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All Journal JURNAL HUTAN LESTARI Agrin : Jurnal Penelitian Pertanian Jurnal Pengabdian Masyarakat (ABDIRA)
Dina Setyawati
Faculty of Forestry, Tanjungpura University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Computer Science & IT Languange, Linguistic, Communication & Media Nursing Social Sciences Other

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BIAYA PRODUKSI TEPUNG SAGU (Metroxylon sagu Rottb) SECARA SEMI MEKANIS PADA INDUSTRI USAHA KECIL DI DESA KOREK KECAMATAN SUNGAI AMBAWANG KABUPATEN KUBU RAYA Bagaskara, Julio; Hardiansyah, Gusti; Setyawati, Dina
JURNAL HUTAN LESTARI Vol 8, No 3 (2020): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v8i3.41415

Abstract

Sago is a plant can be source of foods, and have a economic value. Production of sago flour need stages and experience. The purpose of this study is to describe the activity of sago flour production, analyze the cost, count revenue, and analyze advisability businesss sago flour production in Korek, Village of Sungai Ambawang, Sub-District of Kubu Raya Regency. This study uses survey method and interview technique. Production at Akos industry includes: supplying basic materials, stripping, splitting, rasping, filtering, precipitating, drying, milling, and packaging. The total costs of production at Akos industry is Rp 258.669,39/ hour, it is the sum of fixed costs and variable costs. Fixed costs are the cost of depreciation and capital interest is about Rp 3.717,47/ hour. Variable costs include the cost of basic materials, costs of transporting basic materials, employee salaries, fuel, packaging materials and delivery cost of raw materials is about Rp 254.951,92/ hour. Revenue of Akos industry is Rp 410.576,92/ hour gotten from selling sago flour class A is about 14 ton and selling sago flour class B is about 3 ton. Net income of Akos industry is Rp Rp 151.907,53/ hour. The based on the analysis, Akos industry has R/C value is 1,59. Because the value of R/C more than 1, so business of Akos flour sago industry is profitable, and advisable to be run.Keywords: Cost production, Diagram of sago flour production, R/C analysis
KUALITAS ARANG BRIKET BERDASARKAN PERSENTASE ARANG BATANG KELAPA SAWIT (ELAEIS GUINEENSIS JACQ) DAN ARANG KAYU LABAN (VITEX PUBESCENS VAHL) Kahariayadi, Aloysius; Setyawati, Dina; haida, Nur; Diba, Farah; Roslinda, Emi
JURNAL HUTAN LESTARI Vol 3, No 4 (2015): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v3i4.13182

Abstract

Energy is a major component in all human activities. The main source of energy for humans are natural resources derived from fossil carbon, these are petroleum, coal, and gas . The research aimed to determine the quality of charcoal briquettes based on ration percentage of charcoal oil palm trunks and charcoal Laban wood. This study used a completely randomized design. The percentage of oilpalm trunks charcoal (OTC) and Laban wood charcoal (LWC) as follow: 100% OTC; 20% OTC: 80% LWC; 40% OTC : 60%LWC; 60%OTC : 40% LWC ; 80% : 20% LWC; 100% LWC. Particle size of charcoal was 20 mesh adhesive tapioca flour. The charcoal briquettes size was 30-40 mm heigh with diameter 55 mm and made with hydraulic press with pressure 5 tons. Before testing the quality, charcoal briquettes was dried for 48 hours in oven with temperature 80oC. evaluation the quality of charcoal briquettes based on SNI 01-6235-2000. The average value of moisture content ash content, volatile matter content valve and carbon qualified the SNI 01-6235-2000 standard.  The best value was achieved on charcoal briquettes with ratio percentage 40% oil palm trunks charcoal and 60% Laban wood charcoal with average calorific value 6377,67 cal/g. the charcoal briquettes produced can be used as an alternative energy for the society. Keywords: Bioenergy, charcoal briquettes, Laban, oil palm
KARAKTERISTIK PAPAN PARTIKEL DARI BATANG PANDAN MENGKUANG (Pandanus atrocarpus Griff) BERDASARKAN UKURAN PARTIKEL DAN KONSENTRASI UREAFORMALDEHIDA Maulana, Daeng; Dirhamsyah, M; Setyawati, Dina
JURNAL HUTAN LESTARI Vol 3, No 2 (2015): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v3i2.10369

