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How to Treat Fungus on a Tree

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How to Treat Fungus on a Tree

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Overview

Fungus spreads through spores often carried by wind, water, insects or exposure to infected pruning equipment. There are many types of fungi that affect the health and appearance of a tree. The spread of fungus to other parts of the same tree, or to a different tree altogether, can be controlled. Chemical treatments for most types of fungi are available, but there are some fungi that cannot be stopped, and the only solution is to cut the tree down. Treating a tree fungus requires fungicide application, sterilized pruning tools and a proper maintenance regimen.

Step 1

Inspect the tree, wearing gloves, to determine the type of fungus.

Step 2

Prune affected parts of the tree, if the fungus is limited to a particular portion and has not spread. Cut infected branches 2 inches below the fungus, using sterilized pruning equipment. Remove the branches in the winter to prevent the fungal spores from penetrating open wounds.

Step 3

Place the pruned clippings in a garbage bag immediately to prevent contact with other pats of the tree. Knot firmly and discard.

Step 4

Apply the appropriate fungicide to the tree. Read label directions for dosage and application details, as many fungicides are applied in proportion to the trunk diameter. Follow the treatment schedule to make sure the tree is fully treated and rid of the fungus.

Step 5

Apply dry, granular borax over exposed surfaces or cuts to seal the wounds and prevent fungal spores from entering.

Step 6

Maintain the tree during the growing season to prevent fungus from appearing again. Water, fertilize and prune as per needs of the tree to strengthen it so that it is not susceptible to disease. Spray a preventive fungicide to the tree, following the label instructions.

Things You'll Need

  • Gloves
  • Pruning shears
  • Garbage bag
  • Fungicide

References

  • North Dakota State University: Deciduous Tree Diseases
  • SavaTree: Tree Care
Keywords: treating fungus, treating tree fungus, fungal disease treatment

About this Author

Tanya Khan is a freelance author and consultant, having written hundreds of thousands of words for various online and print sources. She has an MBA in Marketing but her passion lies in giving her words wings.