CN112088876A - Mango spreader and preparation method and application thereof - Google Patents

Mango spreader and preparation method and application thereof Download PDF

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Publication number
CN112088876A
CN112088876A CN201910520472.2A CN201910520472A CN112088876A CN 112088876 A CN112088876 A CN 112088876A CN 201910520472 A CN201910520472 A CN 201910520472A CN 112088876 A CN112088876 A CN 112088876A
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mango
spreader
liquid
spraying
acid ester
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CN112088876B (en
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林勇
潘波
姜蕾
王冰洁
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CATAS Environment and Plant Protection Institute
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CATAS Environment and Plant Protection Institute
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/28—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
    • A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
    • A01N57/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing heterocyclic radicals
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Dentistry (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • Agronomy & Crop Science (AREA)
  • Wood Science & Technology (AREA)
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  • Chemical & Material Sciences (AREA)
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  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a mango spreader and a preparation method and application thereof. The mango spreader provided by the invention comprises an active ingredient and an auxiliary material, wherein the active ingredient comprises polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate. The active ingredient of the mango spreader is fatty acid ester surfactant, so that the surface tension of water and liquid medicine can be reduced, the contact angle between liquid medicine fog drops and leaf surfaces can be reduced, and the maximum coverage can be achieved; therefore, the spreading, attaching and wetting functions of the pesticide spray liquid drops on the plant leaf surfaces are improved, and the pesticide can be more uniformly distributed on the mango leaves, so that the pesticide effect is improved, the using amount of the pesticide is reduced, and the environmental pollution is reduced. The mango spreader is suitable for various spray pesticides for mango trees, including insecticides, bactericides, herbicides, plant growth regulators, leaf fertilizers and the like.

Description

Mango spreader and preparation method and application thereof
Technical Field
The invention relates to a spreading agent for mangoes in the field of agricultural plant protection, and a preparation method and application thereof.
Background
When the pesticide preparation is used, a corresponding spreading agent is frequently required to be added, and the aim is to deal with the situation that the spray spreading liquid medicine often flows and is not attached to plant leaves and pests. The surface of plants and pests is actually provided with hydrophobic wax and silk, and the dispersion liquid is not easy to adhere. The adhesive and wetting properties of the pesticide liquid are improved by the surfactant of the main component, and the effect of the pesticide is more stably shown by the spreader. It is important to maximize the effect of agricultural chemicals and to grasp the characteristics and the method of application, and when a functional spreader is used, it is also important to select an appropriate type, an appropriate product from the selected type, and to use an appropriate amount. Especially, the proper combination application matched with the function, the use amount, the pesticide, the crop and the environmental condition of the spreader has very important significance.
Mango is an evergreen big tree of the family Anacardiaceae, a leaf leatheroid. During the mango planting process, anthracnose, powdery mildew, mango gummosis and fruit rot and other diseases may be encountered, and pests such as brevifilis, scale insects, noctuid transversus, anthurium and striped leaf weevil and the like are also encountered, so that corresponding pesticides are required to be applied to prevent and control the pests and the diseases. In the mango planting process, plant growth regulators, leaf fertilizers and the like are also applied. These pesticides and foliar fertilizers may be applied by spraying. At present, no spreading agent suitable for mango trees is reported.
Disclosure of Invention
The invention aims to solve the technical problem of how to obviously reduce the contact angle and the surface tension between the pesticide liquid or the mist drops of the foliar fertilizer and the leaf surface of the mango, thereby improving the pesticide effect or the fertilizer effect, reducing the usage amount of the pesticide and the foliar fertilizer and reducing the environmental pollution.
In order to solve the technical problems, the invention provides a mango spreader.
The mango spreader provided by the invention comprises an active ingredient (effective ingredient) and an auxiliary material, wherein the active ingredient comprises polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate.
In the mango spreader, the proportion of the polyoxyethylene sorbitan monolaurate and the polyethylene glycol monolaurate can be determined by a person skilled in the art according to the effect of the mango spreader on improving the drug effect and the fertilizer effect of mango, for example, the mass ratio of the polyoxyethylene sorbitan monolaurate to the polyethylene glycol monolaurate can be 1: 1.
In the mango spreader, the mass ratio of the active ingredients to the auxiliary materials can be 3: 7.
In the mango spreader, the auxiliary materials can be wetting agents, antifoaming agents, preservatives and/or water.
In actual production, if the production amount of the spreading agent for mango is small, the defoaming agent is not needed, and if the production amount of the spreading agent for mango is large, the defoaming agent can be used.
In actual production, if the mango spreading agent is stored for a short time, the preservative can be omitted.
In the mango spreader, the auxiliary materials can be sodium dodecyl benzene sulfonate, dimethyl silicone oil, formaldehyde and water.
In the mango spreader, the mass ratio of the sodium dodecyl benzene sulfonate, the dimethyl silicone oil, the formaldehyde and the water in the auxiliary materials can be 6:1:1: 132.
In the mango spreader, the mango spreader can be prepared as follows: the preparation method of the mango spreader comprises the following steps: and mixing and homogenizing polyoxyethylene sorbitan monolaurate, polyethylene glycol monolaurate, sodium dodecyl benzene sulfonate, dimethyl silicone oil, formaldehyde and water according to the mass ratio to obtain the mango spreader.
In the preparation method, the homogenization can be colloid mill homogenization; the gap between a stator and a rotor adopted in the colloid mill homogenization is 2 microns, the linear speed of the rotor is 1000-1500 rpm, 1500-2000 rpm or 2000-2500 rpm, the homogenization time is 3-5 minutes, and the homogenization solution is kept stand for 1-2 hours at the temperature of below 40 ℃ to obtain the mango spreader.
The following P1 or P2 applications also belong to the scope of protection of the invention:
the application of P1, polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate in preparing the mango spreader;
use of P2, polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate to improve the efficacy of a medicament on mango and/or to improve the efficacy of foliar fertilisers on mango, said medicament being one which can be applied to mango by spraying.
In the above P1, the active ingredients of the mango spreader are polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate.
In order to solve the technical problems, the invention also provides a method for improving the pesticide effect of the pesticide on the mangoes and/or improving the fertilizer effect of the foliar fertilizer on the mangoes.
