阅读说明：本技术 防治柑橘类果树黄龙病的水乳剂及制备方法、使用方法 (Emulsion in water for preventing and treating citrus fruit tree yellow dragon disease, preparation method and use method ) 是由 彭小明 蔡典贤 于 2020-04-30 设计创作，主要内容包括：本发明提供一种防治柑橘类果树黄龙病的水乳剂,按重量比由以下组分组成：十二醇100-300份、十六醇2-150份、杀菌杀虫剂1-100份、植物营养剂5-150份、乳化剂5-10份、助乳化剂4-6份、增稠剂40份、水500-800份。本发明还提供上述防治柑橘类果树黄龙病的水乳剂的制备方法、使用方法。采用本发明提供的防治柑橘类果树黄龙病的水乳剂、制备方法及使用方法,可以达到以下技术效果：切断柑橘黄龙病的主要传播途径,防止黄龙病扩散,灭杀果树黄龙病病菌,让病树恢复生机。(The invention provides an aqueous emulsion for preventing and treating citrus fruit tree yellow dragon disease, which comprises the following components in percentage by weight: 300 parts of dodecanol, 2-150 parts of hexadecanol, 1-100 parts of bactericide, 5-150 parts of plant nutrient, 5-10 parts of emulsifier, 4-6 parts of auxiliary emulsifier, 40 parts of thickener and 800 parts of water. The invention also provides a preparation method and a use method of the water emulsion for preventing and treating citrus fruit tree huanglongbing. By adopting the water emulsion for preventing and treating citrus fruit tree yellow dragon disease, the preparation method and the use method provided by the invention, the following technical effects can be achieved: cutting off the main transmission path of the citrus huanglongbing, preventing the huanglongbing from spreading, killing germs of the yellow longbing of the fruit trees and recovering the vitality of the diseased trees.)

1. The aqueous emulsion for preventing and treating citrus fruit tree yellow dragon disease is characterized by comprising the following components in parts by weight: 300 parts of dodecanol, 2-150 parts of hexadecanol, 1-100 parts of bactericide, 5-150 parts of plant nutrient, 5-10 parts of emulsifier, 4-6 parts of auxiliary emulsifier, 40 parts of thickener and 800 parts of water.

2. The aqueous emulsion for preventing and treating citrus yellow dragon disease as claimed in claim 1, which is characterized by comprising the following components in percentage by weight: 250 parts of dodecanol 150-.

3. The aqueous emulsion for preventing and treating the huanglongbing of the citrus fruit trees as claimed in claim 1 or 2, wherein the bactericide insecticide is one or more of tea saponin, azadirachtin, toosendanin, matrine, celastrine and stemonine.

4. The aqueous emulsion for preventing and treating citrus yellow dragon disease as claimed in claim 3, wherein the plant nutrient is one or a mixture of two of a water-soluble fertilizer containing amino acid and a water-soluble fertilizer containing humic acid.

5. The aqueous emulsion for preventing and treating citrus yellow dragon disease as claimed in claim 3, wherein the emulsifier is one or more of tea saponin, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene fatty acid ester and sorbitan ester which are nonionic surfactants.

6. The aqueous emulsion for preventing and treating citrus fruit tree huanglongbing as claimed in claim 3, wherein said co-emulsifier is n-butanol or propylene glycol.

7. The aqueous emulsion for preventing and treating citrus fruit tree huanglongbing as claimed in claim 3, wherein said thickener is one or more of arabic gum, methylcellulose, xanthan gum, white carbon black, attapulgite and bentonite.

8. The preparation method of the aqueous emulsion for preventing and treating citrus fruit tree huanglongbing as claimed in claim 1 or 2, which comprises the following steps: placing dodecanol and hexadecanol into a container, heating to 60-70 ℃ for melting, adding an emulsifier and an auxiliary emulsifier into the container, processing by a high-shear homogenizer at the rotation speed of 5000 rpm for 10 minutes, adding water at 60-70 ℃ into the container, processing by the high-shear homogenizer at the rotation speed of 10000 rpm for 10 minutes, cooling to 40 ℃, adding a thickening agent, a bactericidal insecticide and a plant nutrient into the container, processing by the high-shear homogenizer at the rotation speed of 10000 rpm for 30-40 minutes, and obtaining the bactericidal composite.

9. The use method of the aqueous emulsion for preventing and treating the huanglongbing of the citrus fruit trees as claimed in claim 1 or 2, wherein the aqueous emulsion is diluted by 300 times with water and sprayed on the whole fruit tree plant, and the aqueous emulsion is diluted by 300 times and then applied to the root of the fruit tree.

10. The use method of the aqueous emulsion for preventing and treating citrus fruit tree huanglongbing as claimed in claim 1 or 2, wherein the plant nutrient is the aqueous emulsion containing amino acid water-soluble fertilizer, which is diluted by 300 times with water and sprayed on the whole fruit tree plant; diluting the plant nutrient which is an aqueous emulsion containing humic acid water-soluble fertilizer by 300 times with water, and then spraying the aqueous emulsion on the roots of fruit trees.

Technical Field

The invention relates to an aqueous emulsion for preventing and treating citrus fruit tree huanglongbing, a preparation method and a use method thereof.

