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YULIA PUJIASTUTI
Department of Plant Pests and Diseases , University of Sriwijaya, Inderalaya, Ogan Ilir,30662,Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Social Sciences Veterinary Other

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PEMANFAATAN LIMBAH AGROINDUSTRI DALAM PERBANYAKAN BACILLUS THURINGIENSIS DAN TOKSISITASNYA TERHADAP LARVA Oryctes rhinoceros Syahputri, Messa; Pujiastuti, Yulia; SHK, Suparman
Jurnal Agrotek Tropika Vol. 13 No. 1 (2025): JURNAL AGROTEK TROPIKA VOL 13, FEBRUARI 2025
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v13i1.8840

Abstract

Tujuan dari penelitian ini adalah untuk mempelajari efek limbah agroindustri dalam perbanyakan B. thuringiensis dan toksisitasnya terhadap larva O. rhinoceros. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 5 perlakuan dengan 4 kali ulangan meliputi : P1: (bekatul + bungkil kelapa sawit (2:1), P2: (bekatul + ampas tahu) (2:1), P3 (bekatul + bungkil kacang tanah) (2:1), P4 (bekatul + ampok jagung) (2:1), P5 (kontrol air) pada ruangan laboratorium (kisaran suhu 23,34oC-26,01oC dan kisaran kelembaban udara relatif 51,25% - 78,14%). Serangga uji berupa larva O. rhinoceros instar ke-3 sebanyak 6 ekor setiap ulangan. Tingkat mortalitas tertinggi (91,67%) tercatat pada perlakuan P1 (bekatul + bungkil kelapa sawit), sedangkan tingkat mortalitas terendah (66,67%) terjadi pada perlakuan P3 (bekatul + ampok jagung). Infeksi B. thuringiensis menyebabkan nafsu makan larva menurun dan mengakibatkan panjang dan berat tubuh larva mengalami penurunan selama pengamatan. Infeksi B. thuringiensis pada larva menyebabkan terjadinya perubahan warna pada tubuh dari putih menjadi kecoklatan hingga kehitaman dan akhirnya larva mati dalam keadaan tubuh melunak dan membusuk disertai cairan yang keluar dari tubuh larva. Secara keseluruhan hasil percobaan menunjukkan bahwa bioinsektisida berbahan aktif B. thuringiensis dengan media campuran limbah padat pertanian efektif untuk membunuh larva O. rhinoceros.
The Effects of Some Different Cultural Techniques on the Transmission and Infectious Development of Pepper Yellow Leaf Curl Indonesia Virus on Red Chili Suparman, Suparman; Arsi, Arsi; Pujiastuti, Yulia; Pratama, Rahmat
AGRIVITA Journal of Agricultural Science Vol 46, No 1 (2024)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v46i1.4259

Abstract

An experiment is conducted to investigate the effects of cultural techniques on pepper yellow leaf curl disease caused by Pepper yellow leaf curl Indonesia virus (PepYLCIV). The investigation is conducted in the area where the disease has been endemic and Bemisia tabaci is abundant. Four cultural techniques are applied in separate lands and cannot interfere with each other. The methods applied are seed treatment, intercropping, trap cropping, and physical barrier. Seeds harvested from infected plants are used for seed treatment experiments, and local farmers use commercial sources for other experiments. The results confirmed that PepYLCIV was a seed-borne virus affected by hot water treatment at 65oC for 30 minutes. Turmeric crude extract could reduce the incidence and severity of the disease. The tomato is a better intercrop than eggplant, mung bean, and soybean in reducing disease incidence, but their effects on disease severity and yield reduction were not significantly different. Basil and marigolds were better barrier crops compared to cosmos and zinnia. A 125 cm high physical barrier using 50 mesh cheesecloth could reduce the disease incidence, but not the lower ones. Under different cultural techniques, PepYLCIV causes a 40.00–52.32% chili yield reduction.
Epidemiology of banana bunchy top disease in South Sumatra, Indonesia Arsi, Arsi; Suparman, Suparman; Pujiastuti, Yulia; Irsan, Chandra
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 25 No. 2 (2025): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.225298-308

