Insecticidal composition comprising arylalkyloxy pyrimidine derivatives as active ingredients

Abstract

The present invention relates to an insecticidal composition comprising an arylalkyloxy pyrimidine derivative as an active ingredient, comprising a compound represented by Formula I and one or more compounds selected from the group consisting of flupyradifurone, isoprocarb, chlorantraniliprole, nitenpyramine. The present invention also relates to a method for controlling pests in rice, legumes, fruit trees, fruits, vegetables, flowers and ornamental plants using the insecticidal composition, particularly a method for controlling pests in rice; Formula I.

Description

[0001] This application is a divisional application of application number 2022107090484, filed on June 22, 2022, entitled "Insecticidal Composition Containing Arylalkoxypyrimidine Derivatives as Active Ingredients". Technical Field

[0002] This invention relates to insecticidal compositions comprising arylalkoxypyrimidine derivatives as active ingredients, and their uses and methods of application. Background Technology

[0003] Rice (of the genus *Oryza*, especially Asian cultivated rice (*Oryza sativa*)) is an important staple food worldwide. In Asia, it is a staple food and an important part of many cultivations. Therefore, rice is an important crop and is widely cultivated, especially in Asia.

[0004] Pesticides suitable for use in rice must be well tolerated by both the rice plant and its environment. Furthermore, many pests have developed resistance to pesticides commonly used in rice. Therefore, pesticides suitable for rice are effective against pests that have developed resistance to other pesticides. Not all pesticides meet the requirements for use under these conditions.

[0005] The active ingredient of the arylalkoxypyrimidine derivative (Formula I) involved in this invention is known from WO2013115391A1. Due to differences in control efficacy caused by the species, growth period, habitat characteristics, etc. of the target pests, the development of resistance, and limitations on the amount and frequency of use, repeated and unique use of the compound of Formula I cannot provide effective pest control.

[0006] (Formula I)

[0007] Therefore, the object of the present invention is to provide an insecticidal composition containing an arylalkoxypyrimidine derivative as an active ingredient, which can effectively control pests that cannot be controlled or are difficult to control by treatment alone, especially rice pests. Summary of the Invention

[0008] The purpose of this invention is to address the above-mentioned shortcomings by providing an insecticidal composition containing arylalkoxypyrimidine derivatives as active ingredients, which can effectively control pests that cannot be controlled or are difficult to control by treatment alone, especially rice pests.

[0009] The present invention provides an insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient, comprising a compound represented by Formula I and one or more compounds selected from flupyrflufenone, isoprocarb, tetrachlorantraniliprole, and acetamiprid.

[0010] Formula I

[0011] Surprisingly, it has been found that the combined application of Formula I compounds with one or more compounds selected from those with insecticidal activity resulted in enhanced pest control compared to the possible control rates of applying the individual compounds alone. This unexpected effect is a true synergistic effect, rather than simply an additive effect of activity.

[0012] The presence of synergistic effects was determined using the method described in Colby SR, “Calculating Synergistic and Antagonistic Responses of Herbicide Combinations,” Weeds, 1967, 15, 20-22.

[0013] An insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient according to the present invention may comprise a synergistically effective amount of a compound of formula I and flupyrfuranone, wherein the weight ratio of the compound of formula I to flupyrfuranone may be about 20:1 to 1:20, preferably 10:1 to 1:10, and more preferably 5:1 to 1:5.

[0014] An insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient according to the present invention may contain a synergistically effective amount of a compound of formula I and isoprocarb, wherein the weight ratio of the compound of formula I to isoprocarb may be about 10:1-1:20, preferably 5:1-1:15, preferably 1:1-1:10, and more preferably 1:1-1:5.

