CSIRO targets invasive weeds with natural enemies

Jon Falkenmire spent his last years removing African Boxthorn from his property near Tamworth, NSW. (HANDOUT/CARMEL JAMES)

Jon Falkenmire spent his final years trying to clear African boxthorn from his Manilla property near Tamworth in NSW.

The 77-year-old would spend a day or more a month cutting the dense thorny weed from the outside in, before climbing underneath to remove the aggressive invader from the ground.