阅读说明：本技术 含氟烯线砜和有机磷的杀线虫组合物 (Nematicidal compositions containing fluoroalkene sulfones and organophosphorus ) 是由 刘言合 陈琦 于 2021-09-17 设计创作，主要内容包括：本发明公开了含氟烯线砜和有机磷的杀线虫组合物,涉及农药领域,通过将N-氨乙基-3-氨丙基甲基二甲氧基硅烷和六甲基二硅氧烷加入干燥的三口烧瓶中,加入催化剂,得到中间体D,将中间体D加入干燥的三口烧瓶中,得到中间体E,滴加乙二醇二缩水甘油醚溶液,得到表面活性助剂,解决了现有的农药在施药时润湿性差,表面张力大,不易在靶标生物叶面及根系上润湿铺展,使药效降低的问题；两个含硅的亲水基团伸向水中,两个含有苯环的疏水基团伸向空气或有机溶剂中,在农药粒子表面间产生障碍,阻止它们相互靠近而产生凝聚,润湿铺展在靶标生物叶面及根系上,从而达到了降低表面张力提高药效的目的。(The invention discloses a nematicidal composition containing fluoro-ene sulfone and organophosphorus, which relates to the field of pesticides, and is characterized in that N-aminoethyl-3-aminopropyl methyl dimethoxy silane and hexamethyldisiloxane are added into a dry three-mouth flask, a catalyst is added to obtain an intermediate D, the intermediate D is added into the dry three-mouth flask to obtain an intermediate E, and ethylene glycol diglycidyl ether solution is dropwise added to obtain a surface active auxiliary agent, so that the problems that the existing pesticides are poor in wettability and large in surface tension when applied, and cannot be easily wetted and spread on the leaf surfaces and root systems of target organisms, and the pesticide effect is reduced are solved; two silicon-containing hydrophilic groups extend into water, and two hydrophobic groups containing benzene rings extend into air or an organic solvent, so that obstacles are generated between the surfaces of pesticide particles, the pesticide particles are prevented from approaching each other to generate agglomeration and are wetted and spread on the leaf surfaces and root systems of target organisms, and the aims of reducing surface tension and improving pesticide effect are fulfilled.)

1. The nematicidal composition containing the fluoro-ene sulfone and the organic phosphorus is characterized by comprising the following components in parts by weight:

0.5-60 parts of fluoro-olefine sulfone, 0.5-60 parts of organic phosphorus, 1-10 parts of surface active auxiliary agent, 1-5 parts of permeation auxiliary agent and 1-50 parts of filler or solvent;

the penetration aid is prepared by the following steps:

s1: adding alkylphenol polyoxyethylene and NaOH into a four-neck flask to obtain an intermediate A;

s2: adding allyl chloroacetate into the intermediate A to obtain an intermediate B;

s3: intermediate B and NaHSO₃Adding a solventAdding cosolvent isopropanol and catalyst into water, and uniformly mixing to obtain the penetration aid;

the surface active auxiliary agent is prepared by the following steps:

s4: adding N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane into a dry three-neck flask, and adding a catalyst to obtain an intermediate D;

s5: adding the intermediate D into a dry three-neck flask, adding anhydrous sodium sulfate as a drying agent, adding anhydrous ethanol as a solvent, and carrying out reflux reaction for 1-3h under the protection of nitrogen to obtain an intermediate E;

s6: and (3) carrying out reduced pressure distillation on ethylene glycol diglycidyl ether, adding isopropanol serving as a solvent to obtain an ethylene glycol diglycidyl ether solution, transferring the ethylene glycol diglycidyl ether solution to a dropping liquid pipe, adding the intermediate E into a dry three-neck flask, and adding isopropanol serving as a solvent to obtain the surfactant auxiliary.

2. The nematicidal composition containing fluoro alkene sulfone and organic phosphorus according to claim 1, wherein the organic phosphorus is one or a mixture of two of fosthiazate, diazinon and fenamiphos in any proportion, the filler is one or a mixture of two of white clay, pyrophyllite, diatomite, kaolin, white carbon black, bentonite, montmorillonite, calcium carbonate, zeolite and acid clay in any proportion, and the solvent is water or vegetable oil.

3. The nematicidal composition comprising fluoroalkylsulfone and organophosphorus according to claim 1, wherein the composition is formulated in a pesticide form selected from the group consisting of emulsifiable concentrate, microcapsule suspension, granule, and bait.

