Stink Bug Build-Up: Aggregation Lures for Early Warning
July is a practical monitoring window for stink-bug programs in the Northern Hemisphere. Brown marmorated stink bug (*Halyomorpha halys*) is an invasive plant-health pest associated with fruit, vegetable, field, and ornamental hosts, and seasonal movement into crops can make early field signals more valuable than reactive scouting after damage appears. This seasonal brief focuses on brown marmorated stink bug and southern green stink bug (*Nezara viridula*) programs where aggregation pheromone traps are used for detection, population tracking, and mass-trapping support. The goal is not an eradication claim. The goal is to help growers and IPM teams know when pressure is building, where activity is concentrated, and whether local control decisions should intensify.
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