Invasive alien species are a growing threat globally that causes negative effects on the environment, economy and human health. Part of the solution is to involve the public to help reduce the spread. The aim of this study was to examine the public knowledge and to analyze people's reactions when they receive information about invasive species. Further I analyze the information dissemination method used by the county board of Västerbotten and examine whether there was any difference between the property owner’s responses depending on what type of invasive species they had on their property. A survey was designed to acquire information from property owners in Västerbotten county who had an information letter by the Swedish authorities in 2021 about invasive species on their property. The survey was sent to 123 property owners and the response rate was 49%. The survey didn’t show any significant difference between the property owner’s responses depending on what kind of invasive species they had. Results showed that the majority of the respondents considered the information letter helpful and a large percentage had taken action to combat the invasive species after receiving the letter. The results showed that the property owner's knowledge increased after receiving the information letter. In conclusion, the study shows that information letters are an effective method for property owners to take action and increase their knowledge of invasive species.