Scoring disease pressure across hundreds of plots by eye is slow and drifts between raters and days. By the time a full campaign is walked, the epidemic has already moved, and the notation reflects a moving target rather than a fixed point in time.
Aerial imaging with PhenoScale captures the whole trial in a single flight. Vegetation indices, green-cover fraction and senescence dynamics are extracted per plot by Hiphen Intelligence, giving a consistent plant-health signal at both image and plot level on every acquisition date.
Stacked over the season, these indices reconstruct the epidemic curve for each plot — enabling area-under-the-curve resistance metrics, objective treatment comparisons and decisions grounded in continuous data rather than a single visual snapshot.