Abstract

This research is aimed to know the effect size of the particle and concentration adhesives of urea  formaldehyde to physical and mechanical properties particle board.Particle board made from the stem of Pandan Mengkuang (Pandanus atrocarpus Griff) from Ambawang Subdistrict, the Regency of Kubu Raya. The size of the particle, which consists of the coarse particle size 4 - 6 meshes, the soft particle size 8 - 10 meshes. The level of urea formaldehyde used the were 10%, 12% and 14% from the basic material mass.Particle board is made with size 30 cm x 30 cm x 1 cm with target density of 0,6 g/cm3at a specificpressure of25 kg/cm2 and temperature of 150º C for 10 minutes. Evaluation of the physical properties and mechanical properties was conducted according to JIS A 5908-2003.The results of this research showed the average value based the density is around 0,58 g/cm3 – 0,66 g/cm3, the moisture content is around 7,79% - 9,72%, thickness swelling is around14,72% - 21,59%, water absorption is around 74,40% - 99,65%,modulus of elasticity is around 5122,05 kg/cm2 – 10995,76 kg/cm2, modulus of repture is around 109,22 kg/cm2 – 194,15 kg/cm2,the internal bonding strengthis around 2,74 kg/cm2 – 3,59 kg/cm2, and the screws holding strength is around 52,06 kg – 77,09 kg. The best treatment for the physical and mechanical of particle board made from Pandan Mengkuang (Pandanus atrocarpus Griff) stem is the size of the coarse particle and urea  formaldehyde concentration 14%. Key words : Pandan mengkuang, particleboard,urea formaldehyde
SIFAT FISIK DAN MEKANIK PAPAN KOMPOSIT DARI BATANG SINGKONG DAN LIMBAH PLASTIK BERDASARKAN PELAPISAN DAN KOMPOSISI BAHAN BAKU Rita, Ronnika; Setyawati, Dina; Usman, Fadillah H.
JURNAL HUTAN LESTARI Vol 3, No 2 (2015): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v3i2.10877

Abstract

The study aims to determine the influence of coating and composition of raw materials to physical and mechanical properties of composite board from singkong trunk and plastic waste and to know the best treatment. Composite board size was 30 cm x 30 cm x 1 cm. The plastic waste function as an adhesive and mix in three layer of composite board. The face and back layer consist of 15% and  in the core consist of 70% with a target density of 0,7 g/cm3. This study used factorial experiment in a random design complete with 2 factors. The factor consist of factor coating which consists of 2 subfaktor (coating with veneer and without veneer) and factor composition (singkong trunk: plastic waste) which consists of 3 subfaktor 40:60, 50:50, and 60:40. The pressure was done with hot press temperature 180 ºC for 10 minute with pessure ± 25 kg/cm². Evaluation the quality of physical and mechanical properties to standard JIS A 5908-2003. The result of research showed that all the composite board can fulfill the standard JIS A 5908-2003, except on MOE value of the composite  board of coating with without veneer. The best value of composite board was achieved on composition 60% singkong  trunk and 40% plastic waste with, coating veneer. Keywords:       Coating, composite board, composition, physical and mechanical properties, plastic polypropylene, singkong trunk
KEAWETAN PAPAN PARTIKEL BATANG KELAPA SAWIT DARI PROSES PERENDAMAN PARTIKEL YANG BERBEDA TERHADAP RAYAP TANAH COPTOTERMES CURVIGNATHUS HOLMGREN Saman, Abdus; Diba, Farah; Setyawati, Dina; haida, Nur
JURNAL HUTAN LESTARI Vol 4, No 1 (2016): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v4i1.14746

