PERILAKU DAN LAJU SERANGAN PENGGEREK KAYU DI LAUT PADA KAYU TUSAM (PINUS MERKUSII JUNGH. et de Vr.)
| Main Author: | Muslich, Mohammad |
|---|---|
| Other Authors: | Pusat Litbang Hasil Hutan |
| Format: | Article info application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
Pusat Penelitian dan Pengembangan Hasil Hutan
, 2017
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| Online Access: |
http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3395 http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3395/2947 |
Daftar Isi:
- 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.