Volume 33, Number 1 - Spring 2000 (2000)
Peer-Review Articles
Tomicus Piniperda (Coleoptera: Scolytidae): Is Shoot Feeding Required for Reproductive Maturation?
Therese M. Poland and Robert A. Haack
Abundance of Cereal Aphids (Homoptera: Aphididae) and Their Predators in Spring Wheat-Alfalfa Intercrops Under Different Crop Management Intensities
Louis S. Hesler, Robert W. Kieckhefer, and Paul D. Evenson
Wheat Stem Maggot in Spring Wheat-Alfalfa Intercrops With Different Crop Management Intensities
Louis S. Hesler and Robert W. Kieckhefer
First Record of Tachysphex Pechumani (Hymenoptera: Sphecidae) From Indiana
Frank E. Kurczewski
Variation in Timing and Abundance of Elfins (Callophrys) (Lepidoptera: Lycaenidae) in Wisconsin During 1987-1999
Ann B. Swengel and Scott R. Swengel
Seasonal Shoot-Feeding by Tomicus Piniperda (Coleoptera: Scolytidae) in Michigan
Robert A. Haack, Robert K. Lawrence, and George C. Heaton