Aphids will suck the tree's sap and damage the leaves, aided by ants who are all too happy to see your tree's aphid population — and the resulting supply of honeydew — boom. If this sounds familiar, ...

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 ...

CORVALLIS — It’s the time of year when fruit trees are on the minds of beginning and experienced backyard enthusiasts. More and more homeowners are adding fruit trees to their landscape and now’s the ...