How Field Scouting Improves Input Decisions and Reduces Waste A farmer usually knows when something is not right in the field. The crop looks weaker than expected. Leaves start yellowing. Insects appear on the underside of leaves. Some patches grow unevenly. A disease spot appears after a humid week. The first reaction is often quick: apply a fertilizer, spray a pesticide, add nutrition, or ask the nearest input dealer for a solution. But here is the real question: is the cro