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Sleeper thistles in New Zealand: status and biocontrol potential

机译：睡眠蓟在新西兰：地位和生物控制潜力

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Globally, the thistle tribe, Cardueae (Asteraceae), contains approximately 2,500 species, of which at least 339 have weed status. In New Zealand, 63 of these are present, but only nine are recognised problems, with the remainder being potential threats or "sleeper weeds". To evaluate these potential threats, the 339 global thistle weeds were ranked from most to least important, based on an assigned Index of Weed Importance, and grouped into five weed importance categories: Extreme, High, Moderate, Low and Minor. Of the global species in these categories, 94%, 56%, 28%, 19% and 7%, respectively, are present in New Zealand, and mitigating the most serious potential threats would be prudent. An option is the novel use of classical biological control agents that specialise on the thistle tribe, rather than specific target species. This is feasible for New Zealand because in the tribe Cardueae there are no natives and few economically-valued exotic species.
机译：在全球范围内，蓟部落Cardueae（Ateraceae）含有大约2,500种物种，其中至少339种具有杂草状态。在新西兰，其中63个存在，但只有九个是公认的问题，其余部分是潜在的威胁或“睡眠杂草”。为了评估这些潜在的威胁，基于杂草重视的指定指数，339个全球蓟杂草被排名为最不重要的，并分为五种杂草重要性类别：极端，高，中等，低和次要。在这些类别中的全球物种中，新西兰分别存在94％，56％，28％，19％和7％，并减轻最严重的潜在威胁是谨慎的。一种选择是新颖的使用专门从事蓟部落的经典生物控制剂，而不是特定的目标物种。这对新西兰来说是可行的，因为在部落Cardueae中，没有本地人，有少数经济价值的异国情调。

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