<![CDATA[The study on the utilization of citronella as an environmentally sustainable alternative bioherbicide was conducted to support sustainable weed management practices and reduce dependence on synthetic herbicides. This study aimed to evaluate the potential of citronella as an environmentally sustainable alternative bioherbicide through a literature review approach. Research data were collected from national and international scientific articles published between 2018 and 2026 and analysed using a qualitative descriptive method. The results of the review indicate that weed infestation can reduce rice yield by 30–36% and decrease agricultural product quality by approximately 10–20%. The use of synthetic herbicides remains dominant in weed control, with glyphosate accounting for 57.1% and 2,4-D for 42.8%; however, their repeated application may lead to weed resistance and environmental contamination. Citronella has been reported to contain bioactive compounds, including citronellal (55.23%), geraniol (26.29%), and citronellol (13.41%), which have the potential to inhibit weed growth through allelopathic activity. Several studies have also demonstrated the effectiveness of plant-based bioherbicides in suppressing weed growth, such as Ageratum conoids leaf extract, which was effective at a concentration of 50%, and papaya leaf extract, which exhibited phytotoxicity levels of 13.35–17.5% at concentrations of 60–70%. Based on the findings of this review, citronella shows considerable potential as an environmentally sustainable alternative bioherbicide due to its effectiveness in weed suppression, biodegradability, and compatibility with sustainable agricultural systems.]]>
