Compounds of the general formula IMAGE (I) in which each of A and B independently represents a halogen atom or an alkyl group; m is 0 or 1; Q represents a group of general formula IMAGE in which R is as defined, or Q represents a group of general formula -CR2R3R4 in which R2, R3 and R4 are as defined; together with processes for the preparation of such compounds, pesticidal compositions containing them and their pesticidal use, and certain novel intermediates.
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