To add to this, the disease carrying mosquito species like aedes aegypti and aedes albopictus are invasive species in the Americas.

These mosquitoes do some pollination but given that they're invasive it probably wouldn't be a big deal to wipe them out.

Also, invasiveness is true of a lot of pests in North America: the American cockroach isn't American, it's from Africa. Brown rats, red/fire ants, and wild pigs are also imported/invasive.