The method for improving the drug effect of a drug on mango and/or improving the fertilizer effect of a foliar fertilizer on mango comprises the steps of preparing the drug and/or the foliar fertilizer into a spray liquid, adding the mango spreader into the spray liquid, enabling the mass content of the mango spreader to be 0.12/1000-1.1/1000 (such as 0.1/1000-0.5/1000), obtaining a spray liquid containing the mango spreader, and applying the spray liquid containing the mango spreader to mango through spraying so as to improve the drug effect of the drug on mango and/or improve the fertilizer effect of the foliar fertilizer on mango; the agent is an agent that can be applied to mangoes by spraying.
In the above method, the agent may be a bactericide, an insecticide and/or a plant growth regulator.
The mango spreader is also a spraying aid and is a non-ionic aid.
The active ingredient of the mango spreader is fatty acid ester surfactant, so that the surface tension of water and liquid medicine can be reduced, the contact angle between liquid medicine fog drops and leaf surfaces can be reduced, and the maximum coverage can be achieved; therefore, the spreading, attaching and wetting functions of the pesticide spray liquid drops on the plant leaf surfaces are improved, and the pesticide can be more uniformly distributed on the mango leaves, so that the pesticide effect is improved, the using amount of the pesticide is reduced, and the environmental pollution is reduced. The mango spreader is suitable for various spray pesticides for mango trees, including insecticides, bactericides, herbicides, plant growth regulators, leaf fertilizers and the like. Experiments prove that the spreading agent for mango can obviously reduce the contact angle and the surface tension between the pesticide liquid or the mist drops of the foliar fertilizer and the leaf surface of mango, thereby improving the pesticide effect or the fertilizer effect, reducing the use amount of pesticide and the foliar fertilizer and reducing the environmental pollution.
The invention relates to a spreading agent which is researched and developed for improving the adhesion, expansion and wetting of mango tree pest prevention and control agent spraying mist drops on blades under the support of a national key research and development plan 'high-efficiency transmission and deposition mechanism and regulation and control of chemical pesticides to targets' (project number: 2017YFD0200300) and a basic scientific research service charge special fund (1630042017018) of Chinese tropical agricultural academy of sciences, and can be added into a diluted agent for spraying application.
Drawings
Figure 1 is the appearance of a spreading agent for difatty ester mango.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments, which are given for the purpose of illustration only and are not intended to limit the scope of the invention. The examples provided below serve as a guide for further modifications by a person skilled in the art and do not constitute a limitation of the invention in any way.
The experimental procedures in the following examples are conventional unless otherwise specified. Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
The polyoxyethylene monolaurate sorbitan of the following examples is available from Kao (Shanghai) trade company, Inc. under the trade list number RHEODOL TW-L120, CAS: 9005-64-5, purity of 100%. Color (Gardner) Gardner color 5, water content 2.7%, Acid Value 0.51mgKoH/g, Saponification Value Saponicification Xalue 44.2mgKoH/g, Hydroxyl Value Hydroxyl Value 101.7mgKoH/g, Specific Gravity 1.105.
Polyethylene glycol monolaurate in the following examples is available from Kao (Shanghai) trade company Limited under the catalog number EMANON 1112, CAS: 9004-81-3, color (APHA)25, Acid Value 0.28mgKoH/g, Ester Value 87.5mg KOH/g, Loss on Drying 0.01% and Residue on ignition 0.00%.
Sodium dodecylbenzenesulfonate in the following examples is sold by Shanghai King chemical company, catalog number NEOPELEX G-20, registration number of chemical abstracts: 696669-44-9, content 20%.
The dimethicone in the following examples is available from Shanghai Merlne biochemistry Ltd, CAS: 63148-62-9, viscosity is 100 + -8 Pa.s.
The aqueous formaldehyde solution in the following examples is a product of Dow Elkoda Chemicals, Inc., CAS: 50-00-0, content 40%.
Example 1 preparation of mango spreader
The inventor of the invention screens polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate from a large amount of existing fatty acid ester substances to serve as active ingredients of the mango spreader, and prepares the mango spreader (the mango spreader of the invention) capable of remarkably reducing contact angles between fog drops and mango leaf surfaces by adding auxiliary materials (such as wetting agents, antifoaming agents, preservatives and water).
1. The mango spread of the present invention
The mango spreader is named as a double fatty acid ester mango spreader and comprises an active ingredient and auxiliary materials, wherein the mass ratio of the active ingredient to the auxiliary materials is 3: 7. The active component consists of polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate in a mass ratio of 1: 1. The auxiliary materials comprise sodium dodecyl benzene sulfonate, dimethyl silicone oil, formaldehyde and water, wherein the mass ratio of the sodium dodecyl benzene sulfonate to the dimethyl silicone oil to the formaldehyde to the water is 6:1:1: 132.
The preparation method of the spreading agent for the double fatty acid ester mango comprises the following steps: adding 150g of mono-dodecanoic acid polyoxyethylene sorbitan and 150g of mono-dodecanoic acid polyethylene glycol ester into 652.5g of water, adding 30g of sodium dodecyl benzene sulfonate, 5g of dimethyl silicone oil and 12.5g of formaldehyde aqueous solution (the mass content of formaldehyde is 40%), and uniformly mixing to obtain a mixed solution; and injecting the mixed solution into a colloid mill for homogenization under the following conditions to obtain a homogenized solution: the gap between the stator and the rotor of the colloid mill is 2 microns, the linear speed of the rotor is 1000 rpm, and the homogenizing time is 3-5 minutes. Standing the homogeneous solution at 40 deg.C for 1-2 hr to obtain spreading agent for Mangifera indica double fatty acid ester. The spreading agent for the double fatty acid ester mango is a light yellow liquid, and the viscosity of the spreading agent is 33.22mPa.s (figure 1).
Distilled water was added to 1.1g of the spreading agent for mango bis fatty acid ester to a mass of 1000g of the solution, thereby obtaining a 1.1/1000 mass of spreading agent solution for mango bis fatty acid ester (No. A13).
Distilled water was added to 0.36g of the spreading agent for mango double fatty acid ester to a mass of 1000g of the solution, thereby obtaining a 0.36/1000 mass of spreading agent solution for mango double fatty acid ester (code B13).
Distilled water was added to 0.12g of the spreading agent for mango double fatty acid ester to obtain a solution (No. C13) of 0.12/1000 g of spreading agent for mango double fatty acid ester, which had a mass of 1000 g.
