Lumber is an important product from trees. When two countries export goods to one another, international policies may exist to prevent the spread of destructive organisms that live in the lumber. For this reason, the scientists in this study studied heat-treating techniques to kill the pinewood nematodes in the lumber. This is the Spanish-language version of the article. Topics: Engineering and Forest Products, Exporting, Heat Treating, Lumber, Nematodes, Southern Pine, Timber Production.