In Florida, more than two invasive species get established every month, brought in through cargo or by visitors. But researchers are making progress in the battle against one major pest: the Brazilian peppertree.
On a cattle ranch near Fort Pierce, a team from the University of Florida recently released 1,500 tiny insects called thrips, or Pseudophilothrips ichini.
"That is the biological control for the Brazilian pepper," Kate Rotindo said.