Crop disease detection (field-robust)

EfficientNet-B0 (FP32 ONNX, CPU), checkpoint runs/e7/efficientnet_b0/seed2/best.pt, chosen by accuracy on PlantDoc field validation photos. Covers 27 crop/disease classes shared by PlantVillage and PlantDoc; anything else is forced into one of them. Expect about 54% top-1 accuracy on field photos (PlantDoc test), so wrong or 'unsure' answers are normal. Below 50% confidence it answers 'unsure'. Research demo, not a substitute for an agronomist.