New Zealand's multi-million dollar manuka honey industry is under threat from infighting over what gives the honey its special health qualities.
Some producers have adopted a new rating system amid concerns the fallout will damage the industry, worth an estimated $100 million.
They are no longer using the industry brand Unique Manuka Factor to label their product as genuine manuka honey.
The Active Manuka Honey Association says divisions within the industry could have a negative effect on its reputation.
National Party MP Paul Hutchison is also concerned about the long-term damage the division could cause.
He says he is trying to facilitate a meeting between producers and industry leaders to reach a consensus about standards.