Problem plants

Problem plants, such as earth almond grass, can cause considerable damage to agricultural land and are difficult to combat. Since the earth almond grass is often carried away, it is assumed that it can be found on the entire cultivated area. Further information on the topic can be found at www.weu.be.ch/en/start/themen/landwirtschaft/pflanzenschutz (https://www.weu.be.ch/en/start/themen/landwirtschaft/pflanzenschutz.html) and www.erdmandelgras.ch/en (https://erdmandelgras.ch/en/). The distribution of tigernut grass throughout Switzerland can be seen in Infoflora's Neophyte Field Book. obs.infoflora.ch/app/neophytes/en/index.html (https://obs.infoflora.ch/app/neophytes/en/index.html).有害杂草（如地杏仁草（earth almond grass））可对农田造成严重破坏，且防治难度极高。鉴于该草种常随农事活动或相关介质扩散传播，因此推测其可遍布所有耕作区域。有关该主题的更多详细资料，可访问以下链接：www.weu.be.ch/en/start/themen/landwirtschaft/pflanzenschutz（https://www.weu.be.ch/en/start/themen/landwirtschaft/pflanzenschutz.html）与www.erdmandelgras.ch/en（https://erdmandelgras.ch/en/）。油莎草（tigernut grass）在瑞士全境的分布情况，可通过瑞士植物信息库（Infoflora）的《归化植物野外手册》（Neophyte Field Book）查询，具体访问地址为：obs.infoflora.ch/app/neophytes/en/index.html（https://obs.infoflora.ch/app/neophytes/en/index.html）。