Identification of the Sex Pheromone of the European Grain Moth <i>Nemapogon granellus</i>: (3<i>Z</i>, 13<i>Z</i>)-3, 13-Octadecadienyl Acetate

Abstract

The hexane rinse from whole bodies of 5000 unmated females of the European grain moth Nemapogon granellus (Lepidoptera : Tineidae) was purified on a short Si02 column and an AgNO3 impregnated Si02 column, while the pheromone activity was monitored by a conventional behavioral bioassay.The analysis of the active principle(s) and its dimethyldisulfide (DMDS) derivative(s) by GLC and GC-MS indicated that the structure corresponded to that of 3, 13-octadecadienyl acetate.Only the 3Z, 1 3Z-isomer among the four candidates synthesized gave GLC and GC-MS results identical with those of the purified pheromone, and it was most active among the isomers. These results indicated that the female sex pheromone of the European grain moth was identical to (3Z, 13Z)-3, 13-octadecadienyl acetate.

Stored product pest Nemapogon variatella (Clemens): Identification of sex pheromone, putative antagonist and mitotype characterization

“…Furthermore, lepidopteran pheromones used to control moth populations are characterized by low acute toxicity (high LD50s, from no to slight eye irritation, low‐to‐moderate skin irritation, no or moderate sensitization) and have no or minimal effects in subchronic tests (including combined with screening for reproductive/developmental toxicity; Fan & Ting, 2014). For now, the sex pheromone has been identified only for single and the most harmful pest within the genus Nemapogon – N. granella (Linnaeus) (Ohshima et al, 1993). The Pherobase, database of pheromones and semiochemicals, lists just sex attractants for seven other species of the same genus including the stored product pest N. variatella ( N. personellus (Pierce & Metcalfe); El‐Sayed, 2023).…”

“…For now, the sex pheromone has been identified only for single and the most harmful pest within the genus Nemapogon -N. granella (Linnaeus) (Ohshima et al, 1993). The Pherobase, database of pheromones and semiochemicals, lists just sex attractants for seven other species of the same genus including the stored product pest N. variatella (N. personellus (Pierce & Metcalfe); El-Sayed, 2023).…”

Sex attractant for the banana moth, Opogona sacchari Bojer (Lepidoptera: Tineidae): provisional identification and field evaluation

“…Although Opogona sp. sex pheromones have not been identified, pheromones for other tineid moths have been identified and utilized for purposes of control 12–19. The majority of the identified pheromones are 2/3,( Z )13‐octadecadienyl compounds, predominantly alcohols, aldehydes and acetates.…”