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Rondonuwu, Frans Bernhard
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Immunology & microbiology Medicine & Pharmacology Social Sciences

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Incidence of Yellow Virus Disease in Chili Pepper Plants (Capsicum frutescens L.) in East Tombatu District, Southeast Minahasa Regency Pinaria, Arthur Gehart; Rondonuwu, Frans Bernhard; Satiman, Utari
Jurnal Agroekoteknologi Terapan (Applied Agroecotechnology Journal) Vol. 6 No. 2 (2025): ISSUE JULY-DECEMBER 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v6i2.65949

Abstract

The purpose of this study is to ascertain the incidence of diseases in the chili plant population in East Tombatu District, Southeast Minahasa Regency, caused by the yellow virus that affects plants in terms of area. The sample garden is at least half a hectare in size. Purposive sampling was used to choose the sample gardens, and the survey was only done once. Five subplots, one in the center of the garden and one close to each corner, were used for sampling in each chili garden (plot). The quantity of individual plants, or sample units, in each subplot. The number of samples represents 20% of the total number of plants. The findings revealed that the melompar atas garden had the highest prevalence of yellow viral disease in cayenne pepper (100%), followed by Mundung (180.91%), esandom (80%), Malam part 2 (8.80%), and jumping (141.88%). The incidence of this illness rose as the plant grew older after being planted. Further study ideas include inventorying B. tabachi hosts, inventorying gemini virus hosts, and applying natural farming to reduce cayenne pepper infections. Keywords: Yellow Virus, Incidence, Capsicum frutescens. Abstrak. Penelitian ini bertujuan untuk mengetahui keseringan penyakit yang disebabkan oleh virus kuning yang menyerang tanaman dalam aspek luasan pada populasi tanaman cabai di Kecamatan Tombatu Timur, Kabupaten Minahasa Tenggara. Kebun sampel berukuran minimal 0,5 ha. Pemilihan kebun sampel dilakukan secara purposive sampling, dan dan survei hanya dilakukan satu kali. Sampling pada setiap kebun (plot) cabe dilakukan pada lima subplot (setiap dekat sudut kebun satu plot dan satu subplot di tengah kebun).  Jumlah unit contoh (individu tanaman) per subplot. Jumlah  sampel ialah 20 % dari jumlah tanaman. Hasil penelitian menunjukkan bahwa insidensi penyakit virus kuning pada cabe rawit tertinggi terdapat di kebun melompar atas 100% diikuti oleh Mundung 180,91% esandom 80% Malam part 2 6 8,80% dan melompat 141,88% insidensi Penyakit ini makin tinggi seiring dengan makin tingginya umur tanaman sesudah tanam. Penelitian lanjutan yang disarankan ialah: inventarisasi inang-inang B. tabachi, menginventarisasi inang-inang gemini virus dan penerapan natural farming untuk mengendalikan patogen cabe rawit secara sekaligus. Kata-Kata Kunci: Virus Kuning, Insidensi, Capsicum frutescens
PKM Tentang Bahaya Jamur Fusarium oxysporum Penyebab Mikosis Kulit Pada Ikan Nila Bagi Kesehatan Manusia Katili, Deidy Y; Rondonuwu, Frans Bernhard; Tangkau, Linda Mieneke Shirley; Wahyudi, Lalu; Pontororing, Hanny; Langoy, Marnix
The Studies of Social Sciences Vol. 7 No. 2 (2025): The Studies of Social Sciences
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35801/tsss.v7i2.65426

