MPI in 'please explain' over kauri dieback

Several scientists and conservation groups spoken to by Nine to Noon say they are baffled by the apparent lack of published scientific research into the kauri dieback tree killing disease, which kills most, if not all, the kauri it infects. Meanwhile, Forest and Bird has sifted through official government documents about the ministry's approach to the disease and says there seems to be no real plan. Kathryn talks to Lincoln University's biosecurity scientist Dr Amanda Black and Forest and Bird's Dr Rebecca Stirnemann.