Introductions

A balled & burlapped White Oak/Quercus alba sapling, from a nursery in Millstone, New Jersey, was waiting to be planted in Green-Wood recently. I noticed that the tree was hosting some galls: Acraspis pezomachoides, by the look of them. As with the galls on Swamp White Oaks/Q. bicolor planted on the street, this is undoubtedly how some galls are introduced into the city. They simply come with the tree.

Scouting out the tree once it was planted, I noticed something else…

A couple of snail shells. I feel pretty confident that these amber snails/family Succineidae were also introduced from NJ.

In this case, however, these didn’t seem to be alive.

Another day, I spotted this Green Stink Bug/Chinavia hilaris crawling down the trunk. (Yes, in late November.) In this case, I can’t say if this came with the tree, since this species is known locally.