RU2812454C1 - Use of trifloxystrobin for prevention and treatment of infection by agricultural pests and mites - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: means of pest control. The following is proposed: the use of trifluenfuronate to prevent infestation and control at least one agricultural insect pest selected from Bemisia tabaci, Bradysia odoriphaga, Plutella xylostella and Mythimna separate, and at least one phytophagous mite selected from Tetranychus cinnabarinus, Tetranychus urticae, Panonychus citri and Tetranychus viennensis. The insecticidal and acaricidal agent contains trifluenfuronate and a solvent and may be presented as an agriculturally suitable emulsifiable concentrate, aqueous emulsion, aqueous solution, wettable powder, microemulsion, suspension, capsule suspension or water-dispersible granule. The content of trifloxystrobin is 1–80%.

EFFECT: trifloxystrobin is a new, highly effective agent in the fight against agricultural pests and mites, which does not develop stable resistance.

7 cl, 9 tbl, 7 ex

Description

The present invention claims priority based on an earlier patent application No. 202010622002.X entitled “USE OF TRIFLOXYSTROBIN FOR PREVENTION AND TREATMENT OF AGRICULTURAL PESTS AND MITES.” EST INSECTS AND MITES"), filed with the National Intellectual Property Administration of China on July 1, 2020, the contents of which are incorporated herein in their entirety by reference.

TECHNICAL FIELD

The present invention relates to the field of agricultural insecticidal and acaricidal agents and relates to a product containing trifluenfuronate as an active ingredient for the prevention and control of agricultural insect pests and mites, as well as a method for its preparation and its use.

BACKGROUND OF THE ART

When growing crops, the effectiveness of preventing infestation and controlling agricultural insect pests and mites is directly related to the yield and quality of crops. Currently, the use of chemical agents is one of the important methods of preventing and controlling the infestation of agricultural insects and mites, and in the future they will remain indispensable to other methods of preventing and controlling the infestation of agricultural insects and mites due to the advantages of their effectiveness and speed. However, as chemical agents are constantly used, the 3R problem associated with agricultural insect pests and mites has worsened and is recognized as an urgent problem. .

Finding a new safe and effective insecticidal and acaricidal agent that does not have cross-resistance to existing agents is the most direct and effective way to address the 3R problem encountered in the prevention and control of agricultural insect pests and mites.

BRIEF DESCRIPTION OF THE INVENTION

In order to overcome the disadvantages of the known analogues, the inventor of the present invention has discovered that trifluenfuronate has activity against various agricultural insect pests and mites, can effectively inhibit oviposition of female agricultural insect pests and mites, and has outstanding activity against insect eggs. and ticks and is not cross-resistant to existing agents; it is an excellent replacement product to address the 3R problem of agricultural insect pests and mites. As an environmentally friendly compound, trifluenfuronate (CAS: 2074661-82-6) has low toxicity and is safe to use. The present invention provides an insecticidal and acaricidal agent containing trifluenfuronate. After applying an effective amount of an insecticidal and acaricidal agent to an area infested, suspected of being infested, or an area likely to be infested by insect pests and mites, the agent reduces the damage caused by insect pests and mites to crops, primarily by inhibiting egg deposition by female insects. pests and mites, by inhibiting the hatching of eggs of pests and mites, etc.; In addition, the agent also has a certain destructive effect on adults and nymphs of insect pests and mites.

The purpose of the present invention is achieved through the following technical solutions: The use of trifluenfuronate to prevent infestation and control agricultural insect pests and mites.

According to the present invention, the agricultural insect pests and mites are at least one of the phytophagous mites, Bemisia tabaci Gennadius, Bradysia odoriphaga Yang et Zhang, Plutella xylostella (Linnaeus) and Mythimna separate (Walker) (such as fall armyworm).

According to the present invention, the phytophagous mites are at least one of Tetranychus cinnabarinus (Boisduval), Tetranychus urticae Koch, Panonychus citri (McGregor) and Tetranychus viennensis.

According to the present invention, trifluenfuronate has the structure shown below:

The present invention also provides a trifluenfuronate-containing insecticidal and acaricidal agent, wherein the trifluenfuronate-containing insecticidal and acaricidal agent comprises trifluenfuronate and a solvent. According to the present invention, trifluenfuronate is added in an amount (weight of trifluenfuronate in insecticidal and acaricidal agent) of 1-80 wt. %, for example 1-60 wt. %, for example, 1 wt. %, 2 wt. %, 5 wt. %, 8 wt. %, 10 wt. %, 12 wt. %, 15 wt. %, 20 wt. %, 25 wt. %, 30 wt. %, 35 wt. %, 40 wt. %, 45 wt. %, 50 wt. %, 55 wt. %, 60 wt. %, 70 wt. % or 80 wt. %.

