Oct 17, 2022 · In this guide to identifying and treating maple bark diseases, we’ll cover the main threats you should keep an eye out for, how to treat these issues when they come up, and even how to prevent them from occurring in the first place. Here’s a quick peek at the potential bark issues that we’ll cover up ahead:

Jul 18, 2024 · The most common causes of white spots on bark are due to excess moisture, and root rot. It could also be due to powdery mildew, or even the oat wilt fungus. These issues would result in white dots that would be seen on the bark of the tree.

Aug 22, 2019 · Recently we had a question come to our mailbox about white spots on their trees’ bark. MLF Tree Expert Carl Mansfield replied: Your tree appears to have lichens growing on the outer bark.

Aug 27, 2022 · White spots on a maple tree can indicate an insect infestation or a fungal disease or may indicate no problem at all. 1. Cottony Maple Scale. An insect known as cottony maple scale can target silver maple trees ( A. saccharinum ), although other maple trees can also attract these small scales.

Apr 5, 2023 · White spots on the bark of a maple tree can be a sign of a fungal disease called “powdery mildew.” This disease is caused by the fungi in the genus Erysiphales, which can grow on the surface of the leaves, twigs, and branches of the tree.

May 4, 2024 · When the bark is coming off of a tree, and there are woodpecker holes, along with dying limbs, it usually means the tree is dying. Call your local Cooperative Extension office (your county office will have their number), and ask if they can help you identify what bug(s) are attacking your tree, and if the tree needs to come down for safety reasons.

Feb 22, 2021 · Bleeding canker - This maple tree disease causes the bark to appear wet and is often accompanied by some bark coming away from the maple tree trunk, especially lower down on the trunk of the tree. Basal canker - This maple fungus attacks the base of the tree and rots away the bark and wood beneath.

The white spots that you see are in fact thousands of tiny white bugs. They are often mistakenly identified by homeowners as mold or parts of the bark. Scale insects can be flat, small 1/16” long flecks, while others can be larger bumps almost the size of a ladybug, covering smaller twigs.

Oct 4, 2015 · Looks like the crustose lichen, Phlyctis argena, often mistaken for a disease. They are not harming your tree. From Hortsense: Lichens are primitive often found growing on the bark of older trees and shrubs. They are typically grayish, greenish, or …

Oct 28, 2024 · In this blog post, we’ll explore the common causes of white spots on tree bark, whether they are harmful, and how to address them. Properly understanding these signs can help you take action before any serious damage occurs.