The 18th Agrobiotechnology Talk Series ‘Strategy to Change Unsustainable Practices in Agrochemical Application: A Case in Southern China ’ was held online via zoom with a total of 44 participants attended. Prof. Kin-Che Lam, Adjunct Professor of The Chinese University of Hong Kong introduced and analyzed a World Bank funded project aiming at changing entrenched unsustainable practices in the application of fertilizers and pesticides.