Abstract

Ikan nila banyak diminati oleh kalangan masyarakat menengah ke bawah. Meningkatnya minat masyarakat terhadap ikan nila tidak dibarengi dengan peningkatan produksi ikan nila tersebut. Produksi ikan nila seringkali menjadi hambatan dengan adanya serangan jamur patogen pada ikan nila seperti salah satunya yaitu jamur Fusarium oxysporum. Jamur patogen ini pula menyerang ikan nila yang siap untuk dipasarkan bagi konsumen. Tujuan dan target khusus yang ingin dicapai pada kegiatan PKM ini adalah peningkatan pengetahuan dan ketrampilan masyarakat dalam eksplorasi jamur patogen ikan nila yang siap dipasarkan dan dikonsumsi. Untuk mengatasi permasalahan kurangnya pengetahuan Masyarakat tentang bahaya jamur pathogen bagi ikan nila, akan digunakan metode penyuluhan dan pelatihan eksplorasi dan bahaya jamur patogen ikan nila terhadap kesehatan manusia. Berdasarkan analisis data hasil tes awal dan tes akhir maka diperoleh hasil bahwa terjadi peningkatan pemahaman peserta sebelum dan sesudah materi pelatihan diberikan, dimana prosentase nilai di bawah 60 tidak ada lagi dan yang tertinggi pada interval 81-90 sebanyak 6 peserta (30%), walaupun tidak ada seorangpun yang memberikan penilaian pada interval nilai 91-100. Berdasarkan analisis rekapan lembar evaluasi topik belajar setelah dilakukan praktek penggunaan pestisida maka diperoleh hasil tertinggi terdapat pada aspek pemahaman dengan kriteria sangat baik (12 peserta). Sedangkan hasil yang rendah terdapat pada aspek ke-4 (kemampuan peserta mengkomunikasikan hasil praktek dengan pihak lain) dengan 7 orang peserta yang memberikan penilaian sangat baik.
The Potential Toxicity of Animal Oils to Pathogenic Fungi Nila Fish (Oreochromis niloticus) Katili, Deidy Y; Singkoh, Marina Flora Oktavine; Rondonuwu, Frans Bernhard; Umboh, Stella Deiby; Langoy , Marnix L D; Montong, Vivi B
JURNAL BIOS LOGOS Vol. 15 No. 2 (2025): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v15i2.63830

Abstract

Nila is a type of freshwater fish that has high economic value, as a source of animal protein for the community, and is an important commodity in the freshwater fish business. Nila is also one of the main commodities that contributes to the increase in aquaculture production. Nila farming often faces the problem of declining yields due to diseases. One of the diseases that is very detrimental to freshwater fish is diseases caused by fungi. The purpose of this study is to test the toxicity of animal oil in inhibiting the growth of Nila pathogenic fungi. Isolation of pathogenic fungi in fish is carried out by cutting the infected parts (scales, fins, and gills) with a size of about 1x1cm. After pure culture is carried out on each pathogenic fungus, then macroscopic and microscopic identification is carried out. Animal oil (lard oil) is taken in the market that is already available. Animal oil is made in four concentration series, namely 25ppm, 50ppm, 75ppm, and 100ppm and control (0ppm). The toxicity test was carried out in vitro using the toxic bait method, which was carried out by growing Nila pathogenic fungi inoculum on PDA media that had been mixed with animal oil. The results of animal fungicide toxicity testing in 5 treatments (A= control – E= 100 ppm) obtained the diameter of pathogenic fungal colonies (5 pathogenic fungi) ranging from 2.88 cm – 6.82 cm. Animal oil fungicides can affect pathogenic fungi in fish, this can be seen in pathogenic fungi Aspergillus sp. which has a relative resistance of 49% (100 ppm), the category is quite influential with a colony diameter of 3.5 cm and in the pathogenic fungus Mucor sp. With a relative resistance of 56% (100 ppm), the category is quite influential with a colony diameter of 2.88 cm.
Co-Authors Deidy Y Katili Hanny Pontororing Lalu Wahyudi Langoy , Marnix L D Marnix Langoy Montong, Vivi B Pinaria, Arthur Gehart Singkoh, Marina Flora Oktavine Tangkau, Linda Mieneke Shirley Umboh, Stella D. Utari Satiman