CN112314599A - Composite synergist for biological pesticide - Google Patents
Composite synergist for biological pesticide Download PDFInfo
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- CN112314599A CN112314599A CN202011253011.2A CN202011253011A CN112314599A CN 112314599 A CN112314599 A CN 112314599A CN 202011253011 A CN202011253011 A CN 202011253011A CN 112314599 A CN112314599 A CN 112314599A
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- pesticide
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- sulfonate
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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
- A01N25/24—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 containing ingredients to enhance the sticking of the active ingredients
-
- 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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
-
- 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
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
- A01N63/22—Bacillus
- A01N63/23—B. thuringiensis
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Agronomy & Crop Science (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Virology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a biological pesticide and the application field thereof, in particular to a biological pesticide composite synergist, which comprises the following raw materials in percentage by mass: 2-10% of esterified vegetable oil, 1-6% of sulfonate, 2-10% of organic silicon and the balance of water. The composite synergist can obviously reduce the contact angle of the pesticide liquid and the surface tension of the pesticide liquid, enhance the spreading property and the adhesion of the pesticide on plant leaves, improve the permeability of the pesticide liquid, reduce the drug resistance of pests, can be combined with a biological insecticide to kill insects, can also be combined with a biological herbicide to weed, can be matched with various biological pesticides for use, and has wide application range.
Description
Technical Field
The invention relates to a biological pesticide and the application field thereof, in particular to a biological pesticide composite synergist.
Background
The pesticide synergist is an important auxiliary agent in pesticide processing, and mainly inhibits or weakens the effects of detoxification, phytotoxicity prevention and the like of targets (pests, weeds, germs and the like) on the pesticide activity, delays the metabolic rate of the pesticide in a control object, and further increases the biological control effect.
The synergist is mixed with pesticide to increase the wettability and adhesion of pesticide to insect and plant, and the insect and plant have one waxy protecting layer on their surface for their own protection.
After decades of development, biopesticide synergist reaches a certain level, however, how to better exert pesticide effect is a problem facing and to be solved at present. The research shows that the current biopesticide synergist still has the following defects: poor penetration (wetting); the spreadability is poor; the adhesiveness is poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a biological pesticide composite synergist which can effectively reduce the surface tension of pesticides, enhance the spreading property and the adhesion of the pesticides on plant leaves and improve the permeability of liquid medicines.
In order to achieve the purpose, the technical scheme of the invention is as follows, the composite synergist of the biological pesticide comprises the following raw materials in percentage by mass: 2-10% of esterified vegetable oil, 1-6% of sulfonate, 2-10% of organic silicon and the balance of water.
Further, the raw materials and the mass fraction are as follows: 6% of esterified vegetable oil, 4% of sulfonate, 6% of organic silicon and the balance of water.
Further, the esterified vegetable oil is one or more of cottonseed oil, soybean oil and sunflower oil.
Further, the esterified vegetable oil is cottonseed oil.
Further, the biological pesticide is one of a bacillus thuringiensis insecticide and a mesotrione liquid medicine.
Further, the sulfonate is one of sodium alkyl benzene sulfonate and sodium alkyl sulfonate.
Further, the sulfonate is sodium dodecyl sulfate.
The invention has the beneficial effects that:
1. the invention provides a biological pesticide composite synergist, which can obviously reduce the contact angle and surface tension of a liquid pesticide, enhance the spreading property and adhesion of the pesticide on plant leaves, improve the permeability of the liquid pesticide, reduce the drug resistance of pests, can be used for killing insects by combining with the biological pesticide, can also be used for weeding by combining with a biological herbicide, can be matched with various biological pesticides, and has wide application range.
2. The esterified vegetable oil is combined with the sulfonate serving as the emulsifier, so that the weeding effect of the pesticide is more obvious, and the esterified vegetable oil is suitable for popularization and application in a drought environment; the organic silicon has no electric charge, has inertia, can be mixed with most biological pesticides for use, has obvious pesticide synergism, and has obvious pesticide synergism in the environment with high air humidity and low temperature. The matching of the esterified vegetable oil, the sulfonate and the organic silicon can adapt to various extreme environments, so that the use of the biological pesticide is not limited by the change of the external environment.
