There is some good news there. From an article posted in a different comment: "Joros don’t appear to have much of an effect on local food webs or ecosystems, said Andy Davis, corresponding author of the study and a research scientist in the Odum School of Ecology. They may even serve as an additional food source for native predators like birds." [0]

[0] https://news.uga.edu/joro-spiders-likely-to-spread-beyond-ge...