JPS60116603A - Mixed insecticidal composition - Google Patents

Abstract

PURPOSE:A mixed insecticidal composition, containing an oxime ether derivative effective against mosquito larvae and housefly larvae in combination with propoxur which is a carbamate based insecticide, and capable of controlling larvae and imagoes at the same time. CONSTITUTION:A mixed insecticide composition containing an oxime ether derivative of the formula (R1 and R2 are H, alkyl, halogenated alkyl, alkoxyalkyl, alkenyl, alkynyl, alkylthio, phenyl, pyridyl, furyl or thienyl or R1 and R2 together form a ring containing 0-2 O or S atoms; R3 and R4 are H or methyl; R5 is methyl or halogen; R6 is alkyl, methoxyl, halogen, etc.; X is O, S, etc.; Y is O or S; l is an integer 0-5; m is an integer 0-4; n is an integer 0-2) and propoxur (O-isopropoxyphenyl N-methylcarbamate) preferably at 1:20-20:1 ratio. The resultant composition is effective against injurious insects, e.g. cockroaches, planthoppers and green rice leafhoppers.

Description

Detailed Description of the Invention The present invention is based on the general formula (1) % formula % () [wherein l and R2 are the same or different, a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, a carbon atom number 1~3
0 an alkyl group partially or fully substituted with a halogen atom, an alkoxyalkyl group containing 2 to 8 carbon atoms,
It represents an alkenyl group having 2 to B carbon atoms, an alkynyl group having 2 to 4 carbon atoms, an alkylthio group having 1 to 2 carbon atoms, a phenyl group, a pyridyl group, a furyl group, or a chenyl group. Furthermore, by combining the loss and R2 at the terminal,
A saturated or unsaturated 5- or 6-membered ring containing 0 to 2 oxygen atoms or sulfur atoms in the ring can be formed.几8 and R4 are the same or different and represent a hydrogen atom or a methyl group, 几6 represents a methyl group or a halogen atom, 几6 is an alkyl group having 1 to 4 carbon atoms,
represents a methoxy group, a halogen atom, a trifluoromethyl group, or a nitro group; X represents an oxygen atom, a sulfur atom, or a methylene group; Y represents an oxygen atom or a sulfur atom; represents an integer of θ to 4, and n represents an integer of θ to 2, respectively. ] The oxime ether derivative shown and the carbamate insecticide propoxa (0-isopropoxyphenyl N
- methyl carbamate).

It is a well-known fact that the oxime ether derivative represented by the general formula (I) has an excellent control effect on mosquito larvae, house fly larvae, etc., as described in JP-A-58-150559. However, the oxime ether derivative represented by the general formula CI) has extremely low effectiveness in controlling adult insects. -10,000 Propoxor is used for cockroaches,
/N is a commercially available insecticide useful against mosquitoes, etc.

As a result of intensive studies aimed at simultaneous control of larvae and adults, the present inventors have discovered that by treating pest larvae and adults with a mixture obtained by mixing pest control agents and insecticides with different activities, We have found an insecticidal mixture composition that can act on the insects and, as a result, reduce the density of reproductive adults.

The composite of the present invention can be used for cockroaches such as the German cockroach,
It is effective against pests such as the Japanese brown-bottomed planthopper, planthoppers such as the black-spotted planthopper, and the black-spotted planthopper.

Examples of the oxime-ether derivative represented by the general formula (1) in this research include the following, but it goes without saying that the present invention is not limited to this L).

Incidentally, the oxime ether derivatives include optical isomers based on 几2 and R8 and geometric isomers based on R4 and R51, but it goes without saying that all of these are included in the present invention. When used as an insecticide, it is usually mixed with solid carriers, liquid carriers, surfactants, and other formulation auxiliaries to form emulsions, wettable powders, oils, etc.
Formulate into powder, etc.

Each preparation can contain 0.1 to 99% by weight of the oxime ether derivative and propoxa as active ingredients, and the mixing ratio of the oxime ether derivative and propoxa is 1:20 to 1:20. 20:1 is appropriate.

These formulations can be prepared according to conventional methods. In this case, the solid carrier may be clays (e.g. kaolin,
Bentonite, acid clay, pyrophyllite, sericite), talc, and other inorganic minerals (eg, hydrated silicon dioxide, pumice, diatomaceous earth, sulfur powder, activated carbon), and other fine powders or powders can be mentioned.