3. When the organic silicon is used as a synergist, the organic silicon has high requirements on the pH of a solution, the organic silicon can normally play a role when the pH is between 5 and 9, and the sulfonate is alkaline and is stable in alkaline, neutral and weakly acidic solutions.
4. The biological pesticide composite synergist has obvious synergism on biological pesticides, and the mortality rate of cabbage caterpillars and the number of dead plants of barnyard grass plants per unit area are far higher than those of a control group without the synergist in an extreme environment, so that the pesticide effect of the pesticide is obviously improved by the synergist; meanwhile, the contact angle of the liquid medicine of the experimental group is far smaller than that of the group without the synergist, and the maximum stable retention amount of the liquid medicine is far larger than that of the group without the synergist, so that the synergist can improve the wettability, the spreadability and the adhesiveness of the liquid medicine on the plant leaves; within a statistical period of 30 days, the mortality rate of the cabbage caterpillars in the experimental group is basically maintained to be more than 80%, and the mortality rate of the cabbage caterpillars in the three examples of the control group is finally reduced to 35%, 25% and 33% in sequence, which shows that the drug resistance of the cabbage caterpillars can be reduced by adding the synergist; meanwhile, according to experimental data, the interference of extreme environment on pesticide effect can be obviously reduced by adding the synergist.
Detailed Description
The technical solutions of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1:
a composite synergist for biological pesticides comprises the following raw materials in parts by mass: 2% of cottonseed oil, 1% of sodium dodecyl sulfate, 2% of organic silicon and the balance of water.
Mixing the above materials at the above ratio until the prepared preparation is not layered to form emulsion. The prepared composite synergist is added into the bacillus thuringiensis insecticide with the dilution multiple of 1000 times of 16000 IU/mg according to the proportion of 5 percent, and the mixture is uniformly stirred to obtain the bacillus thuringiensis insecticide containing the synergist. 100m in Yuzhou city Tianyuan biological technology limited company experimental base2The vegetable garden for planting Chinese cabbage is used as experimental site, the experimental conditions are drought and water shortage, the poisoning object is cabbage caterpillar on Chinese cabbage, and 50 m in the vegetable garden2Spraying Bacillus thuringiensis insecticide containing synergist as experimental group, and the rest 50 m2A control group was sprayed with bacillus thuringiensis insecticide without synergist. The contact angle and the maximum stable retention of the liquid medicine were counted on day 2 after spraying, and the results are shown in table 1; the mortality rate of cabbage caterpillars was continuously counted from day 2, and the counted time was 30 days, and the results are shown in table 2.
Table 1:
table 2:
the contact angle of the liquid medicine can be used for evaluating the wetting degree of the liquid medicine, and the smaller the contact angle is, the better the wetting degree of the liquid medicine on the plant leaves is. As can be seen from Table 1, the contact angle of the experimental group is 29 degrees, the control group is 65 degrees, and the synergistic agent is shown to increase the wettability of the pesticide, so that the spreadability of the pesticide on the surface of the blade is increased; the maximum stable retention of the experimental group was 8.5ug/cm2The control group was 2.2ug/cm2The synergist is shown to increase the maximum stable retention of pesticide on plant leaves, thereby improving the pesticide effect.
As can be seen from the data in Table 2, the mortality rate of the cabbage caterpillar in the experimental group sprayed with the Bacillus thuringiensis insecticide containing the synergist is maintained at a high level, basically more than 80%; in the control group without the synergist, the mortality rate of the cabbage caterpillars was continuously reduced, finally to 35%. Shows that the synergist is added into the bacillus thuringiensis insecticide, so that the insecticidal rate of the pesticide is improved, and the resistance of the cabbage caterpillar to the pesticide is reduced.
The results of this example show that: under the condition of drought and water shortage, the synergist of the invention can be added to improve the insecticidal rate of the bacillus thuringiensis insecticide, reduce the resistance of the cabbage caterpillar to pesticides, reduce the contact angle of the liquid medicine on the surface of plant leaves, and increase the maximum stable retention of the liquid medicine on the leaves, thereby increasing the wettability, the spreadability and the adhesiveness of the pesticides and improving the pesticide effect.
