Dispersal Following Establishment in Michigan of Microctonus aethiops , 1 a Parasitoid of Adult Alfalfa Weevils 23

1 June 1974

journal article
Published by Oxford University Press (OUP) in Environmental Entomology

Vol. 3 (3) , 575-576
https://doi.org/10.1093/ee/3.3.575

Abstract

Microctonus aethiops (Nees), a European braconid parasitoid of adult alfalfa weevils, Hypera postica (Gyllenhall), was first established in the eastern United States in 1961 (Coles and Puttler 1963). Brunson and Coles (1968) listed release localities of M. aethiops through 1967, and it has been released in many other localities in the East and Midwest since then. Day et al. (1971) described the distribution of M. aethiops in the eastern United States and gave the dates of first recovery in many eastern states. However, to my knowledge it is not known how far M. aethiops has dispersed from an initial release site where a known number of parasitoids was released.

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