Alternatives to chemical products based on Sodium Pentachlorofenate, which have had worldwide leadership as wood preservatives against staining agents are analized. However, these products have been subject of controversy, due to the danger they pose for forest workers because of their high toxicity. In order to analyze the utilization of other products, the Disk Method technique was used. The toxicity of seven fungicide products, which do not present clored fenols, was tested against the staining organism Ceratocystis pilifera (Fries) C. Moreau acting on Pinus Radiata D. Don. A total of seven fungicides were analyzed on concentrations recommended by manufacturers.Se analizan productos alternativos a los basados en fenoles clorados, que se utilizan actualmente como preservantes de la madera contra los agentes manchadores. Estos productos, clorados, han sido fuertemente cuestionados por el grado de peligro que presentan para el trabajador forestal debido a su alta toxicidad. Con el objeto de analizar posibilidades de utilización de otros productos, mediante una técnica de laboratorio denominada Método de los Discos, se pone a prueba la toxicidad de siete productos fungicidas que no presentan fenoles clorados en su formulación, contra el organismo manchador Ceratocystis pilifera (Fries) C. Moreau en madera de Pinus radiata D. Don. En total se analizaron siete productos en las concentraciones recomendadas por sus fabricantes.