Pesticidal aerosol formulation

Details Pesticidal aerosol formulation Pesticidal aerosol formulation

1999-08-17

2002-06-11

Levy, Neil S. (Department: 1616)

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

C424S045000, C424S405000, C424S421000, C514S471000

Reexamination Certificate

active

06403058

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a pesticidal aerosol formulation especially suitable for controlling termites.
BACKGROUND OF THE INVENTION
The houses damaged by termites have termite passages on or inside the surface of the wall, lumber, soil and so on. For controlling termites, especially for controlling the termites which inhabit the inside of the house, the method widely taken is that of pouring a controlling agent into the lumber or soil from the surface through a nozzle which is in a bored hole. However, in the application of a prior termite-controlling agent to houses, it was needed to pour the agent into many places for effective control in a wide area. Further, the applied agents are to penetrate into the wall of termite tunnels or a locus which termites inhabit, because said wall is wood in the case that the termite tunnel or the locus exists in the wood and said wall is soil solidified by termite secretion in the case that the termite tunnel or the locus exists in the soil. As a result, it is needed to pour a large amount of the agent to obtain a satisfactory controlling effect. Moreover, it is difficult to pour a large amount of agent into many places on walls or ceilings of houses, and so there are some cases that are difficult to apply the agent effectively.
The object of the present invention is to provide a pesticidal formulation suitable for termite-controlling having an excellent efficiency for controlling termites in houses.
SUMMARY OF THE INVENTION
The present inventors studied termite-controlling agents, and as a result, found that it is possible to control termites effectively even in the houses damaged by termites by using an aerosol formulation comprising a specific compound given in the general formula (1), (2) or (3), a powder carrier, a propellant and a specific solvent that is excellent in wide distribution at an application time and has decreased penetration into the wall of termite tunnels or lumber and completed the present invention.
In other words, the present invention serves a pesticidal aerosol formulation (hereinafter referred as to the present aerosol formulation) which comprises (a) a compound (hereinafter referred as to the present compound(s)) given by the general formula (1), (2) or (3):
wherein A represents 6-chloro-3-pyridyl group, 2-chloro-5-thiazolyl group, tetrahydrofuran-2-yl group, tetrahydrofuran-3-yl group, 5-methyltetrahydrofuran-3-yl group, 3-pyridyl group, 6-bromo-3-pyridyl group, 3-cyanophenyl group, 2-methyl-5-thiazolyl group, 2-phenyl-5-thiazolyl group or 2-bromo-5-thiazolyl group; R
1
represents hydrogen atom, methyl group, ethyl group, formyl group or acetyl group; R
2
represents methyl group, amino group, methylamino group, N,N-dimethylamino group, ethylamino group, N,N-diethylamino group, N-methyl-N-ethylamino group, 1-pyrollidinyl group, (6-chloro-3-pyridyl)methylamino group or N-methyl-N-(6-chloro-3-pyridyl)methylamino group; R
3
represents methyl group, ethyl group, propyl group, propenyl group or propynyl group; X represents nitrogen atom or CH group; Y represents cyano group, nitro group or trifluoroacetyl group; Z represents NH group or sulfur atom; D represents oxygen atom or —N(CH
3
)— group; m represents 0 or 1 and n represents 2 or 3,
(b) a powder carrier, (c) a propellant and (d) a solvent containing at least one selected from carboxylate esters being liquid at room temperature and alcohols being liquid at ordinary temperature.
DETAILED DESCRIPTION OF THE INVENTION
The present compounds utilized in the present invention are known as an active ingredient for pesticides in U.S. Pat. No. 5,532,365, U.S. Pat. No. 4,742,060, U.S. Pat. No. 4,849,432, U.S. Pat. No. 5,034,404, U.S. Pat. No. 5,750,548, U.S. Pat. No. 5,304,566 and EP-428941A.
Examples of the compound of the general formula (1) in the present compounds include (E)-N
1
