Crapemyrtle bark scale (CMBS; Acanthococcus lagerstroemiae) is an exotic pest species that causes aesthetic and economic damage to crapemyrtles and poses potential threats to other horticultural crops in the United States. Although previous studies reported the infestation of CMBS on several alternative hosts across multiple families in Asia, its potential threats to other documented alternative hosts remain elusive and yet to be confirmed. In this study, feeding preference studies of CMBS were conducted on forty-nine plant species and cultivars in 2016 and 2019, in order to gain insight into the expansion of CMBS distribution in the United States, as well as other regions of the world. The infestations of CMBS were confirmed on apple (Malus domestica), Chaenomeles speciosa, Disopyros rhombifolia, Heimia salicifolia, Lagerstroemia ‘Spiced Plum’, M. angustifolia, and twelve out of thirty-five pomegranate cultivars. However, the levels of CMBS infestation on these test plant hosts in this study is very low compared to Lagerstroemia, and may not cause significant damage. No sign of CMBS infestation was observed on Rubus ‘Arapaho’, R. ‘Navaho’, R. idaeus ‘Dorman Red’, R. fruticosus, B. microphylla var. koreana × B. sempervirens, B. harlandii, or D. virginiana.

中文翻译：

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紫薇树皮鳞片（大棘球菌）对不同物种的取食偏好。


桂花树皮鳞片（CMBS； Acanthococcus lagerstroemiae ）是一种外来害虫物种，会对桂花树造成美观和经济损害，并对美国的其他园艺作物构成潜在威胁。尽管之前的研究报道了 CMBS 在亚洲多个家庭的几个替代宿主上的感染，但其对其他记录在案的替代宿主的潜在威胁仍然难以捉摸，尚未得到证实。在这项研究中，2016 年和 2019 年对 49 个植物物种和栽培品种进行了 CMBS 的取食偏好研究，以深入了解 CMBS 在美国以及世界其他地区的分布扩展。苹果 ( Malus Domestica )、木瓜(Chaenomeles speciosa )、菱叶 Disopyros rhombifolia 、 Heimia salicifolia、紫薇'Spiced Plum'、 M. angustifolia以及 35 个石榴品种中的 12 个品种均受到 CMBS 的侵染。然而，与紫薇相比，本研究中这些测试植物宿主的 CMBS 侵染水平非常低，可能不会造成重大损害。在悬钩子'Arapaho'、 R. 'Navaho'、 R. idaeus 'Dorman Red'、 R. fruticosus和B. microphylla var. 上未观察到 CMBS 侵染的迹象。 koreana × B. sempervirens 、 B. harlandii或D. virginiana 。