[Objectives] To explore the effects of different pesticides on termite control in four villages of Zhejiang Province. [Methods] Based on the investigation of termite damage to trees in Lijiakeng Village, Longmen Ancie...[Objectives] To explore the effects of different pesticides on termite control in four villages of Zhejiang Province. [Methods] Based on the investigation of termite damage to trees in Lijiakeng Village, Longmen Ancient Town, Luobu Ancient Town and Huanglin Village in Zhejiang Province, the indoor toxicity test of powder and bait was conducted to analyze the termite control effect of different agents. [Results] The experiment showed that 5% Fipronil powder was relatively better than 4.8% Imidacloprid powder, and 1.3% Fipronil was better than 2.5% Hexaflumuron. [Conclusions] It was found that the termite bait station combined with powder spraying and baiting has high social value for termite control in rural areas.展开更多
为了提高电动机的控制性能，用高性能微处理器DSP（Digital Signal Processor）和IPM（Intelligent Power Module）对已有的模拟控制系统进行了改进。系统由DSP最小系统、智能功率驱动模块、隔离模块等组成，用DSP汇编语言编程。与现有...为了提高电动机的控制性能，用高性能微处理器DSP（Digital Signal Processor）和IPM（Intelligent Power Module）对已有的模拟控制系统进行了改进。系统由DSP最小系统、智能功率驱动模块、隔离模块等组成，用DSP汇编语言编程。与现有的模拟控制电路相比，其结构简单。实验结果表明，系统调速范围可达到10～1000r／min，有较宽的调速范围。展开更多
白蚁是一种古老的社会性害虫,主要以植物或木材的纤维素及半纤维素为食,对木结构建筑有着极大的危害。木结构古建筑是人类历史发展的文化沉淀和智慧的结晶,保护好木结构古建筑不受白蚁危害有着极大的现实意义。在白蚁防治的诸多方法中,...白蚁是一种古老的社会性害虫,主要以植物或木材的纤维素及半纤维素为食,对木结构建筑有着极大的危害。木结构古建筑是人类历史发展的文化沉淀和智慧的结晶,保护好木结构古建筑不受白蚁危害有着极大的现实意义。在白蚁防治的诸多方法中,目前最受人青睐的是白蚁的综合防治技术,从有害生物综合防治(Integrated Pest Management,简称IPM)原理发展而来,也称为白蚁防治的IPM策略。文章通过对白蚁防治IPM技术的研究和调查,具体分析了白蚁种类及源头调查、物理屏障、土壤屏障、木材处理、监测—诱杀技术等一系列技术应用于木结构古建筑白蚁防治中的实施策略,以期推动白蚁防治IPM技术在古建筑保护中的使用,将白蚁治理的经济阈值控制到最低甚至为零,为木结构古建筑白蚁防治提供一些可参考的建议。展开更多
基金Supported by the Soft Science Fund Project of Ningbo Science and Technology Bureau, China (2021R009).
文摘[Objectives] To explore the effects of different pesticides on termite control in four villages of Zhejiang Province. [Methods] Based on the investigation of termite damage to trees in Lijiakeng Village, Longmen Ancient Town, Luobu Ancient Town and Huanglin Village in Zhejiang Province, the indoor toxicity test of powder and bait was conducted to analyze the termite control effect of different agents. [Results] The experiment showed that 5% Fipronil powder was relatively better than 4.8% Imidacloprid powder, and 1.3% Fipronil was better than 2.5% Hexaflumuron. [Conclusions] It was found that the termite bait station combined with powder spraying and baiting has high social value for termite control in rural areas.
文摘为了提高电动机的控制性能，用高性能微处理器DSP（Digital Signal Processor）和IPM（Intelligent Power Module）对已有的模拟控制系统进行了改进。系统由DSP最小系统、智能功率驱动模块、隔离模块等组成，用DSP汇编语言编程。与现有的模拟控制电路相比，其结构简单。实验结果表明，系统调速范围可达到10～1000r／min，有较宽的调速范围。
文摘白蚁是一种古老的社会性害虫,主要以植物或木材的纤维素及半纤维素为食,对木结构建筑有着极大的危害。木结构古建筑是人类历史发展的文化沉淀和智慧的结晶,保护好木结构古建筑不受白蚁危害有着极大的现实意义。在白蚁防治的诸多方法中,目前最受人青睐的是白蚁的综合防治技术,从有害生物综合防治(Integrated Pest Management,简称IPM)原理发展而来,也称为白蚁防治的IPM策略。文章通过对白蚁防治IPM技术的研究和调查,具体分析了白蚁种类及源头调查、物理屏障、土壤屏障、木材处理、监测—诱杀技术等一系列技术应用于木结构古建筑白蚁防治中的实施策略,以期推动白蚁防治IPM技术在古建筑保护中的使用,将白蚁治理的经济阈值控制到最低甚至为零,为木结构古建筑白蚁防治提供一些可参考的建议。
