Stem canker surgery on an Ohlone “ancestor” coast live oak

10 11 2021

Below is a time-lapse video of a stem canker surgery we did today on a pollarded, Ohlone “ancestor” coast live oak in Portola Valley, CA. Note the removal of diseased tissue with axes and power multi-tools, cauterization, and poultice application. This was followed by a limewash application to the trunk, as well as compost tea and alkaline-rich mineral amendments to the soils. Enjoy!


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