Cedars are low-maintenance conifers popular for adding winter interest and acting as windbreaker privacy hedges. Given cedars ...

While many trees in the southern range were killed by Phytophthora root rot (PRR), the chestnut blight leaves roots intact, so many chestnuts have been surviving by growing back from the roots ...

Chocolate brown is a defining color for Phythophthora root rot (PRR), and it’s showing up this season in fields across Iowa and other parts of the Midwest. “We have Phytophthora every year ...

There are nearly 400 Christmas tree farms statewide. Chastagner and his research team are looking into conifers with resistance to Phytophthora root rot. Courtesy of Washington State University ...

But before the blight, Phytophthora cinnamomi — root rot — killed many southern trees, likely spreading through North America in the 1700s. The parasite lives underground but can’t ...

In the last five years about 56,000 larch trees have been felled in the Forest of Dean in Gloucestershire due to Phytophthora Ramorum. Forest managers said visitors can do their part in helping to ...