In brief
Research from the University of Cambridge exposes the alarming trend of invasive species hitchhiking on cut flowers and potted plants, raising concerns over their potential impact on agriculture and wildlife.
Researchers from the University of Cambridge have flagged a troubling issue with the global trade of ornamental plants, revealing that exotic pests, including snakes, frogs, and insects, often stow away in shipments. These "hitchhiking intruders" have been found in various locations, such as a tree frog that appeared unexpectedly in a florist shop in Sheffield, UK, and snakes hidden in olive trees imported across Europe.As the demand for plants, flowers, and bulbs surges, particularly in regions like East Africa and South America, scientists stress that inadequate regulations and border checks make it difficult to intercept all potential threats. Dr. Silviu Petrovan and Prof. William Sutherland of the University of Cambridge emphasize that while larger reptiles may be spotted, the smaller, more problematic pests, insects, and fungi are often overlooked.The study highlights that frogs, lizards, and various insect pests constitute the majority of unwanted stowaways in the UK. Meanwhile, mainland Europe has reported numerous incidents involving exotic reptiles and amphibians, particularly in potted olive trees. The researchers analyzed customs records from 2017-2018 in the Netherlands and data from the UK from 2021-2023, concluding that enhancing production standards and collecting comprehensive risk data is essential.The findings, documented in the journal Bioscience, call attention to the urgent need for stricter regulations in the booming global plant trade to safeguard local ecosystems from destructive invaders.