[0015] An insecticidal composition of the present invention comprising an arylalkoxypyrimidine derivative as an active ingredient may comprise a synergistically effective amount of a compound of formula I and tetrachlorantraniliprole, wherein the weight ratio of the compound of formula I to tetrachlorantraniliprole may be about 20:1-1:20, preferably 20:1-1:10, more preferably 20:1-1:5, more preferably 10:1-1:5, even more preferably 10:1-1:1, and more preferably 5:1-1:1.

[0016] An insecticidal composition of the present invention comprising an arylalkoxypyrimidine derivative as an active ingredient may comprise a synergistically effective amount of a compound of formula I and acetamiprid, wherein the weight ratio of the compound of formula I to acetamiprid may be about 20:1 to 1:20, preferably 20:1 to 1:10, more preferably 15:1 to 1:10, more preferably 10:1 to 1:10, and even more preferably 10:1 to 1:5.

[0017] The insecticidal composition containing arylalkoxypyrimidine derivatives as active ingredients is used to prevent or control hemiptera or lepidopteran pests.

[0018] The insecticidal composition containing an arylalkoxypyrimidine derivative as an active ingredient is used for the prevention or control of planthoppers, whiteflies, pyralids, noctuids, leafhoppers, aphids, thrips, and their larvae and eggs.

[0019] The insecticidal composition containing arylalkoxypyrimidine derivatives as active ingredients is used to control pests in rice, beans, fruit trees, fruits, vegetables, flowers, and ornamental plants.

[0020] The insecticidal composition containing arylalkoxypyrimidine derivatives as active ingredients is used to control rice pests in rice.

[0021] In particular, the insecticidal compositions of the present invention containing arylalkoxypyrimidine derivatives as active ingredients are especially effective against the following pests; specifically including the following pests:

[0022] Aphids include species such as the oat bird-cherry aphid (Rhopalosiphumpadi), the wheat two-forked aphid (Schizaphis graminum), the cornleaf aphid (Sitobion akebiae), the tobacco aphid (Myzus persicae), the cotton aphid (Aphis gossypii), the cabbage aphid (Brevicoryne brassicae), the peach aphid (Myzus persicae), the peach big-tailed aphid (Hyalopterus pruni), the light-tipped tongue aphid (Brachycaudus helichrysi), and the willow aphid (Aphis farinoseyanagicola).

[0023] Planthoppers (Delphacidae) include brown rice planthopper (Nilaparvatalugens), barnyard planthopper (hieunka (Sogatella panicicola)), gray planthopper (himetobiunka (Laodelphaxstriatellus)), and white-backed planthopper (Sogatella furcifera).

[0024] Pyralidae family includes species such as the rice stem borer (Chilo suppressalis), the rice leaf roller (Scirpophaga incertulas), the rice leaf roller (Cnaphalocrocis medinalis), the pink borer (Sesamia inferens), the lima bean pod borer (Etiella zinckenella), and the rice white borer (Scirpophaga innotata).

[0025] Whiteflies include species such as the cabbage whitefly (Aleurodes brassicae), the tobacco whitefly (Bemisia tabaci), the greenhouse whitefly (Trialeurodes vaporariorum), the silverleaf whitefly (Bemisia argentifolii), and the citrus whitefly (Citrus whitefly (Dialeurodes citri)).

[0026] Psyllidaceae family, such as pear psyllid (psyllapyrisuga) and citrus psyllid (diaphorinatabaci);

[0027] Noctuidae (Spodoptera exigua, Orientaltabacco budworm, Helicoverpaassulta, Tomato stalk moth, Spodoptera litura, Fallarmyworm, Cabbage armyworm, Heliothisvirescens);

[0028] Thrips (family Thrips) include rice thrips (ineazamiuma (Stenchaetothrips biformis)), greenhouse thrips (kurotonazamiuma (Heliothrips haemorrhoidalis)), yellow thrips (chanokiiroazamiuma (Scirtothrips dorsalis)), tobacco thrips (negiazamiuma (Thripstabaci)), western flower thrips (mikankiiroazamiuma (Franklinella occidentalis)), onion thrips (negikuroazamiuma (Thrips alliorum)), yellow-breasted thrips (hanaazamiuma (Thripshawaiiensis)), and flower thrips (hirazuhanaazamiuma (Frankliniella intonsa)).

