In an Environmental Risk Analysis (ERA) benefits and risks of a biocontrol agent (BCA) or other beneficial organisms are assessed using criteria based on ecological determinants such as the potential and impact of establishment and dispersal, on known and new hosts (host range vs. specificity) and direct and indirect non-target effects. There is a wide variety of natural enemies used for biocontrol, each of which has its specific biological and ecological requirements. In regulatory requirements for regulation and registration of non-native agents, assessment of host specificity is one of the main criteria in evaluating risks. Establishing a generalist’s potential host range in a new area is one of the most challenging issues to be assessed prior to its introduction and release. Thus, generalist predators and parasitoids are often excluded a priori from being licensed. Here we will discuss several examples of different taxa with a generalist host range and show that each of them has specific requirements and as a result require a specific risk assessment of their own.

在环境风险分析（ERA）中，使用生化控制剂（BCA）或其他有益生物的收益和风险，基于生态决定因素（例如，建立和扩散对已知和新宿主的潜力和影响）的标准进行评估（宿主范围与（特异性）以及直接和间接的非目标效应。生物防治中有各种各样的天敌，每种天敌都有其特定的生物学和生态学要求。在对非本地代理进行监管和注册的监管要求中，评估宿主特异性是评估风险的主要标准之一。在新领域建立通才的潜在宿主范围是在引入和发布之前要评估的最具挑战性的问题之一。从而，通才捕食者和寄生动物通常被先验地排除在许可范围之外。在这里，我们将讨论具有通才宿主范围的不同分类单元的几个示例，并显示它们每个都有特定的要求，因此需要对它们自己进行特定的风险评估。