Abstract

Banana bunchy top disease has become increasingly important in South Sumatra. The disease, caused by Banana bunchy top virus (BBTV), leads to severe losses as infected plants fail to produce fruit. The virus is transmitted in a persistent manner by banana aphid, Pentalonia nigronervosa. Both nymphs and adults of the aphid can transmit the virus, with adults being more efficient vectors than nymphs. The threat of the disease in the province has been escalating, as indicated by the significant rise in the number of infected banana plants in the recent years. However, no epidemiological study had been conducted prior to this research. This study aimed to identify and evaluate the contributing factors to the epidemic of banana bunchy top disease in South Sumatra. A survey was conducted to assess the banana cropping system and all aspects contributing to the disease’s epidemiology in the province. Thirteen regencies were surveyed using a purposive sampling method, covering 11 regencies and 3 cities selected based on the accessibility of banana plantations by transportation routes. In each site, banana plants within an imaginary 50-meter diameter circle centered on an infected plant were sampled. The result showed that the BBTV epidemic was influenced by several factors: (1) banana genome, with diploid AA and triploid AAA cultivars being more resistant than those containing the B genome; (2) cropping system, with higher disease prevalence in mixed-cropping systems than in monoculture; (3) botanical environment, where the presence of alternative hosts of P. nigronervosa correlated with higher disease incidence; (4) farmer behavior, with lack of concern or action against the disease contributing to its spread; and (5) transportation access, with higher incidence observed in areas closer to roads.
KEANEKARAGAMAN ARTHROPODA PADA TANAMAN CABAI MERAH DI BAWAH NAUNGAN TANAMAN AREN DI SUMATERA SELATAN Herlin, Weri; Irsan, Chandra; Oktaviani, Oktaviani; Pujiastuti, Yulia; Saputra, Muhamad Ridho
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 27 No 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.27.2.140-147

Abstract

[ARTHROPOD DIVERSITY IN RED CHILI CULTIVATION UNDER SUGAR PALM SHADE IN SOUTH SUMATRA]. Arthropods are essential components of terrestrial ecosystems, functioning as pollinators, decomposers, herbivores, and natural enemies, and their presence reflects the health of agricultural landscapes. The red chili agroforestry system under sugar palm shading in South Sumatra creates a favorable habitat for arthropod communities through the interaction of canopy cover, microclimate conditions, and plant diversity. This study aimed to analyze the structure, diversity, and ecological roles of arthropod communities associated with chili plants withinthis system. Sampling was conducted systematically across several plots, and collected specimens were identified and analyzed using the Shannon–Wiener diversity index, evenness, and dominance metrics. The results showed that the arthropod community consisted of various orders, with predators forming the dominant guild, followed by pollinators, herbivores, and decomposers. The balanced distribution of individuals among trophic groups indicates a stable community structure, while fluctuations in population density were associated with plant growth stages and seasonal variation. The agroforestry environment of chili plants shaded by sugar palms supports a functionally diverse arthropod community that contributes to maintaining biodiversity and enhancing natural pest regulation. Arthropods in shaded cultivation also experience a more stable microhabitat than those in open fields, allowing for stronger interspecific interactions, including predator–prey dynamics that aid in natural pest suppression. Sustained diversity suggests that agroforestry systems reduce environmental stress on arthropod populations, helping communities function effectively. Therefore, the findings of this study provide an important scientific foundation for developing sustainable agroforestry management strategies that improve ecosystem services and support resilient agricultural production. Full txt pdf
OPTIMALISASI GULMA SEKITAR TANAMAN AREN SEBAGAI PESTISIDA NABATI RAMAH LINGKUNGAN UNTUK PERTANIAN BERKELANJUTAN Herlin, Weri; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia; Oktaviani, Oktaviani; Arinafril, Arinafril; Pratama, Rahmat; Susilawati, Susilawati; Sandi, Sofia
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 3 (2025): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i3.31430

