Lost the chestnuts, in the process of losing ash and now beech. It’s pretty sad but it sounds like soon we may have no native North American species left.
> The adelgid has spread very rapidly in southern parts of the range once becoming established, while its expansion northward is much slower. Virtually all the hemlocks in the southern Appalachian Mountains have seen infestations of the insect within the last five to seven years, with thousands of hectares of stands dying within the last two to three years.
https://en.wikipedia.org/wiki/Tsuga_canadensis#Hemlock_wooll...
> [starting in 1928] The disease spread from New England westward and southward, almost completely destroying the famous elms in the "Elm City" of New Haven, Connecticut, reaching the Detroit area in 1950, the Chicago area by 1960, and Minneapolis by 1970. Of the estimated 77 million elms in North America in 1930, over 75% had been lost by 1989.
As many as one in six U.S. tree species is threatened with extinction
Some 100 native tree species could die out amid an onslaught of invasive insects, a surge in deadly diseases and the all-encompassing peril of climate change