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All Journal JOURNAL OF SCIENCE AND SOCIAL RESEARCH Sulolipu: Media Komunikasi Sivitas Akademika dan Masyarakat
Wulan, Diah Nawang
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Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Nursing Public Health Social Sciences

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Uji Efektivitas Ekstrak Daun Serai Wangi (Cyombogonardus L) Dengan Metode Sprayer Terhadap Kematian Rayap Pekerja Khaer, Ain; Rostina, Rostina; Wulan, Diah Nawang; Haerani, Haerani
Sulolipu: Media Komunikasi Sivitas Akademika dan Masyarakat Vol 24 No 1 (2024): Jurnal Sulolipu: Media Komunikasi Sivitas Akademika dan Masyarakat
Publisher : Jurusan Kesehatan Lingkungan Poltekkes Kemenkes Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32382/sulo.v24i1.471

Abstract

Natural pesticides are derived from plants and contain active compounds produced through secondary metabolism. These compounds possess one or more biological actions that can effectively control insects. Lemon grass (Cymogonardus L) is a natural insecticide that contains various compounds, including a volatile essential oil. This liquid is effective in killing termites by harming their respiratory system and suppressing their appetite. The research aimed to assess the efficacy of citronella leaves (Cyomogonardus L) as a botanical insecticide in eradicating termites. The research methodology employed is quasi-experimental, explicitly utilizing the spray method. This study used a sample size of 20 termites subjected to citronella leaf extract at 4%, 5%, and 6%. Control groups were also included, and the mortality rate of all groups was monitored every 15 minutes for 1 hour over three treatments. The findings demonstrated that the citronella leaf extract, when used at a concentration of 4%, resulted in the mortality of 12 mice (60%). Similarly, at a concentration of 5%, the extract caused the death of 16 mice (80%), while at a concentration of 6%, it led to the death of 17 individuals (85%). In contrast, the control group did not experience termite mortality, indicating the absence of citronella leaf extract administration. Research findings suggest that citronella leaf extract could exterminate termites. The study found that the citronella leaf extract concentrations of 4%, 5%, and 6% were tested, and only the concentrations of 5% and 6% showed effectiveness. According to the research findings, it can be inferred that citronella leaf extract is successful when its concentration is equal to or greater than 80%. It is recommended that the general population utilize citronella leaf extract for termite control, and additional studies on this topic are encouraged  Keywords : Termites, Lemongrass Leaves, Essential Oil, Spray Method
IMPLEMENTASI ALGORITMA MULTIPLE LINEAR REGRESSION DALAM MENGESTIMASI HASIL PANEN TANAMAN TEMBAKAU wulan, Diah nawang; Barata, Mula Agung; Sa'ida, Ita Aristia
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 3 (2025): August 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i3.3662

Abstract

Penilitian ini bertujuan untuk menaksir panen tembakau petani di Desa Balongrejo menggunakan algoritma regresi linier khusus. Data yang digunakan terdiri dari empat variabel dasar: jumlah bit, jumlah pembelian, jumlah transaksi, dan jumlah jam. Analisis dilakukan secara manual dan dengan bantuan alat statistik. Hasil analisis data menunjukkan bahwa model regresi dapat menjelaskan 95,5% varians dalam data. Selain itu, uji F menunjukkan semua variabel memiliki pengaruh yang signifikan secara bersamaan, sedangkan uji t mengidentifikasi tiga variabel yang memiliki pengaruh signifikan secara terpisah.
Co-Authors Haerani Haerani Ita Aristia Sa'ida Khaer, Ain Mula Agung Barata Rostina Rostina