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首页> 外文期刊>Proceedings of the Entomological Society of Washington >Introduced leaf beetles of the maritime provinces, 6: The common Asparagus beetle, Crioceris asparagi (Linnaeus), and the twelve-spotted Asparagus beetle, Crioceris duodecimpunctata (Linnaeus) (Coleoptera : Chrysomelidae)
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Introduced leaf beetles of the maritime provinces, 6: The common Asparagus beetle, Crioceris asparagi (Linnaeus), and the twelve-spotted Asparagus beetle, Crioceris duodecimpunctata (Linnaeus) (Coleoptera : Chrysomelidae)

机译：引入了海洋省的叶甲虫，6种：常见的芦笋甲虫，芦笋Cri（Cinoceris asparagi（Linnaeus）），以及十二斑点的芦笋甲虫，Crioceris duodecimpuncttata（Linnaeus）（鞘翅目：金眼科）

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摘要

The common asparagus beetle, Crioceris asparagi (Linnaeus) and the twelve-spotted asparagus beetle, Crioceris duodecimpunctata (Linnaeus) are introduced Palearctic leaf beetles that feed exclusively on asparagus. The introduction history of these species in North America is reviewed and their dispersal to and distribution in the Maritime Provinces of Canada are described. Both species were first reported in Canada in 1899 in asparagus production areas in Queenston, Ontario, and other parts of the Niagara Peninsula where they caused serious crop damage. However, we discovered that both species were already found around Quebec City 22 years earlier. Populations now established in the Maritime Provinces of Canada probably originated from southwestern Ontario where most commercial asparagus production in Canada began and now occurs. Crioceris asparagi and C. duodecimpunctata spread steadily throughout eastern Canada by adult flight dispersal abetted by wind, by the dissemination of seeds by birds, and by commercial movement of root crowns and spears of asparagus. Asparagus escaped from cultivation, growing along transportation corridors (such as railway tracks, power utility right-of-ways and roads) and in vacant lands, which facilitated the spread and establishment of C. asparagi and C. duodecimpunctata throughout North America. Now, both these adventive pest species occur wherever asparagus is grown. Both C. asparagi and C duodecimpunctata are confirmed to occur in New Brunswick and Nova Scotia, but not Newfoundland and Labrador. However, C duodecimpunctata is newly recorded from Prince Edward Island. These introduced beetles are not regulated by Canada or by the U.S.A., and they are readily controlled at economically acceptable damage thresholds.
机译：引入了常见的芦笋甲虫，天竺葵（Linnaeus）和十二斑芦笋甲虫（Crinocers duodecimpuncttata）（Linnaeus），它们是仅以芦笋为食的古北叶甲虫。回顾了这些物种在北美的传入历史，并描述了它们在加拿大海事省的分布和分布。这两个物种于1899年在加拿大首次被报道在安大略省皇后镇和尼亚加拉半岛其他地区的芦笋产区，对作物造成了严重破坏。但是，我们发现22年前在魁北克市附近已经发现了这两个物种。目前在加拿大海事省建立的种群可能起源于安大略省西南部，加拿大大部分商业芦笋生产都在此开始，并且现在已经发生。通过风吹诱使成年飞行扩散，鸟类散播种子以及芦笋的根冠和长矛商业化活动，Cracoeris asparagi和C. duodecimpunctata稳定地分布在加拿大东部。芦笋从耕种中逃脱出来，在运输走廊（如铁轨，电力公司通行权和道路）和空地上生长，这促进了芦笋衣​​原体和十二指肠虫在整个北美的传播和建立。现在，这两种外来有害生物都在芦笋生长的任何地方发生。证实天冬梭菌和十二指肠梭菌均发生在新不伦瑞克省和新斯科舍省，但纽芬兰省和拉布拉多省均未发现。但是，C duodecimpunctata是爱德华王子岛的新记录。这些引入的甲虫不受加拿大或美国的监管，并且很容易将它们控制在经济上可接受的损害阈值上。

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