Listener Jo is worried about moths and thinks she's seeing less of them around. So are there really fewer moths around these days? Robert Hoare of Landcare Research is a moth specialist and the author of 'A Photographic Guide to Moths and Butterflies of New Zealand'.

Moth specialist Robert Hoare at Nelson Lakes catching micromoths Photo: Supplied

Plate from 'New Zealand Moths and Butterflies' by George Vernon Hudson (1898) Photo: Public Domain