Liquid carriers include alcohols (e.g. methyl alcohol, ethyl alcohol), ketones (e.g. acetone, methyl ethyl ketone), ethers (e.g. ethyl ether, dioxane, cellosolve, tetrahydrofuran), aromatic hydrocarbons (e.g. benzene, toluene). , xylene, methylnaphthalene), fatty group hydrocarbons (e.g. gasoline, kerosene, kerosene), esters, nitriles, acid amides (e.g. methylformamide, dimethylacetamide), halogenated hydrocarbons (e.g. dichloroethane) , trichlorethylene,
Examples include carbon tetrachloride). Next, as surfactants, alkyl sulfates, alkyl sulfonates,
Examples include alkylaryl sulfonates, polyethylene glycol ethers, and polyhydric alcohol esters. In addition, usable fixing agents and dispersants include casein, gelatin, starch powder, OMO, gum arabic,
alginic acid, lignin sulfonate, bentonite,
Examples of stabilizers include molasses, polyvinyl alcohol, pine oil, and agar. Stabilizers include PAP (isopropyl phosphate), TCP (tricresyl phosphate), tall oil, epoxidized oil, various surfactants, and various other stabilizers. Examples include fatty acids or their esters.

Next, some formulation examples and test examples will be shown, but the present invention is of course not limited to these.

Formulation Example 1 10 each of oxime ether derivatives (1) to (112)
20 parts of propoxa, 20 parts of an emulsifier (a mixture of polyoxyethylene styrenated phenyl ether, polyoxyethylene styrenated phenyl ether polymer, and alkylaryl sulfonate) and 50 parts of xylene were added to the mixture, and these were thoroughly stirred and mixed. Then, each emulsion will be obtained.

Formulation Example 2 Each of the oxime ether derivatives (1) to (112) was 0.
Add 0.1 part of propoxa to 1 part, and add white kerosene to each part to make the total 100 parts, to obtain each oil agent.

Formulation Example 8 2 parts of propoxa was added to 1 part of each of the oxime ether derivatives (1) to (112), and each of these was mixed with 20 parts of acetone.
800 parts and 97 parts of Metzstarck were added to each,
After thorough stirring and mixing in a crusher, acetone is removed by evaporation to obtain each powder.

Test Example 1 Oxime ether derivatives (2), (29) and propoxa were diluted with an acetone solution to a predetermined concentration and locally applied to the entangled larvae of the leafhopper. After the treatment, the leafhopper larvae were released into potted A plants. One day after the treatment, the number of dead larvae was investigated, and after 7 days, the number of normal and abnormal emergence from the treated larvae was investigated. However, adults with curled wings, blackened body color, and intermediate between larval and adult type were considered abnormal adults.

The results are shown in Table 2.

Table 2 Test Example 2 Oxime ether derivative (2) and propoxa were diluted with an acetone solution to a predetermined concentration, and the raw material of each compound was treated at 0.05F per 5f of solid animal feed. After air-drying, the first instar larvae of the cat roach were released and the density change (larvae + adults) was investigated over time. The results are shown in Table 8.

Table 8

Claims (1)

[Scope of Claims] A mixed insecticidal composition characterized by containing an oxime ether derivative represented by the following general formula and propoxa (0-isopropoxyphenyl N-methyl carbamate) as active ingredients. [In the formula, 几1 and R2 are the same or different, hydrogen atom, alkyl group having 1 to 8 carbon atoms, 1 to 8 carbon atoms]
an alkyl group partially or entirely substituted with a halo 8゜gen atom, an alkoxyalkyl group containing 2 to 8 carbon atoms, an alkenyl group containing 2 to 8 carbon atoms, and an alkenyl group containing 2 to 8 carbon atoms.
-4 alkynyl group, alkylthio group having 1 to 2 carbon atoms, phenyl group, pyridyl group, furyl group or chenyl group. Furthermore, by bonding R1 and R2 at the terminals, a saturated or unsaturated 5- or 6-membered ring containing 0 to 2 oxygen atoms or sulfur atoms can be formed.R8 and R4 are the same or different,
Represents a hydrogen atom or a methyl group, R6 represents a methyl group or a halogen atom, Re represents an alkyl group having 1 to 4 carbon atoms, a methoxy group, a halogen atom, a trifluoromer group or a nitro group, and X represents a represents an oxygen atom, a sulfur atom or a methylene group, Y represents an oxygen atom or a sulfur atom, t represents an integer of θ to 5, m represents an integer of θ to 4, and n represents an integer of θ to 2, respectively. ]