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Keanekaragaman Coccinellidae Predator Pada Beberapa Ekosistem Perkebunan di Kabupaten Dharmasraya Efendi, Siska Chiko; Yaherwandi, Yaherwandi; Noferta, Ade; Muhammad, Aditya
Biosfer: Jurnal Tadris Biologi Vol 10 No 2 (2019): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v10i2.5558

Abstract

The objectives of this research were to study the species diversity and to determine the dominant species of lady bird beetle predators in high land plantation ecosystem in West Sumatera. The samples were taken by hand collection and sweep net. The data of species diversity were analyzed using Shannon-Wiener index, evenness of species were analyzed by Simpson index, and  dominant species using important value index. The results showed that there were 91 individuals predator found which consisted of 7 species. The highest  species diversity (1.74) and evenness (0.89) were found in Pulau Punjung. The lowest diversity and evennes (1,40) and (0,75) was found in Koto Besar. The highest  species importance value index was 1,00, that was Menochillus sexmaculatus.
DINAMIKA POPULASI DAN TINGKAT SERANGAN KUMBANG BADAK (Oryctes rhinoceros L.) PADA PERKEBUNAN KELAPA SAWIT BERBATASAN DENGAN AREAL REPLANTING: POPULATION DYNAMICS AND ATTACK RATES OF RHINOCEROS BEETLE (Oryctes rhinoceros) IN OIL PALM PLANTATIONS BORDERING REPLANTING AREAS Efendi, Siska; Sri Landes, Megi; Yaherwandi, Yaherwandi
AgriPeat Vol. 26 No. 02 (2025): JURNAL AGRIPEAT Vol. 26 No. 02 September 2025
Publisher : Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/agp.v26i02.20554

Abstract

Oryctes rhinoceros L (Coleoptera: Scarabidae) merupakan salah satu hama penting pada tanaman kelapa sawit. Hama ini dapat menurunkan produksi tandan buah segar (TBS) pada tahun pertama menghasilkan hingga 69%, bahkan menyebabkan tanaman muda mati mencapai 25%. Tujuan dari penelitian ini adalah mempelajari kelimpahan populasi dan tingkat serangan O. rhinoceros pada perkebunan kelapa sawit berbatasan dengan areal replanting. Penelitian ini telah dilakukan di areal replanting perkebunan kelapa sawit milik PT. Sumber Andalas Kencana (SAK) Muaro Timpeh yang terdapat di Nagari Padang Laweh, Kecamatan Timpeh, Kabupaten Dhamasraya dari pada bulan Februari sampai dengan April 2020. Pada lokasi yang sudah ditentukan akan dipasang ferotrap sebanyak empat unit dengan jarak secara berurutan yakni 100, 400, 700, dan 1000 m dari areal replanting. Pemasangan ferotrap pada lahan kelapa sawit menggunakan feromon agregat yang mampu menarik kumbang jantan maupun betina. Ferotrap dipasang dengan cara digantung pada tiang dengan ketinggian 2.5 m. Pada masing-masing jarak digunakan lahan seluas 1 hektar dan dipasang sebanyak 1 ferotrap pada jalur produksi, hal ini bertujuan untuk menarik imago O. rhinoceros keluar dari areal perkebunan kelapa sawit. Hasil pengamatan menunjukkan terdapat perbedaan populasi O. rhinoceros pada beberapa jarak dari lokasi replanting. Dimana kelimpahan tertinggi terdapat pada jarak 700 m dari lokasi replanting dan kelimpahan paling rendah terdapat pada jarak 1000 m. Nilai rerataan populasi O. rhinoceros tertinggi pada skala jarak 700 m adalah 10.4 imago/ferotrap/bulan sedangkan nilai rata – rata terendah yaitu pada skala jarak 1000 adalah 7.3 imago/ferotrap/bulan. Pada jarak 100 m, 400 m, dan 700 m, intensitas serangan yang didapatkan yaitu 60%. Sedangkan pada jarak 1000 m, intensitas serangan yang didapatkan adalah 55%. Jadi tingkat populasi dan intensitas serangan O. rhinoceros di perkebunan kelapa sawit berbatasan dengan areal replanting tertinggi pada jarak 700 m dan paling rendah pada jarak 1000 m.
ROADMAP PENGEMBANGAN KOPI DI KAB. SOLOK SELATAN Yulistriani, Yulistriani; Yaherwandi, Yaherwandi; Paloma, Cindy
Jurnal AGRISEP JURNAL AGRISEP VOL 18 NO 02 2019 (SEPTEMBER)
Publisher : Badan Penerbitan Fakultas Pertanian, Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.375 KB) | DOI: 10.31186/jagrisep.18.2.279-288

