Canada milk-vetch (Astragalus canadensis L.) is a widespread North American legume considered to be good forage in some regions but potentially dangerous to livestock when it contains high levels of 3-nitropropionic acid. Larvae of the seed predator Acanthoscelides perforatus (Horn) (Coleoptera:Bruchidae) occurred in 77% of the mature pods from 10 genotypes of the legume growing in a nursery at Brookings, S. Dak., in autumn 1987. Dinarmus acutus Thomson (Hymenoptera: Pteromalidae) parasitized 48% of the A. perforatus larvae and reduced numbers of seeds consumed by A. perforatus larvae by 23%. This study identified D. acutus as a parasitoid of A. perforatus and indicated parasitoids may play an important role in recruitment of native legumes. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.