[0029] Cicadidae (leafhopper family) includes species such as the white-winged leafhopper (inekiirohimeyokobai (Thaia subrufa), the two-spotted black-tailed leafhopper (kurosujitsumaguroyokobai (Nephotettix nigropictus)), the large white leafhopper (shirooyokobai (Cicadella spectra), the two-spotted black-tailed leafhopper (taiwantsumaguroyokobai (Nephotettix virescens)), the black-tailed leafhopper (green rice leafhopper (Nephotettix cincticeps)), the small green leafhopper (leafhoppers (Empoasca sp.), the two-spotted leafhopper (futatenyokobai (Macrosteles fascifrons), the wheat leafhopper (mugiyokobai (Sorhoanus tritici)), and the apple leafhopper (ringomadarayokobai (Orientus ishidai)).

[0030] The insecticidal composition containing arylalkoxypyrimidine derivatives is used for the prevention or control of rice aphids, tobacco aphids, cotton aphids, peach aphids, brown planthoppers, barnyard planthoppers, gray planthoppers, white-backed planthoppers, rice thrips, western flower thrips, tobacco thrips, yellow-breasted thrips, tea yellow thrips, flower thrips, rice stem borers, rice leaf rollers, white-winged leafhoppers, black-tailed leafhoppers, and their larvae and eggs.

[0031] In particular, the insecticidal compositions of the present invention containing arylalkoxypyrimidine derivatives as active ingredients exhibit a surprising "synergistic" effect on the prevention or control of planthoppers, whiteflies, psyllids, aphids, thrips, and their larvae and eggs.

[0032] The insecticidal composition of the present invention, comprising an arylalkoxypyrimidine derivative as an active ingredient, exhibits excellent control efficacy against planthoppers, whiteflies, pyralids, noctuids, leafhoppers, aphids, thrips, and their larvae and eggs at low doses.

[0033] In particular, the insecticidal composition comprising arylalkoxypyrimidine derivatives as active ingredients of the present invention exhibits excellent control efficacy against rice aphids, tobacco aphids, cotton aphids, peach aphids, brown planthoppers, barnyard planthoppers, gray planthoppers, white-backed planthoppers, rice thrips, western flower thrips, tobacco thrips, yellow-breasted thrips, tea yellow thrips, flower thrips, rice stem borers, rice leaf rollers, white-winged leafhoppers, black-tailed leafhoppers, and their larvae and eggs at low doses.

[0034] The present invention provides an insecticidal composition containing an arylalkoxypyrimidine derivative as an active ingredient, which can effectively control pests that cannot be controlled or are difficult to control by treatment alone.

[0035] The insecticidal composition of the present invention, which contains arylalkoxypyrimidine derivatives as active ingredients, is particularly important for controlling pests in various crops such as rice, beans, fruit trees and fruits, vegetables, flowers and ornamental plants.

[0036] The insecticidal composition of the present invention, which contains arylalkoxypyrimidine derivatives as active ingredients, is particularly suitable for rice.

[0037] The insecticidal composition of the present invention, comprising an arylalkoxypyrimidine derivative as an active ingredient, is particularly suitable for controlling rice pests, especially brown planthopper (Nilaparvata lugens), gray planthopper (Laodelphaxstriatellus), white-backed planthopper (Sogatella furcifera), rice stem borer (Chilo suppressalis), three-spotted rice stem borer (Scirpophaga incertulas), rice leaf roller (Cnaphalocrocis medinalis), rice water weevil (Lissorhopterus oryzophilus), two-spotted leafhopper (Nephotettix virescens), rice green bug (Nerzara viridula), rice stink bug (Oebalus pugnax), wheat long-tubed aphid (Macrosiphumavenae), and rice thrips (Chloethrips oryzae).

