The last few years, ornamental pear tree leaves have been infected with a rust disease that caused numerous orange spots on their leaves. This disease is cedar-hawthorn rust and on ornamental pear it ...

OHIO, USA — Ohio is adding another tree to its invasive plant list and it's possible you have one or more in your yard or on your block. Starting in January 2023, the Callery Pear tree will join ...

Callery pear trees line a street in Kansas City, Missouri. This species, popular for its flowers, is a healthy part of nature in its native Asia. But it becomes highly invasive in North America, ...

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 ...