A biosecurity concern has emerged in Australia with the discovery of the invasive "ghost" snail, Bulimulus sporadicus, at the Port of Brisbane. The pest, known for affecting various crops such as citrus, cotton, and soybeans overseas, was found on March 14. Its presence has potential implications for numerous plant species and biosecurity protocols within the port.
Jim Eldridge, director of the technical response team at the Department of Agriculture, Fisheries and Forestry (DAFF), stated that over 350 snails have been collected and disposed of from nine sites to prevent establishment. The snail's ability to carry harmful bacteria and compete with native species raises additional concerns. The eradication method involves manual collection and traps baited with sourdough starter to lure the snails.
Eldridge highlighted the snail's dormancy through aestivation, requiring prolonged post-treatment surveillance: "That's why we need to carry out our post-treatment surveillance for an extended period, at least 12 months. And that we carry this out across seasons and especially following rain events."
Originating from the Caribbean and now problematic in the U.S., these snails have spread along railways, impacting agriculture by damaging crops and clogging irrigation lines. University of Florida research indicates significant movement capability, with snails traveling 21.8 meters in 22 days.
Nathan Hancock, chief executive of Citrus Australia, emphasized the need for enhanced biosecurity funding in response to the snail threat: "We've seen over time the Department of Agriculture's budgets reducing year on year." Meanwhile, the government claims biosecurity funding is increasing, with collaborations to enhance protection measures.
While the government recently scrapped a proposed $50 million biosecurity levy, the need for a prevention focus remains critical.
The existence of the ghost snail in Australia represents an ongoing challenge to biosecurity efforts, with experts underscoring the importance of consistent funding and responsive measures to safeguard against invasive species. The geographical isolation of the Port of Brisbane is aiding current eradication steps while investigations into the snail's arrival are ongoing.
Source: ABC News