Abstract

Oil palm trunk became a huge waste when the oil palm reached twenty fifth years old. This unproductive oil palm will replant with a new oil palm tree. Meanwhile the trunk was a big source of cellulose which can be used as particleboard. Research aimed to evaluate the durability of particleboard made from oil palm trunk against subterranean termites Coptotermes curvignathus Holmgren. This research was conducted in Laboratory of Wood Technology in Forestry Faculty Tanjungpura University, Pontianak, West Kalimantan, Indonesia. The treatment of particle of oil palm trunk was dipping in hot water for two hours, dipping in cold water for seven hours and dipping in NaOH 5%for two hours.Each treatment was made in fifth replication. Durability test against subterranean termites was conducted with force feeding test. Sample was measured 2 cm x 2 cm x 1 cm and put in glass with fifty termites (45 workers and 5 soldiers) then keep in culture room for 21 days. The weight loss of particleboard sample and mortality of termites was count for measured the durability of particleboard. Result of research showed that the highest average value of weight loss of oil palm particleboard was on treatment particle dipping in cold water for seven hours, then particle dipping in hot water and NaOH5% (2.75%; 0.65% and 0.23% respectively). Mortality of termites reaches 100% on particleboard made from dipping in NaOH5%. It is concluded that the durability of oil palm particleboard made from dipping particle in NaOH was the highest than other treatment. Keywords:Coptotermes curvignathus, dipping, durability, oil palm trunk, particleboard
EFEKTIVITAS BAHAN PENGAWET KAYU ASAP CAIR KAYU PUTIH (Malaleuca cajuputi Powell) TERHADAP SERANGAN RAYAP TANAH (Coptotermes curvignathus Holmgren) Indrayani, Yuliati; Novita, Maria; Setyawati, Dina
JURNAL HUTAN LESTARI Vol 11, No 4 (2023): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v11i4.58204

Abstract

Wood is one of the necessities of human life, but it uses cannot be separated from wood-destroying organism’s attack. Subterranean termites are one of the wood-destroying organisms that cause high economic losses. One of the environmentally friendly ways to prevent subterranean termite attacks is the use of eucalyptus liquid smoke as a wood preservative. The aims of this research are to analize the effect of pyrolysis temperature and concentration of eucalyptus liquid smoke and determine the optimal pyrolysis temperature and concentration as a wood preservative against subterranean termites. Liquid smoke was made in various pyrolysis temperatures such as 350℃, 400℃, and 450℃ by pyrolysis for 120 minutes, and analyzed qualitatively using GCMS. The research was done for three weeks. Data were analysed using a factorial experimental method with a completely randomized pattern (CRD). The effectiveness testing of eucalyptus liquid smoke was carried out in various concentrations, namely 0%, 2%, 4%, 6%, 8% and 10% at each pyrolysis temperature. The chemical components of liquid smoke that are dominant and act as an anti-termite are acetic acid, phenol and their derivatives. Pyrolysis temperature of 450℃ with concentration of 10% is the optimal combination as an anti-termite with the highest termite mortality value of 98.1818% and the lowest weight loss of paper disc is 27.1516%. Keywords: eucalyptus, liquid smoke, subterranean termites, wood preservatives.AbstrakKayu merupakan salah satu kebutuhan hidup manusia namun penggunaannya tidak lepas dari serangan organisme perusak kayu. Rayap tanah merupakan salah satu organisme perusak kayu yang menyebabkan kerugiaan ekonomi cukup tinggi. Salah satu cara yang ramah lingkungan untuk pencegahan serangan rayap tanah adalah penggunaan asap cair kayu putih sebagai bahan pengawet kayu. Tujuan penelitian adalah untuk menganalisis pengaruh suhu pirolisis dan konsentrasi asap cair kayu putih serta menentukan suhu pirolisis dan konsentrasi optimal sebagai bahan pengawet kayu terhadap serangan rayap tanah. Asap cair dibuat dalam berbagai suhu pirolisis yaitu 350℃, 400℃, 450℃ dengan waktu 120 menit dan dianalisis secara kualitatif menggunakan GCMS. Penelitian dilakukan selama tiga minggu. Data dianalisis menggunakan metode percobaan faktorial dengan pola acak lengkap (RAL). Pengujian efektivitas asap cair kayu putih terhadap rayap tanah dilakukan dalam berbagai konsentrasi yaitu 0%, 2%, 4%, 6%, 8% dan 10% pada masing-masing suhu pirolisis. Senyawa komponen kimia asap cair yang dominan dan berperan sebagai anti rayap adalah asam asetat, fenol serta turunannya. Suhu pirolisis 450℃ dengan konsentrasi 10% merupakan kombinasi yang optimal sebagai anti rayap dengan nilai mortalitas rayap tertinggi sebesar 98,1818% dan kehilangan berat kertas saring terendah yaitu 27,1516%. Kata kunci: kayu putih, asap cair, rayap tanah, pengawet kayu.
SIFAT FISIK DAN MEKANIK PAPAN ORIENTED STRAND BOARD (OSB) DARI LIMBAH FINIR KAYU LAPIS BERDASARKAN WAKTU KEMPA DAN KONSENTRASI FENOL FORMALDEHIDA Yani, Ahmad; Hidayat, Hidayat; Setyawati, Dina
JURNAL HUTAN LESTARI Vol 11, No 3 (2023): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v11i3.69146

