Volume 23, Number 1 - Spring 1990 (1990)
Peer-Review Articles
Distribution of Pelecinus Polyturator in Wisconsin (Hymenoptera: Pelecinidae), With Speculations Regarding Geographical Parthenogenesis
Daniel K. Young
Mass Rearing the Gypsy Moth Pupal Parasitoids Brachymeria Lasus and Brachymeria Intermedia (Hymenoptera: Chalcididae) for Small-Scale Laboratory Studies
S. D. Stowell and H. C. Coppel
Survival and Longevity of Otiorhynchus Ligustici (Coleoptera: Curculionidae) in Alfalfa Hay Bales in Eastern Ontario
D. G. Harcourt and K Bereza
Marking Adult Colorado Potato Beetles, Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae) Using Paper Labels
Michael A. Caprio, Deborah Miller, and Edward Grafius
Residual Action of Slow Release Systemic Insecticides on Rhopalosiphum Padi (Homoptera: Aphididae) on Wheat
J. E. Araya, J. E. Foster, M. M. Schreiber, and R. E. Wing
Spatial Distribution of the Goldenrod Ball Gall Insects
John L. Confer
The Occurrence of Ditylus Caeruleus in Michigan (Coleoptera: Oedemeridae), With Observations on Its Range
Daniel K. Young
The Lepidoptera of Fowler Woods State Nature Preserve, Richland County, Ohio.
Roy W. Rings and Eric H. Metzler