-[(6-chloro-3-pyridyl)methyl]-N
2
-cyano-N
1
-methylacetamidine, N-[(6-chloro-3-pyridyl)methyl]-N-ethyl-N′-methyl-2-nitro-1,1-ethylidenediamine, 1-(6-chloro-3-pyridyl)methyl-3-methyl-2-cyanoguanidine, 1-(6-chloro-3-pyridyl)methyl-1,3-dimethyl-2-cyanoguanidine, 1-(6-chloro-3-pyridyl)methyl-1-ethyl-3-methyl-2-cyanoguanidine, 1-(6-chloro-3-pyridyl)methyl-1,3-dimethyl-3-(6-chloro-3-pyridyl)methyl-2-cyanoguanidine, 1-(6-chloro-3-pyridyl)methyl-3-methyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-3,3-dimethyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-1-methyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-1,3-dimethyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-3-ethyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-3-(6-chloro-3-pyridyl)methyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-3-methyl-2-trifluoroacetylguanidine, 1-(6-chloro-3-pyridyl)methyl-1-ethyl-3-methyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-1,3,3-trimethyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-1-ethyl-2-nitroguanidine, 1-(3-pyridyl)methyl-3-methyl-2-nitroguanidine, 1-(6-bromo-3-pyridyl)methyl-3-methyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-3-methyl-2-nitroguanidine, 1-(3-cyanophenyl)-3-methyl-2-nitroguanidine, 1-(4-chlorophenyl)methyl-3-methyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-3, 3-dimethyl-1-formyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-3,3-dimethyl-1-acetyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)-3-methyl-2-cyanoguanidine, 1-(2-chloro-5-thiazolyl)methyl-3,3-dimethyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-1-ethyl-3-methyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-1-acetyl-3,3-dimethyl-2-nitroguanidine, 1-(6-chloro-3-pyridyl)methyl-1-methyl-2-trifluoroacetylguanidine, 1-(2-chloro-5-thiazolyl)methyl-1,3-dimethyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-1-methyl-2-nitroguanidine, 1-(5-thiazolyl)methyl-3-methyl-2-nitroguanidine, 1-(2-methyl-5-thiazolyl)methyl-3,3-dimethyl-2-nitroguanidine, 1-(2-methyl-5-thiazolyl)methyl-3-methyl-2-nitroguanidine, 1-(2-phenyl-5-thiazolyl)methyl-3-methyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-3,3-diethyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-3-methyl-3-ethyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-3-(1-pyrrolidinyl)-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-1,3,3-trimethyl-2-nitroguanidine, 1-(2-bromo-5-thiazolyl)methyl-3-methyl-2-nitroguanidine, 1-(2-bromo-5-thiazolyl)methyl-3,3-dimethyl-2-nitroguanidine, 1-(2-chloro-5-thiazolyl)methyl-3-methyl-2-cyanoguanidine, 1-(tetrahydrofuran-3-yl)methyl-3-methyl-2-nitroguanidine and 1-(tetrahydrofuran-2-yl)methyl-3-methyl-2-nitroguanidine.
Examples of the compound of the general formula (2) in the present compounds include 3-[(6-chloro-3-pyridyl)methyl]-N-cyano-2-thiazolinimine and 1-[(6-chloro-3-pyridyl)methyl]-N-nitrotetrahydropyrimidin-2-imine.
Examples of the compound of the general formula (3) in the present compounds include 3-[(2-chloro-5-thiazolyl)methyl]-5-methyl-4-nitroiminotetrahydro-1,3,5-oxadiazine, 3,5-dimethyl-1-[(6-chloro-3-pyridyl)methyl]-2-nitroiminohexahydro-1,3,5-triazine, 3,5-dimethyl-1-[(2-chloro-5-thiazolyl)methyl]-2-nitroiminohexahydro-1,3,5-triazine, 3-ethyl-5-methyl-1-[(6-chloro-3-pyridyl)methyl]-2-nitroiminohexahydro-1,3,5-triazine, 3-n-propyl-5-methyl-1-[(6-chloro-3-pyridyl)methyl]-2-nitroiminohexahydro-1,3,5-triazine, 3-n-propyl-5-methyl-1-[(2-chloro-5-thiazolyl)methyl]-2-nitroiminohexahydro-1,3,5-triazine, 3-(2-propenyl)-5-methyl-1-[(6-chloro-3-pyridyl)methyl]-2-nitroiminohexahydro-1,3,5-triazine and 3-(2-propynyl)-5-methyl-1-[(6-chloro-3-pyridyl)methyl]-2-nitroiminohexahydro-1,3,5-triazine.
The amount of the present compound utilized in the present aerosol formulation is usually 0.0001 to 10% by weight.
Examples of the powder carrier utilized in the present invention include inorganic powders such as silicic acid compounds (for example, anhydrous silica), aluminum oxide, kaolin, talc, titanium oxide and magnesium carbonate; synthetic resin powders such as polyurethane, polyamide and polypropylene; and salts

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