Search

Stegobium paniceum (L.) is a major pest for several stored products worldwide. Monitoring methods for this species, based on pheromone traps, are affected by the complexity and expensiveness of the chemical synthesis of the pheromone isomer [(2S,3R,1’R)-Stegobinone] and/or by its lost of efficacy after two weeks at room temperature. So other semiochemicals that can be exploited for monitoring this species are highly desirable. In this study was tested the behavioral response in two-choice olfactometer of S. paniceum adults to Volatile Organic Compounds (VOCs) collected from colonized substrate. The elution of the headspace collection from S. paniceum colony elicited attraction of both sexes. The GC-MS chemical analysis of the extract indicated the presence of several alkanes, alcohols, aldehydes and fatty acids, some of them already reported to attract other stored product coleopteran pests and promising candidates for further studies to test their attractiveness on S. paniceum.

The topic of this issue is the analysis of the bilingual Japanese – Italian Dictionary published in 1994 (second edition 2008) by Shogakukan of Tokyo. The analysis concerns the use of the bilingual dictionary as a tool in Italian language learning for Japanese native speakers. This paper analyzes in particular the structure of the dictionary (both the macrostructure and microstructure), from the word list and the phraseology, to the metalanguage and the symbols, the additional information and the sections in the addendum.