When these insects have to be disinfested , non - chemical means will be considered before resorting to pesticides 如需杀灭，本署会先考虑不用化学剂的方法，如有需要才使用除害剂。
2.
When these insects have to be disinfested , non - chemical means will be considered before resorting to pesticides 如需杀灭，本署会先考虑不用化学剂的方法，如有需要才使用除害剂。
3.
Pests and nuisance causing animals are disinfested judiciously to avoid unnecessary disturbance to the ecological system 本署会以审慎的方法消灭虫鼠及有害的动物，以免不必要地扰乱生态环境。
4.
Pests and nuisance - causing animals are disinfested judiciously to avoid unnecessary disturbance to the ecological system 本署会以审慎的方法消灭虫鼠和有害的动物，以免不必要地扰乱生态环境。
5.
Pests and nuisance causing animals are disinfested judiciously to avoid unnecessary disturbance to the ecological system . non - chemical prevention and control 本署会以审慎的方法消灭虫鼠及有害的动物，以免不必要地扰乱生态环境。
6.
Pests and nuisance - causing animals are disinfested judiciously to avoid unnecessary disturbance to the ecological system . the control measures include a choice of physical , environmental , biological , legal or chemical methods 防治虫鼠的方法有很多种，包括物理、环境、生物、化学的方法或立例管制。
