Necrobia rufipes (De Geer) (Coleoptera: Cleridae), also known as the red-legged ham beetle, is a newly emerging pest of pet food stores, causing apprehension among producers worldwide. Concerns about this pest are exacerbated by the lack of information about infestation modalities in pet food, while specific monitoring tools are missing. Considering that adequate pet food packaging could limit N. rufipes infestations, information about the penetration modalities in commonly used pet food packaging is needed. Moreover, the development of appropriate monitoring instruments is urgent to detect pest presence early and to reduce chemical treatments for its control. In this paper, the adults’ and larvae’s ability to enter into pet food packaging was evaluated. Furthermore, to develop monitoring traps, behavioral bioassays were done: (1) testing two dierent commercial adhesive surfaces, one generally used in mouse glue traps (MG), and the other used in cockroach glue traps (CG), to evaluate their dierent abilities in avoiding insects’ escape; (2) screening dierent molecules, typical of the substrates attacked by N. rufipes, as candidate food attractants for this pest: methyl cyclopentenolone (MCP), squalene (SQ), and stearic acid (SA). The results show that N. rufipes adults and larvae enter into packaging through the air vent valves on the bottom, suggesting that a way to improve the packaging to prevent insect infestation would be to modify these points of weakness. Laboratory tests show that the dierent bioassayed glues have strong dierences in the ability to retain the caught insects, with MG being more eective than CG. The behavioral bioassay indicated that MCP and SQ attract N. rufipes adults in olfactometer. Finally, the results of dual-choice arena bioassays show that among the candidate attractant tested, a mixture of pet food (PF) and MCP elicited the strongest attraction in N. rufipes adults. These results encourage further experiments with the use of an MG adhesive trap loaded with a mixture of PF+MCP to test the effectiveness of such a tool for monitoring N. rufipes in pet food industries and warehouses.
Necrobia rufipes (De Geer) Infestation in Pet Food Packaging and Setup of a Monitoring Trap / S. Savoldelli, C. Jucker, E. Peri, M. Abdulsattar Arif, S. Guarino. - In: INSECTS. - ISSN 2075-4450. - 11:9(2020 Sep 11), pp. 623.1-623.11.
|Titolo:||Necrobia rufipes (De Geer) Infestation in Pet Food Packaging and Setup of a Monitoring Trap|
SAVOLDELLI, SARA (Primo) (Corresponding)
JUCKER, COSTANZA (Secondo)
|Parole Chiave:||red-legged ham beetle; packaging; adhesive traps; food attractants|
|Settore Scientifico Disciplinare:||Settore AGR/11 - Entomologia Generale e Applicata|
|Data di pubblicazione:||11-set-2020|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3390/insects11090623|
|Appare nelle tipologie:||01 - Articolo su periodico|