Example 2:
a composite synergist for biological pesticides comprises the following raw materials in parts by mass: 6% of cottonseed oil, 4% of sodium dodecyl sulfate, 6% of organic silicon and the balance of water.
The prepared synergist was added to 16000 IU/mg of Bacillus thuringiensis insecticide diluted 1000 times according to the method of example 1, under the conditions of rainy and damp conditions, and the rest is the same as example 1. The statistical results are shown in tables 3 and 4.
Table 3:
table 4:
the results in tables 3 and 4 show that under the condition of raininess and dampness, the addition of the synergist can improve the insecticidal rate of the bacillus thuringiensis insecticide, reduce the resistance of cabbage caterpillar to pesticides, reduce the contact angle of the pesticide liquid on the surface of plant leaves, and increase the maximum stable retention amount of the pesticide liquid on the leaves, so that the wettability, the spreadability and the adhesiveness of the pesticides are improved, and the pesticide effect of the pesticides is improved.
Example 3:
a composite synergist for biological pesticides comprises the following raw materials in parts by mass: 10% of soybean oil, 6% of sodium dodecyl sulfate, 10% of organic silicon and the balance of water.
The prepared synergist was added to 16000 IU/mg of Bacillus thuringiensis insecticide diluted 1000 times according to the method of example 1, under the same experimental conditions as in example 1, in sunny summer. The statistical results are shown in tables 5 and 6.
Table 5:
table 6:
the results in tables 5 and 6 show that under the condition of sunny summer, the addition of the synergist can improve the insecticidal rate of the bacillus thuringiensis insecticide, reduce the resistance of cabbage caterpillar to pesticides, reduce the contact angle of the pesticide liquid on the surface of plant leaves, and increase the maximum stable retention amount of the pesticide liquid on the leaves, so that the wettability, the spreadability and the adhesiveness of the pesticides are improved, and the pesticide effect of the pesticides is improved.
Example 4:
a composite synergist for biological pesticides comprises the following raw materials in parts by mass: 2% of cottonseed oil, 1% of sodium dodecyl sulfate, 2% of organic silicon and the balance of water.
Mixing the above materials at the above ratio until the prepared preparation is not layered to form emulsion. Adding the prepared composite synergist into mesotrione liquid with the dilution multiple of 500 times according to the proportion of 8%, and uniformly stirring to obtain the mesotrione liquid containing the synergist. 100m in Yuzhou city Tianyuan biological technology limited company experimental base2The orchard used for planting the seeds is taken as an experimental place, the experimental conditions are drought and water shortage, the poison killing object is barnyard grass in the orchard, and the distance between 50 m and the orchard is 50 m2Spraying mesotrione liquid medicine containing synergist as experimental group, and remaining 50 m2Spraying mesotrione liquid medicine without synergist as control group, wherein the growth vigor of barnyard grass in experimental group and that in control group are the same, and the planting density is close to 60 strains/m2. And (3) counting the contact angle and the maximum stable retention amount of the liquid medicine on the 2 nd day after spraying, and counting the number of dead barnyard grass plants in unit area in the orchard on the 30 th day after spraying, wherein the counting results are shown in the table 7.
Table 7:
the data in table 7 show that the death rate of barnyard grass plants in unit area of the experimental group sprayed with the mesotrione liquid medicine containing the synergist is 65.7% higher than that of the control group under the condition of drought and water shortage, and the fact that the synergist is added into the mesotrione liquid medicine can obviously improve the weed removal rate of the pesticide; the contact angle of the experimental group is far lower than that of the control group, and the contact angle shows that the synergist can increase the wettability of the pesticide, so that the spreadability of the pesticide on the surface of the blade is increased; the maximum stable retention of the experimental group is larger than that of the control group, which shows that the liquid medicine added with the synergist can stably exist on the surface of the leaf, so that the medicine effect is better.
Example 5:
a composite synergist for biological pesticides comprises the following raw materials in parts by mass: 6% of cottonseed oil, 4% of sodium dodecyl sulfate, 6% of organic silicon and the balance of water.
