming agent to the mixed solution II, mix well and obtain a sprayable agent; (4) When corn is heading to the milky stage in May, pests will concentrate on laying eggs on the tassels, earlobes, nodes of the female ears, filaments, leaf tips and leaves of the corn. Spraying the pesticide on the above-mentioned parts with a sprayer can inhibit the eggs from hatching into insects. Example 3

[0026] A medicine for preventing and controlling macadamia nut moth, comprising the following components: 22 parts of antibacterial Chinese medicine extract, 2 parts of 10% flufenac suspension, 1 part of 1% celangulin suspension, 0.1-2 parts of prochloraz, 4-6 parts of potassium humate, and 8-12 parts of organic fertilizer; The antibacterial Chinese medicine extract is obtained by mixing citrus aurantium peel extract, mugwort stem and leaf extract, camphora leaf extract and thuja strychnifolia leaf extract in a mass ratio of 1.5:0.8:0.3:0.8.

[0027] The preparation method of the antibacterial Chinese medicine extract is as follows: (1) Wash the peel of tangerine peel, stems and leaves of mugwort, leaves of camphor and leaves of thuja, and dry them in an electric hot air drying oven at 60°C for 22 h until constant weight is reached, then grind them into Chinese medicinal powder and pass through a 100-mesh sieve; (2) Take four kinds of Chinese medicine powders and add acetone solution with 10 times their weight respectively, extract at a constant temperature of 40℃ for 6 hours, and filter the extracted solution to obtain the extract; the extraction times were 3 times, each time for 2 hours.

[0028] (3) The extract was evaporated and concentrated to a paste, and the residual acetone was removed by vacuum drying. Then, the volume was fixed with acetone solution to prepare a Chinese medicine extract with a concentration of 12000 μg / mL.

[0029] The method for preventing and controlling macadamia nut moth using the above-mentioned agent specifically comprises the following steps: (1) Plant corn between macadamia nut plants in February and March each year, with two rows of corn planted every three rows, and the distance between corn plants and macadamia nut plants was 1.0 m; (2) All the components of the drug are mixed to obtain a mixed solution I, and then a surfactant in an amount of 20% by weight is added to the mixed solution I to obtain a mixed solution II; The surfactant is obtained by mixing calcium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in a mass ratio of 1:0.6:0.8; (3) Add 3% by weight of ethanol and 0.6% by weight of defoaming agent to the mixed solution II, mix well and obtain a sprayable agent; (4) When corn is heading to the milky stage in May, pests will concentrate on laying eggs on the tassels, earlobes, nodes of the female ears, filaments, leaf tips and leaves of the corn. Spraying the pesticide on the above-mentioned parts with a sprayer can inhibit the eggs from hatching into insects. Example 4

[0030] A medicament for preventing and controlling macadamia nut moth, characterized in that it is composed of the following components: 25 parts of antibacterial Chinese medicine extract, 3 parts of 10% flufenac suspension, 3 parts of 1% celangulin suspension, 0.5 parts of prochloraz, 6 parts of potassium humate, and 8 parts of organic fertilizer; The antibacterial Chinese medicine extract is obtained by mixing citrus aurantium peel extract, mugwort stem and leaf extract, camphora leaf extract and thuja strychnifolia leaf extract in a mass ratio of 1.2:0.8:0.5:1.

[0031] The preparation method of the antibacterial Chinese medicine extract is as follows: (1) Wash the peel of tangerine peel, stems and leaves of mugwort, leaves of camphor and leaves of thuja, and dry them in an electric hot air drying oven at 60°C for 22 h until constant weight is reached, then grind them into Chinese medicinal powder and pass through a 150-mesh sieve; (2) Take four kinds of traditional Chinese medicine powders and add acetone solution with a volume of 10 times their weight respectively, extract at a constant temperature of 40°C for 8 h, and filter the extracted solution to obtain the extract; the extraction times were 3 times, each time for 3 h; (3) The extract was evaporated and concentrated to a paste, and the residual acetone was removed by vacuum drying. Then, the volume was fixed with acetone solution to prepare a Chinese medicine extract with a concentration of 10,000 μg / mL.