2. Two control mango spreaders
Two mango spreading agents tested in the screening experiment are listed below, which are respectively named as a single fatty acid ester mango spreading agent 1 and a single fatty acid ester mango spreading agent 2, and both consist of active ingredients and auxiliary materials, and the mass ratio of the active ingredients to the auxiliary materials is 3: 7. The auxiliary materials of the two are the same as the spreader for the double fatty acid ester mango, and consist of sodium dodecyl benzene sulfonate, dimethyl silicone oil, formaldehyde and water, wherein the mass ratio of the sodium dodecyl benzene sulfonate to the dimethyl silicone oil to the formaldehyde to the water is 6:1:1: 132. The spreading agent 1 and 2 for mango with mono-fatty acid ester are different from the spreading agent for mango with di-fatty acid ester of the present invention only in the difference of active ingredients. Fatty acid monoester the active ingredient of the spreading agent 1 for mango is polyoxyethylene sorbitan monolaurate. Fatty acid ester mango spreader 2 contains polyethylene glycol monolaurate as an active ingredient.
The preparation method of the spreading agent 1 for the monofatty acid ester mango comprises the following steps: adding 300g of mono-dodecanoic acid polyoxyethylene sorbitan into 652.5g of water, adding 30g of sodium dodecyl benzene sulfonate, 5g of dimethyl silicone oil and 12.5g of formaldehyde aqueous solution (the mass content of formaldehyde is 40%), and uniformly mixing to obtain a mixed solution; and injecting the mixed solution into a colloid mill for homogenization under the following conditions to obtain a homogenized solution: the gap between the stator and the rotor of the colloid mill is 2 microns, the linear speed of the rotor is 1000 rpm, and the homogenizing time is 3-5 minutes. Standing the homogeneous solution at 40 deg.C for 1-2 hr to obtain spreading agent 1 for monofatty acid ester mango.
The preparation method of the spreading agent 2 for the monofatty acid ester mango comprises the following steps: adding 300g of polyethylene glycol monolaurate into 652.5g of water, adding 30g of sodium dodecyl benzene sulfonate, 5g of dimethyl silicone oil and 12.5g of formaldehyde water solution (the mass content of formaldehyde is 40 percent), and uniformly mixing to obtain a mixed solution; and injecting the mixed solution into a colloid mill for homogenization under the following conditions to obtain a homogenized solution: the gap between the stator and the rotor of the colloid mill is 2 microns, the linear speed of the rotor is 1000 rpm, and the homogenizing time is 3-5 minutes. Standing the homogeneous solution at 40 deg.C for 1-2 hr to obtain spreading agent 2 for mango fatty acid monoester.
Distilled water was added to 1.1g of spreading agent 1 for monofatty acid ester mango until the mass of the solution became 1000g, to obtain a 1.1/1000 solution (No. X1) of spreading agent 1 for monofatty acid ester mango.
Distilled water was added to 0.36g of spreading agent 1 for monofatty acid ester mango until the mass of the solution became 1000g, to obtain a 0.36/1000 solution of spreading agent 1 for monofatty acid ester mango (No. X2).
Distilled water was added to 1.1g of spreading agent for monofatty acid ester mango 2 to a solution mass of 1000g, thereby obtaining a 1.1/1000 solution of spreading agent for monofatty acid ester mango 2 (No. Z1).
Distilled water was added to 0.36g of spreading agent for monofatty acid ester mango 2 to a solution mass of 1000g, to obtain a 0.36/1000 solution of spreading agent for monofatty acid ester mango 2 (No. Z2).
3. The contact angle of the spreading agent for the double fatty acid ester mango on mango leaves is obviously smaller than that of the spreading agent 1 for the single fatty acid ester mango and the spreading agent 2 for the single fatty acid ester mango
The spreading, attachment and wetting functions of mango with the spreading agent were evaluated by contact angle. The measurement is carried out by using a contact angle measuring instrument according to the following method: selecting 1 month-old mango tree Brilliant mango leaves with the size as consistent as possible, randomly mixing the leaves uniformly, randomly dividing the leaves into 16 groups, and each group comprises 6 leaves: spraying distilled water leaf front surface, spraying distilled water leaf back surface, spraying 1.1/1000 double fatty acid ester mango spreading agent solution leaf front surface, spraying 1.1/1000 double fatty acid ester mango spreading agent solution leaf back surface, spraying 0.36/1000 double fatty acid ester mango spreading agent solution leaf front surface, spraying 0.36/1000 double fatty acid ester mango spreading agent solution leaf back surface, spraying 0.12/1000 double fatty acid ester mango spreading agent solution leaf front surface, spraying 1.1/1000 single fatty acid ester spreading agent 1 solution leaf front surface, spraying 1.1/1000 single fatty acid ester mango spreading agent 1 solution leaf back surface, spraying 0.36/1000 single fatty acid ester mango spreading agent 1 solution leaf front surface, spraying 0.36/1000 single fatty acid ester mango spreading agent solution leaf front surface, spraying and treating, The method comprises the steps of carrying out leaf back spraying treatment on a spreading agent 1 solution for 0.36/1000 mono fatty acid ester mango, carrying out leaf front spraying treatment on a spreading agent 2 solution for 1.1/1000 mono fatty acid ester mango, carrying out leaf back spraying treatment on a spreading agent 2 solution for 1.1/1000 mono fatty acid ester mango, carrying out leaf front spraying treatment on a spreading agent 2 solution for 0.36/1000 mono fatty acid ester mango, and carrying out leaf back spraying treatment on a spreading agent 2 solution for 0.36/1000 mono fatty acid ester mango. The operation of each treatment was identical except that the liquid applied to the leaves was different.