Abstract

Coffee is an important commodity as a source of foreign exchange and regional income. Solok Selatan district the second largest coffee producer after Solok district in West Sumatra. But the potential for coffee development in Solok Selatan district  has not been clearly mapped before. Therefore this study aims is to analyze the potential for coffee development and construct a roadmap for coffee development in Solok Selatan district. This study uses primary and secondary data. For the first purpose, an in-depth interviews were conducted using the purposive sampling method and FGD (Focus Group Discussion) with coffee stakeholders, such as the coffee traders, farmers, agriculture counselor, the government and NGOs (Non-Governmental Organizations). The data, which is a results of interviews and FGDs are grouped into internal and external factors and then analyzed using the SWOT (Strengths-weaknesses-opportunities-threats) analysis to answer the second goal. The analysis results show that the Solok selatan district coffee commodity has potential to be developed because it have a unique flavor of lemon and casiavera. It is necessary to do several stages to develop of Solok Selatan coffee, namely product diversifications, build a coffee center outlets, and design an attractive coffee tourism areas. Thus, the existing potential is expected to develop optimally and Solok Selatan district can be known as one of the “coffee village” in West Sumatra.
Study of yellow leaf virus disease on eggplant (Solanum melongena L.) in West Sumatra Najmi, Lailatun; Sari, Silvia Permata; Yaherwandi, Yaherwandi
Agrovigor Vol 17, No 1 (2024)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v17i1.24965

Abstract

Yellow leaf virus disease, accompanied by vector insect attacks, was the leading cause of the current decline in eggplant production. Yellow leaf virus disease spreads more quickly due to the influence of insect vectors. The research aims to determine the type of insect vector that spreads yellow leaf virus disease and the incidence and severity of yellow leaf virus disease on eggplants in West Sumatra. This research method uses a survey method for five months in 2023. The sample was taken diagonally with five observation points. At each point, five plant samples were taken randomly. Observations were carried out three times at four locations representing the centers of eggplant production areas in West Sumatra, namely in Kuranji District, Pauh District, Batang Anai District, and Sitoga District. Five different vector insect species were discovered, along with their corresponding population sizes, according to the observations: Bemisia tabaci (5846 individuals), Amrasca sp. (1199 individuals), Thrips sp. (176 individuals), Paracoccus sp. (43 individuals), and Aphids gosypii (34 individuals). The incidence of the disease reached 90% with the severity of the disease being 42.45% in Sitoga District. The highest disease severity was 43.94% in Kuranji District, with an incidence of the disease of 70%. This research helps implement strategies to control yellow leaf virus disease by determining the threshold for the influence of the number of vector insect populations in increasing the incidence and severity of yellow leaf virus disease in eggplants.
Pengaruh empat isolat Bacillus spp. untuk pertumbuhan tanaman padi dan peningkatan ketahanan terhadap serangan kepinding tanah (Scotinophara coarctata Fabricius.) Wibowo, Ilham; Yanti, Yulmira; Hamid, Hasmiandy; Yaherwandi, Yaherwandi
Jurnal AGRO Vol. 11 No. 1 (2024)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/34106

Abstract

Rice black bug (Scotinophara coarctata Fabricius) is an important pest of rice plants. An alternative control method involves utilizing biological agents from the genus Bacillus. The research aims to identify the effective Bacillus spp. isolates in enhancing the growth and resistance of rice plants against rice bug infestations. The experimental study employed a Completely Randomized Design (CRD) with five treatments: (1) B. cereus strain MRDKBTE 1.3, (2) B. subtilis strain MRTDUMBE 3.2.1, (3) B. cereus strain MRPLUMBE 1.3, (4) B. mycoides strain MRSNUMBE 2.2, and (5) Control, each with five replications. The results showed that B. cereus strain MRPLUMBE 1.3 increased plant height by 135.27 cm, and the number of tillers by 23.85, with fresh and dry weights of 0.8 grams and 0.09 grams, respectively. Furthermore, B. mycoides strain MRSNUMBE 2.2 reduced the number of eggs by 30.60 ± 2.70 eggs, with a hatching percentage of 74.46%, and an infestation intensity of 11.18%. Kepinding Tanah (Scotinophara coarctata Fabricius) merupakan hama penting tanaman padi. Alternatif pengendalian yang dapat dilakukan dengan pemanfaatan agens hayati dari genus Bacillus. Tujuan penelitian untuk mengidentifikasi isolat Bacillus spp. yang efektif dalam meningkatkan pertumbuhan dan ketahanan tanaman padi terhadap serangan kepinding tanah. Penelitian secara eksperimen menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan yaitu : (1) B. cereus strain MRDKBTE 1.3, (2) B. subtilis strain MRTDUMBE 3.2.1, (3) B. cereus strain MRPLUMBE 1.3, (4) B. mycoides strain MRSNUMBE 2.2, dan (5) Kontrol dengan masing masing 5 ulangan. Hasil penelitian yang diperoleh B. cereus strain MRPLUMBE 1.3 meningkatkan pertumbuhan tanaman 135,27 cm, jumlah anakan 23,85 anakan, serta berat segar dan kering masing-masing sebesar 0,8 gram dan 0,09 gram. Selanjutnya, B. mycoides strain MRSNUMBE 2.2, dapat menurunkan jumlah telur 30,60 ± 2,70 telur, presentase telur yang menetas 74,46%, dengan intensitas serangan sebesar 11,18%.
Keanekaragaman Hymenoptera Parasitoid Pada Perkebunan Kelapa Sawit (Elais Guineensis Jacq.) Yang Berbatasan Dengan Hutan Sekunder Nofri, Afrizal; Yusniwati; Yaherwandi
Jurnal Riset Perkebunan Vol. 1 No. 1 (2020): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.1.1.1-12.2020

Abstract

Secondary forest is primary forest that managed for forest exploitation purposes, so there are many oil palm plantations that are directly adjacent to secondary forest. Hymenopteran parasitoid is a group of the most important insect in the Hymenoptera order, because of its role as natural enemies or biological control agents against insect pests in agricultural ecosystems, including oil palm plantations. The objective of this study was to understand the diversity, species richness and abundance of Hymenopteran parasitoids in oil palm plantations which adjacent to secondary forests. The research was a survey, the purposive sampling method to determine the research location, while to determine the sample points used a systematic random sampling method. For insect collection, insect nets and yellow pan traps were used. The research was carried out in oil palm plantations located in Gunung Selasih and Siguntur Village. In each research unit there were 10 sample points with a distance of each sample point was 100 m along the transect line. The results showed that the total number of Hymenopteran parasitoids collected was 199 individuals belonging to 23 families and 94 morphospecies. Braconidae and Ichneumonidae were the Hymenopteran parasitoids family which its members were found many in the present study.
Aktivitas Air Rebusan Beberapa Kulit Jeruk (Citrus spp) untuk Menekan Pertumbuhan Colletotrichum gloeosporioides pada Tanaman Buah Naga secara In Vitro: Activity of Orange Peel Decoction (Citrus spp) to Suppress the Growth of Colletotrichum gloeosporioides on Dragon Fruit Plants In vitro Sulyanti, Eri; Yaherwandi, Yaherwandi; Ulindari, Restu Monika
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 2 (2019): December 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.2.56-64.2019

Abstract

Penelitian bertujuan untuk mendapatkan air rebusan kulit jeruk yang efektif dalam menekan pertumbuhan patogen Colletotrichum gloeosporioides penz. & Sacc. penyebab penyakit antraknosa pada tanaman buah naga (Hycoleceurus polyrhizus, L.) secara in vitro. Hasil penelitian diharapkan dapat membantu petani dalam mengendalikan penyakit antraknosa pada tanaman buah naga, serta mampu mempertahankan kualitas dan kuantitas dalam memproduksi buah naga. Penelitian ini dilaksanakan di laboratorium Fitopatologi Fakultas Pertanian Universitas Andalas dengan Rancangan Acak Lengkap, 6 perlakuan dan 5 ulangan. Perlakuannya adalah air rebusan dari beberapa kulit jenis jeruk dengan konsentrasi 5 g/100 ml, diantaranya: A = Tanpa perlakuan (kontrol); B = Kulit jeruk purut (Citrus histrix DC); C = Kulit jeruk manis (Citrus sinensis L.); D = Kulit jeruk nipis (Citrus aurantifolia); E = Kulit jeruk kasturi(Citrus madurensis Lour.) ; F = Pestisida berbahan aktif (tebukonazol, dengan dosis anjuran 2 g/100 ml, sebagai pembanding). Data yang diperoleh dianalisis secara sidik ragam (uji F) dan jika berbeda nyata dilanjutkan dengan (Least Significance Different) LSD pada taraf nyata 5%. Hasil penelitian menunjukkan bahwa dari perlakuan beberapa kulit jeruk dapat menekan pertumbuhan jamur C. gloeosporioides in vitro. Perlakuan air rebusan kulit jeruk manis adalah yang paling baik dengan efektivitas penekanan: luas koloni 76,86%, jumlah konidia 94,58%, dan daya perkecambahan konidia 38,18%. Namun efektivitasnya masih rendah jika dibandingkan dengan penggunaan pestisida berbahan aktif tebukonazol lebih efektif 100%.
The Potency of Refugia Plants in Increasing Insect Diversity of Rice Fields in Padang Pariaman, West Sumatra Nawir, Widya; Nelly, Novri; Yaherwandi, Yaherwandi
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 2 (2021): December 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.60-68.2021

