Unless you are intent on making your own maple syrup, you probably haven't given tree sap much thought. So, let's take a deeper dive into a tree's 'blood' or sap and the normal flow in the fall for ...

Pruning this sappy tree in early spring is basically an open invitation for destructive fungus and troublesome pests — here's ...

Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey Tree Expert Company in Menlo Park discuss a tree-related topic from general care and planting tips to how ...

Insects that drink sap and eat plant parts typically attack the leaves or fleshy portion of the tree, which generally does not kill the plant. Boring insects, on the other hand, bore into the main ...

Looking for a winter garden task? Pruning plants, shrubs, and trees can help improve growth and health. Here are some you ...

Invasive insect species have, in the past 20 years, replaced native insects as the "biggest problem" facing Wisconsin's trees, said Bill McNee, a forest health specialist at the Wisconsin Department ...

Q: I planted three Flowering Yoshino Cherry trees from pots about four years ago. Watered and fertilized the same for all these years. Two of the trees are doing okay. For some reason, one of the ...