Part of a larger, ethnographic and interview-based study of experts and expert networks in the Argentina’s pesticide conflict, this paper investigates the relationship between two processes that unfolded simultaneously during 2000-2020: the development of the anti-spraying movement and the emergence of a new national scientific field on the health and environmental effects of pesticides. To understand how mobilized experts have shaped the scope and direction of Argentine pesticide research we employ domain-topic models to analyze a bibliographic corpus of scientific publications of Argentine researchers collected from the Web of Science Core Collection (1990-2023). We describe the thematic and relational structure of Argentine pesticide research and, subsequently, locate those research domains aligned with the interests of the anti-spraying movement to follow and characterize the participation of previously identified scientists allied with the movement. Our theoretical goal is to advance two novel theories within the Political Sociology of Science that propose a network based, symmetrical institutional analysis of the dynamics and impacts of expert activism.