Every group takes 6 fresh mango leaves on the slide glass, and 3 are placed with the back of the leaf upwards to the front of the leaf. The slide glass was placed on a contact angle measuring instrument (model JC2000D1, manufactured by Shanghai-Zhongchen digital technology Equipment Co., Ltd.), the liquid medicine to be measured was taken with a sample injector and placed on the contact angle measuring instrument, 2. mu.l of the liquid medicine was dropped on the front and back of mango leaves, respectively, the contact angle value of the liquid medicine at 5min of mango leaves was measured with the contact angle measuring instrument, and the measurement was repeated 3 times for each liquid medicine to find the average value. The liquid medicines to be detected are distilled water, a 1.1/1000 double fatty acid ester mango spreader solution, a 0.36/1000 double fatty acid ester mango spreader solution, a 0.12/1000 double fatty acid ester mango spreader solution, a 1.1/1000 mono fatty acid ester mango spreader 1 solution, a 0.36/1000 mono fatty acid ester mango spreader 1 solution, a 1.1/1000 mono fatty acid ester mango spreader 2 solution and a 0.36/1000 mono fatty acid ester mango spreader 2 solution respectively.
The results show that at the same dilution, the contact angle of the spreading agent for the double fatty acid ester mango with the front surface of the leaf and the contact angle of the spreading agent for the double fatty acid ester mango with the back surface of the leaf are both significantly smaller than that of the spreading agent 1 for the single fatty acid ester mango and the spreading agent 2 for the single fatty acid ester mango. For example, the contact angle of 1.1/1000 fatty acid diester mango leaf spray treated by the spreading agent is 24.86 degrees smaller than that of 1.1/1000 fatty acid monoester mango leaf spray treated by the spreading agent 1 solution (74.82-49.96 is 24.86 degrees), and the contact angle of 1.1/1000 fatty acid monoester mango leaf spray treated by the spreading agent 2 solution is 22.59 degrees smaller (72.55-49.96 is 22.59 degrees); 1.1/1000 of the contact angle of the spreading agent for mango sprayed on the back of the leaf is 6.70 degrees (75.21-68.51 is 6.70 degrees) less than that of the spreading agent for mango 1 solution sprayed on the back of the leaf, and 7.71 degrees (76.22-68.51 is 7.71 degrees) less than that of the spreading agent for mango 2 solution sprayed on the back of the leaf (Table 1-3).
TABLE 1 variation of contact angle of spreading agent for difatty acid ester mango on mango leaves at different dilution concentrations
Numbering Treatment liquid Spraying treatment contact angle (degree) on front surface of blade Spraying treatment contact angle (degree) on back of blade
CK Distilled water 74.00 93.59
A13 1.1/1000 double fatty acid ester spreading agent solution for mango 49.96 68.51
B13 0.36/1000 double fatty acid ester mango spreader solution 44.26 62.78
C13 0.12/1000 double fatty acid ester mango spreader solution 36.75 50.36
TABLE 2 variation of contact angle of spreading agent 1 for mono fatty acid ester mango on mango leaves at different dilution concentrations
Numbering Treatment liquid Spraying treatment contact angle (degree) on front surface of blade Spraying treatment contact angle (degree) on back of blade
CK Distilled water 74.00 93.59
X1 1.1/1000 fatty acid monoester mango spreader 1 solution 74.82 75.21
X2 0.36/1000 mono fatty acid ester mango spreader 1 solution 88.86 81.42
TABLE 3 variation of contact angle of spreading agent 2 for mono fatty acid ester mango on mango leaves at different dilution concentrations
Numbering Treatment liquid Spraying treatment contact angle (degree) on front surface of blade Spraying treatment contact angle (degree) on back of blade
CK Distilled water 74.00 93.59
Z1 1.1/1000 fatty acid monoester mango spreader 1 solution 72.55 76.22
Z2 0.36/1000 mono fatty acid ester mango spreader 1 solution 82.08 81.23
4. Spreading effect of spreading agent for double fatty acid ester mango on different medicaments
The spreading effect of the spreading agent for the double fatty acid ester mango on different agents is illustrated below by taking spinetoram (bactericide, the united states of the terres Yinong company), pyraclostrobin (bactericide, basf plant protection (Jiangsu) Co., Ltd.), gibberellic acid (plant growth regulator, Shanghai Tongri Biotech Co., Ltd.) as an example. The names, specifications, dosage forms and dilution multiples of tested medicaments are shown in table 4, the number of the liquid medicament in table 4 indicates the liquid medicament sprayed on the leaves, the liquid medicament is obtained by diluting the medicament of the corresponding dosage form to the corresponding dilution multiple (mass multiple) by using distilled water, for example, first 3 indicates the liquid medicament obtained by diluting an spinetoram suspending agent by using distilled water by 1000 times according to the mass, and the liquid medicament is called as a spinetoram suspending agent 1000 times dilution liquid for short; a second 3 represents a liquid medicine obtained by diluting the spinetoram suspending agent by using distilled water by 2000 times according to the mass, and is called as spinetoram suspending agent 2000 times diluent for short; a third 3 is a liquid medicine obtained by diluting the spinetoram suspending agent by distilled water by 5000 times according to the mass, which is called as a 5000-time dilution liquid of the spinetoram suspending agent for short; secondly, 3 represents a liquid medicine obtained by diluting pyraclostrobin missible oil by 1000 times according to the mass by using distilled water, which is called as a 1000-time diluent of the pyraclostrobin missible oil for short; secondly 3, a liquid medicine obtained by diluting pyraclostrobin missible oil by 2000 times according to the mass of distilled water is called pyraclostrobin missible oil 2000 times diluent for short; third 3, the liquid medicine obtained by diluting the gibberellic acid missible oil by 500 times according to the mass of distilled water is called as 500 times diluted liquid of the gibberellic acid missible oil for short; third 3 is the liquid medicine obtained by diluting the gibberellic acid missible oil by 1000 times according to the mass of distilled water, which is called as 1000 times of the gibberellic acid missible oil diluent for short; and third 3, the liquid medicine obtained by diluting the gibberellic acid missible oil by 4000 times according to the mass of distilled water is called as 4000 times diluted liquid of the gibberellic acid missible oil for short.
Adding a spreader for double fatty acid ester mango into 1000-fold diluent of the spinetoram suspending agent to enable the content of the spreader for double fatty acid ester mango to be 0.12/1000, and obtaining a liquid named as 1000-fold diluent of the spinetoram suspending agent plus the spreader, wherein the number of the spreader is first C; adding a spreader for double fatty acid ester mango into 2000 times of diluent of the spinetoram suspending agent to enable the content of the spreader for double fatty acid ester mango to be 0.12/1000, and obtaining a liquid named as 2000 times of diluent of the spinetoram suspending agent plus the spreader, wherein the number of the spreader is methyl (C); adding a spreader for double fatty acid ester mango into 5000 times of diluent of spinetoram suspending agent to enable the content of the spreader for double fatty acid ester mango to be 0.12/1000, and naming the obtained liquid as 5000 times of diluent of spinetoram suspending agent plus spreader, wherein the serial number of the spreader is methyl C; adding a spreader for the double fatty acid ester mango into 1000-time diluent of pyraclostrobin missible oil to enable the content of the spreader for the double fatty acid ester mango to be 0.12/1000, and naming the obtained liquid as 1000-time diluent of the pyraclostrobin missible oil plus the spreader, wherein the serial number of the liquid is B (first C); adding a spreader for mangoes with di-fatty acid ester into 2000-fold diluent of pyraclostrobin missible oil to enable the content of the spreader for mangoes with di-fatty acid ester to be 0.12/1000, and naming the obtained liquid as the 2000-fold diluent of pyraclostrobin missible oil and the spreader with the serial number of B & lt C & gt; adding a spreading agent for double fatty acid ester mango into 500 times of the gibberellic acid missible oil diluent to enable the content of the spreading agent for double fatty acid ester mango to be 0.12/1000, and obtaining a liquid named as 500 times of the gibberellic acid missible oil diluent and the spreading agent, wherein the serial number of the liquid is third (C); adding a spreader for double fatty acid ester mango into 1000-fold diluent of gibberellic acid missible oil to enable the content of the spreader for double fatty acid ester mango to be 0.12/1000, and naming the obtained liquid as 1000-fold diluent of gibberellic acid missible oil plus the spreader, wherein the serial number of the spreader is third to fourth; adding the spreading agent for the double fatty acid ester mango into 4000-fold diluent of gibberellic acid missible oil to enable the content of the spreading agent for the double fatty acid ester mango to be 0.12/1000, and obtaining the liquid named as 4000-fold diluent of gibberellic acid missible oil plus the spreading agent, wherein the serial number of the liquid is third to third.
TABLE 4 medicinal liquid
Figure BDA0002096511560000081
In Table 5, the liquid numbered CK is distilled water; the liquid with the number of C13 is a spreading agent solution for mango containing fatty acid diester of 0.12/1000 obtained by adding distilled water to 0.12g of spreading agent for mango containing fatty acid diester until the mass of the solution reaches 1000 g.
The spreading effect of the spreading agent for the bis-fatty acid ester mango on different agents was evaluated by contact angle and surface tension. The contact angle was measured as follows: the measurement was carried out by using a contact angle measuring instrument (model JC2000D1, manufactured by Shanghai Med digital technology Equipment Co., Ltd.) according to the following method: selecting 1 month-old mango tree Brilliant mango leaves with the size as consistent as possible, randomly mixing the leaves uniformly, randomly dividing the leaves into 18 groups, and each group comprises 6 leaves: a distilled water leaf front spray treatment group (test No. 1 in table 5, liquid of code CK on the leaf front spray) and a distilled water leaf back spray treatment group (test No. 1 in table 5, liquid of code CK on the leaf back spray), a 0.12/1000 fatty acid diester mango spreader solution (code C13) a leaf front spray treatment group (test No. 2 in table 5, liquid of code C13 on the leaf front spray), a 0.12/1000 fatty acid diester mango spreader solution leaf back spray treatment group (test No. 2 in table 5, liquid of code C13 on the leaf back spray treatment group in table 5), an ethyl spinosyn suspending agent 1000-fold diluent leaf front spray treatment group (test No. 3 in table 5, liquid of code first 3 on the leaf front spray), an ethyl spinosyn suspending agent 1000-fold diluent leaf back spray treatment group (test No. 3 in table 5, spraying liquid with the number of A3 on the back of leaves), spraying a 2000-time diluent of a spinetoram suspending agent on the front of the leaves (the test number of 4 in Table 5, spraying liquid with the number of A3 on the front of the leaves), spraying a 2000-time diluent of the spinetoram suspending agent on the back of the leaves (the test number of 4 in Table 5, spraying liquid with the number of A3 on the back of the leaves), spraying a 5000-time diluent of a spinetoram suspending agent on the front of the leaves (the test number of 5 in Table 5, spraying liquid with the number of A3 on the front of the leaves), spraying a 5000-time diluent of a spinetoram suspending agent on the back of the leaves (the test number of 5 in Table 5, spraying liquid with the number of A3 on the back of the leaves), spraying a 1000-time diluent of pyraclostrobin missible oil on the front of the leaves (the test number of 6 in Table 5, spraying and spraying liquid with the serial number of second 3 on the front surface of the blade, spraying and treating a group of 1000-time diluted liquid azoxystrobin missible oil on the back surface of the blade (the test serial number is 6 in table 5, spraying and treating liquid with the serial number of second 3 on the back surface of the blade), spraying and treating a group of 2000-time diluted liquid azoxystrobin missible oil on the front surface of the blade (the test serial number is 7 in table 5, spraying and treating liquid with the serial number of second 3 on the back surface of the blade (the test serial number is 7 in table 5), spraying and treating a group of 500-time diluted liquid gibberellic acid missible oil on the front surface of the blade (the test serial number is 8 in table 5, spraying and treating liquid with the serial number of third 3 on the front surface of the blade), spraying and treating a group of 500-time diluted liquid azoxystrobin missible oil on the back surface of the blade (the test serial number is 8 in table 5, spraying and treating liquid with the serial number of third 3 on the back, A 1000-time dilution liquid leaf front spray treatment group of gibberellic acid emulsifiable concentrates (test number is 9 in table 5, liquid of which the spray number is third to 3 is sprayed on the leaf front), a 1000-time dilution liquid leaf back spray treatment group of gibberellic acid emulsifiable concentrates (test number is 9 in table 5, liquid of which the spray number is third to 3 is sprayed on the leaf back), a 4000-time dilution liquid leaf front spray treatment group of gibberellic acid emulsifiable concentrates (test number is 10 in table 5, liquid of which the spray number is third to 3 is sprayed on the leaf front), a 4000-time dilution liquid leaf back spray treatment group of gibberellic acid emulsifiable concentrates (test number is 10 in table 5, liquid of which the spray number is third to 3 is sprayed on the leaf back), a 1000-time dilution liquid of ethyl pleocidin suspending agents + a spreading agent leaf spray front treatment group (test number is 11 in table 5, liquid of which the spray number is first to C is sprayed on the leaf front), a 1000-time dilution liquid