4. The fluoroolefinsulfone and organophosphorus-containing nematicidal composition according to claim 1, wherein the molar ratio of alkylphenol ethoxylate to NaOH in step S1 is 1: 1.1, the molar ratio of allyl chloroacetate to intermediate a in step S2 is 1: 1.

5. the fluoroolefm sulfone-and-organophosphorus-containing nematicidal composition according to claim 1, wherein the catalyst in step S3 is KNO₃The amount of the catalyst is 1/6 of the mass of the intermediate B, and the intermediate B is mixed with NaHSO₃In a molar ratio of 1: 2.

6. The nematicidal composition comprising fluoroolefinsulfone and organophosphorus according to claim 1, wherein the catalyst in step S4 is potassium hydroxide, the amount of the catalyst is 1% by mass of the total mass of N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane, and the molar ratio of N-aminoethyl-3-aminopropylmethyldimethoxysilane to hexamethyldisiloxane is 1: 5.

7. The nematicidal composition comprising fluoroalkylsulfone and organophosphorus according to claim 1, wherein the molar ratio of intermediate D to 4-ethoxybenzaldehyde in step S5 is 1:1, and the molar ratio of ethylene glycol diglycidyl ether to intermediate E in step S6 is 5: 1.

Technical Field

The invention relates to the field of pesticides, in particular to a nematicidal composition containing fluorine alkene sulfone and organic phosphorus.

Background

Plant nematodes can infect underground parts such as roots, rhizomes, tuberous roots and bulbs of plants, and cause remarkable external lesions at the parts, thereby not only reducing the yield of crops, but also reducing the quality of agricultural products, causing serious economic loss and severely restricting the development of agricultural economy;

the fulvene linear sulfone is a metabolic inhibitor for a plant parasitic nematode to obtain an energy storage process, an energy channel is blocked by the nematode through contact with the nematode to kill the nematode, the fenamiphos is an organophosphorus nematicide with contact killing effect but no systemic absorption and fumigation effect, belongs to a bright alkali esterase inhibitor, the fosthiazate is an organophosphorus nematicide, the main action mode is to inhibit the synthesis of acetylcholinesterase of root-knot nematode, can be used for preventing and controlling various root-knot nematodes, aphids and the like, and is widely applied to crops such as vegetables, bananas, fruit trees, medicinal materials and the like;

however, the existing pesticide has poor wettability and large surface tension when applied, is not easy to wet and spread on the leaf surface and root system of a target organism, reduces the pesticide effect, and has poor permeability on the animal body wall.

Disclosure of Invention

In order to overcome the technical problems described above, the object of the present invention is to provide a nematicidal composition comprising fluoroalkene sulfone and organophosphorus:

(1) adding alkylphenol polyoxyethylene and NaOH into a four-neck flask to obtain an intermediate A, cooling the intermediate A, adding allyl chloroacetate to obtain an intermediate B, and adding the intermediate B and NaHSO₃Adding the auxiliary agent into solvent water, adding cosolvent isopropanol and catalyst, and mixing uniformly to obtain the penetration auxiliary agent, thereby solving the problem of poor permeability on animal cell membranes;

(2) adding N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane into a dry three-neck flask, adding a catalyst to obtain an intermediate D, adding the intermediate D into the dry three-neck flask to obtain an intermediate E, carrying out reduced pressure distillation on ethylene glycol diglycidyl ether, transferring the ethylene glycol diglycidyl ether into a dropping tube, adding the intermediate E into the dry three-neck flask, and dropping an ethylene glycol diglycidyl ether solution to obtain a surface active auxiliary agent.

The purpose of the invention can be realized by the following technical scheme:

the nematicidal composition containing the fluoro-ene sulfone and the organophosphorus comprises the following components in parts by weight:

0.5-60 parts of fluoro-olefine sulfone, 0.5-60 parts of organic phosphorus, 1-10 parts of surface active auxiliary agent, 1-5 parts of permeation auxiliary agent and 1-50 parts of filler or solvent;

the penetration aid is prepared by the following steps:

s1: adding alkylphenol polyoxyethylene and NaOH, N into a four-neck flask₂Replacing air in the reaction flask for 10-20min, starting stirring, controlling the temperature at 90-100 deg.C and the vacuum degree at 20-25mmHg, and reacting for 5-6h to obtain intermediate A;

the chemical reaction formula is as follows:

s2: cooling the intermediate A to 20-30 ℃, adding allyl chloroacetate, controlling the reaction temperature to 60-70 ℃, reacting for 2-3h, washing with hot water, standing, and collecting the upper layer to obtain an intermediate B;

the chemical reaction formula is as follows:

s3: intermediate B and NaHSO₃Adding solvent water, adding cosolvent isopropanol and catalyst, mixing, emulsifying for 10-30min under the action of a homogenizer, placing in a four-mouth bottle, heating to 90-100 deg.C under stirring, and reacting for 4-5 hr to obtain the penetration assistant;

the chemical reaction formula is as follows:

the surface active auxiliary agent is prepared by the following steps:

s4: adding N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane into a dry three-neck flask, adding a catalyst, vacuumizing and introducing nitrogen, stirring and heating to 90-100 ℃, reacting for 4-5h, cooling, and carrying out reduced pressure distillation to obtain an intermediate D;

the chemical reaction formula is as follows:

s5: adding the intermediate D into a dry three-neck flask, adding anhydrous sodium sulfate as a drying agent, adding anhydrous ethanol as a solvent, stirring and heating to 40-50 ℃ under the protection of nitrogen, starting to dropwise add 4-ethoxybenzaldehyde, controlling the dropwise adding speed to be 1-2 drops/s, continuing to heat to 80-90 ℃ after the dropwise adding is finished, and carrying out reflux reaction for 1-3 hours to obtain an intermediate E;

the chemical reaction formula is as follows:

s6: carrying out reduced pressure distillation on ethylene glycol diglycidyl ether, adding isopropanol serving as a solvent to obtain an ethylene glycol diglycidyl ether solution, transferring the ethylene glycol diglycidyl ether solution to a dropping tube, adding the intermediate E into a dry three-neck flask, adding isopropanol serving as a solvent, stirring and heating to 40-50 ℃ under the protection of nitrogen, starting to drop the ethylene glycol diglycidyl ether solution, controlling the dropping speed to be 1-2 drops/s, reacting for 1-2h, and keeping the temperature of 90-95 ℃ to continue to react for 4-5h to obtain the surfactant.

The chemical reaction formula is as follows:

as a further scheme of the invention: the organic phosphorus is one or a mixture of two of fosthiazate, diazinon and ethoprophos in any proportion, the filler is one or a mixture of more than two of white clay, pyrophyllite, diatomite, kaolin, white carbon black, bentonite, montmorillonite, calcium carbonate, zeolite and acidic clay in any proportion, and the solvent is water or vegetable oil.

As a further scheme of the invention: the pesticide formulation prepared from the composition is one of missible oil, microcapsule suspending agent, granules and bait.

As a further scheme of the invention: in the step S1, the molar ratio of the alkylphenol polyoxyethylene to NaOH is 1: 1.1, the molar ratio of allyl chloroacetate to intermediate a in step S2 is 1: 1.

as a further scheme of the invention: in step S3, the catalyst is KNO₃The amount of the catalyst is 1/6 of the mass of the intermediate B, and the intermediate B is mixed with NaHSO₃In a molar ratio of 1: 2.

As a further scheme of the invention: in the step S4, the catalyst is potassium hydroxide, the dosage of the catalyst is 1% of the total mass of the N-aminoethyl-3-aminopropylmethyldimethoxysilane and the hexamethyldisiloxane, and the molar ratio of the N-aminoethyl-3-aminopropylmethyldimethoxysilane to the hexamethyldisiloxane is 1: 5.

As a further scheme of the invention: the molar ratio of the intermediate D to the 4-ethoxybenzaldehyde in the step S5 is 1:1, and the molar ratio of the ethylene glycol diglycidyl ether to the intermediate E in the step S6 is 5: 1.