The prepared synergist was added to 500-fold dilution of mesotrione liquid at a ratio of 10% according to the method of example 4, and the experimental conditions were rainy and humid, otherwise the same as example 4. The statistical results are shown in Table 8.
Table 8:
the data in 8 in the table show that the death rate of barnyard grass plants in the unit area of the experimental group sprayed with the mesotrione liquid medicine containing the synergist is 79.3% higher than that of the control group under the condition of rainy and humid conditions, and the fact that the synergist is added into the mesotrione liquid medicine can obviously improve the weed removal rate of the pesticide; the contact angle of the experimental group is far lower than that of the control group, and the contact angle shows that the synergist can increase the wettability of the pesticide, so that the spreadability of the pesticide on the surface of the blade is increased; the maximum stable retention of the experimental group is larger than that of the control group, which shows that the liquid medicine added with the synergist can stably exist on the surface of the leaf, so that the medicine effect is better.
Example 6:
a composite synergist for biological pesticides comprises the following raw materials in parts by mass: 10% of sunflower oil, 6% of sodium dodecyl sulfate, 10% of organic silicon and the balance of water.
The prepared synergist was added to mesotrione liquid diluted 500 times in a proportion of 10% according to the method of example 4, the experimental conditions were sunny in summer, and the rest was the same as example 4. The statistical results are shown in Table 9.
Table 9:
the data in the table 9 show that the death number of barnyard grass plants in the unit area of the experimental group sprayed with the mesotrione liquid medicine containing the synergist is 31.1% higher than that of the control group under the condition of sunny days in summer, and the synergistic agent is added into the mesotrione liquid medicine, so that the weeding rate of the pesticide can be obviously improved; the contact angle of the experimental group is far lower than that of the control group, and the contact angle shows that the synergist can increase the wettability of the pesticide, so that the spreadability of the pesticide on the surface of the blade is increased; the maximum stable retention of the experimental group is larger than that of the control group, which shows that the liquid medicine added with the synergist can stably exist on the surface of the leaf, so that the medicine effect is better.
It should be noted that the above-mentioned embodiments are only for illustrating the principle and the implementation manner of the present invention, but the present invention is not limited to the above-mentioned embodiments, and any simple modification, equivalent change and modification made to the above-mentioned embodiments according to the technical essence of the present invention fall within the protection scope of the present invention.
Claims (7)
1. The biological pesticide composite synergist is characterized by comprising the following raw materials in parts by mass: 2-10% of esterified vegetable oil, 1-6% of sulfonate, 2-10% of organic silicon and the balance of water.
2. The biological pesticide composite synergist according to claim 1, characterized in that the raw materials and the mass fraction are as follows: 6% of esterified vegetable oil, 4% of sulfonate, 6% of organic silicon and the balance of water.
3. The biological pesticide composite synergist according to claim 1 or 2, wherein the esterified vegetable oil is one or more of cottonseed oil, soybean oil and sunflower oil.
4. The composite biological pesticide synergist according to claim 3, wherein the esterified vegetable oil is cotton seed oil.
5. The compound synergist for biopesticides according to claim 1 or 2, wherein the biopesticide is one of a bacillus thuringiensis insecticide and a mesotrione liquid.
6. The composite biological pesticide synergist according to any one of claims 1 or 2, wherein the sulfonate is one of sodium alkyl benzene sulfonate and sodium alkyl sulfonate.
7. The composite biological pesticide synergist according to claim 6, wherein the sulfonate is sodium dodecyl sulfate.
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| CN202011253011.2A CN112314599A (en) | 2020-11-11 | 2020-11-11 | Composite synergist for biological pesticide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467961A (en) * | 2021-12-22 | 2022-05-13 | 张家口市农业科学院(河北省高寒作物研究所) | Synergistic herbicide rich in organic silicon and vegetable oil auxiliary agent and preparation method thereof |
| DE202022104177U1 (en) | 2022-07-23 | 2022-08-03 | Sunita Arya | Novel composition of a biopesticide for pre-fumigation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467961A (en) * | 2021-12-22 | 2022-05-13 | 张家口市农业科学院(河北省高寒作物研究所) | Synergistic herbicide rich in organic silicon and vegetable oil auxiliary agent and preparation method thereof |
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