of ethyl pleocidin suspending agents + spreading agent spray treatment group of which the spraying agent leaf back (test number is 11 in table 5, spraying liquid with the number of A (C) on the back of leaves, spraying liquid with the number of A (C) on the front of leaves, 2000 times of spinetoram suspending agent, diluting liquid with the number of A (C) on the front of leaves, spraying treatment group with the number of 2000 times of spinetoram suspending agent, spraying treatment group with the back of leaves, spraying treatment group with the number of spread agent, spraying treatment group with the number of 13 on the front of leaves, spraying treatment group with the number of A (C) on the front of leaves, spraying treatment group with the number of 5000 times of spinetoram suspending agent, spraying treatment group with the number of A (C) on the back of leaves, spraying treatment group with the number of 13 on the back of leaves, spraying treatment group with the number of A (C) on the back of leaves, spraying treatment group with the number of 1000 times of pyraclostrobin missible oil, diluting liquid with the number of spread agent, spraying treatment group with the front of leaves, spraying treatment group with the number of 14 on the number of 1000 times of pyraclostrobin, spraying and spraying a liquid with a serial number of B & ltC & gt on the front surface of the blade, spraying and treating a group of 1000-time diluent of pyraclostrobin missible oil and spraying and treating the back surface of a spreading agent blade (the test serial number of 14 in Table 5, spraying and treating a liquid with a serial number of B & ltC & gt on the back surface of the blade), spraying and treating a group of 2000-time diluent of pyraclostrobin missible oil and spraying and treating the back surface of a spreading agent blade (the test serial number of 15 in Table 5, spraying and treating a group of second & ltC & gt on the back surface of a blade (the test serial number of 16 in Table 5, spraying and treating a liquid with a serial number of C on the front surface of a blade), spraying and treating a group of 500-time diluent of gibberellic acid missible oil and spraying and treating the back surface of a spreading agent blade (the test serial number of 16 in Table 5), spraying liquid with the number of third C on the back of the leaves), 1000 times of diluent of gibberellic acid missible oil, a spreading agent leaf front spraying treatment group (the test number of the table 5 is 17, spraying liquid with the number of third C on the front of the leaves), 1000 times of diluent of gibberellic acid missible oil, a spreading agent leaf back spraying treatment group (the test number of the table 5 is 17, spraying liquid with the number of third C on the back of the leaves), 4000 times of diluent of gibberellic acid missible oil, a spreading agent leaf front spraying treatment group (the test number of the table 5 is 18, spraying liquid with the number of third C on the front of the leaves), 4000 times of gibberellic acid missible oil, a spreading agent leaf back spraying treatment group (the test number of the table 5 is 18, and spraying liquid with the number of third C on the back of the leaves). The operation of each treatment group was identical except that the liquid sprayed onto the leaves was different.
Every group takes 6 fresh mango leaves on the slide glass, and 3 are placed with the back of the leaf upwards to the front of the leaf. The slide glass was placed on a contact angle measuring instrument (model JC2000D1, manufactured by Shanghai-Zhongchen digital technology Equipment Co., Ltd.), the liquid medicine to be measured was taken with a sample injector and placed on the contact angle measuring instrument, 2. mu.l of the liquid medicine was dropped on the front and back of mango leaves, respectively, the contact angle value of the liquid medicine at 5min of mango leaves was measured with the contact angle measuring instrument, and the measurement was repeated 3 times for each liquid medicine to find the average value. The liquid medicine to be measured is 18 kinds of liquid with serial numbers of CK, C13, first 3, third 3, second 3, third 3, first C, second C, third C and third C.
The surface tension of the following 18 liquids to be measured was measured by platinum plate method using a fully automatic tensiometer (model No. JK99F, manufactured by shanghai midmorning digital technology equipment, ltd): the serial numbers are CK, C13, first (3), second (3), third (3), second (3), third (3), first (C), second (C), third (C), second (C), third (C) and third (C), which are 18 kinds of liquid. Before the experiment begins, the weight of the full-automatic tensiometer needs to be corrected, and a platinum plate needs to be cleaned and burned when each sample is measured.
The result shows that the mango spreader-difatty acid ester mango spreader can remarkably reduce the contact angle between an ethyl spinosad (bactericide), pyraclostrobin (bactericide) and gibberellic acid (plant growth regulator) spray liquid and mango leaves, for example, the contact angle between an ethyl spinosad suspending agent 1000 times diluent and a spreader leaf front spraying treatment group (the test number in table 5 is 11, the liquid with the spray number of first C is sprayed on the leaf front) is 27.88 degrees, the contact angle between the ethyl spinosad suspending agent 1000 times diluent and the leaf front spraying treatment group (the test number in table 5 is 3, and the liquid with the spray number of first 3 is sprayed on the leaf front) is 51.08 degrees, and the mango spreader reduces the contact angle between a liquid medicine and the mango leaf front by 45.4% (51.08-27.88)/51.08%); the contact angle of the ethyl spinosyn suspending agent 1000 times of the diluent and the spreading agent spraying treatment group on the back of the leaves (the test number in table 5 is 11, the spraying and spraying liquid with the number of first C on the back of the leaves) is 8.26 degrees, the contact angle of the ethyl spinosyn suspending agent 1000 times of the diluent and the spraying treatment group on the back of the leaves (the test number in table 5 is 3, the spraying and spraying liquid with the number of first 3 on the back of the leaves) is 38.18 degrees, and the contact angle of the liquid medicine and the back of the mango leaves is reduced by 78.4 percent (38.18-8.26)/38.18 percent (78.4 percent) by the spreading agent for mango; the contact angle of the pyraclostrobin missible oil 1000 times of the diluent and the spreading agent in the leaf front spraying treatment group (the test number is 14 in table 5, the liquid with the code of B & ltr & gt C is sprayed on the leaf front side) is 19.58 degrees, the contact angle of the pyraclostrobin missible oil 1000 times of the diluent and the leaf front spraying treatment group (the test number is 6 in table 5, the liquid with the code of B & ltr & gt 3 & gt is sprayed on the leaf front side) is 38.00 degrees, and the contact angle of a liquid medicine and the mango leaf front side is reduced by 48.5 percent (38.00-19.58)/38.00 & ltr & gt 48.5 percent) by the spreading agent for mango; the contact angle of the 4000-time diluent of the gibberellic acid missible oil and the leaf front spraying treatment group (the test number in table 5 is 18, and the spraying number of the liquid of the third generation C is sprayed on the leaf front) is 23.95 degrees, and the contact angle of the 4000-time diluent of the gibberellic acid missible oil and the leaf front spraying treatment group (the test number in table 5 is 10, and the spraying number of the liquid of the third generation C is 3 on the leaf front) is 46.19 degrees, so that the contact angle of the liquid medicine and the mango leaf front is reduced by 48.1% (46.19-23.95)/46.19 ═ 48.1%) by the spreading agent for mango.