According to the present invention, the insecticidal and acaricidal agent containing trifluenfuronate also contains an emulsifier.

In particular, the emulsifier is added in an amount (weight of the emulsifier in the insecticidal and acaricidal agent) of 3-30 wt. %, for example, 3 wt. %, 5 wt. %, 8 wt. %, 10 wt. %, 12 wt. %, 15 wt. %, 20 wt. %, 25 wt. %, 28 wt. % or 30 wt. %. According to the present invention, the insecticidal and acaricidal agent containing trifluenfuronate may also contain other adjuvants, where the other adjuvants may be at least one of thickeners, preservatives, defoamers, dispersants, stabilizers, wetting agents, penetrants and binders and the like. ; while other adjuvants may provide the insecticidal and acaricidal agent containing trifluenfuronate for use in various circumstances and process it into an emulsifiable concentrate, aqueous emulsion, aqueous solution, wettable powder, microemulsion, suspension, capsular suspension or water-dispersible granule, which can be used in agriculture.

For example, when the product of the present invention for the prevention and control of agricultural insect pests and mites (for example, an insecticidal and acaricidal agent containing trifluenfuronate) is applied to foliar sprays and soil treatments in the form of an emulsifiable concentrate, it contains the following components:

trifluenfuronate: 1-60 wt. %,

emulsifier: 5-20 wt. % And

mixed solvent to bring to 100 wt. %.

The emulsifier is selected from one or more of Pesticide Emulsifier No. 100, TX-10, Pesticide Emulsifier No. 500, Pesticide Emulsifier No. 602, OP500, OP10, Tween 80, and Pesticide Emulsifier No. 600, preferably at least one of Pesticide Emulsifier No. pesticides No. 100 in an amount of 5-8 wt. %, emulsifier for pesticides No. 600 in an amount of 5-8 wt. % and Tween 80 in an amount of 3-8 wt. %. The mixed solvent is a mixture of two or more of aromatic solvent naphtha, ethyl acetate and N-methylpyrrolidone, preferably a mixture of aromatic solvent naphtha:N-methylpyrrolidone=1:1 (v/v).

Preparation method: First add mixed solvent, then weigh and add a certain amount of trifluenfuronate and add emulsifier. The mixture is stirred for 0.5 h until completely homogenized, and then continuously stirred in the reaction vessel for another 0.5 h. The composition is determined, the mixture is packaged and sealed in separate double-layer plastic bottles for storage.

For example, when the product of the present invention for the prevention and control of agricultural insect pests and mites (for example, an insecticidal and acaricidal agent containing trifluenfuronate) is applied to foliar sprays and soil treatments in the form of an aqueous emulsion, it contains the following components:

trifluenfuronate: 1-50 wt. %,

emulsifier: 12-28 wt. %,

solvent: 10-28 wt. % And

water to bring to 100 wt. %.

The emulsifier is selected from one or more of 7780, 7781T, 4103, Well201, TX-10, pesticide emulsifier No. 500, pesticide emulsifier No. 602 and WellM30, etc.; preferably the emulsifier is 7780 in an amount of 5-15 wt. % or 7781T in an amount of 3-12 wt. %.

The solvent is an aromatic hydrocarbon solvent or cyclohexanone or the like.

Preparation method: first add a solvent, then weigh and add a certain amount of trifluenfuronate and add an emulsifier. The mixture is stirred for 0.5 h until completely homogenized, and then continuously stirred in the reaction vessel for another 0.5 h. The mixed liquid is slowly added to water and the mixture is homogenized. The composition is determined and the mixture is packaged and sealed in individual double-layer plastic bottles, glass bottles or aluminum bottles with an internal barrier coating for storage.

For example, when the product of the present invention for the prevention and control of agricultural insect pests and mites (for example, an insecticidal and acaricidal agent containing trifluenfuronate) is applied to foliar sprays and soil treatments in the form of an aqueous solution, it contains the following components:

trifluenfuronate: 1-80 wt. %,

emulsifier: 12-28 wt. % And

water to bring to 100 wt. %.

The emulsifier is betaine.