[0038] In particular, the rice varieties suitable for this invention include indica rice (Oryza sativa subsp. indica), japonica rice (Oryza sativa subsp. japonica), tropical japonica rice (Oryza sativa subsp. javanica), glutinous rice (Oryza sativa subsp. glutinosa), and fragrant rice (Oryza sativa Aromatica group).

[0039] The insecticidal compositions of the present invention comprising arylalkoxypyrimidine derivatives as active ingredients are active against both generally susceptible and resistant species, and exhibit excellent activity against all or single developmental stages. Therefore, the insecticidal compositions of the present invention comprising arylalkoxypyrimidine derivatives as active ingredients can be applied to any and all developmental stages of pests, such as eggs, larvae, pupae, and adults.

[0040] The present invention provides a method for protecting plants from pests by contacting the insecticidal composition comprising an arylalkoxypyrimidine derivative with the plant, plant propagation material, or soil or water in which the plant grows.

[0041] A method for preventing or controlling pests and their larvae and eggs, comprising applying the insecticidal composition containing an arylalkoxypyrimidine derivative to the target pest, plant seeds, plants or the fruit of plants or the soil in which the plants grow or soil or water suitable for plant growth.

[0042] The insecticidal composition of the present invention can be applied before and after pests infest plants, plant propagation materials, or the soil or water in which plants grow.

[0043] The insecticidal composition of the present invention is particularly suitable for treating seeds to protect them from pests, especially soil-borne pests, and to protect the roots and buds of the resulting seedlings from soil pests and leaf insects.

[0044] The present invention also relates to a method for protecting seeds from insects, especially soil insects, and for protecting the roots and shoots of seedlings from insects, especially soil and leaf insects, said method comprising treating the seeds with the insecticidal composition described in the present invention before sowing and / or after pre-germination.

[0045] Suitable application methods include soil treatment, seed treatment, furrow application, inlet application, and foliar application. Foliar application involves applying the insecticidal composition of the present invention to the leaves of plants, for example, via a spraying device. Seed treatment techniques include seed dressing, seed coating, seed powdering, seed soaking, and seed granulation. Soil treatment includes soil soaking, root soaking, or soil irrigation. Furrow application typically involves digging furrows in cultivated land, sowing seeds in the furrows, applying the insecticidal composition of the present invention to the furrows, and sealing the furrows.

[0046] When the insecticidal composition of the present invention containing an arylalkoxypyrimidine derivative as an active ingredient is applied to rice, suitable application methods include granule application, seedling box application, and foliar application.

[0047] Applicants typically use the insecticidal compositions of the present invention, which contain arylalkoxypyrimidine derivatives as active ingredients, in backpack sprayers, spray cans, spray aircraft, or irrigation systems. The insecticidal compositions of the present invention are typically formulated with water, buffers, and / or other adjuvants to the desired application concentration to obtain a ready-to-use spray.

[0048] The insecticidal compositions of the present invention containing arylalkoxypyrimidine derivatives as active ingredients include not only ready-to-use compositions that can be applied to plants, plant propagation materials or soil or water bodies in which plants grow using suitable devices, but also concentrated solutions that must be diluted with water before application.

[0049] The insecticidal composition of the present invention, which contains an arylalkoxypyrimidine derivative as an active ingredient, varies with a variety of factors, such as the purpose, the pest to be controlled, the plant's growth status, the pest's emergence trend, climate, environmental conditions, formulation, application method, application site, and application time.

[0050] For foliar application, the application rate of the active ingredient of the present invention can be 1g-1000g / ha, preferably 1-750g / ha, and more preferably 1g-500g / ha.

[0051] For soil treatment and furrow application, the application rate of the active ingredient of the present invention can be 1g-1000g / 100m2, preferably 5g-500g / 100m2, and more preferably 5g-300g / 100m2.

