So many thousands of Chinese origin shipping containers come into the US Western ports, it would seem reasonable to believe that Calif and Oregon as well as the entire Western and SW US would be over run by murder hornets if it was only a case of them hitching a ride in Chinese shipping containers or even ships.
The top 10 US imported container destinations from China are: (1 TEU= Twenty Foot Equivalent Unit)
1. Port of los Angeles. 9.46 million TEUs
2. Port of Long Beach. 8.1 million TEUs
3. Port Authority NYC and NJ. 7.18 million TEUs
4.Port of Savanna Ga 4.35 million TEUs.
5. Port of Seattle/Tacoma. 3.8 million TEUs
6. Port of Virginia. 2.86 million TEUs
7. Port of Houston. 2.7 million TEUs
8. Port of Oakland Calif. 2.55 million TEUs
9. Port of Charelston. 2.32 million TEUs
10. Port of San Juan, Puerto Rico 2.2 million TEUs
[This message has been edited by maryjane (edited 08-04-2020).]