Method of preparation: first weigh and add a certain amount of trifluenfuronate, add an emulsifier, and then add water. The mixture is stirred for 0.5 h until completely homogenized, and then continuously stirred in the reaction vessel for another 0.5 h. The composition is determined, the mixture is packaged and sealed in separate double-layer plastic bottles, glass bottles or aluminum bottles with an internal barrier coating for storage For example, when the product of the present invention for the prevention and control of agricultural insect pests and mites (for example, an insecticidal and acaricidal agent containing trifluenfuronate) is applied to foliar sprays and soil treatments in the form of a suspension, it contains the following components:

trifluenfuronate: 1-80 wt. %,

emulsifier: 1-20 wt. %,

thickener: 0.01-1 wt. %,

preservative: 0.1-1 wt. %,

defoamer: 0.1-1 wt. %,

solvent: 1-10 wt. % And

water to bring to 100 wt. %.

The emulsifier is triethanolammonium salt of tristyrylphenol polyoxyethylene ester of phosphoric acid, lignin sulfonate or naphthalene sulfonate, the thickener is xanthan gum, magnesium aluminum silicate or gelatin, the preservative is sodium benzoate or benzoic acid, the defoamer is selected from organosilicon additives, the solvent is selected from water, solvent naphtha, methyl oleate , turpentine oil and propylene carbonate.

Preparation method: emulsifier, defoamer and water are mixed and homogenized, and then weighed and a certain amount of trifluenfuronate and a certain amount of solvent are added. The mixture is then homogenized and crushed. Once the mixture is determined to be acceptable, a preservative and thickener are added and the mixture is homogenized. The composition is determined and the mixture is packaged and sealed in individual double-layer plastic bottles, glass bottles or aluminum bottles with an internal barrier coating for storage. For example, when the product of the present invention for the prevention and control of agricultural insect pests and mites (for example, an insecticidal and acaricidal agent containing trifluenfuronate) is applied to foliar sprays and soil treatments in the form of a microemulsion, it contains the following components:

trifluenfuronate: 1-80 wt. %,

emulsifier: 12-28 wt. % And

solvent: 1-10 wt. % And

water to bring to 100 wt. %.

The emulsifier is a triethanolammonium salt of tristyrylphenol polyoxyethylene phosphate ester or a polyoxyethylene fatty acid ester; the solvent is selected from water, solvent naphtha, methyl oleate, turpentine oil, propylene carbonate, cyclohexanone and decanamide.

Preparation method: first add a solvent, then weigh and add a certain amount of trifluenfuronate and add an emulsifier. The mixture is stirred for 0.5 hour until completely homogenized, and then continuously stirred in the reaction vessel for another 0.5 hour. The mixture is then continuously stirred with water in the reaction vessel until it is homogenized. The present invention also provides a method for preventing and controlling the infestation of agricultural insect pests and mites, the method comprising the following step:

applying the above-described insecticidal and acaricidal agent containing trifluenfuronate, by foliar spray or soil treatment, to an area infested by insect pests and mites, an area suspected of being infested by insect pests and mites, or an area that may be infested by insect pests and mites.

According to the present invention, the above-described insecticidal and acaricidal agent containing trifluenfuronate is applied by foliar spray or soil treatment to an area infested with eggs of pests and mites, an area suspected of being infested with eggs of pests and mites, or an area that may be infested with eggs. insect pests and mites.

Advantages of the present invention

The present invention provides the use of trifluenfuronate for the prevention and control of agricultural insect pests and mites. Trifluenfuronate can be formulated as an agriculturally suitable emulsifiable concentrate, aqueous emulsion, aqueous solution, wettable powder, microemulsion, suspension, capsule suspension or water-dispersible granule, wherein the content of trifluenfuronate in the formulated form is 1-80%. The present invention shows that trifluenfuronate is extremely effective for the prevention and control of agricultural insect pests and mites; in addition, trifluenfuronate is a new compound with no cross-resistance to existing products.

DETAILED DESCRIPTION OF THE INVENTION

The present invention is illustrated below in more detail with reference to specific examples. It should be understood that the following embodiments are purely illustrative and explanatory of the present invention and should not be construed as limiting the scope of protection of the present invention. All methods implemented based on the content of the present invention described above are included in the scope of protection according to the present invention. Unless otherwise indicated, the experimental methods used in the following examples are conventional methods. Unless otherwise indicated, the reagents, materials, etc. used in the following examples are commercially available.