Abstract

Abstrak: Gulma sering dianggap sebagai tanaman pengganggu yang menurunkan produktivitas, namun gulma mengandung senyawa bioaktif seperti alkaloid, flavonoid, terpenoid, saponin, dan lainnya yang berpotensi dijadikan pestisida dan pupuk organik. Tujuan kegiatan pengabdian masyarakat ini adalah memberikan edukasi kepada petani di Desa Tanjung Dayang Utara, Sumatera Selatan, mengenai pemanfaatan gulma sebagai bahan dasar pestisida dan pupuk nabati yang ramah lingkungan serta berbiaya rendah. Metode pelaksanaan meliputi tahapan sosialisasi, penyuluhan, demonstrasi, pendampingan, dan evaluasi. Sebanyak 50 petani dan tokoh masyarakat mengikuti pelatihan pembuatan pestisida gulma dengan dua metode: sederhana dan ekstraksi. Evaluasi dilakukan secara berjenjang melalui diskusi pra-penyuluhan, uji praktek saat penyuluhan, dan pengamatan pertumbuhan tanaman. Hasil menunjukkan adanya peningkatan softskill peserta dalam pengolahan gulma hingga 75%, serta penurunan biaya pembelian pestisida dan pupuk sintetis hingga 40%. Kegiatan ini juga meningkatkan kesadaran petani terhadap praktek pertanian berkelanjutan dan penggunaan sumber daya lokal. Diharapkan ilmu yang diperoleh dapat ditransfer ke petani lain sehingga berdampak lebih luas dalam mendorong kemandirian dan efisiensi usaha tani.Abstract: Weeds are often seen as nuisance plants that reduce crop productivity. However, they contain bioactive compounds such as alkaloids, flavonoids, terpenoids, and saponins, which can be utilized as natural pesticides and organic fertilizers. This community service activity aimed to educate Tanjung Dayang Utara Village, South Sumatra farmers on using weeds as eco-friendly and low-cost agricultural inputs. The program involved socialization, counseling, presentations, mentoring, and evaluation. Fifty farmers and community leaders took part in training on pesticide production using simple and extraction methods. Evaluation was conducted through pre-counselling discussions, practical sessions, and plant growth observation. The activity improved participants' skills in weed processing by up to 75% and reduced the cost of synthetic pesticide and fertilizer use by up to 40%. It also increased awareness of sustainable farming practices and encouraged the use of local natural resources. The knowledge gained is expected to be shared with other farmers, fostering a broader impact through improved self-reliance and farming efficiency.
Co-Authors ., Effendy Abu Umayah Ade Dwi Sasanti Andini Siregar, Regina Sri Anggarini, Dewi Araz Meilin ARINAFRIL ARINAFRIL Arsi, Arsi Ayu Wandhari, Vindha Azim, Saida Fitriani Bambang Gunawan Chandra Irsan Damayathi, Dini Dirgahayu, Sarah Djulian, Dhanillo Febriani, Elsa Fitra Gustiar, Fitra Hadi, Buyung A. Hadikusuma, Suparman Surya Hakari, Irfan Mohandis Harman Hamidson Ilyasov, Rustem Jasmi Jasmi Jauharlina Jauharlina karenina, Tili Lailaturrahmi Lailaturrahmi, Lailaturrahmi Mauluddin, M. Muhari, Muhari Mulawarman Mulawarman Munandar, Rudi Putra Nurul Insani Shullia Oktaviani oktaviani Pradana, Mahardika Gama Pratiwi, Fannia Aristika PUJI LESTARI Rahmadhani, Tiara Putri Rahmadhani, Tiara Putri Rahmat Pratama, Rahmat Riansyah, Wanda Helmi RIKA RAFFIUDIN Saputra, Muhamad Ridho Sekarweni, Hastin Wulan SHK, Suparman Simanjuntak, Juniarto Gautama SITI HERLINDA Siti Masyitah, Siti Sitompul, Kristian B. Sitompul, Rahmadi Sofia Sandi Sulistyani, Dwi Probowati Sumikarsih, Eka Sunarsih, Fitri Suparman Suparman Susilawati, Susilawati Suwandi Suwandi Suwandi Syahputri, Messa Tri Atmowidi Weni, Hastin WS Weri Herlin WINDRA PRIAWANDIPUTRA, WINDRA