188.8.131.52. Trapping of adult small hive beetles
A variety of different traps and baits have been used to capture adult SHBs outside the hive (Elzen et al., 1999; Arbogast et al., 2007; Benda et al., 2008; Buchholz et al., 2008; Neumann and Hoffmann, 2008; de Guzman et al., 2011). Plastic bucket traps with 8-mesh hardware cloth glued across 7 cm diameter holes (large enough for adult beetles to enter) have been used to trap SHBs outside of colonies. Selection of an attractive bait is critical to capture of SHBs outside the hive environment.
While a mixture of honey, pollen, and adult bees showed the highest catch numbers in the field (Elzen et al., 1999), fruits were not efficient (Buchholz et al., 2008).
Arbogast et al. (2007) used pollen dough inoculated with the yeast Kodamaea ohmeri (Benda et al., 2008) as bait in traps made of 25.5 cm PVC pipe sections with a removable cap at each end. Two openings covered with 4-mesh screen allowed beetles to enter the trap.
An 18-mesh screen inverted cone, located just below the openings, funnelled SHB into the bottom cap through a small hole in the cone apex. Traps of this type positioned at 46 cm (same height as colony entrances) showed the highest catch numbers in the field. Although these traps generally do not catch high numbers of beetles, these traps allow for continuous observations that provide a relative measure of A. tumida migration (de Guzman et al., 2011).