Farmers are being told to be alert for a new pest which has arrived in New Zealand - the fall armyworm.
Eggs were found in suburban Tauranga in surveillance traps last month and caterpillars have now been found on two farms in Tamahere, just south of Hamilton.
Alison Watson has extensive international experience dealing with the fall armyworm which can wipe out crops.
She heads the secretariat of ASEAN's Fall Armyworm Action Plan in south-east Asia.