Abstract

The waste resulting from the production of the plywood industry is enormous, and until now, it has not been utilized optimally. Reduce the amount of waste, which can be done by processing finir waste into an Oriented Strand Board (OSB), which can reduce the fulfillment of raw wood materials. This study aimed to determine the best compression time and concentration of phenol formaldehyde in manufacturing Oriented Strand Board (OSB) from waste plywood. The research was conducted at the Wood Processing Laboratory and Wood Workshop at the Faculty of Forestry and the PT. Duta Pertiwi Nusantara for 3 months. The experimental method used a completely randomized design with treatment factors in compression time (8 minutes, 10 minutes, and 12 minutes), and phenol formaldehyde adhesive concentration (9% and 10%), three replicates were run for each. The treatment results show OSB with 12 minutes of compression time and 10% phenol formaldehyde concentration as the OSB with the best quality and the most parameters complied with JIS A 5908 (2003).Keywords: concentration of phenol formaldehyde, finir waste, oriented strand board, pressing timeAbstrakLimbah hasil dari produksi industri kayu lapis sangat besar dan sampai saat ini belum dimanfaatkan secara maksimal. Untuk menekan besarnya limbah tersebut dapat dilakukan dengan mengolah limbah finir menjadi papan untai atau Oriented Strand Board (OSB) yang dapat mengurangi besarnya limbah. Tujuan penelitian ini adalah untuk memperoleh waktu kempa dan konsentrasi fenol formaldehida terbaik dalam pembuatan papan Oriented Strand Board (OSB) dari limbah finir kayu lapis. Penelitian dilaksanakan di Laboratorium Pengolahan Kayu dan Wood Workshop Fakultas Kehutanan serta Laboratorium PT. Duta Pertiwi Nusantara selama 3 bulan. Metode penelitin menggunakan rancangan acak lengkap dengan perlakuan waktu kempa (8 menit, 10 menit, dan 12 menit), dan konsentrasi perekat fenol formaldehida (9 % dan 10 %). Yang dilakukan dalam 3 ulangan. Hasil  penelitian menunjukkan OSB dengan perlakuan waktu kempa 12 menit dan konsentrasi fenol formaldehida 10% sebagai OSB dengan kualitas terbaik dan memenuhi JIS A 5908 (2003). Kata kunci: konsentrasi fenol formaldehida, limbah finir, oriented strand board, waktu kempa
SIFAT FISIK MEKANIK PAPAN SERAT AMPAS TEBU BERDASARKAN JUMLAH LAPISAN DAN RASIO ASAM SITRAT-SUKROSA Lestari, Yayuk; Setyawati, Dina; Nurhaida, Nurhaida
JURNAL HUTAN LESTARI Vol 12, No 2 (2024): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v12i2.72649

