Members of the Queensland Strawberry Growers' Association have expressed disappointment after the case against a former farm worker accused of placing needles in strawberries in 2018 was dropped.

My Ut Trinh, who was a farm supervisor at Berrylicious farm in Caboolture, north of Brisbane — was arrested after needles were found in punnets purchased at supermarkets.

The contamination scare resulted in a social media frenzy, with dozens of copycat cases reported to police across Australia.

Berries Australia director Rachel Mackenzie said the silver lining since the strawberry sabotage crisis had been "much greater cohesion within the industry with crisis management protocols".