The invention has the beneficial effects that:

(1) adding alkylphenol polyoxyethylene and NaOH into a four-neck flask to obtain an intermediate A, cooling the intermediate A, adding allyl chloroacetate to obtain an intermediate B, and adding the intermediate B and NaHSO₃Adding into solvent water, adding into cosolvent isopropanolThe penetration assistant is obtained by uniformly mixing alkylphenol ethoxylates as a raw material with allyl chloroacetate under an alkaline condition and then reacting with a sulfonating agent sodium bisulfite under the catalysis of potassium nitrate, the process has the characteristics of high yield, short flow, mild conditions and no special requirements on a reactor, and is suitable for industrial production, the long polyoxyethylene chain of the water solution of the penetration assistant increases the lipophilicity of molecules, the hydrophilicity of sulfonic acid groups is strong, the penetration assistant is favorable for dissolving in water, the hydrophobicity of the whole molecule is enhanced, the formation of micelles is promoted, the molecular conformation of the penetration assistant is changed, the molecular polarity head in an adsorption layer is enlarged, the area of adsorbed molecules is increased, the penetration assistant has the advantages of anionic surfactant and nonionic surfactant, and has the temperature resistance, salt tolerance and good compatibility, the water solubility is strong, and the agent is easier to diffuse with water, so that the probability that the nematode contacts the agent is higher, the nematode is adsorbed on the body surface of the nematode and is easier to penetrate through the body wall of the nematode, and the purpose of improving the osmosis effect on the body wall of the nematode is achieved;

(2) adding N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane into a dry three-neck flask, adding a catalyst to obtain an intermediate D, adding the intermediate D into the dry three-neck flask to obtain an intermediate E, distilling ethylene glycol diglycidyl ether under reduced pressure, transferring the ethylene glycol diglycidyl ether into a dropping tube, adding the intermediate E into the dry three-neck flask, dropping ethylene glycol diglycidyl ether solution to obtain the surface active auxiliary agent, wherein the surface active auxiliary agent has two silicon-containing hydrophilic groups and two hydrophobic groups containing benzene rings, and is connected by a connecting group through a chemical bond, the structure of the surface active auxiliary agent inhibits the head group separating force in the ordered aggregation process, so that the excellent performances of low critical micelle concentration, high surface activity and strong tackifying capability can be obtained, and the two silicon-containing hydrophilic groups extend into water, two hydrophobic groups containing benzene rings extend into air or an organic solvent to form a compact adsorption layer consisting of a layer of active auxiliary molecules, the hydrophobic groups can be adsorbed on the surfaces of particles, and the hydrophilic groups are dissolved in a dispersion medium serving as a continuous phase, so that the space blocking effect is achieved, barriers are generated between the surfaces of pesticide particles, the pesticide particles are prevented from approaching each other to generate agglomeration, and the pesticide particles are wetted and spread on the leaf surfaces and root systems of target organisms, so that the aim of reducing surface tension and improving pesticide effect is achieved.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the embodiment is a nematicidal composition containing fluoro-ene sulfone and organic phosphorus, which comprises the following components in parts by weight:

10 parts of fluorine alkene sulfone, 20 parts of organic phosphorus, 5 parts of surface active auxiliary agent, 2 parts of permeation auxiliary agent and 20 parts of filler or solvent;

the penetration aid is prepared by the following steps:

s1: adding alkylphenol polyoxyethylene and NaOH, N into a four-neck flask₂Replacing air in the reaction flask for 10min, starting stirring, controlling the temperature at 90 ℃ and the vacuum degree at 20mmHg, and reacting for 5h to obtain an intermediate A;

s2: cooling the intermediate A to 20 ℃, adding allyl chloroacetate, controlling the reaction temperature to 60 ℃, reacting for 2h, washing with hot water, standing, and collecting the upper layer to obtain an intermediate B;

s3: intermediate B and NaHSO₃Adding solvent water, adding cosolvent isopropanol and catalyst, mixing well, emulsifying for 10min under the action of a homogenizer, placing in a four-mouth bottle, heating to 90 ℃ while stirring, and reacting for 4h to obtain the penetration aid;

the surface active auxiliary agent is prepared by the following steps:

s4: adding N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane into a dry three-neck flask, adding a catalyst, vacuumizing, introducing nitrogen, stirring, heating to 90 ℃, reacting for 4 hours, cooling, and distilling under reduced pressure to obtain an intermediate D;

s5: adding the intermediate D into a dry three-neck flask, adding anhydrous sodium sulfate as a drying agent, adding anhydrous ethanol as a solvent, stirring and heating to 40 ℃ under the protection of nitrogen, starting to dropwise add 4-ethoxybenzaldehyde, controlling the dropwise adding speed to be 1 drop/s, continuing to heat to 80 ℃ after the dropwise adding is finished, and carrying out reflux reaction for 1h to obtain an intermediate E;