The rate of mite population reduction and control effect of the treatment agent used in the following examples were calculated using the following formulas:

Example 1: Toxicity test against phytophagous mites

Test to determine the inhibitory activity regarding oviposition: Stock solution of technical material with a mass concentration of 1 wt. % was prepared with acetone for subsequent use and diluted with deionized water containing 0.1 wt. % Tween 80, obtaining a series of test concentrations. Fresh leaves of cowpea seedlings were selected and cut into round leaf disks with a diameter of approximately 5.0 cm. The leaf disks were placed in a plastic Petri dish with filter paper and absorbent cotton placed on it. Treatment agents at concentrations of 5 mg/L and 10 mg/L were applied to the back of the leaves using cotton swabs. An aqueous solution with the same proportion of solvent was used as a control agent. After natural evaporation of the liquid agent in room conditions, approximately 20 adult female mites aged 3-5 days were placed on each leaf. Each treatment was repeated 5 times, treating a total of approximately 100 mites.

Ticks were kept under identical conditions, examined under a binocular dissecting microscope every 24 h for 6 consecutive days, and the number of eggs laid was recorded for each treatment. After completion of the test, the degree of oviposition inhibition was calculated for each treatment.

Test to determine the inhibitory activity against mite hatching: The test was carried out using the leaf dip method. Stock solution of technical material with a mass concentration of 1 wt. % was prepared with acetone for subsequent use and diluted with deionized water containing 0.1 wt. % Tween 80, obtaining a series of test concentrations. 1.2% water agar was poured into a 9 cm Petri dish and cooled for later use. Twenty adult mites were collected and placed on pepper leaves. After 2 days, adult ticks were removed and the number of tick eggs was counted. Leaves with eggs were immersed in the prepared liquid agent for 10 s and then removed. The leaves were placed in a Petri dish and moistened. Each treatment was repeated 3 times with 0.1 wt. % aqueous solution of Tween 80 was used as a blank control. These processed samples were placed in a biochemical incubator at 24±1°C. After the tick eggs of the unmarried control group hatched, the test results were checked and the hatchability was calculated.

The results are presented in Table 1. It can be seen that trifluenfuronate was effective in inhibiting oviposition by adult females of 4 types of mites and reducing the number of eggs laid.

The results are presented in Table 2. It can be seen that trifluenfuronate had significant activity against eggs of 4 types of phytophagous mites. The procedure was the same as described above, except that the toxicity assay for Tetranychus cinnabarinus eggs was carried out in different areas.

The results are presented in Table 3. It can be seen that trifluenfuronate had relatively consistent activity against Tetranychus cinnabarinus eggs in the indicated areas, unlike etoxazole, which varied in activity from one area to another. It can be assumed that trifluenfuronate is not cross-resistant to etoxazole. Comparing trifluenfuronate with commercially available acaricidal products using the same test method suggests that trifluenfuronate is not cross-resistant to existing acaricidal agents.

Example 2. Activity against eggs of other agricultural insect pests

Bemisia tabaci egg: spray method was used on potted plants. Stock solution of technical material with a mass concentration of 1 wt. % was prepared with acetone for subsequent use and a series of test concentrations were prepared using 0.1 wt. % aqueous solution of Tween 80. Potted peppers growing at the same rate were selected. Every 6 potted peppers were taken as a processing unit and placed in an insect rearing cage. Approximately 500 tobacco whiteflies were placed in each insect rearing cage and maintained for 2 days before adults were removed. After preparing the agent, it was used to spray pepper plants. After spraying, the plants were placed in insect breeding cages. 0.1 wt. A % aqueous solution of Tween 80 was used as a blank control and the blank control was placed in an insect rearing chamber at 25°C. After tick nymphs hatched in the blank control group, the number of nymphs in each treated unit was counted and the degree of hatching inhibition was calculated.

Bradysia odoriphaga egg: The test was carried out using a method for quantitatively adding a liquid agent dropwise. Stock solution of technical material with a mass concentration of 1 wt. % was prepared with acetone for subsequent use and a series of test concentrations were prepared using 0.1 wt. % aqueous solution of Tween 80. Bradysia odoriphaga eggs were collected at the age of 2 days. Each processed unit consisted of 20 eggs. The eggs were placed in a Petri dish with a diameter of 9 cm with filter paper placed in it. Using a pipette, 600 μl of the liquid agent was dropped onto the eggs and 600 μl of the liquid agent was applied to the filter paper. Each treatment was repeated 3 times. 0.1 wt. % aqueous solution of Tween 80 was used for the blank control and the blank control after treatment was placed in a biochemical incubator at 24±1°C. Five days after application, the test results were checked.

The results are presented in Table 4. It can be seen that trifluenfuronate had significant activity against the eggs of the 2 types of agricultural insect pests tested.

