When mushrooms are located near the bottom of your tree, it’s a clear sign that there’s a problem. Most fungus growing at the base of a tree indicates advanced interior decay.
As we enter spring time you may have noticed mushrooms growing around trees in your yard. This increase in mushrooms can be a byproduct of the rain we’ve endured in the past few weeks. If you have mushrooms growing at the base of your tree it can be worrisome. Mushrooms can be a tell tale sign of root rot, heart rot, and interior decay. When these symptoms are left untreated it can cause your tree to uproot, snap and come falling down on your or your neighbor’s property. Not all mushrooms are bad so it’s important to be able to recognize mushrooms that are bad for your tree.
A mushroom is a type of fungus. When fungus is connected to a tree, it’s often referred to as a root fungus or “mycorrhizae”. Root fungus often sprouts large mushrooms along the base of the tree. You can expect to find them growing on trees like beeches, ironwood, eucalyptus, firs, pines, alders, and oaks.
When mushrooms are located near the bottom of your tree it’s a clear sign that there’s a problem. Most fungus growing at the base of a tree indicates advanced interior decay.
Chicken of the Woods is a sign of brown heart rot. Bark wounds usually caused by trauma to the tree provide an easy entry point for the fungus as well as dead branches. This mushroom will decay your tree by hollowing out the center. Trees inflicted with chicken of the woods will likely to snap or break in high wind conditions. Chicken of the woods are yellow to orangish fan-shaped mushrooms growing in stacks.
INDICATION - HEART ROT
AT RISK TREES: Acacia, Ash, Beech, Birch, Cherry, Chestnut, Elm, Eucalyptus, Fir, Hackberry, Black Locust, Honey Locust, Maple, Oak, Virginia Pine, Poplar, Spruce, Tulip, Walnut, and Yew.
Ganoderma enters the tree through bark wounds. This mushroom will cause decay to the roots and trunk of the infected tree. Oaks and maples are especially susceptible. Ganoderma mushrooms are brown on the top and white underneath, small semi-circular mushrooms growing at the bottom of the tree.
INDICATION - TRUNK ROT & ROOT ROT
AT RISK TREES: Acacia, Alder, Apple, Ash, Birch, Boxwood, Cherry, Citrus, Elm, Eucalyptus, Fir, Hackberry, Black Locust, Honey Locust, Magnolia, Maple, Mulberry, Oak, Peach, Pine, Poplar, Redbud, Spruce, Sweet Gum, Sycamore, Tulip, and Willow
Honey fungus is a mushroom that grows at tree’s roots. This mushroom is a clear sign of root rot. These mushrooms are a dark yellowish color that appear in grouped together around the bottom of your tree’s roots.
INDICATION - ROOT ROT
AT RISK TREES: Oak, Birch, Fruit Tree
When infected with a tree fungus your tree or shrub can never be fully cured, although it can be treated. We will recommend a plan to suppress the tree fungus. This will stop the disease from getting worse and to restore your tree’s health and strength. If the fungus is too far developed, we may recommend removing the tree/shrub completely.
If you already have mushrooms growing on your tree it’s best to have us come identify it. We will be able to let you know if the fungus is harmful and be able to recommend appropriate treatments.
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Expires 12/31/2023