Background

The citrus fruit tree 'huanglongbing' is one of the destructive and destructive diseases in the citrus production in the world, is caused by gram-negative bacteria (belonging to the genus of the.

The citrus fruit trees are widely distributed in nearly 50 countries and regions in the world, along with the warming of climate, the distribution area of vector insects of the huanglongbing is gradually enlarged, and meanwhile, the exchange of world resources is gradually frequent, so that the huanglongbing danger is gradually serious. The occurrence of the disease can cause large-area yield reduction, quality deterioration and even death, great loss is brought to citrus economy, and healthy development of citrus industry is seriously influenced.

The citrus whole-plant systemic diseases of the yellow dragon disease are obtained, the root, the trunk, the branch, the leaf, the flower and the fruit have pathogeny, particularly the root, the medicament is difficult to achieve, no good administration method and way are found at present, and no specific pesticide is developed. The current prevention and control method mainly has a strict quarantine system, and methods of preventing the artificial propagation of the seedlings, cultivating disease-free seedlings, preventing and controlling microorganisms, preventing and controlling pathogen propagation media, namely citrus psyllid and the like are adopted. However, the using processes of the methods have self-limiting factors, and the control loopholes appear, so that the citrus yellow shoot diseases occur in different areas in large area every year.

Disclosure of Invention

The invention aims to solve the technical problem of providing the aqueous emulsion for effectively preventing and treating the huanglongbing of the citrus fruit trees.

The invention provides an aqueous emulsion for preventing and treating citrus fruit tree yellow dragon disease, which comprises the following components in percentage by weight: 300 parts of dodecanol, 2-150 parts of hexadecanol, 1-100 parts of bactericide, 5-150 parts of plant nutrient, 5-10 parts of emulsifier, 4-6 parts of auxiliary emulsifier, 40 parts of thickener and 800 parts of water.

Further, the water emulsion for preventing and treating citrus fruit tree yellow shoot comprises the following components in percentage by weight: 250 parts of dodecanol 150-.

Further, the bactericide is one or more of tea saponin, azadirachtin, toosendanin, matrine, celastrus angulatus and stemonine.

Further, the plant nutrient is one or a mixture of two of a water-soluble fertilizer containing amino acid and a water-soluble fertilizer containing humic acid.

Further, the emulsifier is one or more of tea saponin which is a nonionic surfactant, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene fatty acid ester and sorbitan ester.

Further, the co-emulsifier is n-butanol or propylene glycol.

Further, the thickening agent is one or more of Arabic gum, methylcellulose, xanthan gum, white carbon black, attapulgite and bentonite.

The invention also provides a preparation method of the aqueous emulsion for preventing and treating citrus fruit tree yellow dragon disease, which comprises the following steps: placing dodecanol and hexadecanol into a container, heating to 60-70 ℃ for melting, adding an emulsifier and an auxiliary emulsifier into the container, processing by a high-shear homogenizer at the rotation speed of 5000 rpm for 10 minutes, adding water at 60-70 ℃ into the container, processing by the high-shear homogenizer at the rotation speed of 10000 rpm for 10 minutes, cooling to 40 ℃, adding a thickening agent, a bactericidal insecticide and a plant nutrient into the container, processing by the high-shear homogenizer at the rotation speed of 10000 rpm for 30-40 minutes, and obtaining the bactericidal composite.

The invention also provides a use method of the aqueous emulsion for preventing and treating the huanglongbing of the citrus fruit trees, which comprises the steps of adding water into the aqueous emulsion for diluting by 300 times, spraying the aqueous emulsion on the whole fruit tree plant, and simultaneously diluting by 300 times and spraying the aqueous emulsion on the root of the fruit tree.

Preferably, the plant nutrient is an aqueous emulsion containing amino acid water-soluble fertilizer, which is diluted by 300 times by adding water and sprayed on the whole fruit tree plant; diluting the plant nutrient which is an aqueous emulsion containing humic acid water-soluble fertilizer by 300 times with water, and then spraying the aqueous emulsion on the roots of fruit trees.

By adopting the water emulsion for preventing and treating citrus fruit tree yellow dragon disease, the preparation method and the use method provided by the invention, the following technical effects can be achieved: cutting off the main transmission path of the citrus huanglongbing, preventing the huanglongbing from spreading, killing germs of the yellow longbing of the fruit trees and recovering the vitality of the diseased trees. The method is realized by the following specific steps: 1. the aqueous emulsion is prepared by high-grade fatty alcohol, a bactericidal insecticide and a plant nutrient according to a certain process, is diluted by 300 times and then is sprayed on fruit trees, a layer of film can be formed on the surface of the whole fruit tree plant, the film has good control effect on most fungal diseases, insect eggs of pests and the like, the diaphorina citri can be effectively killed, and the main propagation path of the huanglongbing is cut off; the bactericide and insecticide in the emulsion in water can kill the yellow dragon disease germs in plants, and the plant nutrient can supplement the nutrition of the plants to enable the plants to recover the vitality. 2. The aqueous emulsion is diluted by 300 times and then applied to the root of a fruit tree in a spraying manner, a layer of film can be formed on the root of the fruit tree and the surface of soil particles nearby, the yellow dragon disease germs on the root can be effectively killed, the plant nutrient supplements the nutrition required by the root recovery of the fruit tree, and the root recovery of diseased trees is accelerated.

Detailed Description