U.S. National Arboretum

In honor of Arbor Day, I helped plant a tree at USDA’s National Arboretum on Friday morning, April 29. What made this unique from the thousands of similar tree plantings taking place nationwide today is that I was joined by a visiting delegation of Afghan agricultural experts. The delegation...

Today, I joined China’s Ambassador to the United States Zhang Yesui to sign a Memorandum of Understanding to construct a classical Chinese garden at the U.S. National Arboretum in Washington, D.C. This garden will illustrate the commitment our two countries have to horticulture, science and the arts...

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from USDA’s rich science and research portfolio. For nearly 60 years, a relentless Asian insect with a silly-sounding name--the hemlock woolly adelgid, or HWA--has chomped a...