Manaaki Whenua - Landcare Research, Private Bag 92170, Auckland, New Zealand.
Centre for Biological Control, Department of Zoology and Entomology, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa.
Curr Opin Insect Sci. 2020 Apr;38:79-83. doi: 10.1016/j.cois.2020.02.002. Epub 2020 Feb 27.
Biocontrol of invasive alien weeds has produced great benefits, but concerns over undesirable impacts on non-target plants and/or indirect interactions between biocontrol agents and other biota impede the implementation of biocontrol in some countries. Although great strides have been made, continuing uncertainties predicting the realized host range of candidate agents is probably resulting in some being erroneously rejected due to overestimation of risk. Further refinement of host-range testing protocols is therefore desirable. Indirect interactions are inherently harder to predict, and the risk of both direct and indirect non-target impacts may change over time due to biocontrol agents evolving or expanding their range under climate change. Future research directions to better understand the risk of non-target impacts over time are discussed.
生物防治入侵外来杂草已经产生了巨大的效益，但对非目标植物产生不良影响和/或生物防治剂与其他生物区系之间的间接相互作用的担忧，阻碍了一些国家实施生物防治。尽管已经取得了巨大的进展，但由于对风险的高估，继续预测候选生物防治剂的实际宿主范围的不确定性可能导致一些生物防治剂被错误地拒绝。因此，需要进一步改进宿主范围测试方案。间接相互作用更难预测，而且由于生物防治剂在气候变化下进化或扩大其范围，直接和间接的非目标影响的风险可能随时间而变化。讨论了未来研究方向，以更好地了解随着时间的推移非目标影响的风险。
