Most crop losses are named wrongly on the first day, and the wrong name leads to the wrong action. Describing what you see before deciding what it is costs nothing.
- By the end you can describe a problem in five facts: what, where, how many, since when, what changed.
- By the end you can tell a spreading pattern from a uniform or localised one.
- By the end you can separate a mushroom sign from a room sign and count flies against a published threshold.