A devastating pest that has killed tens of millions of oak trees in California was discovered for the first time in Minnesota, researchers announced this week. The “sudden oak death” pathogen, which ...

Fire blight, the disease caused by the bacterium Erwinia amylovora, can spread quickly from tree to tree. Once an outbreak ...

Ontario residents are being urged to hold off on pruning their oak trees until November to help stop the spread of a deadly, fast-moving fungus known as oak wilt. Oak wilt is caused by a fungal ...

But thanks in part to trees planted in areas where the two fungi don’t grow well, the American chestnut isn’t extinct. And efforts to revive it in its native range have continued, despite the long ...

In southern Italy, two varieties of olive trees, some infected with a disease called Xylella fastidiosa, a bacteria carried from tree to tree by a little bug, and some resisting the infection CHARLES ...

Dothistroma needle blight (DNB) is a serious foliar disease impacting a wide range of pine species throughout the globe. The disease is principally associated with the fungal pathogens Dothistroma ...

Each year, nearly 30 million Americans purchase a real tree for the holidays. Growing the perfect Christmas tree takes about seven years, during which farmers need to keep insects, fungal pathogens ...

Trees are important to the environmental health of cities through their capacity to improve air quality, provide cooling via shade and transpiration, and foster natural beauty. New research in ...

Microbes could help oak trees cope with environmental change. Publishing February 11 in the Cell Press journal Cell Host & ...

Gympie Mayor Glen Hartwig revealed on Friday the $20,000 live Christmas tree next to the Sound Bowls in the Nelson Reserve ...