Safeguarding your trees against pests is important to their health and longevity. Invasive species can wreak havoc by defoliating or infecting trees, and left untreated, can lead to loss of limbs and ...

A first-of-its-kind report shows more than 100 native species of trees in the lower 48 states are facing the threat of extinction due to invasive insects, diseases and climate change. A sweeping ...

As the Twin Cities fight against the infestation of an invasive beetle by removing Ash trees, new varieties of trees are being planted in their place. Since planting began on April 8, Minneapolis has ...

An invasive caterpillar species is posing a serious threat to a cherished native moth, even though the two never directly compete for food, according to new research from ecologists at the University ...

Insect-driven tree mortality is rising across Europe, according to an international study led by the Czech University of Life Sciences with participation of WSL. Conifers are hit harder, broadleaf ...