The collars use sound and vibrations to guide and contain cows.
Courgette prices reached an all-time high in July.
As unemployment is expected to rise, Kiwis are moving into the sector that needs their help.
"We're trying to make it more attractive by bringing in opportunities for them."
The industry has shot to the top of the Government's priorities for economic growth.
With foreign workers unable to enter the country, the sector is facing a gap of skilled operators.
It was recently announced NZ will hold the 75th World Ploughing Championship at Lake Hawea in 2028.
The facility is offering taster and farm familiarisation courses.
Residents of at least eight states have reported receiving the suspicious packages.