[Submitted on 9 Sep 2026]
Title:Context-Aware Adaptive Pesticide Spraying for Agricultural Robots under Changing Weather and Terrain Using Vision-Language Models
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Abstract:Precision pesticide spraying is essential for optimizing application efficiency and ensuring uniform chemical distribution. Spraying performance is influenced by multiple factors, including environmental conditions such as temperature and wind speed, pesticide type, and the robot's capability to accurately perceive crops and target spray locations. Existing approaches predominantly emphasize crop detection and rely on predefined spraying parameters, whereas human operators dynamically adjust their spraying strategies by considering environmental conditions, region-specific crop characteristics, and the type of pesticide being applied. In this study, we propose a context-aware adaptive spraying framework based on Vision-Language Models (VLMs), which enables robots to leverage spatial reasoning and integrate information from multiple sources, including crop type, pesticide type, and weather data, to make adaptive and optimized spraying decisions. Subsequently, a trajectory-tracking controller based on Model Predictive Path Integral (MPPI) control is employed to ensure precise navigation and accurate spraying at crop locations. The comparative results demonstrate that the proposed method improves accuracy by at least 30% in detecting crop rows. In addition, the experimental evaluations conducted in two environments further demonstrate the robot's ability to flexibly adjust spraying volume and travel speed, while reducing pesticide drift.
Comments: Accepted for publication in Computers and Electronics in Agriculture
Subjects:
Robotics (cs.RO); Systems and Control (eess.SY)
Cite as: arXiv:2610.08807 [cs.RO]
(or arXiv:2610.08807v1 [cs.RO] for this version)
https://doi.org/10.48550/arXiv.2610.08807
arXiv-issued DOI via DataCite
Journal reference: Computers and Electronics in Agriculture, Volume 252 (2026) 112092
Related DOI:
https://doi.org/10.1016/j.compag.2026.112092
DOI(s) linking to related resources
Submission history
From: Cong-Thanh Vu [view email] [v1] Wed, 9 Sep 2026 16:05:37 UTC (14,721 KB)
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