A method used to collect adult parasitoids by use of pan traps. Yellow bowls are affixed to the trunks of ash trees with shelving brackets and filled with a clear propylene glycol solution. This liquid traps insects that are attracted to the yellow color of the bowl. Traps are sampled weekly throughout the summer. Samples are poured through a filter, frozen and screened for parasitoids in the late fall.
A method used to collect adult parasitoids by use of pan traps. Yellow bowls are affixed to the trunks of ash trees with shelving brackets and filled with a clear propylene glycol solution. This liquid traps insects that are attracted to the yellow color of the bowl. Traps are sampled weekly throughout the summer. Samples are poured through a filter, frozen and screened for parasitoids in the late fall.