Abstract

Sugarcane bagasse fiber waste has not been utilized optimally. One of the uses of bagasse fiber waste is to make the waste into fiberboard. The research aim to evaluate the effect of the number of layers and the citric acid-sucrose ratio on the physical and mechanical properties of fiberboard and the best fiberboard that meets JIS A 5908:2003 Type 8 standards. The research was carried out in the wood processing laboratory of the Faculty of Forestry for + 4 months starting from the preparation of raw materials to testing and data processing. The experimental method used a factorial Completely Randomized Design (CRD) with two factors, namely the ratio of citric acid-sucrose (0/100, 25/75, 50/50, 75/25, 100/0) and the number of layers (one layer, three layers and five layers), each with three replicates. Fiberboard is made with dimensions of 30cm x 30cm x 1cm with a target density of 0,7 gr/cm3. The fiberboard is hot pressed at a temperature of 1800C for 10 minutes with a pressure of 35 kg/cm2. Based on research results, the ratio of citric acid to sucrose, the number of layers, and the interaction between the two have a significant effect on the physical and mechanical properties of fiberboard. The best fiberboard is found in the citric acid-sucrose ratio treatment of 75/25 with a single layer of board.Keywords: citric acid-sucrose, bagasse, fiberboard, number of layersAbstrakLimbah serat ampas tebu belum dimanfaatkan secara optimal. Salah satu pemanfaatan limbah serat ampas tebu adalah menjadikan limbah tersebut sebagai papan serat. Tujuan penelitian adalah mengevaluasi pengaruh jumlah lapisan dan rasio asam sitrat-sukrosa terhadap sifat fisik dan mekanik papan serat serta papan serat terbaik yang memenuhi standar JIS A 5908:2003 Type 8. Penelitian dilaksanakan di Laboratorium pengolahan kayu Fakultas Kehutanan selama + 4 bulan mulai dari persiapan bahan baku sampai pengujian dan pengolahan data. Metode percobaan menggunakan faktorial Rancangan Acak Lengkap (RAL) dengan dua faktor yaitu rasio asam sitrat-sukrosa (0/100, 25/75, 50/50, 75/25, 100/0) dan jumlah lapisan (satu lapis, tiga lapis dan lima lapis), masing-masing dengan tiga ulangan. Papan serat dibuat dengan ukuran 30cm x 30cm x 1cm dengan target kerapatan 0,7 gr/cm3. Papan serat dikempa panas pada suhu 1800C selama 10 menit dengan tekanan 35 kg/cm2. Berdasarkan hasil penelitian bahwa rasio asam sitrat-sukrosa, jumlah lapisan dan interaksi antara keduanya berpengaruh nyata terhadap sifat fisik dan mekanik papan serat. Papan serat terbaik terdapat pada perlakuan rasio asam sitrat-sukrosa 75/25 dengan jumlah lapisan satu lapis.Kata kunci: asam sitrat-sukrosa, ampas tebu, papan serat, jumlah lapisan
PEMANFAATAN ROTAN SEBAGAI BAHAN BAKU KERAJINAN OLEH MASYARAKAT DESA BENUA KRIO, KABUPATEN KETAPANG Setyawati, Dina; MS, Albertus; Sisillia, Lolyta
JURNAL HUTAN LESTARI Vol 12, No 2 (2024): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v12i2.49615

