Tree invasions are increasing globally, causing major problems for biodiversity, ecosystem services and human well-being. In South America, conifer invasions occur across many ecosystems and while numerous studies address the ecological consequences of these invasions, little is known about social perceptions and people's attitudes toward their control. The social perceptions on the effect of invasive conifers can include recreational, cultural and conservation dimensions. This study, conducted in the Malalcahuello National Reserve, aims to assess visitor's perception about invasive pines (Pinus spp.) and their effects on the endangered Araucaria araucana forests and determine their willingness to pay for pine control. We used a questionnaire to survey visitors to the reserve in both winter and summer (n = 138 for each season). When confronted with six images of araucaria and pine forests with and without snow, visitors consistently preferred landscapes without pines and disliked those completely dominated by pines the most. Almost half, 46.5%, of the visitors expressed their willingness to pay (WTP) for pine control and after given a brief explanation about pine impacts, this number rose to 79%. Visitors who said they were unwilling to pay argue ethical, aesthetic and pragmatic considerations relating closely to a number of social value systems and beliefs. Our study shows that there is a high variation in how people assess the threat of invasive pine species in natural areas, but education even in a very brief format can help to increase awareness of the problem and build social and financial support for its control.

全球树木入侵正在增加，给生物多样性，生态系统服务和人类福祉造成重大问题。在南美，针叶树的入侵发生在许多生态系统中，尽管许多研究都针对这些入侵的生态后果，但人们对社会观念和人们对其控制的态度知之甚少。关于针叶树的影响的社会认知可以包括娱乐，文化和保护方面。这项研究是在Malalcahuello国家自然保护区进行的，旨在评估访客对侵入性松树（Pinus spp 。）及其对濒危南洋杉Araucaria的影响的感知森林并确定他们愿意为控制松树付出的代价。我们使用问卷调查了冬季和夏季的游客（每个季节n = 138）。当面对六幅有或没有积雪的棕褐色和松树林的图像时，游客始终喜欢没有松树的风景，而最不喜欢完全由松树为主的风景。将近46.5％的访客表示愿意为松树控制支付费用（WTP），并在简要解释了松木的影响后，这一数字上升到79％。表示不愿付费的访问者在道德，审美和务实方面都提出了与许多社会价值体系和信念密切相关的考虑。我们的研究表明，人们对自然区域中的侵入性松树物种的威胁进行评估的方式存在很大差异，