Labour shortages have been identified as being a huge concern for the whole horticulture industry in New Zealand. But it isn't a problem unique to this country. This article is an interesting read (first appeared in the Guardian newspaper 6th September 2022):

https://www.theguardian.com/environment/2022/sep/06/cucumber-capital-growers-selling-up-as-brexit-and-energy-crisis-hits-britains-vegetable-industry?CMP=Share_iOSApp_Other