Davey Blog

Whether you're picking out a tree for your landscape or making a list for this season's to-dos, we have your tree care questions answered.

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Black Knot Fungus Must Credit Joseph Obrien Usda Forest Service Bugwoodorg
Insect & Disease Issues
How To Get Rid of Black Fungus on My Tree’s Trunk or Branches
Black fungus on your tree trunk or tree branches? Black knot disease is common in chokecherry trees and plum trees. Although you can eat plums from a tree with black knot, you should still contact an arborist to learn how to get rid of black knot on trees and how you can treat black knot fungus!
Kid Choosing Christmas Tree Davey Tree
Tree Selection Guide
10 Common Live Christmas Trees & Their Advantages
Want to know the best smelling Christmas tree types? Learn about the most common Christmas tree types and the advantages of each type of Christmas tree.
Moss Algae Lichen Green On Tree Branch Davey Tree
Plant Health Care
What Are These Green Spots on My Tree’s Trunk or Branches?
Do you have green fungus on tree branches or green spots on your tree bark? Learn more about tree bark fungus identification and treatment. Often, you’ll see moss, lichen, or algae. None of which hurt the tree, but learn how you can get rid of lichen (if you do it right).
Davey Tree Tent Caterpillars Oak Tree
Insect & Disease Issues
How to Get Rid of Spring Webworms or Eastern Tent Caterpillars
Spot spring webworms in your trees? Learn how harmful tent caterpillars are to trees and how to get rid of tent worms or tent caterpillars. You can usually remove them by hand and kill them by dropping them into water and dish soap. But if you have lots, use a tent caterpillar spray.
Tree Lichen Identification
Plant Health Care
What's This Green Stuff Growing On Trees And Rocks?
Lichen does not pose a threat to your tree’s health. It is completely harmless so there’s no real need to get rid of it. But if the sight of it bothers you, follow the steps in this post to remove it. We highly recommend to not use a pressure washer to remove lichen.
Dormant Pruning 600X400
5 Reasons to Prune During the Dormant Season
The dormant season temporarily slows tree growth, creating an ideal window to prune for current tree health and future tree growth.
Honey Fungus
Plant Health Care
What to Do About Mushrooms Growing at the Base of Trees
Have you noticed mushrooms growing around your tree's base or roots? It may be dangerous. Learn how to identify and manage honey fungus on your tree.
Winter Root Damage
Plant Health Care
Can Winter Root Damage Happen Without Snow? Protecting Tree Roots in Snowless Winters
Snow acts as nature’s insulation for tree roots — so what happens when winter arrives without it? Learn how bare soil affects tree survival, signs of winter root damage, and expert tips to protect your trees during snowless winters.
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