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The relationship between the mass of old house borer larvae Hylotrupes bajulus (L.) and their lenghts measured using radiograph

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Nowakowska M. , Krajewski A. , Witomski P.

Drewno : prace naukowe, doniesienia, komunikaty

2017

tom vol. 60, nr 199

81--88

Old house borer larvae were used in a normative investigation of wood preservatives. X-ray photographs were used to control the procedures of the laboratory tests for toxic substances performed on the old house borer larvae. Such photographs make it possible to determine the location of the larvae inside farm blocks and to measure the lengths of the larvae. In the experiment, wooden blocks on which old house borer larvae were feeding were X-rayed and the lengths of the larvae images on the films were measured. The exact lengths of the larvae extracted from the wood were compared with the lengths of their X-ray images. The mass of the larvae, which ranged from 0.05 g to 0.15 g. were related to the body lengths, ranging from 12 mm to 17.5 mm, as measured on the X-ray image.