Effect of Cleaning Multiple-Funnel Traps on Captures of Bark and Woodboring Beetles in Northeastern United States

Abstract

Two experiments were conducted in mixed hardwood-conifer forests in the northeastern United States to test the effects of cleaning surfactant and non-surfactant treated multiple-funnel traps used to catch bark and woodboring beetles. Large amounts of pollen and other debris often form a crust on the interior of traps (personal observations). Such surface deposits may provide footholds for beetles to escape capture in traps. In one experiment, we tested cleaned surfactant and non-surfactant traps against non-cleaned surfactant and non-surfactant traps. In a second experiment, we tested field cleaning of modified multiple-funnel traps as an alternative to substituting clean traps on each collection visit. There was no effect of surfactant treated traps, cleaned or not, on total beetles or individual bark beetle species captured. However, in situ cleaned traps were statistically better at capturing total beetles, total bark beetles, and several bark beetle species than non-cleaned control traps. Surfactant-treated non-modified traps and cleaned modified traps had higher species richness and abundance than other treatments at the site level. Our results suggest that cleaning traps to remove accumulated pollen and debris may be helpful for some species but would have limited benefit for broad-scale trapping of bark and woodboring beetles in northeastern forests.

Bark beetle and woodborer responses to stand thinning and prescribed fire in northeastern US coastal and inland pitch pine barrens

“…Most of these are common species in the southeastern United States, and all but one have historic distributions reaching north to states adjacent to New York such as Delaware, Pennsylvania and/or New Jersey (Atkinson, 2023). Crypturgus alutaceus , historically known as far north as Pennsylvania and New Jersey, has been recorded recently in Massachusetts, New Hampshire and Maine (DiGirolomo et al, 2022; Dodds & DiGirolomo, 2020). Hypothenemus georgiae is rare, known from only three published records in Florida and Georgia (Atkinson, 2023), and the eight specimens captured during this project represent a significant expansion of its known range.…”

“…have historic distributions reaching north to states adjacent to New York such as Delaware, Pennsylvania and/or New Jersey(Atkinson, 2023). Crypturgus alutaceus, historically known as far north as Pennsylvania and New Jersey, has been recorded recently in Massachusetts, New Hampshire and Maine(DiGirolomo et al, 2022;Dodds & DiGirolomo, 2020). Hypothenemus georgiae is rare, known T A B L E 5…”

Comparison of Three Attractants for the Effective Capture of Xylotrechus chinensis Adults in Multi-Funnel Traps

“…The commercially available multi-funnel traps, which are suitable for catching species of cerambycids [45], were supplied by NovAgrica (Athens, Greece) and were used in the experiment. The multi-funnel trap consists of six black funnels with a removable white collection cup that facilitates the counting of the captures (dry trapping) (Figure 2e).…”

Correction: Dodds, K.J.; DiGirolomo, M.F. Effect of Cleaning Multiple-Funnel Traps on Captures of Bark and Woodboring Beetles in Northeastern United States. Insects 2020, 11, 702

“…The authors wish to make the following corrections to this paper [1]: On pages 5 and 6, we reported that 13 new state records of Scolytinae, 10 in New Hampshire and 3 in Maine, were collected during these experiments.…”