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Effectiveness of Annona muricata Leaf Extract as a Biopesticide Against Strepsicrates sp. in Eucalyptus pellita Seedlings Zahra’ Syafi’ah; Muhammad Mardhiansyah; Pebriandi Pebriandi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i4.7267

Abstract

Background: Industrial forest plantations, particularly Eucalyptus pellita, are widely cultivated for pulp and paper production. However, nurseries of E. pellita, including those in the R&D facilities of PT Arara Abadi, are frequently infested by pests such as Strepsicrates sp. Synthetic pesticides are commonly applied to manage these infestations, although their use may pose risks to the environment. As an alternative, botanical pesticides derived from Annona muricata leaf extract have gained attention. Therefore, this study aimed to evaluate the effectiveness of A. muricata leaf extract in controlling Strepsicrates sp. and to determine its optimal concentration for application in E. pellita nurseries. Methodology: The experiment employed a completely randomized design (CRD) consisting of four treatments with five replicates. Data were analyzed using Duncan’s New Multiple Range Test (DNMRT) at a 5% significance level. The treatments consisted of concentrations of 10 g/L, 20 g/L, 30 g/L, and 40 g/L. Observed parameters included room temperature, relative humidity, time to initial mortality, time to 50% mortality, daily mortality rate, and total mortality. Findings: A. muricata leaf extract was effective in controlling Strepsicrates sp. on E. pellita. The results indicated that the optimal concentration was 40 g/L, resulting in the shortest initial mortality time of 5.2 hours, a median lethal time (LT₅₀) of 22.58 hours, and  a total mortality rate of 100%. Contribution: The findings of this study indicate that A. muricata leaf extract at a concentration of 40 g/L has strong potential for application as an environmentally friendly, effective, and sustainable botanical pesticide, supporting integrated pest management in E. pellita nurseries and reducing reliance on synthetic chemicals
Pengenalan Penggunaan Chainsaw sebagai Alat Semi Mekanis Pada Kegiatan Pemanenan Kayu Bagi Siswa SMK Kehutanan Negeri Pekanbaru Ika Lestari; Anesha Allasselcida; Dinda Tri Agustina; Lefdi Agung Nugraha; Hanifah Ikhsani; Agung Kartika Putra; Maryani Maryani; Viny Volcherina Darlis; Pebriandi Pebriandi; Ewi Irfani
Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2026): Juni 2026
Publisher : Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/japamas.v5i1.428

Abstract

Pemanenan kayu merupakan proses penting dalam pengelolaan hutan yang melibatkan penebangan pohon dengan berbagai alat, termasuk chainsaw sebagai alat semi mekanis. Chainsaw memerlukan keterampilan khusus agar penggunaanya efektif dan aman. Kegiatan ini bertujuan mengenalkan penggunaan chainsaw kepada siswa SMK Kehutanan Negeri Pekanbaru dan meningkatkan pengetahuan dan wawasan siswa terkait chainsaw baik penggunaanya, komponen-komponen alat dan aspek K3. Metode yang digunakan adalah sosialisasi dan partisipatif dengan pendekatan kualitatif melalui pemberian materi, diskusi, pengenalan komponen chainsaw dan video simulasi penggunaan alat, serta pendekatan kuantitatif dengan pre-test dan post-test untuk mengukur peningkatan pengetahuan siswa. Responden dipilih secara purposive sampling dari siswa SMK Kehutanan Negeri Pekanbaru sebanyak 30 siswa yang memili minat  pada mata pelajaran pemanenan hasil hutan. Hasil menunjukkan peningkatan pemahaman siswa setelah pelatihan, dengan rata-rata skor pre-test 66 meningkat menjadi 91 pada post-test, yaitu peningkatan rata-rata 24 poin. Siswa menunjukkan antusiasme tinggi pada sesi teori, pengenalan komponen, dan simulasi video. Kegiatan ini juga menekankan pentingnya penggunaan alat pelindung diri (APD) untuk keselamatan kerja. Kesimpulan dari kegiatan ini adalah pengenalan penggunaan chainsaw efektif meningkatkan wawasan dan pengetahuan siswa. Pendekatan pembelajaran yang menggabungkan teori dan simulasi praktik mendukung pemahaman yang lebih baik dan memperkuat kesiapan siswa dalam menghadapi dunia kerja dibidang kehutanan.
Nilai Ekonomi Pemanfaatan Hasil Hutan Bukan Kayu Di Taman Nasional Tesso Nilo Oleh Masyarakat Desa Lubuk Kembang Bunga Kabupaten Pelalawan, Provinsi Riau Pebriandi; Lefdi Agung Nugraha; Defri Yoza; Yossi Oktorini; Muhammad Mardhiansyah; Ewi Irfani; Sonia Somadona; Evi Sribudiani; Feny Oktaningsih; Ika Lestari Hutasuhut
Jurnal Ilmu Ilmu Kehutanan Vol. 10 No. 1 (2026)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.10.1.%p

