A snapshot of plant diseases

A camera that measures photosynthesis in the crop is one of the cornerstones of a sophisticated Dutch system of monitoring and disease-control in glasshouses.

The automated camera, which moves around the greenhouse observing the plants, reveals if they are under stress by detecting a reduction in photosynthetic activity.

A DNA test measuring the slightest traces of pathogens that damage plants, and a precision spray system that only affects the plant and not the surrounding air, are also part of the Gezonde Kas (healthy greenhouse) project at Wageningen University.