Pityophthorus juglandis

Thousand Cankers Disease (TCD) Update – Don't Rush to Cut Walnut Trees!

The long-term outlook for eastern black walnuts seemed dire when the Thousand Cankers Disease (TCD) complex was confirmed in Butler County, OH, in 2013. Thankfully, TCD has not followed the devastating trajectory we originally feared. It is not rolling through our native black walnuts à la emerald ash borer on native ash. The two situations are like apples-to-oranges.
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Joe Boggs