RT info:eu-repo/semantics/article T1 Protective role of DTPA against Hylotrupes bajulus L. infestations by targeting metal ion incorporation in larval mandibles A1 Martínez López, Roberto Diego A1 Casado Sanz, María Milagrosa A1 Basterra Otero, Luis Alfonso K1 2417.18 Parasitología Vegetal K1 3108.03 Control Químico de Enfermedades AB The house longhorn beetle, Hylotrupes bajulus L., is a recognized wood pest with larvae capable of infesting and damagingvarious wood species. The larvae’s wood-cutting capability is attributed to the metal-reinforced chitin in their mandibles,which provides enhanced mechanical strength. This reinforcement is due to the presence of metal ions such as zinc(Zn) and manganese (Mn) bound to the chitin structure. The present study investigates the potential of diethylenetriaminepentaaceticacid (DTPA), a chelating agent, to sequester these crucial metal ions thereby affecting the larvae’s feedingcapability. Wood samples treated with varying doses of DTPA showed significant larval mortality, with a 100% rate at adose of 6 g/l. Electron microscopic analyses of deceased larvae revealed an absence of Zn in their mandibles, suggestingthat DTPA effectively reduces its bioavailability, hindering mandible strengthening. The toxicity profile of DTPA is lowercompared to many traditional wood treatments, indicating a potential for reduced environmental impact. However, thefull spectrum of DTPA’s preservation capabilities and its interactions with other organisms require further investigation. PB Springer SN 0018-3768 YR 2024 FD 2024 LK https://uvadoc.uva.es/handle/10324/73035 UL https://uvadoc.uva.es/handle/10324/73035 LA eng NO European Journal of Wood and Wood Products, 2024, vol. 82, n. 4, p. 1111-1118. NO Producción Científica DS UVaDOC RD 07-ene-2025