Circle traps are installed around tree-of-heaven (Ailanthus altissima) trunks. These trees are spotted lanternflies' preferred host. The trap has a funnel-shaped opening that works to guide lanternflies up into a bag to be collected.
Monitoring for spotted lanternfly
Immature lanternflies (called nymphs) fall out of tree canopies as they feed and then and climb back up the tree to feed more. Adult spotted lanternflies walk or hop up trees throughout the day. WSDA uses this predictable behavior, in combination with various detection methods, to help monitor for potential introductions.
Circle Traps
Experimental lures are being added to the trap in order to attract both SLF nymphs and adults into the trap These lures may give WSDA an additional opportunity to detect potential lanternflies.
WSDA is collaborating with volunteers to help monitor traps across Washington. Active residents working with various municipalities, organizations are working to map tree-of-heaven. Their knowledge of the spotted lanternflies host plant makes them the perfect cooperators for the job. They actively working to install and monitor traps.