What is the green stuff growing on my trees?

Most of the time, in damp, shady areas you will spot a substance on the branches or trunk of a seemingly declining tree. This substance can be either lichen or moss.

What’s the difference between lichen and moss on trees?

Lichen

• A combination of fungi and algae

• Can be a range of colors including blue, green gray etc.

• Appears in thin flaky patches

Moss

• Always dark green

• Coarse texture

Does moss or lichen harm my tree?

Lichen does not harm trees, though it might seem that way because they are usually found on declining specimen. Actually, lichen just tends to thrive on unhealthy trees because when they are under stress, there are usually less leaves and branches, allowing more light to shine on the trunk and creating the perfect environment for lichen to take over.

How can I get rid of moss or lichen on my trees?

There is no pressing need to rid the tree of moss or lichen as it does no harm to your trees and actually can be beneficial to the environment by providing a food source for many birds and other animals. However, if you would still like to get rid of it, a fungicide called copper sulfate can be applied by an ISA certified Arborist to kill it.

If you have moss or lichen on your trees, it is best to have them assessed properly by one of our ISA certified Arborists to rule out any potential tree disease, tree decay or pests that could be causing stress on the tree to begin with. Use the link below to be connected with an ISA certified arborist today!

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Signs You Might Have A Bark Beetle Infestation

There are more than 600 different species of bark beetles and over 41.7 millions acres of land destroyed from them. They are becoming more common as time goes on and date back to 1996, when the first outbreak began in the U.S. Bark beetles usually go after the weaker trees, decayed or already taken over by some sort of fungus or bacteria. They kill the trees by cutting off their food and water transport abilities.

Symptoms of bark beetles include:

• Pitch tubes, reddish brown in color on the outside of the bark

• Sawdust substances around bark

• Woodpecker holes could indicate there are bark beetles present

• Leaves and needles turn from green to reddish brown

• Tree decline

Unfortunately, once the symptoms of bark beetles are noticed, it usually is too late to apply a pesticide and the tree must be removed to prevent further spread in the area. If you notice the bark beetles early on in their cycle, a pesticide can be applied by a certified Arborist that kills the adults when they land on the tree. This will prevent them from entering, laying eggs and repeating the cycle.

When applying pesticides, make sure you use a certified arborist, as these chemicals can be dangerous and cause more harm to the good and helpful insects of the tree.

If you suspect bark beetles on your trees, it is important to contact your local ISA certified arborist immediately to remediate the situation before they take over.

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