1. Host ranges of parasitoid wasps are mediated by behavioural responses to hosts and their environment (infectivity), and development in hosts (virulence). Determinants of host range were measured in Diaeretiella rapae (Hymenoptera: Aphidiidae), which has been described as a generalist that attacks more than 60 species. 2. In northern Colorado, this wasp mainly attacks two hosts: cabbage aphid...

Classical biological control is often considered a cornerstone of integrated pest management, although the introduction of exotic natural enemies can have unpredictable and wideranging impacts on native ecosystems. In this article, I question the wisdom of using the classical approach as an automatic Þrst response to invasive pests. I critically evaluate some classical biological control progra...

The parasitization capacity of 3 parasitoids and the predation capacity of 3 predators towards the shallot aphid, Myzus ascalonicus Doncaster (Homoptera: Aphididae), on strawberry, Fragaria x ananassa Duchesne (Rosales: Rosaceae) cv. Honeoye, were examined in laboratory experiments. In Petri dish assays, both Aphidius colemani Viereck (Hymenoptera: Aphidiidae) and A. ervi Haliday readily stung ...

This study aims to shed light on the debate about the futures of gender, by taking into account its significance in the current development of Artificial Intelligence (AI), cyborg technologies and robotics. Its reflections are sustained by empirical data obtained between November 2010 and January 2011, when the author engaged in a study related to Gender and Artificial Intelligence at the Depar...