Allium Leafminer Is No Minor Inconvenience:Updates From the Northeastern US

摘要

If you grow onion or other alliums in the northeastern U.S., you might have already heard of a new invasive pest called the allium leafminer (Phytomyza gymnostoma). This tiny fly was first found on a farm in Lancaster, Pennsylvania, in December 2015.The fly is originally from Poland, but has become an important pest of alliums throughout Europe and now the northeastern U.S.Since 2015, the allium leafminer (ALM) has spread to six states, including Connecticut, Massachusetts, Maryland, New Jersey, New York and Pennsylvania (Fig. 1). The mechanism for its spread is unclear, but may be aided by the transport of infested plantmaterial throughout the region. Currently, there are no reports of ALM in other allium growing regions in the U.S.