Bacillus thuringiensis (Bt) is widely used as an environmentally friendly insecticide compared to chemical insecticides. However, challenges such as difficulty in direct practical application, limited efficacy duration, and stability have been identified. To solve these issues, formulation-based research is being extensively conducted. In this study, the high insecticidal activity strain Bt IMBL-B9, identified in previous research, was subjected to large-scale cultivation using a fermentor. Subsequently, various formulations were developed through formulation processes. and characteristics such as their wettability, suspensibility and particle size were assessed to select the optimized formulation.

• Liu Siyi(Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea)
• Dong Hwan Park(Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea)
• Jae Young Choi(Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea)
• Minghui Wang(Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea)
• Yeon Ho Je(Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea)