in the Southern Hemisphere, the wasp has caused 80% mortality of pines where it is established
What can be done to control this tree killer?
a parasitic nematode (Deladenus siricidicola) can be used to infect larvae that then develop into sterile females
sterile females spread the nematode when they attempt to lay eggs
several species of parasitic wasp that are native to North America have been introduced into South America as control agents there and these should help control the wasp here