The surface tension of each medicament is smaller than that of distilled water (64.630mN/M), namely the extension effect of the liquid drop of each medicament on plant leaves is better than that of the distilled water; along with the increase of the dilution times of the medicaments, the surface tension of the liquid medicament is also slightly increased; the surface tension of the liquid medicine is different and has larger difference between different concentrations of the same medicament and between different medicaments, namely the extension conditions of liquid drops with different concentrations of the same medicament and liquid drops with different medicaments on plant leaves are different; the mango spreader disclosed by the invention has the function of reducing the surface tension of pesticide drops, and shows that the spreading speed of pesticide drops on plant leaves is increased after the mango spreader is compounded with pesticide (Table 5).
TABLE 5 contact angles for the tests and surface tensions of the liquids
Figure BDA0002096511560000111
Example 2 spreading agent for mango of the present invention-spreading agent for mango with double fatty acid ester for improving the efficacy of insecticide on mango
The field test is carried out in Miscanthus orchard in Adinance, Mitsui, Hainan province. Randomly selecting 200 healthy Brilliant mango trees without diseases and insect pests, wherein the tree age is more than ten years, and the trees are randomly divided into two treatment groups, wherein each group comprises 100 trees: the spreader group and spreader group were not used. The two treatment groups have the same operation except that the sprayed liquid medicines are different. On 19 days after 7 months without using a spreader group, each plant is sprayed with 600 times of diluent of 40% chlorpyrifos emulsifiable solution, each plant is sprayed with 10000 times of diluent of emamectin benzoate (5% water dispersible granules), and each plant is sprayed with 2000 times of diluent of 8% indoxacarb and 8% tebufenozide emulsifiable solution. The spreader group comprises that each plant is sprayed with 600 times of diluent of 40% chlorpyrifos emulsifiable solution plus the spreader, 10000 times of diluent of emamectin benzoate (5% water dispersible granules) plus the spreader, and 2000 times of diluent of 8% indoxacarb plus 8% tebufenozide emulsifiable solution plus the spreader in 7 months and 19 days. In 26 days after 7 months, randomly selecting 5 mango trees for investigation in each treatment, wherein the thrips investigation method comprises the steps of selecting a cluster of twigs from each mango tree in three directions, selecting 5 leaves on the top of each cluster of twigs, and investigating the number of thrips on each leaf; the investigation method of the mango transverse striated tail moths is characterized in that 3 clusters of twigs are respectively selected from each mango tree in three directions, and the quantity of the mango transverse striated tail moths on each cluster of twigs is investigated.
Wherein, the 600-time diluent of the 40% chlorpyrifos emulsifiable solution is a liquid medicine obtained by diluting the 40% chlorpyrifos emulsifiable solution with distilled water by 600 times according to the mass; the 600-fold dilution of 40% chlorpyrifos emulsifiable concentrate + spreader is a liquid obtained by adding the spreader for difatty acid ester mango of example 1 to the 600-fold dilution of 40% chlorpyrifos emulsifiable concentrate so that the content of the spreader for difatty acid ester mango is 0.24/1000. The 10000-time dilution of emamectin benzoate (5% water dispersible granule) is liquid medicine obtained by diluting the emamectin benzoate (5% water dispersible granule) with distilled water by 10000 times according to the mass; the 10000-fold dilution of emamectin benzoate (5% water dispersible granule) plus the spreader is a liquid obtained by adding the spreader for difatty acid ester mango of example 1 into the 10000-fold dilution of emamectin benzoate (5% water dispersible granule) to make the content of the spreader for difatty acid ester mango be 0.24/1000. The 2000-time diluent of the 8% indoxacarb and 8% tebufenozide missible oil is a liquid medicine obtained by diluting the 8% indoxacarb and 8% tebufenozide missible oil by 2000 times according to the mass of distilled water; the 2000-fold dilution of 8% indoxacarb + 8% tebufenozide missible oil and the spreader are liquids obtained by adding the spreader for mango with the difatty acid ester of example 1 into the 2000-fold dilution of 8% indoxacarb + 8% tebufenozide missible oil, so that the content of the spreader for mango with the difatty acid ester is 0.24/1000.
The significance analysis of the differences between the two sets of data was performed using SPSS12.0(SPSS inc., USA) software.
The experimental result shows that the thrips control effect of the group without the spreader is 82.46 percent, and the thrips control effect of the group without the spreader is 89.78 percent; the control effect of the Spodoptera transversa without using the spreader group is 79.71%, and the control effect of the Spodoptera transversa in the spreader group is 90.64%. The results show that the spreading agent for the mangoes with the double fatty acid ester is added into the liquid medicine which is normally applied, the addition amount is 0.24/1000, and the control effect of the pesticide on the pests of the mangoes trees (thrips and cross-striated noctuids) can be obviously improved (Table 6).
TABLE 6 comparison of the effect of using the spreading agent after 7 days with and without spreading agent
Figure BDA0002096511560000131
Note: in the table, capital English letters in the same column indicate the degree of difference, there is no significant difference at the 0.05 level between treatments with the same letter, and there is a significant difference at the 0.05 level between treatments with different letters.
