Abstract: Compounds of the following formula: ##STR1## wherein Z.sup.3 represents halogen atom, straight or branched chain alkyl group having 1 to 10 carbon atoms, alkoxy group having 1 to 10 carbon atoms, alkylcarbonyl having 2 to 10 carbon atoms, alkoxyalkyl group having 2 to 4 carbon atoms, ##STR2## W represents halogen atom, alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, haloalkyl group having 1 to 4 carbon atoms, or nitro group, m is 0 or an integer of 1 to 2, and when m is 2, W may be same or different, and compositions for controlling insects, acari and nemati which contain such compound.

Abstract: Pyrazoline derivatives useful as insecticides having the formula ##STR1## wherein X represents a hydrogen atom or a halogen atom; Y represents a halogen atom, a trifluoromethyl group or --A--R'; R represents a C.sub.1-10 alkyl group, a lower alkenyl group or a lower alkynyl group; and A represents an oxygen atom, a sulfur atom, a sulfinyl group or a sulfonyl group and R' represents a halogen-substituted lower alkyl group.

Abstract: Pyrazoline derivatives useful as insecticides having the formula ##STR1## wherein R.sup.1 represents hydrogen atom, a lower alkyl group, (CH.sub.2).sub.n CN group, (CH.sub.2).sub.n OR group, phenyl group or a halogen-substituted phenyl group; R.sup.2 represents hydrogen atom or methyl group; Y represents hydrogen atom or chlorine atom; X represents oxygen atom, sulfur atom, sulfinyl or sulfonyl group; R.sup.3 represents a halogen-substituted lower alkyl group; and n is integer 1 to 3 and R represents a lower alkyl group.

Abstract: Ketone derivatives represented by the general formula (I) ##STR1## where R is --CH.sub.2 R.sup.1 (where R.sup.1 is a hydrogen atom or an alkyl group), a halogen-substituted alkyl group, a cyano-substituted alkyl group, a cyclopropyl group, ##STR2## (where R.sup.2 is a hydrogen atom or an alkyl group and Y is a hydrogen atom or a halogen atom) or ##STR3## (where R.sup.3 is a hydrogen atom, an alkyl group, a phenyl group or a halogen-substituted phenyl group, and Z is a hydrogen atom or a halogen atom), and X is an oxygen atom or a sulfur atom.

Abstract: Pyrazoline derivatives having the formula ##STR1## wherein R.sup.1 represents hydrogen atom, a lower alkyl group, phenyl group or a halogen-substituted phenyl group; R.sup.2 represents hydrogen atom or phenyl group which can have halogen substituents; X represents oxygen or sulfur atom; Y and Z respectively represent hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, nitro-group, trifluoromethyl group, a lower alkylthio group, an acyl group, nitrile group or a lower alkyl sulfonyl group.