北京晨报记者杨玉峰报导，从北京市园林局科研所获悉：市园林局执法人员在检查朝阳区庭院绿化时，发现国槐的毁灭性害虫锈色粒肩天牛。这种天牛的寄主有槐树、柳树、黄檀、三叉蕨等植物，它们在树干内繁殖、蛀食，使树皮脱落，生长缓慢，甚至死亡。据介绍，锈色粒肩天牛在国内 Beijing Morning Post reporter Yang Yufeng reported from the Beijing Municipal Bureau of Parks and Science Institute was informed that: Municipal Gardens Bureau law enforcement officers in the inspection Chaoyang District Court greening, the locust pests found in the pests of rust pests rusty bullhead. The host of this beetle locust tree, willow, yellow sandalwood, trigeminal fern and other plants, which breed in the trunk, eaten food, the bark off, slow growth, and even death. According to reports, rust-shouldered terrestrial cattle in the country