There are some success stories, like the European Grapevine Moth in CA [1]. The key seems to be aggressive action when the threat is still in it’s infancy and contained. Given that murder hornets weren’t reported in the US until this year, I’m hopeful. For something like the invasive ice plant already covering the West Coast there seems little hope.
Agreed! I’ve read about certain coastal areas that have been purged of invasive species. But there’s a constant upkeep cost to keep the invaders from just moving in again a couple years later.
For these murder hornets, if we make a big up front investment in eradicating them now, there’s hope that we can prevent them from establishing themselves and becoming another perpetual battle.
[1] https://entomologytoday.org/2019/03/08/invasive-species-succ...