| abstract |
An ether compound represented by the following formula (I), its production and insecticidal compositions containing it as an active ingredient:n wherein R 1 , represents a halogen atom or a methyl group; R 2 represents a hydrogen atom or a fluorine atom; R 3 represents a hydrogen atom, a halogen atom or a methyl group; R 4 represents a (C 1 -C 3 )alkyl group; Y represents an oxygen atom, a sulfur atom, a methylene group or -NH-; and Z represents a nitrogen atom or -CH = . |