s6: carrying out reduced pressure distillation on ethylene glycol diglycidyl ether, adding isopropanol serving as a solvent to obtain an ethylene glycol diglycidyl ether solution, transferring the ethylene glycol diglycidyl ether solution to a dropping liquid pipe, adding the intermediate E into a dry three-neck flask, adding isopropanol serving as a solvent, stirring and heating to 40 ℃ under the protection of nitrogen, beginning to drop the ethylene glycol diglycidyl ether solution, controlling the dropping speed to be 1 drop/s, reacting for 1h, and keeping the temperature at 90 ℃ to continue to react for 4h to obtain the surfactant additive.

The components are prepared into water dispersible granules with the mass percentage of 50 percent according to a conventional preparation method to prepare pesticide spraying liquid.

Example 2:

the embodiment is a nematicidal composition containing fluoro-ene sulfone and organic phosphorus, which comprises the following components in parts by weight:

20 parts of fluorine alkene sulfone, 10 parts of organic phosphorus, 5 parts of surface active auxiliary agent, 3 parts of permeation auxiliary agent and 20 parts of filler or solvent;

the penetration aid is prepared by the following steps:

s1: adding alkylphenol polyoxyethylene and NaOH, N into a four-neck flask₂Replacing air in the reaction flask for 10min, starting stirring, controlling the temperature at 90 ℃ and the vacuum degree at 20mmHg, and reacting for 5h to obtain an intermediate A;

s2: cooling the intermediate A to 20 ℃, adding allyl chloroacetate, controlling the reaction temperature to 60 ℃, reacting for 2h, washing with hot water, standing, and collecting the upper layer to obtain an intermediate B;

s3: intermediate B and NaHSO₃Adding into solvent water, adding cosolvent isopropanol and catalyst, mixing, emulsifying for 10min under the action of homogenizer, and placing into four-mouth bottleHeating to 90 ℃ while stirring, and reacting for 4 hours to obtain the penetration aid;

the surface active auxiliary agent is prepared by the following steps:

s4: adding N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane into a dry three-neck flask, adding a catalyst, vacuumizing, introducing nitrogen, stirring, heating to 90 ℃, reacting for 4 hours, cooling, and distilling under reduced pressure to obtain an intermediate D;

s5: adding the intermediate D into a dry three-neck flask, adding anhydrous sodium sulfate as a drying agent, adding anhydrous ethanol as a solvent, stirring and heating to 50 ℃ under the protection of nitrogen, starting to dropwise add 4-ethoxybenzaldehyde, controlling the dropwise adding speed to be 2 drops/s, continuing to heat to 90 ℃ after the dropwise adding is finished, and performing reflux reaction for 3 hours to obtain an intermediate E;

s6: carrying out reduced pressure distillation on ethylene glycol diglycidyl ether, adding isopropanol serving as a solvent to obtain an ethylene glycol diglycidyl ether solution, transferring the ethylene glycol diglycidyl ether solution to a dropping liquid pipe, adding the intermediate E into a dry three-neck flask, adding isopropanol serving as a solvent, stirring and heating to 50 ℃ under the protection of nitrogen, dropwise adding the ethylene glycol diglycidyl ether solution, controlling the dropwise adding speed to be 2 drops/s, reacting for 2 hours, and keeping 95 ℃ for continuous reaction for 5 hours to obtain the surfactant additive.

The components are prepared into water dispersible granules with the mass percentage of 50 percent according to a conventional preparation method to prepare pesticide spraying liquid.

Example 3:

the embodiment is a nematicidal composition containing fluoro-ene sulfone and organic phosphorus, which comprises the following components in parts by weight:

20 parts of fluorine alkene sulfone, 20 parts of organic phosphorus, 5 parts of surface active auxiliary agent, 3 parts of permeation auxiliary agent and 30 parts of filler or solvent;

the penetration aid is prepared by the following steps:

s1: adding alkylphenol polyoxyethylene and NaOH, N into a four-neck flask₂Replacing air in the reaction flask for 20min, stirring, controlling temperature at 100 deg.C and vacuum degree at 25mmHg, and reacting for 6 hr to obtain intermediateA；

