Know how long your leaves stay wet, because that is when disease moves in.

Spray calendars treat every week the same. In reality, risk comes in bursts, set by how long the canopy stays wet. Without a measurement, growers either spray too often to be safe, or find out after symptoms appear.

Many fungal and bacterial diseases need a film of water on the leaf. How long a leaf stays wet, and at what temperature, is often more informative than rainfall or humidity alone.

Soilo Leaf is a sensor with a leaf-shaped sensing surface that sits in the canopy and reports whether the leaf surface is wet, together with temperature. Because it monitors continuously, you see the wet periods you would never witness: dew overnight, fog at dawn, or the hours after irrigation.

Leaf reports conditions; it does not diagnose disease. Its role is to feed disease-risk assessment, so spraying and scouting can be timed to the weather the crop actually experienced.

Measures leaf wetness and temperature at the sensor location. Disease risk is assessed by software from these readings; the sensor itself does not detect disease.