Sudden oak death (SOD) is caused by a fungus called Phytophthora Ramorum. Several species of oaks are susceptible to this disease. Once infection occurs, the disease can spread rapidly to the inner bark and sapwood resulting in stem girdling and death of the host tree. SOD treatment has several combined approaches that depend on tree susceptibility and condition.

Phosphite fungicides have been proven the most successful preventative treatment for this disease. Phosphite treatments slow the progression of SOD. However, the majority of oaks affected will eventually die.

Bartlett is using a new innovative technique to combat SOD called the ‘power planer,’ which attacks the disease head-on and prevents further progress of the disease into healthy bark tissues upon infection. To prevent SOD on your property, contact an arborist for a consultation before it’s too late.

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