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What are the treatments for tree fungus?

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Quick Answer

Methods of treating tree fungus include cultural, chemical and biological means. In some cases, controlling fungus is not possible and management requires the services of an arborist. For a do-it-yourself approach, spray the fungus with over-the-counter 3-percent hydrogen peroxide.

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Full Answer

The effects of the tree fungus depend on its strain. Some cause premature leaf drop while others cause unusual growth patterns or discoloring of the leaves. Use of hydrogen peroxide offers an organic approach that keeps harsh chemicals out of the landscape.

To treat the fungus with hydrogen peroxide, pour the solution directly from the bottle into a clean garden sprayer, pressurize the sprayer and apply the solution to the affected areas.

Manufacturers dilute hydrogen peroxide to 3 percent for medical use. If using horticultural grade hydrogen peroxide, which is much more concentrated, first dilute the product using water. The usual ratio for mixing horticultural peroxide is 2 1/2 tablespoons per gallon of water. Medical grade or diluted horticultural hydrogen peroxide kills many fungi without harming the foliage of the plant.

Prevent fungal growth from trees by removing any diseased growth from the trees. Keep the area under the canopy free of organic material that encourages fungi to grow. When watering woody stemmed plants, apply water at the base and avoid wetting the foliage.

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