To identify diseases in maple trees, examine the bark for cankers and lesions, check for signs of girdling roots and analyze the tree to see if verticillium wilt is present. The difficulty of the identification process depends on numerous factors, including the visibility of the symptoms.Continue Reading
The most common maple tree diseases come from fungus that causes cankers on the bark. Pink and black lesions are a sign of nectria cinnabarina. Nectria galligena can be identified by bark that looks like split and peeled paper. Eutypella looks similar to nectria galligena; however, it is thicker and more difficult to peel. Valsa cankers look like white or gray warts and grow in shallow recessions on young trees and branches. Steganosporium cankers look like a brittle, black layer covering previously diseased bark. Young maple trees may be affected by cryptosporiopsis cankers, which look as if the bark has been forcefully pushed into the trunk. Bleeding bark looks wet and may also peel. Rotting wood and bark at the base of the tree is often a sign of basal cankers.
Girdling roots are twisted and not able to deliver water and nutrients to the tree. Signs of girdling include a decrease in leaf size and brown borders surrounding the leaves. The limbs may also die completely.
Verticillium wilt occurs when fungus enters the root system. Signs of verticillium wilt include fading yellow, brown or green leaves and wilting branches. This often occurs on one side of the tree.
Types of maple trees can be identified by the shapes and sizes of their leaves, their bark and their winged seeds, which are called samaras. They can also be differentiated by the habitat where they're found, their mature height and their shape.Full Answer >
Tap maple trees for sap in middle to late winter, or from mid-January to March, when night temperatures are freezing, around 20 to 30 degrees Fahrenheit, and days are sunny and around 40 to 50 degrees Fahrenheit. If farmers tap too early, the holes may reseal themselves, producing no sap.Full Answer >
The Norwegian maple tree, also known as the Norway maple, has one characteristic that distinguishes it from other types of maple trees: When one of its leaf stems is broken, the stem exudes a white, milky sap. The Norwegian maple's leaves are shaped similar to those of a sugar maple, but the Norwegian maple's leaves are a darker green.Full Answer >
Transplanting established trees involves root pruning, digging the plant out while protecting the roots for transport and planting in the new location. The task may seem daunting, but proper planning and close attention to recommended procedures save time, reduce the amount of effort and increase the likelihood of success.Full Answer >