Add Yahoo as a preferred source to see more of our stories on Google. clarst5 via Shutterstock We love the vibrant colors of maple trees in the fall. These deciduous beauties bring not only great ...

Q. My maple tree has black spots on the leaves that just appeared recently. Should I be concerned about this? What should I do? A. Sometimes wet conditions earlier in the season can cause problems ...

Diseases are among the major causes of tree mortality in both forests and urban areas. New diseases are continually being introduced, and pathogens are continually jumping to new hosts, threatening ...

Sugar maples ( Acer saccharum) are large, hardy, deciduous trees renowned for their vibrant yellow, orange, and red fall colors and for their syrup production. Although they are susceptible to some ...

Our often-wet springs bring with them the perfect conditions for many plant diseases. While moist weather can create conditions for diseases on many plants, sick trees in the landscape tend to draw ...

The list of diseases attacking trees in the Pacific Northwest grows every year. A pathogen new to Western Washington brings an added concern: It can injure people. A research project using citizen ...