[0052] For seed application, the amount of active ingredient relative to the seed weight can be 0.01wt%-50wt%, preferably 0.1wt%-10wt%.

[0053] The insecticidal compositions of the present invention comprising arylalkoxypyrimidine derivatives can be formulated as a composition of their active ingredient compounds suitable for application, or can be applied as a combination of appropriate doses of commercial formulations.

[0054] The insecticidal composition comprising arylalkoxypyrimidine derivatives of the present invention may be in solid formulation or liquid formulation.

[0055] The formulation of the insecticidal composition containing arylalkoxypyrimidine derivatives described in this invention can be prepared by mixing the active ingredient with a formulation adjuvant.

[0056] The required formulation adjuvants include, for example, liquid diluents, solid diluents, surfactants such as emulsifiers or dispersants, and other additives.

[0057] Suitable liquid diluents include water or organic solvents, such as butanol, cyclohexanone, vegetable oils, methyl oleate, propylene glycol, high-boiling aromatics, dimethyl sulfoxide, and water.

[0058] Suitable solid diluents include talc, diatomaceous earth, magnesium aluminum silicate, activated clay, kaolin, clay, gypsum, bentonite, silica, light calcium carbonate, limestone, sawdust, corn starch, and soluble starch.

[0059] Suitable surfactants also include emulsifiers and dispersants. Suitable emulsifiers can be anionic and / or non-ionic emulsifiers, such as fatty alcohol polyoxyethylene ethers, alkyl polyoxyethylene ethers, alkanolamide polyoxyethylene ethers, fatty acid polyoxyethylene ethers, fatty amine polyoxyethylene ethers, vegetable oil polyoxyethylene ethers, alkylphenol polyoxyethylene ether formaldehyde condensates, alkyl glycosides, block polyethers, polyglycerol ether fatty acid esters, alkyl aryl sulfonates, alkyl and alkenyl sulfonates, polyoxyethylene ether sulfate salts, polycyclic aromatic hydrocarbon sulfonate condensates, succinate sulfonates, etc.

[0060] Suitable dispersants can be alkyl naphthalene sulfonates, bis(alkyl)naphthalene sulfonate formaldehyde condensates, naphthalene sulfonic acid formaldehyde condensates, alkylphenol polyoxyethylene phosphates, alkylphenol polyoxyethylene ether formaldehyde condensate sulfates, alkylphenol polyoxyethylene ether phosphates, alkylphenol polyoxyethylene ethers, castor oil ethylene oxide adducts, ethylene oxide-propylene oxide block copolymers, alkylphenol polyoxyethylene ether formaldehyde condensates, octylphenol polyoxyethylene ether sulfates, and methylcellulose. Examples include sodium lignosulfonate, calcium lignosulfonate, sodium methylnaphthalene sulfonate formaldehyde condensates, sodium naphthalene sulfonate formaldehyde condensates, and sodium methylene naphthalene sulfonate.

[0061] The insecticidal composition of the present invention, which contains arylalkoxypyrimidine derivatives as active ingredients, exhibits high synergistic pest control effects, reduces the effective dose rate, increases environmental safety, and reduces the incidence of pest resistance.

[0062] The insecticidal composition containing arylalkoxypyrimidine derivatives as active ingredients described in this invention can also be applied in combination with other active ingredients, such as fungicides, bactericides, attractants, insecticides, acaricides, nematicides, growth regulators, herbicides, safeners, fertilizers, or chemical pheromones.

[0063] The insecticidal composition of the present invention, comprising an arylalkoxypyrimidine derivative as an active ingredient, can solve at least one problem such as improving biological properties, providing synergistic properties, reducing dosage rate, broadening the activity spectrum, combining knockdown activity and long-lasting effect, and managing resistance to delay resistance. Detailed Implementation

[0064] The present invention will be further described below with reference to embodiments.