Example 3 spreading agent for mango of the present invention-spreading agent for mango with double fatty acid ester for improving the efficacy of insecticide on mango
The field test is carried out in Miscanthus orchard in Adinance, Mitsui, Hainan province. Selecting 12 mango trees with the tree ages of more than 10 years. The test is totally provided with 4 treatments of a normal concentration group (recommended concentration) without using a spreading agent, a normal concentration group (N1+ recommended concentration) with using the spreading agent, a group (2 times recommended concentration) with 2 times of the normal concentration without using the spreading agent and a blank group, each treatment is carried out on 3 mango trees, and the 4 treatment groups have the same operation except that sprayed liquid medicine is different. Spraying 400-time diluent of 60g/L spinetoram (Ellzium) per plant in 8 months and 3 days without using a spreading agent normal concentration group; the normal concentration group of the spreader is used for 8 months and 3 days, 400 times of diluent and the spreader of 60g/L spinetoram (El) are sprayed on each plant, the normal concentration group of the spreader is not used for 8 months and 3 days, 200 times of diluent of 60g/L spinetoram (El) is sprayed on each plant, and no medicament is used in the blank group. And (3) surveying the number of thrips on each mango tree in 8 months and 6 days, wherein the thrips surveying method comprises the steps of respectively selecting a cluster of twigs in three directions of each mango tree, selecting 5 leaves on the top of each cluster of twigs, and surveying the number of thrips on each leaf.
Wherein the 400-time dilution liquid of 60g/L spinetoram (Elgreen) is a liquid medicine obtained by diluting 60g/L spinetoram with distilled water by 400 times according to mass; the 60g/L of 400-fold dilution of spinetoram (Ellstrex) + spreader is a liquid obtained by adding the spreader for mango bis fatty acid ester of example 1 to 60g/L of 400-fold dilution of spinetoram so that the mass content of the spreader for mango bis fatty acid ester is 1/1000; the 200-time dilution liquid of 60g/L spinetoram (Elgreen) is a liquid medicine obtained by diluting 60g/L spinetoram by 200 times according to mass with distilled water; the test results are shown in Table 7.
TABLE 7 synergistic effect of the spreader on the prevention and treatment of thrips of mango trees
Figure BDA0002096511560000141
Note: data in the same column were not significantly different for the same lower case (P <0.05) and were significantly different for the same upper case (P < 0.01).
The experimental result shows that the average control effect of the thrips in the group without the spreading agent with normal concentration is 75.77 percent, and the average control effect of the thrips in the group with the spreading agent with normal concentration is 86.90 percent; the average control effect of thrips in the group without the spreader 2 times the normal concentration is 93.30%. The results show that the spreading agent for the mango with the double fatty acid ester is added into the liquid medicine for normal application, the addition amount is 1/1000, and the control effect of the pesticide on mango tree pests (thrips) can be obviously improved (Table 7).
The present invention has been described in detail above. It will be apparent to those skilled in the art that the invention can be practiced in a wide range of equivalent parameters, concentrations, and conditions without departing from the spirit and scope of the invention and without undue experimentation. While the invention has been described with reference to specific embodiments, it will be appreciated that the invention can be further modified. In general, this application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. The use of some of the essential features is possible within the scope of the claims attached below.

Claims (10)

1. The mango spreader consists of an active ingredient and an auxiliary material, wherein the active ingredient consists of polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate.
2. The mango spreader according to claim 1, wherein: in the active ingredients, the mass ratio of the polyoxyethylene sorbitan monolaurate to the polyethylene glycol monolaurate is 1: 1.
3. Spreading agent for mangoes according to claim 1 or 2, characterized in that: the mass ratio of the active ingredients to the auxiliary materials is 3: 7.
4. Mango spreader according to claim 1, 2 or 3, characterized in that: the auxiliary materials are wetting agents, defoaming agents, preservatives and/or water.
5. The mango spreader according to claim 4, wherein: the auxiliary materials consist of sodium dodecyl benzene sulfonate, dimethyl silicone oil, formaldehyde and water.
6. The mango spreader according to claim 5, wherein: in the auxiliary materials, the mass ratio of the sodium dodecyl benzene sulfonate, the dimethyl silicone oil, the formaldehyde and the water is 6:1:1: 132.
7. The mango spreader according to claim 5 or 6, wherein: the mango spreader is prepared according to the method of claim 8.
8. The preparation method of the mango spreader of claim 5 or 6, comprising the steps of: mixing and homogenizing polyoxyethylene sorbitan monolaurate, polyethylene glycol monolaurate, sodium dodecylbenzene sulfonate, dimethyl silicone oil, formaldehyde and water to obtain the mango spreader of claim 4 or 5.
9, P1, P2 or P3:
the application of P1, polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate in preparing the mango spreader;
the use of P2, polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate to improve the efficacy of a medicament on mango and/or to improve the efficacy of foliar fertilisers on mango, the medicament being one which can be applied to mango by spraying;
p3, polyoxyethylene sorbitan monolaurate and polyethylene glycol monolaurate are applied to the prevention and treatment of mango insect pests and/or diseases.
10. The method for improving the pesticide effect of the pesticide on the mangoes and/or improving the fertilizer effect of the foliar fertilizer on the mangoes is characterized by comprising the following steps: the method comprises the steps of preparing a medicament and/or a foliar fertilizer into a spray liquid, adding the mango spreader of any one of claims 1 to 7 into the spray liquid to enable the mass content of the mango spreader to be 0.12/1000-1.1/1000, obtaining the spray liquid containing the mango spreader, and applying the spray liquid containing the mango spreader to mango by spraying so as to improve the pesticide effect of the medicament on mango and/or improve the fertilizer effect of the foliar fertilizer on mango; the agent is an agent that can be applied to mangoes by spraying.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030125212A1 (en) * 2000-04-10 2003-07-03 Katsuhiko Yamaguchi Wetting agent composition for agricultural chemicals
JP2012184187A (en) * 2011-03-04 2012-09-27 Kao Corp Validity-strengthening agent composition for pesticide
CN103188932A (en) * 2010-09-03 2013-07-03 花王株式会社 Filming agent composition for agricultural chemical
CN103209588A (en) * 2010-09-03 2013-07-17 花王株式会社 Method for producing agricultural crop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030125212A1 (en) * 2000-04-10 2003-07-03 Katsuhiko Yamaguchi Wetting agent composition for agricultural chemicals
CN103188932A (en) * 2010-09-03 2013-07-03 花王株式会社 Filming agent composition for agricultural chemical
CN103209588A (en) * 2010-09-03 2013-07-17 花王株式会社 Method for producing agricultural crop
JP2012184187A (en) * 2011-03-04 2012-09-27 Kao Corp Validity-strengthening agent composition for pesticide

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