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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian Jurnal Pembelajaran dan Biologi Nukleus
Wiwin Windriyanti
UPN Veteran Jawa Timur
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media

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Insect Diversity Study on Shallot Plants: Comparison of Ecological Engineering and Conventional Cultivation Systems Amelia Seftiarini; Tri Mujoko; Wiwin Windriyanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1476-1488

Abstract

This study examines the cultivation of shallots using an ecological engineering approach to enhance insect diversity and natural pest control. The applied methods include compost application, refugia planting, and the use of biological agents to reduce synthetic pesticide dependence. The study compares two management systems: ecological engineering farmland (EF) and conventional farmland (CF), with insect data collected using various trapping methods. The results show that EF had a higher insect population (23,428 individuals) compared to CF (14,880 individuals). A total of 181 morphospecies from 10 orders, 85 families, and 170 genera were identified, with Coleoptera being the dominant order and predatory insects prevailing in both farmlands. The diversity index was higher in EF (3.079) than in CF (2.725). The evenness index was also higher in EF (0.608–0.624) than in CF (0.561–0.603), indicating a more stable ecosystem. The dominance index was low in both farmlands (0.003–0.188), showing no single species significantly dominated. The community similarity index was relatively high at 0.666 (vegetative), 0.651 (generative), and 0.712 (one growing season). Although the t-test showed no significant differences, EF tends supports more sustainable shallot farming by enhancing biodiversity and ecosystem stability. Further research is needed to evaluate long-term impacts and the implementation of polyculture systems to strengthen agricultural ecosystems.
PENGARUH JUMLAH PIAS Corcyra cephalonica dan PENYINARAN ULTRAVIOLET TERHADAP PRODUKSI Trichogramma chilonis Feraldo Diega Christantyo; Wiwin Windriyanti; Noni Rahmadini
Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian Vol 21 No 1 (2026): Mei 2026
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/afmy5s15

Abstract

Upaya pengendalian hama tanaman tebu (Saccharumofficinarum) dapat dilakukan dengan memanfaatkanagensi hayati seperti parasitoid telur Trichogramma chilonis. Perbanyakan T. chilonis di laboratorium umumnya menggunakan telur Corcyra cephalonicasebagai inang sebagai inang belum optimal dikarenakan  belum diketahui potensi produksi optimal parasitoid tersebut. Akan tetapi, faktor jumlah pias telur inang dan lama penyinaran ultraviolet (UV) diduga mempengaruhi hasil produksi parasitoid. Penelitian ini bertujuan untuk mengetahui pengaruh jumlah pias C. cephalonica dan lama penyinaran UV terhadap kualitas biakan T. chilonis di laboratorium.Penelitian ini menggunakan Rancangan Acak Lengkap(RAL) 2 faktor yaitu Jumlah pias inang dan lama penyinaran UV diulang sebanyak 3 kali sehinggadiperoleh kombinasi perlakuan sebanyak 27 unit. Hasil menunjukkan bahwa faktor jumlah pias dan lama penyinaran UV berpengaruh nyata terhadap daya parasitasi, kemunculan imago, dan nisbah kelamin, namun tidak terdapat interaksi antar keduanya. Jumlah pias 3 dan lama penyinaran UV 60 menitmenghasilkan kualitas biakan terbaik dan dapat direkomendasikan untuk perbanyakan massal T. chilonis. Jumlah pias dan lama penyinaran UV Optimal dapat meningkatkan hasil  produksiparasitoid.
Distribution Pattern and Population Density of Spodoptera frugiperda (Lepidoptera: Noctuidae) in Corn Fields in the Tanggunggunung Hills, Tulungagung Regency Tito Ridho Nugroho; Wiwin Windriyanti; Noni Rahmadhini
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.v11i4.8376

Abstract

Background: Corn is an important commodity in Tulungagung Regency; however, infestations of Spodoptera frugiperda have caused substantial yield losses, particularly during the vegetative growth stage, with reported damage levels reaching 20–70% depending on infestation intensity. Understanding the population density and spatial distribution of this pest under local agroecosystem conditions is therefore essential for developing effective control strategies. This study aimed to analyze the population density, distribution pattern, and environmental relationships of S. frugiperda on corn plants in the hilly area of Tanggunggunung, Tulungagung Regency. Methodology: The research was conducted on corn plants aged 15 to 45 days post-planting at two distinct locations: Ngrejo Village (approximately 110 meters above sea level) and Jengglungharjo Village (approximately 145 meters above sea level), each encompassing an area of 25 square meters. A two-dimensional sampling method was employed, utilizing 10 fixed observation plots per field, with observations occurring every three days. The variables observed included pest population density, symptoms of pest attack, and abiotic environmental factors such as temperature and humidity. Distribution patterns were analyzed using the Morisita index and the degree of Morisita (Ip), while the relationships between pest populations and environmental factors were examined through Pearson’s correlation analysis. Findings: The population of S. frugiperda in Ngrejo village exhibited a random distribution pattern (Id= 1.016; Ip= 0.004), whereas in Jengglungharjo village, it demonstrated a tendency towards clustering (Id = 0.211; Ip= 0.456). The density of the pest population showed a strong positive correlation with temperature (r= 0.799 to 0.702) and a negative correlation with humidity (r= −0.661 to −0.423). Contribution: Microclimatic conditions play a key role in shaping the spatial distribution and population density of S. frugiperda, highlighting the importance of site-specific, ecology-based pest management to improve corn productivity in hilly agroecosystems
Co-Authors Amelia Seftiarini Feraldo Diega Christantyo Noni Rahmadhini Noni Rahmadini Tito Ridho Nugroho Tri Mujoko