Journal of Sustainable Development Science

Interaction of Parasitoids with Leaf Miner Fly (Diptera: Agromyzidae) on Potato and Tomato Plants in Bali

I Kadek Redana — 2025-06-24

Lalat pengorok daun, Liriomyza spp. merupakan salah satu hama penting yang menyerang daun tanaman kentang dan tomat di Bali. Penelitian ini bertujuan untuk mengetahui keanekaragaman, kelimpahan, dominasi, dan tingkat parasitisasi spesies parasitoid yang berasosiasi dengan Liriomyza spp. yang menyerang tanaman kentang dan tomat di Bali pada bulan September 2021-Februari 2022 dengan menggunakan metode survei yang meliputi dataran sedang 700-1000 mdpl dan dataran tinggi >1000 mdpl. Penelitian ini menggunakan metode purposive sampling dengan mengambil 150-250 daun tanaman yang menunjukkan gejala ekskresi larva di lokasi penelitian. Hasil penelitian menunjukkan bahwa parasitoid yang berasosiasi dengan Liriomyza spp. pada bulan September 2021-Februari 2022 memiliki nilai indeks keanekaragaman (H) sedang (1,62 - 1,69), kelimpahan (R1) rendah (0,84 - 1,12), dan dominasi (R2) rendah (0,84 - 1,12).

(D) rendah (0,18-0,22). Opius dissitus merupakan parasitoid yang paling banyak berasosiasi dengan Liriomyza spp. dari September 2021-Februari 2022. Pada ketinggian 700-1000 mdpl dan >1000 mdpl, indeks keanekaragaman (H) parasitoid yang berasosiasi dengan Liriomyza spp. memiliki nilai sedang (1,56 dan 1,72), kelimpahan (R1) rendah (0,83 dan 0,74), dan dominasi (D) rendah (0,26 dan 0,19). Opius chromatomyiae merupakan parasitoid yang memiliki tingkat parasitisasi tertinggi sebesar 26,27% pada tanaman kentang pada ketinggian > 1000 mdpl.

Income Analysis and Risk Identification in Garlic Farming at Subak Aya Babahan, Babahan Village, Penebel District, Tabanan Regency

Dewa Ayu Mas Febila — 2025-06-24

Garlic is one of the horticultural subsector commodities that is essential for the Indonesian population. The per capita consumption of garlic in Indonesia from 2013 to 2019 experienced an average annual increase of 8%, from 0.34 kg per capita per year to 0.51 kg per capita per year. Subak Aya Babahan is a pilot project that has been receiving free garlic seed grants from the government since 2013. However, there have been several challenges faced in the farming activities, such as pest and disease attacks, as well as relatively high input costs. These conditions have placed farmers in a situation of uncertainty and risk, which impacts the income levels they generate. Thus, research is needed to analyze the income of garlic farmers, identify the risks associated with garlic farming, and develop mitigation strategies at Subak Aya Babahan using both quantitative and qualitative descriptive analysis methods. The study results indicate that the average income of farmers is IDR 1,881,191 per planting season. The findings also show that on the FMEA map, there are 5 risk agents (50%) in the green area, 2 risk agents (20%) in the yellow area, and 3 risk agents (30%) in the red area. The identified risks that require attention include pest and disease attacks, weather changes, labor skills, substandard seed quality, and pricing agreements with middlemen. Risk mitigation strategies include determining planting patterns, training in biological control, negotiating with partners regarding seed supply, and setting price contracts.

Strategies to Achieve Food Sovereignty (Rice): Lesson from Agricultural Development in Bali Province, Indonesia

Gede Sedana — 2025-06-24

In Indonesia and several developing countries, the agricultural sector plays a very significant role in economic development. Food (rice) in Indonesia is the most basic need because it is the main staple food. Currently, Indonesia's food security has been achieved but is still determined by rice imports from several countries. Therefore, the development strategy is directed at realizing food sovereignty. Various problems and challenges to increase the productivity and quality of rice in Indonesia due to the influence of climate change. degradation of forest function as a buffer for irrigation water, pest and disease attacks, and also the conversion of rice fields.

The results of study pointed out that some of the problems and challenges faced by farmers related to achieving rice sovereignty are related to: (i) degradation of natural resources; (ii) Limited access to agricultural inputs and tools/machines; (iii) Limited access to knowledge and skills related to agribusiness. Several strategies need to be carried out by farmers, the government, and other stakeholders to achieve food sovereignty. Some of them are: Ensuring the availability of irrigation water; controlling the conversion of rice fields; smart farming: increasing productivity and product quality; improving the quality of human resources; Inclusive agricultural business; and developing an agribusiness system, farmer protection and empowerment, and food diversification. In the future, integration and synergy efforts between sectors are needed to build a strong agricultural ecosystem from upstream to downstream so that food sovereignty can be achieved more easily and quickly.

Sustainability of Vanilla in Buleleng District, Bali Province

Komang Devina Mawarni — 2025-06-24

The objective of this research is 1) To analyze the sustainability of vanilla farming in Buleleng Regency, Bali and 2) To formulate a sustainable development strategy for vanilla farming in Buleleng Regency, Bali based on sustainability atrributes. This research was carried out in Buleleng Regency, Bali. The research was carried out for two months from December 2023 to January 2024. To analyze the sustainability of vanilla farming in Buleleng Regency, Bali, the multidimensional scaling (MDS) method was used with the RAP-Farm approach modified from the Rapid Appraisal for Fisheries (RAPFISH) Program. The results of this research are that the index and sustainability status of vanilla farming in Buleleng Regency in terms of environmental, economic and social dimensions falls into the quite sustainable category because it has a value of >50%, namely 59.41%. The strategy for the sustainability of vanilla farming in Buleleng Regency is a strategy to formulate a business capital financing policy that encourages farming development, a farmer regeneration strategy to maintain the number of farmers so that vanilla needs can be met and a training and outreach program strategy based on weather impacts. The suggestions from research on the sustainability of vanilla farming in Buleleng Regency are that the government can support vanilla farmers by expanding access to financing or capital assistance through affordable microcredit programs, as well as providing subsidies or special grants for vanilla farmers who need to increase production capacity.

The Effect of Tillage Methods and Types of Fertilizer on the Quality of Virginia Tobacco Yield in Central Lombok Regency

Azis Satria Putra — 2025-06-27

Tobacco (Nicotiana tabacum) is one of the leading agricultural commodities, alongside rice, widely cultivated in West Nusa Tenggara, particularly in Central Lombok. A majority of the population is engaged in Virginia tobacco farming. However, an optimal combination of tillage practices and fertilizer formulations that can enhance yield and quality at a cost suitable for farmers has not yet been identified. This study aims to determine the most effective tillage method and fertilizer formulation that can improve the yield and quality of Virginia tobacco at an economically feasible cost. The research employed a Split-Plot Randomized Block Design (RBD) with two factors: tillage (C) as the main plot and fertilizer formulation (P) as the subplot. The fertilizer formulation consisted of four levels and was replicated three times. A total of eight treatment combinations (C × P) were tested, each applied in three replicate plots. The results showed that optimal tillage (Co) produced the best outcomes. Additionally, fertilizer formulation Pp significantly increased both the fresh leaf weight and oven-dried leaf weight per plant compared to other treatments. The combination of Co and Pp (CoPp) was found to be the most effective treatment, providing relatively high yield and quality at a comparatively low cost.

The Influence of Work-Family Conflict on Employee Performance at Perumda Air Minum Tirta Mangutama Badung Regency

I Putu Yudi Pramana — 2025-06-27

Perumda Tirta Mangutama faces several complex challenges, including service disruptions and infrastructure issues. This is reflected in the significant fluctuations in the number of complaints received each year and work family conflict is one of the causes of this problem, especially the decline in employee performance. So this research aims to assess The Influence of Work-Family Conflict on Employee Performance at Perumda Air Minum Tirta Mangutama Badung Regency. The data in this research was then analyzed using descriptive analysis and inferential analysis, especially Partial Least Squares (PLS). This research can formulate conclusions in the form of a real relationship between work family conflict and employee performance so that it becomes a special attention to improving the quality of the Perumda Air Minum Tirta Mangutama in Badung Regency.

The Influence of Leadership Style and Work Discipline on Employee Performance with Work Motivation as a Mediating Variable at Bank Woori Saudara, Denpasar Branch Office

I Dewa Agung Ayu Eka Idayanti — 2025-06-29

This research aims to determine the influence of leadership style and work discipline on employee performance, with work motivation as a mediating variable at Bank Woori Saudara Denpasar Branch Office. Research was conducted at BWS KC Denpasar located in Renon, Denpasar. The research used a sample of 127 BWS KC Denpasar employees. Path analysis is used as a data analysis technique. Research findings show that leadership style influences employee performance at BWS KC Denpasar, and work discipline also influences employee performance. Apart from that, employee motivation has a significant effect on employee performance. Leadership style also plays a role in influencing work motivation and work discipline also influences worker motivation. Leadership style has an indirect effect on employee performance through work motivation at BWS KC Denpasar, and likewise work discipline has an effect on employee performance through work motivation.