S2: cooling the intermediate A to 30 ℃, adding allyl chloroacetate, controlling the reaction temperature to 70 ℃, reacting for 3h, washing with hot water, standing, and collecting the upper layer to obtain an intermediate B;

s3: intermediate B and NaHSO₃Adding solvent water, adding cosolvent isopropanol and catalyst, mixing well, emulsifying for 30min under the action of a homogenizer, placing in a four-mouth bottle, heating to 100 ℃ while stirring, and reacting for 5h to obtain the penetration aid;

the surface active auxiliary agent is prepared by the following steps:

s4: adding N-aminoethyl-3-aminopropylmethyldimethoxysilane and hexamethyldisiloxane into a dry three-neck flask, adding a catalyst, vacuumizing, introducing nitrogen, stirring, heating to 100 ℃, reacting for 5 hours, cooling, and distilling under reduced pressure to obtain an intermediate D;

s5: adding the intermediate D into a dry three-neck flask, adding anhydrous sodium sulfate as a drying agent, adding anhydrous ethanol as a solvent, stirring and heating to 50 ℃ under the protection of nitrogen, starting to dropwise add 4-ethoxybenzaldehyde, controlling the dropwise adding speed to be 2 drops/s, continuing to heat to 90 ℃ after the dropwise adding is finished, and performing reflux reaction for 3 hours to obtain an intermediate E;

s6: carrying out reduced pressure distillation on ethylene glycol diglycidyl ether, adding isopropanol serving as a solvent to obtain an ethylene glycol diglycidyl ether solution, transferring the ethylene glycol diglycidyl ether solution to a dropping liquid pipe, adding the intermediate E into a dry three-neck flask, adding isopropanol serving as a solvent, stirring and heating to 50 ℃ under the protection of nitrogen, dropwise adding the ethylene glycol diglycidyl ether solution, controlling the dropwise adding speed to be 2 drops/s, reacting for 2 hours, and keeping 95 ℃ for continuous reaction for 5 hours to obtain the surfactant additive.

The components are prepared into water dispersible granules with the mass percentage of 50 percent according to a conventional preparation method to prepare pesticide spraying liquid.

Comparative example 1:

comparative example 1 differs from example 1 in that no permeation aid is added.

Comparative example 2:

comparative example 2 differs from example 1 in that no surface active agent was added.

Comparative example 3:

comparative example 3 differs from example 1 in that no organic phosphorus is added.

Comparative example 4:

this comparative example used a nematicidal composition disclosed in chinese patent CN 201510064851.7.

Selecting 2-instar larvae of cucumber root-knot nematodes for testing, putting a certain volume of a two-instar larva suspension into a culture dish, adding pesticide test reagents of an isometric series of examples 1-3 and comparative examples 1-4, taking clear water as a blank control, culturing at 25 ℃, checking the activity condition of the nematodes, checking the activity condition of dead nematodes, wherein the dead nematodes are stiff and bent into bow or spiral shapes, the live nematodes are mostly bent or twisted, and judging by adopting a co-toxicity coefficient method in a combined action mode;

the results are shown in the following table:

as can be seen from the data in the above table, the control effect of 30d after the experimental example was 69.9 to 78.5%, the control effect of comparative example 1 without the penetration aid was 60.2%, the control effect of comparative example 2 without the surface active aid was 51.3%, the control effect of comparative example 3 without the organic phosphorus was 59.9%, the control effect of comparative example 4 using a nematicidal composition disclosed in Chinese patent CN201510064851.7 was 69.9%, the control effect of 60d after the experimental example was 81.2 to 83.4%, the control effect of comparative example 1 without the penetration aid was 71.5%, the control effect of comparative example 2 without the surface active aid was 61.8%, the control effect of comparative example 3 without the organic phosphorus was 68.5%, the control effect of comparative example 4 using a nematicidal composition disclosed in Chinese patent CN201510064851.7 was 72.4%, the control effect of 90d after the experimental example was 89.6 to 92.1%, and the control effect of 80.6% without the penetration aid, the control effect of the comparative example 2 without the addition of the surface active assistant is 73.5 percent, the control effect of the comparative example 3 without the addition of the organic phosphorus is 71.2 percent, the control effect of the comparative example 4 using the nematicidal composition disclosed in Chinese patent CN201510064851.7 is 83.3 percent, the data of the experimental example are obviously superior to the comparative example, the reasonable compounding of the fluorine alkene sulfone and the organic phosphorus is illustrated, and the control effect can be obviously realized by adding the penetration assistant and the surface active assistant.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.