In my forest I have only found one relatively healthy mature White Ash tree, in the NE corner of Lot C, with a circumference at chest height of 5ft 2.25 inches. At first I thought it was a hickory as there were nuts on the ground underneath it - I later found these nuts were from a Red Hickory tree slightly uphill. The White Ash has opposite, compound leaves, with whiteish undersides, and a C-shaped leaf scar when the leaf is broken off. The bark is tight and has diamond patterns. It seems to be one of the last trees to leaf out in late spring and first trees to lose its leaves in the autumn. I am worried about it succumbing to the Chinese emerald ash borer beetle which is wiping out ash trees across the US - I sprayed the trunk preventatively with imidacloprid in the spring of 2023.
There is a much smaller White Ash tree perching above the mini-waterfall at the eastern edge of Lot C.
In the late winter of 2024, I found more White Ash trees...... The first two straddled the southern stream in northern Lot B. The lower trunks looked healthy, measuring 4ft 11.75" and 2ft 7.75" in circumference. But on looking up, I saw only sparse branches. Highly suspicious of emerald ash borer damage.
Then I found three more White Ash trees, close to the northern stream in Lot B (southern border of Lot C). These were completely dead, with D-shaped exit holes in the bark, which was also coming off in large sheets to reveal twisting galleries made by the beetle larvae.