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Why does the brown marmorated stink bug collect in large clusters?

April 26, 2017Brown bug Clusters collect large marmorated stink

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Why does the brown marmorated stink bug collect in large clusters?

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When a brown marmorated stink bug finds a site that is suitable for overwintering it releases a chemical called an aggregation pheromone. The aggregation pheromone is a scent that attracts other brown marmorated stink bugs to the area. The aggregation pheromone is not the same chemical that causes them to stink.