According to Washington State University, these aphids aren’t a danger to us and don’t damage their host trees too badly either. If aphids come for your ash tree this fall, you might see some ...

Ash trees were attacked viciously by ash aphids. Homeowners often didn’t notice the damage until the leaves were tightly curled, protecting the aphids from control efforts. ...

Their swarms consist mostly of females migrating from the roots of Douglas fir trees to ash trees where they’ll lay their eggs, Zack said. “While some aphid species damage plants and trees ...

Climate, poor irrigation, lilac ash borers, anthracnose, leaf curl aphids and other issues also affect true ash trees (genus Fraxinus) with varying degrees of destructiveness.

The smoky-winged ash aphids have spent a flightless summer sucking up root juice from conifer trees. Now, “clouds and clouds and clouds” of bugs are flying to lay eggs in the bark of ash trees ...

There’s a lot to love about mountain ash, a delightful native tree that fits easily into urban and suburban landscapes. It can be grown as a small single-trunk tree or with mult ...

Salem crews will soon begin injecting city-owned ash trees with an insecticide to protect them from the emerald ash borer.

MISSOULA, Mont. — During the fall, woolly aphids start to appear on local trees. The insects are not harmful to trees, but if you find yourself put off by the blue and white bugs you can wash ...