Hypoxylon Canker in Red Oak

[machuca86]

How do you treat hypoxylon canker in a red oak? I only noticed it on 2 limbs and we removed both of them. We removed an entire red oak that had hypox and died about 75 ft. away. The soil around the red oak i want to save is pretty compacted and there is a deck over it and water pump for a pool nearby as well. I was thinking of starting off with aerating the soil and applying mulch on top

 

[oldoakman]

Hypoxylon is an advantious secondary infection that attacks stress weakened trees. Find out what is causing the stress. You are on the right track, aeration and organic material. Soil test for nutrient and pH and appropriate water.

 

[guymayor]

Phosphorous acid (Phospho-Jet) injected has good results in TX live oaks.

Maybe soil test for chlorine etc. as well!

Better to trace cankers than remove entire limbs, if they are alive.

 

[machuca86]

Its a red oak, but it is right next to a pool