Paropsis charybdis (Coleoptera: Chrysomelidae) has been a major pest of Eucalyptus spp. since invading New Zealand from Australia over 100 years ago. Here, we report on the phenology, egg parasitism and defoliation levels of P. charybdis at two Eucalyptus nitens plantations in the central North Island of New Zealand and assess the establishment prospects and potential impact of a new biological control agent, the larval parasitoid Eadya daenerys. Field monitoring found that 90–100% of first generation P. charybdis eggs emerged, showing that the existing egg parasitoids Enoggera nassaui (Hymenoptera: Braconidae) and Neopolycystus insectifurax (Hymenoptera: Pteromalidae) are ineffective at controlling this generation. Further field monitoring revealed effective control of second generation eggs by E. nassaui and N. insectifurax despite the presence of Baeoanusia albifunicle (Hymenoptera: Encyrtidae), a hyperparasitoid of E. nassaui. Phenology data show that first generation P. charybdis larvae will likely be synchronous with the adult emergence of E. daenerys (Hymenoptera: Braconidae) the new larval endoparasitoid proposed to be introduced from Australia. Climate matching predicts E. daenerys could establish in all areas of New Zealand where P. charybdisimpacted Eucalyptus spp. plantations are grown. The addition of a larval endoparasitoid could significantly contribute to the suppression of P. charybdis by decreasing first generation larval survival.

中文翻译：

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为什么要引入寄生的拟南芥（Paropsis charybdisStål，1860年）（鞘翅目：金眼科）幼虫，有望增强新西兰对这种桉树害虫的生物防治。

帕里帕斯虫（Charopsis charybdis）（鞘翅目：金眼科）是桉树的主要害虫。自100多年前从澳大利亚入侵新西兰以来。在这里，我们报告了新西兰北岛中部两个桉树人工林的炭疽假单胞菌的物候，卵寄生和脱叶水平，并评估了一种新的生物防治剂幼虫类寄生虫Eadya daenerys的建立前景和潜在影响。。现场监测发现出现了90–100％的第一代Charybdis卵，这表明现有的卵寄生虫Enoggera nassaui（膜翅目：Braconidae）和Neopolycystus insectifurax（膜翅目：翼龙科）在控制这一世代方面无效。此外字段监测显示有效的控制的第二代鸡蛋由E. nassaui和N. insectifurax尽管存在Baeoanusia albifunicle（膜翅目：跳小蜂），的hyperparasitoid E. nassaui。物候数据显示，第一代夏枯草幼虫很可能与成年的E. daenerys（Hymenoptera：Braconidae）成年同步，拟从澳大利亚引进新的幼虫内寄生物。气候匹配预测，丹尼氏菌可在新西兰夏枯草影响的所有地区建立桉树属。种植人工林。幼虫内寄生物的添加可通过降低第一代幼虫存活率显着有助于抑制炭疽杆菌。