Some of the leaves on my serviceberry and hawthorn have an ugly black residue on them. When I looked more closely at the trees, I noticed some things that looked like little cotton balls here and ...

Your description sounds a lot like aphids that seem to be more prevalent this year. Aphids may be green, black, brown, red, pink, or some other color. They are pear-shaped, slow-moving and range in ...

Chanie Kirschner is a writer, advice columnist, and educator who has covered topics ranging from parenting to fashion to sustainability. Aphids are tiny, soft-bodied sap-sucking insects that can be ...

Dear Neil: Do you have any suggestions for saving my 150-year-old pear tree? I think it might have been hit by lightning some time back. There is a large hole at its base. The pears are quite good, ...

: I happened to notice the leaves on my apricot tree were shiny. A closer look showed that they are full of what appears to be aphids or some similar bug. My question is since the leaves will fall ...

Fruit trees, especially dwarf and antique varieties, have become increasingly popular over the past few years as more folks seek to grow their own food. By adding a fruit tree to your property, not ...

As Oregon gets hotter and drier due to climate change, tree-killing invasive pests that prefer warmer temperatures are thriving — endangering Sitka spruce along the coast, firs in the mountains and ...

Sticky shiny goop has started covering trees, dripping on anything underneath. Folks are calling to ask what this is. They are also noticing lots of ants on the plants. Are the ants causing this goo?

Rose aphids feed on the tender leaves, stems, and buds that appear on roses in the late spring. Learn how to prevent a large ...