We trace how the cotton jassid moved from scattered detections to a widespread, fast-moving threat and share what actually stopped yield losses. We explain scouting on the top leaves, the new one-per-leaf threshold, and why missing the first spray costs you the season. • biology, hosts and how hopperburn looks • rapid spread patterns and storm-assisted movement • where to scout on the plant and why leaf four matters • thresholds shifting from five to one per leaf • yield loss data across pla...