Nothing too puzzling about this, I would say.
Ministry for Primary Industries has a vested interest in covering
samples of New Zealand honey, three of which were mānuka, were
tested. All were found to have the insecticides.
the findings are at odds with testing carried out on behalf of the
Ministry for Primary Industries between 2014-16, which showed no
traces of neonicotinoids in honey for sale.
Study uncovers puzzling case of insecticides in New Zealand honey
"MPI monitors pesticides, including neonics, and their published (2013-14) tests showed no detection of neonics in the honey tested. I understand that MPI has undertaken more recent monitoring since then (2015-16 yet to be published) and again there was no detection of neonics," Kos said.