In this study P. parasitica was isolated in soils with a pH of between 4.7 and 5.5, whereas in soils with a pH between 6.6 and 6.8 this organism was not isolated; these results are similar to those reported by and .
En el presente estudio P. parasitica fue aislado en suelos con pH de 4.7 a 5.5, mientras que en suelos con pH entre 6.6 y 6.8 no se aisló este organismo, resultados similares a los reportados por y .