Cotton Jassid: What Growers Must Know

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 planting dates and regions • first-spray urgency and recovery limits • effective modes of action and rotation needs • overwintering risks and alternate hosts near fields • variety differences and early resistance prospects • 2026 readiness: scout from day one and avoid overreacting • finishing green to 20 percent open under late pressure If you have questions about cotton jassid management in your area, reach out to your local Extension specialist or county agent for the latest recommendations