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Effectiveness of Biolarvicides of Imperata cylindrica, Saccharum spotaneum and Andropogon aciculatus on Aedes aegypti larval Mortality and Egg-laying Ability in Adults Listiono, Heru; Damiri, Nurhayati; Kamaluddin, Totong; Irsan, Chandra; Rahim, Supli Effendi
HAYATI Journal of Biosciences Vol. 32 No. 3 (2025): May 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.3.649-660

Abstract

Vector-borne disease such as Dengue Hemorrghagic (DHF), transmitted by Aedes aegypti and Aedes albopictus, remain a significant public health concern in Indonesia. Controlling these disease often involves insectides; however, the negative impact of chemical insecticides have prompted interest in organic alternatives derived from plants. Certain weeds, including cogon grass (Imperata cylindrica), wild sugarcane (Saccharum spontaneoum), and needle grass (Andropogon aciculatus), have shown potential as botanical insecticides. Research findings showed that weed root extracts significantly affect larval mortality rate of Ae. Aegypti. At 1000 ppm, larval mortality was significantly higher compared to 100 ppm and the control, while treatments of 1 ppm and 10 ppm showed similar results to the control. Probit analysis revealed that I. cylindrica root extract achieved an LC50 of 974.99 ppm within 24 hours, indicating it could kill 50% of Ae. Aegypti larvae. Within 48 hours, the LC50 dropped to 889.20 ppm. Toxicity tests further revealed significant differences in Ae. Aegypti egg-laying abilities when treated with extracts. Analysis of variance yielded p-values of 0.000 for egg hatching within 72 and 96 hours, highlighting significant differences across samples. These findings suggest the extracts influence mosquito reproduction, warranting further studies to assess the quality of egg hatched from larvae exposed to these treatments. The potential of botanical insecticides derived from weeds represents a promising step toward sustainable mosquito control in the fight against vector-borne diseases.
Characteristics and Abundance of Microplastics in the Feces of Communities on the Banks of the Musi River, Palembang Anwar, Khairil; Damiri, Nurhayati; Windusari, Yuanita; Zulkarnain, Mohammad
Tropical Health and Medical Research Vol. 7 No. 1 (2025): Tropical Health and Medical Research
Publisher : Baiman Bauntung Batuah Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35916/thmr.v7i1.127

Abstract

Microplastic pollution has become an increasingly worrying global environmental issue. Microplastics are plastic particles measuring less than 5 mm from the degradation of large plastics or using products containing microplastics. Microplastics can enter the human body through contaminated food, water, and air, with feces being one of the indicators of exposure. This study aims to analyze the characteristics and abundance of microplastics in feces in communities on the banks of the Musi River in Palembang City. This study used a descriptive design with laboratory analysis. Fecal samples were collected from 50 respondents selected by purposive sampling based on fish consumption patterns and water sourced from the Musi River. The study was carried out using the microplastic separation method using a solution and particle identification using a stereo microscope and FTIR spectroscopy. The results showed that microplastics were found in all respondents' feces samples, with concentrations ranging from 9-27 particles per gram and an average of 18 particles per gram. The dominant types of microplastic polymers found were Polystyrene (PS), Nylon, Polyvinyl chloride (PVC), Polypropylene (PP), Polyethylene Terephthalate (PET), and Polyethylene (PE). It was concluded that the presence of microplastics in feces indicates significant exposure. Microplastics, such as fragments, fibers, and other particles, were found in people's feces with various shapes, sizes, and colors. The abundance of microplastics in feces indicates contamination, which most likely comes from consuming food and drinks exposed to microplastics. It is recommended that a campaign be carried out to reduce single-use plastic or increase waste processing in riverbank areas.
Spatial Analysis of Flood Vulnerability and Retention Ponds Saputra, Erlianto Hona; Damiri, Nurhayati; Imanudin, Momon Sodik; Ngudiantoro, Ngudiantoro
Journal La Lifesci Vol. 6 No. 1 (2025): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v6i1.2022

Abstract

Flooding is one of the causes of environmental damage worldwide. Several things that can affect flooding in urban areas, Palembang experiences periodic flooding problems, especially every rainy season. The data in this article consists of primary data obtained from location surveys in retention ponds, including: documentation, topography, depth of retention ponds and secondary data from related agencies, including: location maps, climatology, regional topography. Palembang City has varying levels of flood vulnerability: high (Jakabaring, Kertapati, Plaju, and Seberang Ulu), medium (Ilir Barat and Sukarame), and low (Alang-Alang Lebar). Lowland areas with poor drainage systems require more attention. Retention ponds play an important role in managing rainwater runoff, such as the Jakabaring Sports Hall (200,000 m²), Ogan Permai Indah (22,217 m²), and Brimob Demang Lebar Daun (30,000 m²). The city's topography, which is mostly flat and low, especially around the Musi River, further increases the risk of flooding.
Distribution of Hotspots and Forest and Land Fire Control Efforts Rizwan, Achmad; Hendarso, Yoyok; Saptawan, Adriyan; Damiri, Nurhayati
Journal La Lifesci Vol. 5 No. 6 (2024): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v5i6.2036

Abstract

Forest fires are a common ecosystem disturbance globally and have a significant impact on the environment and human life. Ecologically, fires result in decreased land productivity, loss of forest economic value, and threats to biodiversity. The study was conducted quantitatively and qualitatively with secondary and primary data. The data shows fluctuations in the number of hotspots and the area of burned land from 2019 to 2024. Major fires occurred in 2019 and 2023, while a significant decline was seen in 2020 and 2024. This decline reflects the effectiveness of fire mitigation involving the government and the community. Efforts that have been made to reduce the risk of forest and land fires in OKI Regency include peatland rewetting, community education, peatland-based economic empowerment, joint patrols, and the active role of the Fire Aware Community (MAPI) group. The use of satellite-based monitoring technology is also an important step in fire monitoring and mitigation. Preventing forest and land fires in the future requires a comprehensive and sustainable approach, including law enforcement against illegal land burning, increasing patrols, and strengthening community education. Collaboration between stakeholders such as BPBD, local governments, communities, and the private sector is very important to maintain the stability of forest and land fire reduction in the OKI region.
Evaluation of the Implementation of Precision Agricultural Technology on Tidal Land: Case Study in Tanjung Baru Village, Muara Padang, Banyuasin Regency, South Sumatra of Indonesia Rahim, Supli; Aminah, Raden Iin Siti; Marlina, Neni; Batubara, Mustopa Marli; Murtado, Ade; Helida, Asvic; Basuki, Rahmad; Elfama, Yudha; Rosita; Fitriani; Natalia, Anita; Yusup, Muhammad; Lucyana; Saputra, Ari; Fitriani, Eka Yuliana; Sapsidi, Herlianto; Permana, Deddy; Badriah, Dina; Damiri, Nurhayati; Supli, Nur Aslamiah
Journal of Smart Agriculture and Environmental Technology Vol. 3 No. 1 (2025): April 2025, Published 2025-04-07
Publisher : Indonesian Soil Science Society of South Sumatra in Collaboration With Soil Science Department, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2025.3.1.31-36

Abstract

The study aims to evaluate the application of precision farming  technology in Tidal Land, Tanjung Baru Village, Muara Padang, Banyuasin. The study uses quantitative and qualitative approaches with field observation and survey methods and in-depth interviews. The population of the study was all farmers who manage agricultural land in Tanjung Baru Village. The research sample was taken purposively, namely farmers who have implemented or tried to implement precision farming. The number of samples was 30 farmers. Data collected included the use of precision farming technology, the obstacles faced and its impact on farmer productivity and welfare. In addition, the experience of farmers in implementing precision farming and identifying proposed solutions was also studied. Results of this study are that the majority of farmers in Tanjung Baru Muara Padang Banyuasin village were aged 41-50 years (46.7 percent), with an even level of education between high school, junior high school, and elementary school graduates. The largest land ownership is 3-5 hectares (53.3 percent). As many as 93.3 percent of respondents have implemented precision farming technology, with tractors and combine harvesters as the most commonly used technology. GIS  technology is used by 23.3 percent of respondents, drones by 10 percent, and plowing tools and machines and GRPS systems by 3.3 percent of respondents each. The main reasons for using technology are to increase farming productivity, reduce costs, and increase farming efficiency. Respondents want easy access to technology (50 percent), technical assistance (26.7 percent), and subsidy and financial assistance (20 percent). As many as 90 percent of respondents stated that they would continue to use precision farming technology in the future. More than 30 percent of respondents suggested assistance with precision farming tools and education and training, while 20 percent suggested the provision of water pumps. This indicates the need for comprehensive and sustainable support to increase the adoption of precision farming technologies.
Feasibility analysis and contribution of beekeeping to the welfare of beekeepers in Gunung Megang, Muara Enim Regency, South Sumatra Province, Indonesia Rahmad, Beni; Damiri, Nurhayati; Hanafiah, Zazili; Adriani, Dessy
Dinasti International Journal of Education Management And Social Science Vol. 5 No. 4 (2024): Dinasti International Journal of Education Management and Social Science (April
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v5i4.2533

Abstract

The purpose of this study was to obtain data on costs incurred from the production process, and data on farmer income from beekeping. The total revenue data is then used to analyze the feasibility of beekeeping and its contribution to increasing farmers welfare. The research was carried out using a survey with a quantitative method. Respondents were determined by purposive sampling, the members of Sari Puspa Farmers Group domiciled in Sumaja Makmur Village, Gunung Megang, Muara Enim Regency, totaling 20 peoples. Respondents are farmers who also work as beekeepers in their rubber and oil palm plantations. From the results of research on the cash flow of each beekeeper during 2022, a total revenue (TR) of IDR 152,600,000,- and the total cost of production (TC) is IDR 21,900,000.-. So that overall a total income of IDR  130,700,000,- with an average profit of IDR  6,535,000,- per year. Meanwhile, from farming activity, which is the main job of beekeepers, the average annual income per hectare of arable land is IDR  38,400,000,- so that the total income of the farmer's household is IDR  44,935,000,- per year. Income from the beekeping  contributes 14.5%, and is included in the low category. The initial investment value based on financial feasibility analysis is IDR  11.153.600,- While the income for 1 harvest period is IDR. 6,535,000,-. So based on these data the BEP of production is 102 Kg. The bekepers will break even if production reaches or exceeds 102 Kg. Meanwhile, at a BI rate of 5.75%, NPV of IDR  13,564,82,-  is obtained, an IRR value of 55%, B/C ratio value of 1.61 and a Payback period of 1 year 8 months and 8 days. Based on the analysis indicators, the beekeeping at Farmer Group of Sari Puspa is in the feasible category.
Diversity of Soil Insects in Coal Post Mining Land of PT. Bukit Asam Tbk in Tanjung Enim Paserena, Karinda Dwi; Damiri, Nurhayati; Setyawan, Dwi
Sriwijaya Journal of Environment Vol 9, No 1 (2024): Environment and Suistainable Development
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22135/sje.2024.9.1.11-17

Abstract

Coal mining activities carried out openly can have a negative impact on the environment. One of the environmental damages that occurs is the loss of habitat for soil-level insects. This research was conducted to identify the diversity of soil surface insect species in post-coal mining land of PT. Bukit Asam Tbk Tanjung Enim IUP Banko Barat at various ages of reclamation. Soil surface insect samples were collected using the pitfall trap method which was carried out for 1x24 hours. The results showed that the highest presence of soil surface insect species occurred in aged 6 years with a total of 128 individuals and was dominated by the order Hymenoptera. The species diversity index in post-coal mining land aged 6 years, namely 1.51, is classified as moderate. The lowest presence of soil surface insects occurred in aged 2 years with a total of 24 individuals. The species diversity index in post-coal mining land aged 2 years, namely 0.85, is relatively low. Thus, the research results show that the diversity of surface soil insects is influenced by the age of reclamation. The longer the land is managed, the higher the index of diversity of soil surface insect species in post-coal mining land.