Abstract

Tesso Nilo National Park (TNNP) is one of the national parks in the province of Riau. TNNP is also one of the national parks that has great potential such as protected animals both Sumatran Elephants, Sumatran Tigers, HHK, and NTFPs. The existence of the forest is very important for the survival of the people living around the forest as well as the animals living in it. The diversity of types of forest products, especially NTFPs in the TNNP, are used by the people around the National Park, especially the people of Lubuk Kembang Bunga Village The use of NTFPs from national parks for both domestic needs and economic needs has different types and types, NTFPs used by the community, such as rattan, resin, honey, pandan and medicine from forest areas.
Potensi Simpanan Karbon di Hutan Kota Pulau Bungin, Teluk Kuantan, Kabupaten Kuantan Singingi, Provinsi Riau Ewi Irfani; Rini Dwi Putri; Pebriandi Pebriandi; Sonia Somadona
MAKILA Vol 20 No 1 (2026): Makila : Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/makila.v20i1.23734

Abstract

Bungin Island City Forest located in Teluk Kuantan, Kuantan Singingi Regency, Riau Province with an area of 3.7 ha is one of the Green Open Spaces (RTH) that has the potential to store carbon. This study aims to determine the carbon storage potential stored in vegetation and soil in the Bungin Island Urban Forest area. The research method involved making plots measuring 20 m x 100 m with a sampling intensity (IS) of 30%, using the systematic with random star method. Data collection included measurement of tree diameter (DBH), identification of plant species, wood specific gravity, and analysis of biomass and carbon storage from five constituent components, namely: (1) aboveground biomass (seedlings, understory, saplings, poles, and trees), (2) belowground biomass (roots), (3) necromass (dead trees), (4) litter, and (5) soil. Estimating carbon stocks using biomass data. Allometric equations were used to assess aboveground plant biomass. Data analysis for other carbon sources uses formulas according to national standards (SNI 7724: 2019). The results showed that the total carbon storage in Bungin Island Urban Forest was 155.32 tons/ha, consisting of aboveground carbon storage of 94.92 tons/ha (61.11%), subsurface carbon storage of 35.12 tons/ha (22.61%), litter carbon storage of 0.36 tons/ha (0.23%), necromass storage of 0.49 tons/ha (0.32%), and soil carbon storage of 24.43 tons/ha (15.73%).
Peningkatan Pengetahuan dan Keterampilan Mahasiswa Kehutanan Universitas Riau melalui Edukasi dan Simulasi Pemadaman Kebakaran Hutan dan Lahan di Manggala Agni Daops Pekanbaru Ika Lestari; Nur Suhada; Pebriandi Pebriandi; Viny Volcherina Darlis; Yossi Oktorini; Defri Yoza; Evi Sribudiani; Muhammad Mardiansyah; Nurul Qomar; Ewi Irfani
Aksi Kita: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 3 (2026): MEI-JUNI
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/0fh9zs20