Example 3. Activity against eggs of other agricultural insect pests

Cabbage moth egg: Test was carried out using the leaf dipping method. Stock solution of technical material with a mass concentration of 1 wt. % was prepared with acetone and diluted with deionized water containing 0.1 wt. % Tween 80, with test concentrations for subsequent use. 1.2% agar was poured into a 9 cm Petri dish and cooled for later use. Two-leaf, single-core radish seedlings were placed in a Petri dish when adult cabbage moths were in the active oviposition phase. After 1 day, the radish seedlings were taken out. Radish seedlings with 20-30 eggs on them were selected and immersed in a liquid agent for 10 s, and then removed and the radish seedlings were placed in a Petri dish and moistened. Each treatment was repeated 3 times. 0.1 wt. A % aqueous solution of Tween 80 was used as a blank control and the blank control was placed in an insect rearing chamber at 25°C. After the larvae in the blank control group hatched, the test results were checked and the hatching rate was calculated. Fall Armyworm Egg: The test was carried out using the leaf dipping method. Stock solution of technical material with a mass concentration of 1 wt. % was prepared with acetone and diluted with deionized water containing 0.1 wt. % Tween 80, with test concentrations for subsequent use. 1.2% agar was poured into a 9 cm Petri dish and cooled for later use. Two-leaf, single-core corn seedlings were placed in a Petri dish when adult fall armyworms were actively laying eggs. After 1 day, the corn seedlings were taken out. Corn seedlings with 20-30 eggs on them were selected and immersed in a liquid agent for 10 s, and then taken out and the corn seedlings were placed in a Petri dish and moistened. Each treatment was repeated 3 times. 0.1 wt. A % aqueous solution of Tween 80 was used as a blank control and the blank control was placed in an insect rearing chamber at 25°C. After the larvae in the blank control group hatched, the test results were checked and the hatching rate was calculated.

The results are presented in Table 5. It can be seen that trifluenfuronate had significant activity against the eggs of the 2 types of agricultural insect pests tested.

Example 4: Field Efficacy Test

Test crop: cotton

Control object: Tetranychus cinnabarinus

Test Procedure: The field efficacy test was carried out in accordance with the “Field Efficacy Test Manual”. The dose of control agent tested was the recommended dose. The pure water treatment was used as a blank control. Treatment with each dose was repeated 4 times. A randomized block arrangement was used. The branches and both sides of the leaves of the plants were sprayed evenly with the agent, thus completely exposing the mites to the liquid agent. Before application, the original insect population was examined. After application, a fixed point examination method was used. In each plot, 2 plants were examined, each plant was marked with five points: eastern, southern, western, northern and middle, for each point 1 branch tip was examined, 5 leaves were examined for each branch tip, and a total of 50 leaves were examined in each plot. The number of living adult ticks and nymphs was recorded. The results were examined 14 days after application. The number of active mites on the leaves was studied and recorded. The degree of mite population reduction and the control effect of the treatment agent were calculated.

The results are presented in Table 6. Trifluenfuronate was effective in preventing and controlling Tetranychus cinnabarinus on cotton plants.

Example 5: Field Efficacy Test

Test crop: cucumber

Control object: Tetranychus urticae

Test procedure: The field efficacy test was carried out in accordance with the “Field Efficiency Test Manual”. The dose of control agent tested was the recommended dose. The pure water treatment was used as a blank control. Treatment with each dose was repeated 4 times. A randomized block arrangement was used. The branches and both sides of the leaves of the plants were sprayed evenly with the agent, thus completely exposing the mites to the liquid agent. Before application, the original insect population was examined. After application, a fixed point examination method was used. In each plot, 2 plants were studied; each plant was marked with five points: eastern, southern, western, northern and median, for each point 1 branch tip was examined, 5 leaves were examined at each branch tip, and a total of 50 leaves were examined at each site. The number of living adult ticks and nymphs was recorded. The results were examined 14 days after application. The number of active mites on the leaves was studied and recorded. The degree of mite population reduction and the control effect of the treatment agent were calculated.

The results are presented in Table 7. Trifluenfuronate was effective in preventing and controlling Tetranychus urticae in cucumber plants.

