How to Eliminate Tree Fungus

Overview

There are many different types of diseases that can infect your tree. Some of these diseases are caused by a fungus. North Dakota State University lists Verticillium alboatrum and sooty mold fungi as two types of fungus that commonly infect trees. If you find that your trees are infected with a fungus, you will need to treat them before the fungus has a chance to spread.

Step 1

Purchase a fungicide with the active ingredient captan. This fungicide is used to treat a variety of fungal diseases in trees and shrubs.

Step 2

Take proper safety precautions. You will need to wear a long-sleeved shirt, long pants, shoes and socks, waterproof gloves and goggles. Fungicides are harsh chemicals that can cause skin irritations, damage to the eye and allergic reactions.

Step 3

Mix 4 lbs. of captan fungicide with 20 gallons of water. If your spray tank doesn't hold 20 gallons of water, you can mix 2 lbs. of fungicide with 10 gallons of water, or 1 lb. of fungicide with 5 gallons of water.

Step 4

Spray the fungicide directly on your tree's leaves and trunk. Cover every area where you see the fungus.

Step 5

Repeat every two weeks until the fungus has cleared up.