An apparatus, designed for the automatic recognition of the presence and of specific behaviour patterns of wood-boring insects, is introduced. From a wood sample, a mixture of noise and action induced substratum vibrations is picked up, amplified, filtered and translated into a sequence of computer-readable numbers which are passed to a microcomputer-based signal-pattern-recognition. If an incoming signal-pattern matches one of a behaviour-specific reference-pattern, the corresponding behaviour is transferred to the systems output. This technique is suitable for a fast, reliable and non-destructive recognition of infestation as well as for a quick valuation of new insecticides in screening by dosis-time-efficacy.

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