Managing plant invasions that pose risk to protected areas: a preventative approach
DOI:
https://doi.org/10.67154/BIN.v9.n2.2026.56Palavras-chave:
invasão biológica, restinga, controle químico, custos de controle, plantas exóticas invasorasResumo
Plantas exóticas invasoras nas imediações de unidades de conservação municipais foram eliminadas, ao mesmo tempo que permitiram definir métodos de controle e registrar custos do manejo. Métodos de controle foram definidos para as cinco espécies de maior risco para a restinga, todas introduzidas como plantas ornamentais nas proximidades. Os custos de controle foram estimados a partir do investimento total dividido pelo número de horas trabalhadas e subdivididos em categorias, com registros detalhados a fim de prover futura referência à gestão municipal. Diversos testes de controle foram realizados para Asparagus densiflorus, com melhores resultados obtidos com uma solução de Metsulfuron Metil 0.15g/l + 1% Glifosato + 15 gotas de penetrante + 20 gotas de corante diluídos em água, e para Furcraea foetida, com alta eficácia obtida com o uso de solução de Triclopir em diluição de 2% em água com corante, aplicada na base das folhas e do broto apical. O mesmo método e a mesma solução foram aplicados com sucesso a tocos e na base do broto apical de Yucca filamentosa. Asparagus setaceus foi altamente suscetível a uma solução de 1% Glifosato diluído em água com corante. O custo total do controle foi de US$ 51.894,00, ou US$ 23,25 por hora de trabalho. Mecanismos de financiamento como a política pública de compensação ambiental aplicada a este trabalho podem servir de modelo para adoção por outros municípios e estados brasileiros, assim como por outros países.
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Copyright (c) 2026 Sílvia Ziller, Alexandre D. Schmidt, Christopher H. Graves, Guilherme Ritzmann, Lucas Felizardo, Brisa Marciniak, Gabriela Moraes da Silva, Mariana Adami Borgert, Michele S. Dechoum
Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
