PERBANDINGAN TINGKAT KEAWETAN KAYU SENGON (Falcataria moluccana L. Nielsen) DAN KAYU SUGI (Cryptomeria japonica D. Don) DENGAN EKSTRAK LIMBAH KULIT KAYU JATI (Tectona grandis L.F.) TERHADAP SERANGAN RAYAP TANAH Coptotermes curvignathus Holmgren

Abstract

75 PERBANDINGAN TINGKAT KEAWETAN KAYU SENGON (Falcataria moluccana L. Nielsen) DAN KAYU SUGI (Cryptomeria japonica D. Don) DENGAN EKSTRAK LIMBAH KULIT KAYU JATI (Tectona grandis L.F.) TERHADAP SERANGAN RAYAP TANAH Coptotermes curvignathus Holmgren AbstractThe aim of the study was to obtain a comparison of the durability of sengon (Falcataria moluccana) and sugi wood (Cryptomeria japonica) after preservation with Jati (Tectona grandis) tree bark waste to subterranean termites Coptotermes curvignathus Holmgren attack and to determine the best concentration of wood preservation from Jati extract. Evaluation the durability of wood used the JIS K 1571 2004 standar method. Test parameters in the study were preservative retention, termite mortality and weight loss of the wood test sample. The results showed the highest retention was achieved in Sengon wood of 0.466 kg /m 3 and the followed by Sugi wood which was 0.740 kg /m 3 . The lowest termites mortality value was in non-teated wood of Sengon wood with value 13.091%, and in other sengon wood which treated by extract of Jati bark with concentration of 2%, 4%, 5%, the termites mortality was 100%. Meanwhile in Sugi wood the termites mortality in non-treated wood was 12.576% and other Sugi wood which treated by extract of Jati bark with concentration of 1%, 2%, 3%, 4%, 5% the mortality value reached 100%. The average percentage values of the highest weight loss was 15.483% in nontreated sugi wood, while the lowest weight loss was in sengon wood which was given 5% extract of teak bark with a concentration of only 2.099%. The optimal concentration of Jati tree bark for wood preservation to Sengon wood was on concentration 25, meanwhile in Sugi wood was on concentration 1%. PENDAHULUANJenis kayu fast telah dimanfaatkan sebagai bahan baku bangunan, furniture, mebel, kerajinan dan berbagai produk lain. Kayu fast growing memiliki kelas awet yang rendah, sekitar 80-85% kayu-kayu Indonesia memiliki keawetan rendah yang mudah diserang oleh organisme perusak kayu (Yunasfi, 2008). Jenis kayu yang memiliki keawetan rendah dan sering dimanfaatkan adalah kayu sengon (Falcataria moluccana). Pohon sengon dapat mencapai tinggi sekitar 30 -45 meter dengan diameter batang sekitar 70 -80 cm, berat jenis kayu sengon rata-rata sekitar 0,33 dan termasuk kelas awet IV -V (Wiryadiputra, 2007). Berbeda dengan di Indonesia, di Jepang kayu dengan kelas awet rendah yang sering digunakan adalah kayu sugi (Cryptomeria japonica). Kayu sugi memiliki kelas awat rendah yaitu termasuk ke dalam kelas awet III JURNAL TENGKAWANG (2018) Vol. 8 (2) : 75 -87

Potential utilization of Indonesian plant extracts for biothermicide to control subterranean termite attack (Coptotermes spp.): a review article

“…The percentage weight loss of the test wood of each extract in the wood preservation was performed resulted in different percentage and the results of the 12 articles reviewed the optimum concentration of the preservative formulation used to be the most effective in producing the smallest percentage weight loss. The weight loss of the test wood has an inversely correlation with the mortality observation but in one linear phenomenon, which is the higher concentration of preservative given, the mortality value will increase and the weight loss value will decrease [21]. The sawdust waste extract test on the preservation of sengon wood to the smallest weight loss percentage of 1.35% can increase the durability of sengon wood from durability class IV-V to class I-II, which means it is resistant to very resistant to subterranean termite attack.…”

Efficacy of teak and pine litter extract with several solvent against wood termites (Cryptotermes cynocephalus light)

“…To overcome this problem, several forms of control have been carried out, one of which is by making biopesticides. Biopesticide is an insecticide made from from plant parts that have strong toxic compounds for insects [4] effort Control in this way is ideal. This is because the materials for making Insecticides are abundant in nature.…”

PENGARUH PENAMBAHAN ENKAPSUL BIOCHAR TANDAN KOSONG KELAPA SAWIT TERHADAP PERKEMBANGAN AKAR SENGON (Falcataria moluccana)

“…This study concluded that the application of encapsulated biochar of oil palm empty fruit bunches with a percentage of 25% showed the best results on the growth of sengon roots compared to other treatments. Keywords: Encapsulation biochar; oil palm empty bunches; roots; sengon PENDAHULUAN Sengon (Falcataria moluccana) merupakan jenis pohon yang cepat tumbuh (Hidayat et al, 2017), penggunaannya yang serbaguna dan tidak membutuhkan persyaratan tumbuh yang rumit (Utari et al, 2018). Sengon memiliki daya hidup tinggi serta jangkau akar relatif luas yang dapat menembus tanah dengan baik (Mariany, 2019) dan memiliki nilai ekonomi yang cukup tinggi (Prayoga et al, 2018).…”