Excessive pesticide use by farmers is a critical issue influenced by psychological, behavioural, socioeconomic and regulatory factors. This study employs a bibliometric analysis and systematic review to assess key factors driving excessive pesticide use, focusing on research trends and behavioural influences. A total of 43 peer-reviewed articles from the Scopus database (2000-2024) were selected using PRISMA methodology, based on relevance to psychological and behavioural factors influencing pesticide use. Findings indicate that peer influence, farmers’ risk perceptions, financial constraints and limited awareness of sustainable alternatives like Integrated Pest Management (IPM) contribute significantly to pesticide overuse. Moreover, reliance on chemical pesticides, psychological stress from market uncertainties and risk-averse decision-making further contribute to overuse, highlighting the need for targeted interventions. Bibliometric analysis highlights a fragmented research landscape with limited interdisciplinary collaboration. China emerges as a leading contributor, demonstrating a strong national research focus with a significant number of studies conducted by Chinese researchers and institutions, while other countries show varying levels of cooperative engagement. This study underscores the importance of enhancing farmers’ awareness of non-chemical pest control methods, strengthening regulatory frameworks and fostering community-led initiatives. Future research should prioritise the exploration of education, economic conditions and social norms to better understand their impact on pesticide use behaviours. These insights aim to inform policy and interventions that promote sustainable pest management while balancing agricultural productivity with environmental and public health priorities.