Sticky-Board Trap for Measuring Dispersal of Spruce Budworm Larvae

摘要

The report describes a new sticky-board trap for measuring early-larval dispersal of the spruce budworm, Choristoneura fumiferana and evaluates trap-board color and screened versus unscreened traps. Dispersing spruce budworm larvae showed no preference for trap color; fewer nontarget arthropods were caught on dark-colored than on light-colored traps. Screened traps caught significantly more spruce budworm larvae than unscreened traps and they were easier to examine.