PERILAKU DAN LAJU SERANGAN PENGGEREK KAYU DI LAUT PADA KAYU TUSAM (PINUS MERKUSII JUNGH. et de Vr.)

Mohammad Muslich

Abstract


This study   is intended   to recognize  the  behaviour  and  infestation   rate  of  marine  borers. Forty  samples  of pine  wood,  measuring  120  cm  x  5 cm x 5 cm,. vertically  floated  at Ram but Island seashore.  These samples  are divided   in  to  three  section:    top,  midle  and  bottom.    The observation   were carried out  after  1,  2,  3 and  6 months    by  splitting   the  sample.

The results  showed  that  the  infestation   started  from  the bottom   upwards.  The length  and diameter  of the burrow  is controlled    to  a  certain  extent    by  the  intensity   of  the  borer population    in  the  wood.   When crowded,   the  borer  may grow  only  a few  cm.   After six  months   of  experiment,    the  infestation   rate of  samples  showed   the following   regression equation;  i.e,  top section  Y 1=   0, 134 (X)2,375,   milde section   Y2= 2,569  (X)1,113   and bottom  section  Y 3=  3,334  (X)0,142.


References


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Mata, P.G. and F. R. Siriban, 1972. Resistance of wood to marine borers. Technical Note No. 171. FORPRIDE COM, College, Laguna 3720, Philippines.

Menon, K.D. 1957. A note on marin borers in Malayan water. The Malayan Forester, Vol. XX, No. 1. Coxton Press. Ltd. Kualalumpur.

Muslich, M. dan G. Sumarni, 1988. Intensitas serangan penggerek kayu di laut pada beberapa jenis kayu. Jurnal Penelitian Hasil Hutan, Vol. 5, No. 4: 203 - 206.

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DOI: https://doi.org/10.20886/jphh.1989.6.6.360-363

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