[0065] Biological test cases

[0066] The expected effect of a specific combination of two active components can be calculated using the so-called "Colby formula" (see SRColby, "Calculating Synergistic and Antagonistic Responses of Herbicide Combinations", Weeds 1967, 15, 20-22):

[0067]

[0068] X represents the control effect of active ingredient A at a dosage of mg / ha or a concentration of m ppm, expressed as a percentage of the untreated control.

[0069] Y represents the control effect of active ingredient B at a dosage of ng / ha or a concentration of n ppm, expressed as a percentage of the untreated control.

[0070] E represents the control effect of active ingredients A and B when used at dosages of m and ng / ha or concentrations of m and n ppm, expressed as a percentage of the untreated control.

[0071] If the actual control effect exceeds the calculated value, the lethal effect of the composition is superadditive, that is, there is a synergistic effect.

[0072] Experiment Example 1: Experiment with cotton aphids

[0073] Preparation of the drug solution: Prepare a stock solution of the active ingredient with acetone, and then dilute it with 0.1% Tween-80 aqueous solution to the required concentration.

[0074] During the experiment, the cotton plants were 25-35 cm tall, with a BBCH (Browser-to-Hill Size) of 14-15 cm. Aphids were introduced naturally in potted plants; prior to the experiment, aphid propagation was performed to ensure even distribution on each plant. The pesticide was applied when the aphid population was at least 20 aphids per leaf, spraying evenly on both sides of the plant. No experimental or control pesticides were used during the experiment. Each treatment was replicated four times, with two pots per replicate and two cotton seedlings per pot. A water-based blank control was included. No phytotoxicity was observed in the cotton plants during the experiment.

[0075] Investigate the number of aphids on the whole cotton plant: investigate the initial population of aphids before applying the pesticide, and investigate the number of live aphids on the whole cotton plant 3 days after applying the pesticide.

[0076] Methods for calculating drug efficacy:

[0077] Insect population reduction rate (%) = ×100

[0078] Prevention efficacy (%) = ×100

[0079] Table 1. Control efficacy against cotton aphids

[0080]

[0081] The experimental results in Table 1 show that the combination of compound I with flupyrrolidone, isoprocarb, and acetamiprid achieved a synergistic effect in controlling cotton aphids.

[0082] Experiment Example 2: Experiment with Brown Planthoppers

[0083] Preparation of the drug solution: Prepare a stock solution of the active ingredient with acetone, and then dilute it with 0.1% Tween-80 aqueous solution to the required concentration.

[0084] Rice seedling preparation: Transplant healthy rice seedlings at the 2-3 leaf stage into disposable cups for later use. The rice variety is japonica rice 46.

[0085] Spraying treatment: According to the test plan, spray the pesticide using a mobile spray tower, and set the spraying speed according to the water consumption.

[0086] Extracting brown planthopper nymphs: Use a thin tube to extract 10-20 2nd-3rd instar brown planthopper nymphs and place them in a milk tea cup; immediately cover the cup with the lid to prevent escape. Investigate the initial population of insects before application and the number of live insects 3 days after application.

[0087] Methods for calculating drug efficacy:

[0088] Insect population reduction rate (%) = ×100

[0089] Prevention efficacy (%) = ×100

[0090] Table 2. Control efficacy against brown planthoppers

[0091]

[0092] The experimental results in Table 2 show that the combination of compound I with flupyrflufenone, isoprocarb, tetrachlorantraniliprole, and acetamiprid has a synergistic effect on the control of brown planthoppers.

Claims

1. An insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient, characterized in that, It comprises a compound represented by Formula I and acetamiprid, wherein the weight ratio of the compound of Formula I to acetamiprid is 20:1 to 1:20; Equation I.

2. The insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient according to claim 1, characterized in that, The weight ratio of the compound of Formula I to acetamiprid is 20:1 to 1:

10.

