Genetic Engineering
Weyerhaeuser operates seed orchards where we use the traditional techniques of selection
and cross-pollination to produce seeds that grow superior trees. We grow seedlings
in our own nurseries as well as purchase seedlings from others. We also use varietal
seedlings, often referred to as clones. These varietal seedlings have genes that
are all from the natural population of the species. Use of varietal seedlings is
commonplace in the Southern Hemisphere and is increasing in the U.S.
Weyerhaeuser does not grow genetically engineered trees. Genetically engineered
plants are regulated by law, and no genetically engineered forest tree has been
approved for commercial use in the countries where we operate. We support continued scientific
research to understand the benefits and risks, and to ensure safeguards are in place
if and when genetic engineering is used in commercial forestry.
Last updated June 17, 2010.