Necrobia rufipes (De Geer) Infestation in Pet Food Packaging and Setup of a Monitoring Trap
Articolo
Data di Pubblicazione:
2020
Citazione:
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. [10.3390/insects11090623]
Abstract:
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.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
red-legged ham beetle; packaging; adhesive traps; food attractants
Elenco autori:
S. Savoldelli, C. Jucker, E. Peri, M. Abdulsattar Arif, S. Guarino
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