Jonnie applies his expertise in agriculture, geospatial analysis, and environmental modeling to manage agrochemical fate and exposure modeling studies at Stone. He develops advanced scripts to streamline large-scale data acquisition, customize models, and optimize spatial analysis, database management, and data visualization using multiple programming languages. His recent research includes creating software to map the spatial overlap of threatened and endangered species with pesticide usage and developing 3D models to simulate air flow and spray drift interception in plant canopies.