The Northern Territory Department of Industry, Tourism and Trade is intent on increasing plant surveillance after a confirmed single sample of American serpentine leafminer in the Katherine region. Earlier, there were multiple detections of American serpentine leafminer in far-north Queensland’s Torres Strait and in Kununurra, Western Australia.
The pest poses a significant economic impact to Australia’s plant production industries. It has a wide host range including beans, celery, cucumber, lettuce, potato, tomato and many more. Leaf damage by ASLM occurs through puncture wounds from the adult feeding and laying eggs. Damage is also caused by larvae tunnels or leaf mines within the leaf tissue.