Abstract

The use of rattan as a raw material for handicrafts has been a long-standing tradition in Benua Krio, Hulu Sungai District, Ketapang Regency. This study aims to document the various species of rattan utilized as raw materials for handicrafts, the products, and describe their processing techniques. The respondents in this study were rattan artisans from Benua Krio Village, totaling 30 participants. The selection of respondents was carried out using the snowball sampling method. Data analysis revealed that 10 species of rattan are utilized, classified into three genera: Calamus, Korthalsia, and Daemonorops.The Calamus genus includes Calamus caesius Blume, C. manan Miq, C. optimus Beccari, C. inops Becc, and C. trachycoleus. The Korthalsia genus comprises Korthalsia echinometra Beccari and K. rigida Blum). The Daemonorops genus includes Daemonorops geniculata (Griff) Mart, D. didymophylla Bec), and D. melanochaetes B). The rattan processing follows several stages: harvesting, initial cleaning, drying and preservation, secondary cleaning, and product manufacturing The study identified 15 types of handicrafts produced in Benua Krio Village, including timpak, ragak, bakul, piring, kampik, ronjong, entaban, tengkalang, takin, takin dara, capan, ayak padi, klasah/tikar, pemangkong tilam, and tangguk.Keywords: Benua Krio Village, Handicraft, Rattan, Utilization,AbstrakPemanfaatan rotan sebagai bahan baku kerajinan di Desa Benua Krio sudah menjadi tradisi masyarakat. di Desa Benua Krio, Kecamatan Hulu Sungai, Kabupaten Ketapang. Penelitian ini bertujuan untuk mendokumentasikan berbagai jenis rotan yang digunakan sebagai bahan baku kerajinan, produk yang dihasilkan, serta mendeskripsikan teknik pengolahannya. Responden dalam penelitian ini adalah pengrajin rotan dari Desa Benua Krio, dengan total 30 peserta. Pemilihan responden dilakukan menggunakan metode snowball sampling. Hasil penelitian mendapatkan terdapat 10 jenis rotan yang dimanfaatkan, yang diklasifikasikan ke dalam tiga genus, yaitu Calamus, Korthalsia, dan Daemonorops. Genus Calamus mencakup Calamus caesius Blume, C. manan Miq), C. optimus Beccari), C. inops Becc, dan C. trachycoleus. Genus Korthalsia terdiri dari Korthalsia echinometra Beccari dan K. rigida Blume. Genus Daemonorops mencakup Daemonorops geniculata (Griff) Mart, D. didymophylla Becc, dan D. melanochaetes BI. Proses pengolahan rotan dilakukan melalui beberapa tahap, yaitu pemanenan, pembersihan tahap pertama, pengeringan dan pengawetan, pembersihan tahap kedua, serta pembuatan produk. Penelitian ini mengidentifikasi 15 jenis kerajinan yang diproduksi di Desa Benua Krio, antara lain timpak, ragak, bakul, piring, kampik, ronjong, entaban, tengkalang, takin, takin dara, capan, ayak padi, klasah/tikar, pemangkong tilam, dan tangguk.Kata Kunci: Desa Benua Krio, Kerajinan, Rotan, Pemanfaatan
BIOAKTIVITAS EKSTRAK BATANG KIRINYUH (Eupatorium odoratum Linn) TERHADAP RAYAP TANAH (Coptotermes curvignathus Holmgren) Diba, Farah; Nur Sidik, Muhammad; Setyawati, Dina
JURNAL HUTAN LESTARI Vol 12, No 4 (2024): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v12i4.45543

