Abstract:
Management of phytosanitary and biosecurity risks associated with the Cerambycidae focuses on
prevention and early detection. Semiochemical-baited traps are an important component of these
management efforts. Cerambycid pheromones are often screened in field trials to develop inventories of
which species can be surveyed with which semiochemicals. We report field trials of two types of intercept
traps (four- and three-sided panel traps) baited with known Cerambycidae pheromones aimed to capture
Peruvian fauna. Intercept traps were baited with anti-2,3-hexanediol, fuscumol, and fuscumol acetate alone
and in binary and ternary blends. The most frequently captured species was Megacyllene andesiana (Casey)
(Coleoptera: Cerambycidae) (n = 268), followed by Oreodera bituberculata Bates (Coleoptera:
Cerambycidae) (n = 59), Discopus eques Bates (Coleoptera: Cerambycidae) (n = 37), and Aegomorphus
longitarsis (Bates) (Coleoptera: Cerambycidae) (n = 31). Trap type did not affect capture rates. Male and
female M. andesiana were attracted by anti-2,3-hexanediol. The addition of fuscumol, fuscumol acetate, or
the combination of fuscumol and fuscumol acetate reduced male M. andesiana captures, whereas the
addition of fuscumol and the combination of fuscumol and fuscumol acetate reduced the response of
female M. andesiana. Male O. bituberculata were attracted to traps baited with fuscumol, and this response
was reduced by the addition of fuscumol acetate, whether or not anti-2,3-hexanediol was present.
