Poaia-do-campo
Spermacoce latifolia
Planta invasora bastante frequente em lavouras anuais, cafezais, pomares, pastagens cultivadas, florestamentos com eucalipto e terrenos baldios. Apresenta nítida preferência por solos ácidos. Há referências que a espécie serve de abrigo para alguns nematóides, como por exemplo os do gênero Meloidogyne. A introdução do cultivo do solo seguido da correção da fertilidade e da acidez causam uma diminuição sensível dessa infestante.
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