Abstract

Some flowering plants like common zinnia (Zinnia elegans (Jacq) Kuntze), marigold (Tagetes erecta Linnaeus), and cockscomb flowers (Celosia sp.) have been used as refugia and conservation plants for predators and parasitoids but are still not yet optimal. Planting refugia plants can affect insect diversity and evenness index, affecting the stability and balance of the agroecosystem. The study aimed to determine the effect of common zinnia, cockscomb flowers, and marigold as refugia on insects’ diversity and evenness index and their potential as a medium for conservation of predators and parasitoids. The study was conducted in organic rice fields in Batang Anai Sub-district, Padang Pariaman District, West Sumatra, from May to July 2020. The Insect was collected from plots covering an area of ??48 m2 and identified in the Bioecology laboratory, Faculty of Agriculture, Universitas Andalas. Planting common zinnia, marigolds, and cockscomb flowers increased the index of diversity and evenness of insects around rice fields. The index of diversity and evenness of insects on cockscomb flowers (H = 2.90) was higher than that of common zinnia (H = 2.61) and marigold (H = 2.63). Cockscomb flowers have more potential as a medium for conserving predators and parasitoids.
Accuracy and Prediction of Hopperburn by Brown Planthopper (Nilaparvata Lugens Stal) with Sentinel-2 Images Gunawan, Rahmad; Reflinaldon, Reflinaldon; Yaherwandi, Yaherwandi
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 2 (2021): December 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.107-117.2021

Abstract

Forecasting of brown planthopper attack or BPH (Nilaparvata lugens Stal) using artificial intelligence and vegetation index of Sentinel-2 Satellite Imagery improves forecasting the incidence of hopperburn. This study aimed to determine the accuracy and correlation of the random forest classification of Sentinel-2 imagery to the incidence of hopperburn reported by Plant Pest Organisms Observer (PPOO) and determine the best method for predicting it. The study was done through observation and secondary data processing about the age of the plant, the incidence of hopperburn by BPH, interviews with farmers, and PPOO. The results showed that the hopperburn NDVI index ranged from 0.23 - 3.8. The random forest classification accuracy was high (Kappa Index = 0.82). The relationship between the hopperburn area from the PPOO report and the predicted area from Sentinel-2 images classified as (R2 = 0.53, R = 0.728) with the equation Y = -1.5 + 0.82 X. The correlation can be improved using spatial regression Geographically Weighted Regression (GWR4) with the best gaussian distance of 1.76 km (R2 = 0.6, R = 0.77). The best prediction for the NDVI stage of hopperburn attack time series with random forest (RMSE = 0.12819) was better than the prediction of the hopperburn attack time series with the exponential smoothing method from the PPOO report (RMSE 3.302184).
KOMUNITAS SEMUT (HYMENOPTERA: FORMICIDAE) PADA BEBERAPA TIPE PERKEBUNAN Efendi, Siska; Roza, Silvia; Yaherwandi, Yaherwandi
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 8 No. 1 (2024): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v8i1.3721

Abstract

Keanekaragaman semut di beberapa ekosistem perkebunan di Dharmasraya telah dilakukan pada bulan Juni sampai dengan September 2017. Bertujuan untuk mengetahui keanekaragaman semut dan peran semut yang terdapat pada ekosistem perkebunan kelapa sawit, karet dan kakao di Kabupaten Dharmasraya. Lokasi penelitian yakni Kecamatan Pulau Punjung, Sitiung, dan Koto Besar. Metode yang digunakan dalam penelitian yakni Sistematis Random Sampling (Rancangan Acak Terpilih). Pengambilan sampel menggunakan metode Qudran Protocol yaitu metode Soil And Leaf Litter Sieving, Pitfall trap, Bait Trap dan Hand Collecting. Identifikasi dilakukan pada Laboratorium Taksonomi Hewan, Jurusan Biologi, Fakultas MIPA, Universitas Andalas. Keanekaragaman dan Kemerataan semut pada beberapa tipe perkebunan di Kabupaten Dharmasraya tergolong sedang yakni (H’<1), dan (E<0,63). Ditemukan sebanyak 16 spesies semut dan spesies yang paling melimpah adalah Aneplolephis graciliphes dan Odontoponera denticulata.