Abstract

Kebakaran hutan dan lahan (karhutla) adalah bencana yang sering terjadi di Indonesia, khususnya di Provinsi Riau, yang memberikan dampak besar terhadap ekosistem, kesehatan, sosial, dan ekonomi masyarakat. Sebagai institusi akademik di bidang kehutanan, Universitas Riau berperan dalam meningkatkan kompetensi mahasiswa dalam pengendalian karhutla. Tujuan kegiatan ini adalah untuk meningkatkan pengetahuan dan keterampilan mahasiswa kehutanan Universitas Riau melalui edukasi dan simulasi pemadaman kebakaran yang diselenggarakan bekerja sama dengan Manggala Agni Daops Pekanbaru. Metode pelaksanaan meliputi tiga tahap: pemberian materi oleh praktisi Manggala Agni, pengenalan alat pemadam kebakaran manual dan mekanis, serta simulasi pemadaman api secara langsung. Evaluasi dilakukan dengan pre-test dan post-test untuk mengukur peningkatan kemampuan mahasiswa. Hasil evaluasi menunjukkan peningkatan skor rata-rata pengetahuan dan keterampilan sebesar 39,42 setelah kegiatan berlangsung, yang mengindikasikan efektivitas kegiatan dalam meningkatkan kesiapsiagaan dan kemampuan praktis mahasiswa. Kesimpulannya, kegiatan edukasi dan simulasi ini berhasil meningkatkan pengetahuan dan keterampilan mahasiswa dalam upaya mitigasi karhutla di Provinsi Riau.
Peningkatan Pengetahuan Masyarakat akan Fungsi Hutan untuk Mewujudkan Pengelolaan Hutan Lestari di Desa Kuala Tolam, Kabupaten Pelalawan, Provinsi Riau Ika Lestari; Maryani Maryani; Dinda Tri Agustina; Hanifah Ikhsani; Lefdi Agung Nugraha; Gandhiko Mohta; Anesha Allasselcida; Agung Kartika Putra; Erwanda Trio Bintan Sabri; Nurul Qomar; Pebriandi Pebriandi; Ewi Irfani
Unri Conference Series: Community Engagement Vol 7 (2025): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.7.236-245

Abstract

Kuala Tolam Village, Pelalawan Regency, Riau Province, is one of the regions that still possesses significant peatland forests, which are ecologically, socially, and economically important. However, pressures from plantation expansion, land conversion, and limited community knowledge about forest functions have made this area vulnerable to degradation. This community service activity aimed to enhance public knowledge of the importance of forests. The method employed was socialization through an educational, participatory, and interactive approach combined with small group discussions. The respondents in this activity were stakeholders involved in community deliberations with the Siak Pelalawan Landscape Program in the context of forming a collective commitment to maintain forest functions and areas. The results of this activity showed an increase in community knowledge about forest functions as measured by several aspects, namely forest definition, forest types, and forest functions. Community understanding of the definition of forests increased by 39%, knowledge of forest types around Kuala Tolam Village increased by 36%, and knowledge of forest functions increased by 30%. These findings indicate that the socialization and educational approaches applied were successful in raising public awareness of the importance of forests in supporting the community’s commitment to preserving forest functions and areas. Furthermore, the formation of such commitment, supported by enhanced knowledge and understanding, is expected to serve as a strong foundation for establishing a forest patrol and monitoring team in Kuala Tolam Village, Pelalawan Regency.
Health Analysis of Acacia (Acacia crassicarpa) Seedling in the Nursery of PT. Sekato Pratama Makmur in Bukit Batu District, Bengkalis Regency, Riau Province Dini Aulia R. Arsetia; Muhammad Mardhiansyah; Pebriandi Pebriandi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.6993

Abstract

Background: Acacia is a top priority plant in developing industrial forest plantations, especially in Sumatra, because it meets the requirements as raw material for the pulp and paper industry. PT. Sekato Pratama Makmur (SPM) is a company that cultivates this plant. Constraints often encountered in developing pulpwood plantations include pests, diseases, and seedlings that fail to adapt to the field. It is essential to analyze the health of acacia seedlings in the PT. SPM nursery, as a basis for pest and disease control and plant protection measures. This study aims to determine the intensity of pest and disease attacks and the health condition of acacia plants. Methodology: The scoring method used in this study was used to determine the attack score on acacia seedlings. Data from this study were analyzed descriptively and quantitatively using the formulas of survival rate, intensity of pest and disease attack, and percentage of health. Findings: The results showed that the percentage of pest and disease attack intensity was 1.90% in sowing 1, 6.16% in sowing 2, and 5.88% in sowing 3, with mild damage. The percentage of acacia plant health was 95.10% in sowing 1, 89.38% in sowing 2, and 89.20% in sowing 3. Damage to leaves included leaf curling, leaf holes, leaf yellowing, leaf spots, and blight. This indicates that the acacia seedlings in the nursery are in good condition. The low intensity and minor severity of pest and disease attacks demonstrate that the control measures implemented by PT. SPM are effective. Contribution: This research contributes to the development of effective pest control strategies by providing initial information on the health condition of acacia seedlings and supports the long-term success of field planting.
Growth Response of Toona sureni to Providing Goat Manure Compost on Planting Media ex Gold Mine Reci Sartika; M. Mardhiansyah; Pebriandi Pebriandi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i3.5859

