@Grant Good point! There's very little tutu inside Ōtautahi city, but it does grow along the Waimakariri River. Local beekeepers will need to be careful.
(For anyone who doesn't know, tutu is a very poisonous native plant and the passionvine hoppers like to feed on it. Hungry honeybees can gather the excess sugars containing tutin poison that the passionvine hoppers excrete. If tutin gets into honey and is not detected, it sends people to hospital.)
Beekeepers test for #tutin.