caa a22 4500 397571259 CHVBK 20180308164842.0 cr unu---uuuuu 161202e19961001xx s 000 0 eng 10.1093/ee/25.5.1192 doi (NATIONALLICENCE)oxford-10.1093/ee/25.5.1192 Effects of Habitat, Temperature, and Sugar Availability on Longevity of Eriborus terebrans (Hymenoptera: Ichneumonidae) [Elektronische Daten] [Lawrence E. Dyer, Douglas A. Landis] Eriborus terebrans (Gravenhorst) is the primary parasitoid of the European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: PyraIidae), in Michigan. Previous studies demonstrated that early in the growing season, E. terebrans adults are more abundant, and parasitize a greater proportion of O. nubilalis larvae, near wooded edges of cornfields. We hypothesized that E. terebrans requires a source of sugar and a moderate microclimate available in the woodlot, but not in the cornfield. Growth chamber and greenhouse experiments demonstrated that longevity of E. terebrans that are provided sugar was greater than those provided only water, or neither; and wasp longevity was greater at 25 than 35°C. In field experiments, wasps were caged in cornfields, woodlots, wooded fencerows, and herbaceous vegetation, early and late in the season. Longevity of E. terebrans adults was greater in woodlots than early season cornfields. Wasps lived longer in all habitats late in the season than early in the season. In all habitats, wasp longevity was enhanced by sugar. These and previous studies indicate that E. terebrans needs habitats adjacent to cornfields for sources of sugar and a moderate microclimate unavailable in early season corn. In annual agriculture, perennial habitats adjacent to crop fields may be necessary to provide the structure, stability, and resources needed for the successful conservation of natural enemies and effective biologicalcontrol. © 1996 Entomological Society of America Biological Control nationallicence biological control nationallicence conservation nationallicence nectar nationallicence honeydew nationallicence parasitoid ecology nationallicence agricultural ecology nationallicence Dyer Lawrence E. Department of Entomology and Pesticide Research Center, Michigan State University, East Lansing, MI 48824 aut Landis Douglas A. Department of Entomology and Pesticide Research Center, Michigan State University, East Lansing, MI 48824 aut Environmental Entomology Oxford University Press 25/5(1996-10-01), 1192-1201 0046-225X 25:5<1192 1996 25 ee https://doi.org/10.1093/ee/25.5.1192 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.5.1192 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dyer Lawrence E. Department of Entomology and Pesticide Research Center, Michigan State University, East Lansing, MI 48824 aut NATIONALLICENCE 700 1- Landis Douglas A. Department of Entomology and Pesticide Research Center, Michigan State University, East Lansing, MI 48824 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/5(1996-10-01), 1192-1201 0046-225X 25:5<1192 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford