The Taitung District Agricultural Research and Extension Station (TTDARES) of the Ministry of Agriculture held the Demonstration Event for Paddy Earhead Bug Prevention and Fertilization Management for Organic Rice on June 9, 2026, in the town of Guanshan, which was attended by over 30 people including farmers and those from farmers’ associations, rice mills, and academic organizations. About 100 hectares of land are dedicated to organic rice farming in Guanshan, and a recent influx of paddy earhead bugs has increased the occurrence of discoloration and damaged rice quality. Based on field research, the TTDARES discovered a prevention method involving a local Beauveria fungus, which was tested three times in both crop seasons of 2025. The results yielded a prevention rate of at least 75%, and discoloration for white rice was reduced by at least 40%, making apparent the effectiveness of the measure. The critical period of prevention is from heading to just before flowering. The population density of the pests must be controlled as early as possible to maintain rice quality. In addition, the TTDARES promoted deep fertilization. While planting seedlings, organic fertilizer is placed deep in the soil to enhance fertilization efficiency and boost quality, in turn increasing profits while reducing greenhouse gas emissions and the occurrence of rice blast. The TTDARES stated that through the use of Beauveria , deep fertilization, and integrated pest management, they have effectively controlled the problem of paddy earhead bugs in Guanshan and expect this season’s crops to be of much higher quality than last year’s, setting a solid foundation for the sustainable management of organic rice.