Abstract

Termite infestations in buildings and plantations cause economic losses. Kirinyuh (Eupatorium odoratum) has the potential to be an insecticide for controlling subterranean termites (Coptotermes curvignathus). The objective of this study was to test the effectiveness of E. odoratum stem extract in inhibiting the activity of C. curvignathus termites and to analyze the optimal concentration of the extract for inhibition termites attack, with parameters termite mortality and test paper weight loss. The study employed a Completely Randomized Design (CRD) with a single treatment variable: extract concentration. E. odoratum stems weighing 150 grams were macerated with 96% ethanol at a 1:8 ratio, then five extract concentrations were prepared: 1%, 2%, 3%, 4%, and 5%. Filter paper was soaked in the extract solution and used as a food substrate for termites. Testing was conducted over a 21-day period, using 50 termites (45 worker termites and 5 soldier termites). The results showed that the yield of E. odoratum stem extract was 7.37%. The average termite mortality ranged from 14.67% to 75.33%, while the average test paper weight loss ranged from 39.88% to 89.48%. The calculated LD50 value at the 3% concentration was 1.733 × 10⁻² mg/kg body weight. Keywords : antitermites, biotermiticide, Coptotermes curvignathus, Eupatorium odoratum, lethal dose Abstrak Serangan rayap pada bangunan dan perkebunan menimbulkan kerugian ekonomi. Kirinyuh (Eupatorium odoratum) berpotensi sebagai insektisida pengendali rayap tanah (Coptotermes curvignathus). Tujuan dari penelitian adalah menguji ekstrak batang kirinyuh E. odoratum dalam menghambat aktivitas rayap C. curvignathus dan menganalisis konsentrasi ekstrak yang paling optimal dalam membunuh rayap dengan parameter kematian rayap dan kehilangan berat kertas uji. Penelitian menggunakan Racangan Acak Lengkap (RAL) dengan satu perlakuan yaitu konsentrasi ekstrak. Batang E. odoratum dengan berat 150 gr dimaserasi dengan etanol 96% dengan perbandingan 1:8, kemudian ekstrak dibuat menjadi lima konsentrasi yaitu 1%, 2%, 3%, 4% dan 5%. Kertas saring dicelupkan ke dalam larutan ekstrak dan digunakan untuk substrat makanan rayap. Pengujian dilakukan selama 21 hari dengan jumlah rayap sebanyak 50 ekor rayap (45 rayap pekerja dan 5 rayap prajurit). Hasil penelitian menunjukkan rendemen ekstrak batang E. odoratum sebanyak 7,37%. Nilai rerata kematian rayap sebesar 14.67% - 75.33%.dan rerata kehilangan berat kertas sebesar 39.88% - 89.48%. Hasil perhitungan nilai LD50 pada konsentrasi 3% dengan satuan dosis 1,733 x 10-2 mg/KgBB, Kata Kunci : Anti rayap, biotermitisda, Coptotermes curvignathus, Eupatorium odoratum, lethal dosis
Co-Authors . Aminah ahmad yani Aloysius Kahariayadi, Aloysius andi, adi ARIFIN, DEDE Asep Hermawan Ayong Hiendro Bagaskara, Julio D. Dhuha Lamanda, D. Dhuha Daeng Maulana, Daeng Dir hamsyah Dirhamsyah, Muhammad Emi Roslinda Endriani, Beti Fadillah H. Usman Farah Diba Farahdiba, . Gusti Hardiansyah Handayani, Geni Saputri Hasan Ashari Oramahi Hendra Prawira Hidayat Hidayat Lastri Anita Gultom Lestari, Yayuk Lestari,, Maya Lolyta Sisillia M. Dirhamsyah M. Irfani Hendri MS, Albertus Novita, Maria Nur Haida Nur Sidik, Muhammad Nurhaida Nurhaida Nurhaida, . Ovythia Anggrainie Ronnika Rita, Ronnika Ruqiah Ganda Putri Panjaitan Saman, Abdus Sasmita, Dayang Fatimah Su narti Suhaimi, . Sumimi, . Trisna Wati, Trisna Umam, Tajul Utomo, Kiki Prio Wahdina, Wahdina Wesly, Yonatan Wiwit, . Yeni Mariani Zul fian, Zul