Type of Intercept Trap Not Important for Capturing Female Sirex noctilio and S. nigricornis (Hymenoptera: Siricidae) in North America

摘要

Current detection tools for Sirex noctilio F. (Hymenoptera: Siricidae) in North America are poor. To determine the importance of intercept trap type for capturing females of S. noctilio and its native congener, Sirex nigricornis F., in eastern North America, we report on seven trap comparison studies from different years and geographic locations. Among studies, total numbers of S. noctilio captured were low (meanof≤1waspper trap). Totalnumbersof S. nigricornis caughtweregenerally greater,andranged from ameanof 1-13 wasps per trap. Nearly all studies foundnosignificant differencesamongintercept trap types in the number of woodwasps caught. For future studies, we recommend that either panel or 12-unit Lindgren funnel traps be used to catch S. noctilio or S. nigricornis in eastern North America.