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Every tree produces sap, which is the liquid that transports water, nutrients, and hormones throughout the plant. After it’s produced in a tree’s leaves, the sap travels through the phloem, which is the inner layer of bark. If your tree is bleeding this substance more than usual, you might need to perform some tree care maintenance to prevent problems.

Why Does It Bleed?

It’s not healthy for a tree to bleed sap. However, the majority of trees that bleed sap will survive, especially if you identify and treat the cause.

Cutting a tree’s branches or trunk severs the phloem and may cause the substance to bleed out, particularly if the tree’s sap level is high. Sap level varies throughout the year, so research when it’s highest for your species and avoid pruning during that time. 

Some trees bleed sap due to pests. For example, when beetles bore holes in the bark, the tree will fill the holes with sap so the insects can’t lay eggs. The excess liquid will then seep from the openings. 

Bleeding sap can also be a symptom of certain diseases and fungi. For instance, an elm tree will bleed when it’s suffering from bacterial wetwood. 

What Trees Are Most Likely to Drip Sap?

tree careSome breeds tend to bleed more than others. Maples tend to have higher sap levels, and elms drip excess amounts when they’re damaged. Birch trees also produce a lot of the substance, and people often harvest it to use in syrup and beer. If you have a honey locust tree, it will drip more than other breeds when you prune it.

What Should You Do If a Tree Bleeds Sap?

If your tree bleeds sap after you prune it, simply wait for it to heal. If it’s an elm or oak tree, apply a pruning paint to the area to prevent Dutch elm disease or oak wilt. If your tree is bleeding sap and you haven’t just pruned it, consult a tree care specialist to identify and treat any underlying infestation or disease. 

 

Is your tree bleeding sap? Turn to the team at Eden Lawn Care & Tree Service Inc. Based in Lincoln, NE, these landscaping experts will determine the source of the bleeding and restore your tree’s health as quickly as possible. Visit them online to learn more about their tree care services, or call (402) 488-3177 for a free estimate. 

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