Example 6: Field Efficacy Test

Test culture: citrus plants

Control object: Panonychus citri

Test procedure: The field efficacy test was carried out in accordance with the “Field Efficiency Test Manual”. The dose of control agent tested was the recommended dose. The pure water treatment was used as a blank control. Treatment with each dose was repeated 4 times. A randomized block arrangement was used. The branches and both sides of the leaves of the plants were sprayed evenly with the agent, thus completely exposing the mites to the liquid agent. Before application, the original insect population was examined. After application, a fixed point examination method was used. In each plot, 2 plants were studied, each plant was marked with five points: eastern, southern, western, northern and middle, for each point 1 branch tip was examined, 5 leaves were examined for each branch tip, and a total of 50 leaves were examined in each plot. The number of living adult ticks and nymphs was recorded. The results were examined 14 days after application. The number of active mites on the leaves was studied and recorded. The degree of mite population reduction and the control effect of the treatment agent were calculated.

The results are presented in Table 8. Trifluenfuronate was effective in preventing infestation and controlling Panonychus citri on citrus plants.

Example 7: Field Efficacy Test

Test crop: hawthorn

Control object: Tetranychus viennensis

Test procedure: The field efficacy test was carried out in accordance with the “Field Efficiency Test Manual”. The dose of control agent tested was the recommended dose. The pure water treatment was used as a blank control. Treatment with each dose was repeated 4 times. A randomized block arrangement was used. The branches and both sides of the leaves of the plants were sprayed evenly with the agent, thus completely exposing the mites to the liquid agent. Before application, the original insect population was examined. After application, a fixed point examination method was used. In each plot, 2 plants were studied; each plant was marked with five points: eastern, southern, western, northern and median, for each point 1 branch tip was examined, 5 leaves were examined at each branch tip, and a total of 50 leaves were examined at each site. The number of living adult ticks and nymphs was recorded. The results were examined 14 days after application. The number of active mites on the leaves was studied and recorded. The degree of mite population reduction and the control effect of the treatment agent were calculated.

The results are presented in Table 9. Trifluenfuronate was effective in preventing and controlling Tetranychus viennensis.

When observed from application to completion of the study, the Example formulations were not found to cause visible symptoms of phytotoxicity in crops. Crops grew well after application, indicating the ability of trifluenfuronate to kill insect eggs when applied at tested concentrations, thereby permanently reducing insect populations and reducing damage to crops.

It should be understood that the examples described above represent some examples of the present invention, presented solely for better understanding of the examples of the present invention, and are not all examples of the present invention. In practical applications, many different examples can be obtained by adjusting the content of each component described above in the present invention and the method of combining the components. All of these examples are included within the scope of the present invention.

Embodiments of the present invention have been described above. However, the present invention is not limited to the embodiments described above. Any modification, equivalent, improvement, etc., made without departing from the spirit and principle of the present invention shall be within the scope of legal protection of the present invention.

Claims (8)

1. The use of trifluenfuronate for the prevention of infestation and control of at least one agricultural insect pest selected from Bemisia tabaci , Bradysia odoriphaga , Plutella xylostella and Mythimna separate, and at least one phytophagous mite selected from Tetranychus cinnabarinus , Tetranychus urticae , Panonychus citri and Tetranychus viennensis . 2. An insecticidal and acaricidal agent, characterized in that it contains trifluenfuronate and a solvent. 3. The insecticidal and acaricidal agent according to claim 2, characterized in that the content of trifluenfuronate is 1-80 wt.%, preferably 1-60 wt.%. 4. Insecticidal and acaricidal agent according to claim 2 or 3, characterized in that it additionally contains an emulsifier, and the emulsifier content is 3-30 wt.%. 5. Insecticidal and acaricidal agent according to any one of paragraphs. 2-4, further comprising other adjuvants, wherein said other adjuvants are at least one of thickeners, preservatives, defoamers, dispersants, stabilizers, wetting agents, penetrants and binders. 6. Insecticidal and acaricidal agent according to any one of paragraphs. 2-5, which is an emulsifiable concentrate, aqueous emulsion, aqueous solution, wettable powder, microemulsion, suspension, capsule suspension or water-dispersible granule. 7. A method for preventing infection and controlling agricultural insect pests and phytophagous mites, including the following stage: applying an insecticidal and acaricidal agent according to any one of paragraphs. 2-6 by spraying leaves or treating the soil on an area infested, presumably infested, or an area that may be infested with insect pests and phytophagous mites and/or eggs of pest insects and phytophagous mites, where at least one agricultural insect -pest selected from Bemisia tabaci , Bradysia odoriphaga , Plutella xylostella and Mythimna separate, and at least one phytophagous mite selected from Tetranychus cinnabarinus , Tetranychus urticae , Panonychus citri and Tetranychus viennensis .