VeriField: in-scene negative sets, code, protocols and results for category-routed box verification in agricultural visual grounding

In-scene negative queries for the AgroVG agricultural visual grounding benchmark, with the code, pre-registered protocols, test-access log and result files of the study "VeriField: Category-Routed Box Verification for Rejecting In-Scene Absent Targets in Agricultural Visual Grounding". The negatives ask for a class that belongs to the scene type but is absent from the image: 316 test queries (203 pest, 113 crop/weed) and 2,158 development queries, in the AgroVG query format and checked against the image annotations. Images are not included; they are referenced by their AgroVG path. Negative sets, protocols and results: CC BY 4.0 (derived from AgroVG annotations, CC BY 4.0). Code: MIT.