Abstract

Mining activities affect the balance of the soil surface ecosystem, decreasing soil productivity which causes the chemical, biological, and physical properties of the soil to be disturbed, as well as environmental quality. The purpose of this study was to determine the effect and the best composition of a mixture of compost and former gold mine soil in the growth of suren seedlings. This study consisted of 4 (four) treatments and 5 (five) replications resulting in 20 experimental units. The treatment of compost fertilizer in this study can be seen as follows: D1 = no compost/control, D2 = 25% compost + 75% ex-gold mine soil, D3 = 50% compost + 50% ex-gold mine soil, D4 = 75% compost + 25% ex-gold mine soil. The observation parameters are the percentage of life, height increase, plant dry weight and seedling quality index (IMB). The results showed that the application of goat manure compost had a significant effect on the growth of suren seedlings. Treatment composition D4 (75% compost fertilizer + 25% gold mine waste soil) showed the best growth with 100% survival rate, 21, 27 cm height increase, 10.57 g plant dry weight and 0.99 IMB
RESPON PEMBERIAN KOMPOS SERBUK GERGAJI GAHARU SEBAGAI MEDIA TANAM TERHADAP PERTUMBUHAN SEMAI TREMBESI (Samanea saman) Muhammad Mardhiansyah; Jesi Meirani; Pebriandi; Viny Volcherina Darlis; Ewi Irfani; Lefdi Agung Nugraha
Journal of Tropical Silviculture Vol. 17 No. 01 (2026): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.17.01.10-21

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Salah satu vegetasi yang dijadikan sebagai alternatif dalam revegetasi lahan adalah anaman Trembesi (Samanea saman). Tumbuhan trembesi dapat tumbuh dengan baik jika diberikan unsur hara yang baik yaitu dengan campuran tanah dengan bahan orgnaik. Bahan organik yang berpotensi untuk perbaikan sifat fisik tanah adalah serbuk gergaji. Tujuan penelitian ini dilakukan untuk mengetahui pengaruh pemberian kompos serbuk gergaji gaharu sebagai media tanam dan untuk mengetahui komposisi optimal media tanam kompos serbuk gergaji gaharu terhadap pertumbuhan semai trembesi. Metode pengamatan ini dilakukan dengan memperhatikan persentase hidup, pertambahan tinggi semai dan diameter batang, nilai kekokohan, berat kering total, nisbah pucuk akar dan indeks mutu bibit. Data yang didapatkan kemudian dianalisis sidik ragam secara statistik menggunakan software SPSS versi 17.0. Kesimpulan dalam penelitian ini yaitu bahwa pemberian kompos serbuk gergaji gaharu berpengaruh terhadap persentase hidup, tinggi, diameter, dan kekokohan semai terhadap semai trembesi dan Komposisi optimal kompos serbuk gergaji gaharu terhadap pertumbuhan semai trembesi yaitu perlakuan P3 dimana rata-rata persentase hidup 60%, pertambahan tinggi 2,98 cm, pertambahan diameter 1,13 mm, nilai kekokohan semai 8,46, nisbah pucuk akar 1,56, dan indekd mutu bibit 1,86.
Analysis of the Physical and Chemical Properties of Soil in the Riau University Arboretum Pebriandi Pebriandi; Gilang Panca Marsanda; Zeki Desvita; Efilda Sari; Vinny Volcherina Darlis; Yossi Oktorini; Ewi Irfani; Lefdi Agung Nugraha; Hutami Indah Pertiwi
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.10805

Abstract

Soil is an important component of forest ecosystems because it acts as a provider of nutrients, a support for vegetation, and a regulator of biogeochemical cycles. Variations in the physical and chemical properties of soil are greatly influenced by vegetation cover and soil depth. This study aims to analyse the chemical properties of soil in two types of vegetation cover, namely dense and moderate cover, in the Riau University Arboretum, which was determined using the Normalised Difference Vegetation Index (NDVI) method. Soil samples were taken at three depths (0–10 cm, 10–20 cm, and 20–30 cm) to determine the vertical variation in soil chemical properties. The parameters analysed included pH, organic carbon (organic C), total nitrogen (total N), phosphorus (P₂O₅), and potassium (K₂O). The results showed that soil pH was in the acidic category, ranging from 4.43 to 5.21. Organic carbon content was higher in the surface layer than in the lower layers, with the highest value of 5.14% in medium cover. Total N content was low in all samples (0.11–0.25%), indicating a limitation of nitrogen as a factor restricting vegetation growth. The nutrient elements P₂O₅ and K₂O tended to be higher in the surface layer, especially in dense cover (P₂O₅ = 26.66 mg/100 g; K₂O = 24.56 mg/100 g). In general, dense cover was able to maintain nutrient availability better than medium cover, although medium cover had relatively higher organic C content on the surface. These findings confirm that vegetation cover plays an important role in maintaining soil quality, and the preservation of dense vegetation needs to be optimised to support soil fertility and the sustainable conservation function of the arboretum.
Co-Authors Aditia, Windy Sukma Ahmad Ahmad Ahmad Baiquni Ahmad Baiquni Rangkuti Akbar Alldhu Dilas Alfini Amelina Putri Ananda, Taufik Anesha Allasselcida Angga Pramana Angraini, Riris Anthoni Hamzah Aprianto, M. Ikhsan Arida Susilowati Iswanto Arya Arismaya Metananda Aufar, Wafid Muhammad Azizah, Wafiq Bakara, Jhon Pontas Cahyani, Putri Defri Yoza Dike Adelia Dinda Tri Agustina Dini Aulia R. Arsetia Efilda Sari Eka Hidyatulah Eka Indra Setiawan Erwanda Trio Bintan Sabri Esty Octiana Sari Evi Sribudiani Ewi Irfani Fadli, Zulkhoiri Fatriansyah, Aulia Feny Oktaningsih Fernando, Git Fifi Puspita Gandhiko Mohta Gilang Panca Marsanda Haliyani, Risda Hamido, Dhanu Hanifah Ikhsani harahap, ari azhari Harnuda, Muhammad Rafi Hasiolan Siahaan Hasnah, Nur Helni Anggraini HELNI ANGGRAINI Hutami Indah Pertiwi Idwar, Idwar Ika Lestari Ika Lestari Ika Lestari Hutasuhut Ika Lestari, Ika Ilham Muhammad Imelda Yunita Indahsari, Lili Nur Irman Tinjo Jesi Meirani Khikmanisa, Tiwi Kurniawan, M Andry Lestiawati M Andry Kurniawan M. Mardhiansyah Maras, Iqbal Mardiansyah, M. Mardiansyah Maryani Maryani Maryani Maryani Masruri, Niskan Walid Meki Herlon Meta Riana Akma Metananda, Arya Arismaya Mhd Akbar Sinabel Muhammad AlFajri Muhammad Buce Saleh Muhammad Mardhiansyah Muhammad Mardiansyah Muhammad Miftahul Roziqin Mukhamadun Mukhamadun ' Mukhamadun, Mukhamadun Mulyani, Putri Cahaya Nila Salsabila Nila Salsabila Niskan Walid Masruri Niskan Walid Masruri Nugraha, Lefdi Agung Nur Hasnah Nur Suhada Nur Suhada, Nur Nurhaliza Nurianti, Nurianti Nurul Qomar Oktorini, Yosi Omo Rusdiana Pajri, Islami Pradja Nur Isnaeini Pradja Nur Isnaeini Putra, Agung Kartika Putra, Ezza Islami Putri Cahyani Putri, Nur Aprilia Putriani, Chirin Ni’mah Rahayu, Rini Ramadhan, Farhan Rangkuti, Ahmad Baiquni Rangkuti, Rangkuti Reci Sartika Rezki Bela Putra Rezki Bela Putra Rini Dwi Putri Rizka, Darli Safitri, Maharani Sahab, Ahmad Sandi, Utami Nur Saputra, Alfahri Bayu Sepriza, Nurul Setiawan, Eka Indra Shobby, Afiyah Sholihin, Khoirul Sihombing, Venecia Margaretha Silitonga, Ester Marisi Somadona, Sonia Suhardianto, Suhardianto Syahputra, Yayan Aldy Syaiful Syifa Syarifa Nadira Syarifa Nadira Syukri, Zulhusni Teguh Imanto Vinny Volcherina Darlis Viny Volcerina Darlis Viny Volcherina Darlis Wahyu Tegar Pratama Wan Muhammad Yunus, Wan Muhammad Wati, Sulastri Wirda Aprilia Ningsih Wishnu Sukmantoro Yossi Oktorini Yulanda, Novia Oktari Yunandra Zahra’ Syafi’ah Zeki Desvita Zulfa, Khusyairi