The Solomon Islands Government and the New Zealand High Commission in Honiara have raised concerns that unlicensed operators are trying to recruit workers for New Zealand's Recognised Seasonal Employer Scheme.
Since it began nearly 3 years ago more than 450 Solomon Islanders have taken part in the scheme, which provides temporary labour to New Zealand's viticulture and horticulture industry.
But there is a warning that people wanting to join the scheme must only deal with licensed operators.
The Solomons' Labour Mobility Unit says only licensed agents are eligible to recruit the workers and they must have a valid certificate.
It says it should be contacted if any member of the public has concerns about RSE agents.