3. The insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient according to claim 1, characterized in that, The preferred weight ratio of the compound of Formula I to acetamiprid is 15:1 to 1:

10.

4. The insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient according to claim 1, characterized in that, The weight ratio of the compound of Formula I to acetamiprid is 10:1 to 1:

10.

5. The insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient according to claim 1, characterized in that, The weight ratio of the compound of Formula I to acetamiprid is 10:1 to 1:

5.

6. The use of the insecticidal composition of claim 1, comprising an arylalkoxypyrimidine derivative as an active ingredient, for the prevention or control of planthoppers, whiteflies, pyralids, noctuids, leafhoppers, aphids, thrips, and their larvae and eggs.

7. The insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient as described in claim 1 is used for the prevention or control of rice aphids, tobacco aphids, cotton aphids, peach aphids, brown planthoppers, barnyard planthoppers, gray planthoppers, white-backed planthoppers, rice thrips, western flower thrips, tobacco thrips, yellow-breasted thrips, tea yellow thrips, flower thrips, rice stem borers, rice leaf rollers, white-winged leafhoppers, black-tailed leafhoppers, and their larvae and eggs.

8. The insecticidal composition comprising an arylalkoxypyrimidine derivative as an active ingredient as described in claim 1 is used to control pests in rice, beans, fruit trees, fruits, vegetables, flowers, and ornamental plants.

9. The insecticidal composition of claim 1, comprising an arylalkoxypyrimidine derivative as an active ingredient, is used to control rice pests in rice.

10. The insecticidal composition of claim 1, comprising an arylalkoxypyrimidine derivative as an active ingredient, is used to control the following rice pests in rice: brown planthopper (Nilaparvata lugens), gray planthopper (Laodelphax striatellus), white-backed planthopper (Sogatella furcifera), rice stem borer (Chilo suppressalis), three-spined rice stem borer (Scirpophaga incertulas), rice leaf roller (Cnaphalocrocis medinalis), rice water weevil (Lissorhopterus oryzophilus), two-spotted leafhopper (Nephotettix virescens), rice green bug (Nerzara viridula), rice stink bug (Oebalus pugnax), wheat long-tubed aphid (Macrosiphumavenae), and rice thrips (Chloethrips oryzae).

11. The insecticidal composition of claim 1, comprising an arylalkoxypyrimidine derivative as an active ingredient, is used to control rice pests in rice, wherein the rice varieties include indica rice (Oryza sativa subsp. indica), japonica rice (Oryza sativa subsp. japonica), tropical japonica rice (Oryza sativa subsp. javanica), glutinous rice (Oryza sativa subsp. glutinosa), and fragrant rice (Oryza sativa Aromatica group).

12. A method for protecting plants from pest infestation, characterized in that, The insecticidal composition comprising an arylalkoxypyrimidine derivative as described in claim 1 is brought into contact with plants, plant propagation material, or soil or water in which plants grow.

13. A method for preventing or controlling pests and their larvae and eggs, characterized in that, The insecticidal composition comprising an arylalkoxypyrimidine derivative as described in claim 1 is applied to target pests, plant seeds, plants or the fruit of plants, or the soil in which plants grow or soil or water suitable for plant growth.

14. A method for controlling rice pests in rice, characterized in that, The method comprises applying to the rice pest the insecticidal composition comprising an arylalkoxypyrimidine derivative according to any one of claims 1-5.

15. The method of claim 13, wherein the method comprises granule application, seedling box application, or foliar application.

16. The insecticidal composition comprising an arylalkoxypyrimidine derivative as described in claim 1 is used to treat seeds to protect them from insect damage.

17. A method for protecting seeds from insects, characterized in that, The method includes treating seeds with the insecticidal composition of claim 1 before sowing and / or after pre-germination.

18. A pesticide composition, characterized in that, An insecticidal composition comprising a liquid or solid diluent and an arylalkoxypyrimidine derivative as described in any one of claims 1-5.

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