[0032] The above-mentioned agent for preventing and controlling macadamia nut peach borer specifically comprises the following steps: (1) Plant corn between macadamia nut plants in February and March each year, with 3 rows of corn planted every 2 rows, and the distance between corn plants and macadamia nut plants was 0.6m; (2) All the components of the drug are mixed to obtain a mixed solution I, and then a surfactant in an amount of 22% by weight is added to the mixed solution I to obtain a mixed solution II; The surfactant is obtained by mixing calcium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in a mass ratio of 1:1:0.5; (3) Add 4% by weight of ethanol and 0.6% by weight of defoaming agent to the mixed solution II, mix well and obtain a sprayable agent; (4) When corn is heading to the milky stage in May, pests will concentrate on laying eggs on the tassels, earlobes, nodes of the female ears, filaments, leaf tips and leaves of the corn. Spraying the pesticide on the above-mentioned parts with a sprayer can inhibit the eggs from hatching into insects.

[0033] Application Examples In a nut farm in Guangxi, macadamia nuts were planted and pest control was carried out according to Examples 1-4, and clean water spraying was used as a control. The insect population reduction rate and control effect after treatment with each agent are shown in Table 1.

[0034] Specific: ; ; Table 1: It can be seen from the data in Table 1 that by using the agent and control method of the present invention, the control effect of macadamia nut peach borer reaches more than 87.05%.

[0035] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A medicament for preventing and controlling macadamia nut borer, characterized in that: It is composed of the following components: 20-25 parts of antibacterial Chinese medicine extract, 2-5 parts of 10% thiobencarb suspension, 2-5 parts of 10% flufenac suspension, 1-3 parts of 1% celangulin suspension, 0.1-2 parts of prochloraz, 4-6 parts of potassium humate, and 8-12 parts of organic fertilizer; The antibacterial Chinese medicine extract is obtained by mixing citrus peel extract, mugwort stem and leaf extract, camphor leaf extract and thuja strychnifolia leaf extract in a mass ratio of (0.5-2.0):(0.5-1.0):(0.25-0.5):(0.5-1).

2. The agent for controlling macadamia nut borer according to claim 1, characterized in that: In terms of weight ratio, the usage ratio of the 10% thiobencarb suspension and the 1% celangulin suspension is (1-2):

1.

3. The agent for controlling macadamia nut borer according to claim 1, characterized in that: In terms of weight ratio, the usage ratio of the 10% flubendiamide suspension and the 1% celangulan suspension is (1-2):

1.

4. The agent for controlling macadamia nut borer according to claim 1, characterized in that: The preparation method of the antibacterial Chinese medicine extract is as follows: (1) Wash the peel of tangerine peel, stems and leaves of mugwort, leaves of camphor and leaves of thuja, and dry them in an electric hot air drying oven at 60°C for 20 to 24 hours until constant weight is reached, then grind them into Chinese medicinal powder and pass through a 50 to 200 mesh sieve; (2) Take four kinds of traditional Chinese medicine powders and add acetone solution of 8 to 12 times their weight respectively, extract at a constant temperature of 40°C for 5 to 8 hours, and filter the extracted solution to obtain an extract; (3) The extract is evaporated and concentrated to a paste, and the residual acetone is removed by vacuum drying. The acetone solution is then used to make a fixed volume of a Chinese medicine extract having a concentration of 10,000 to 15,000 μg / mL.

5. The agent for controlling macadamia nut borer according to claim 4, characterized in that: The extraction times in step (2) are 1 to 4 times, and each extraction takes 2 to 5 hours.

6. A method for controlling macadamia nut borer, characterized in that: The method of using the agent for controlling macadamia nut moth according to any one of claims 1 to 5 specifically comprises the following steps: (1) Plant corn between the rows of macadamia plants every year, with 1 to 4 rows of corn planted every 2 to 4 rows, and the distance between the corn plants and the macadamia plants should be 0.6 to 1.5 m; (2) All the components of the drug are mixed to obtain a mixed solution I, and then 18% to 25% by weight of a surfactant is added to the mixed solution I to obtain a mixed solution II; The surfactant is obtained by mixing calcium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether in a mass ratio of 1: (0.5-1): (0.5-1); (3) Add 2% to 5% by weight of ethanol and 0.2% to 1.0% by weight of defoaming agent to the mixed solution II, mix well and obtain a sprayable agent; (4) When corn is in the earing stage and reaches the milky stage, pests will concentrate on laying eggs in the male ears, earlobes, female ear nodes, filaments, leaf tips and leaves of corn. Spraying the pesticide on the above-mentioned parts through a sprayer can inhibit the eggs from hatching into insects.

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