Title: Head, Department of Entomology
My interests include:
1) management of exotic, invasive species (weeds and insects);
2) foraging strategies of parasitic Hymenoptera;
3) use of novel (non-coadapted) and ancestral (coadapted) host-parasite associations for biological control;
4) biological control of weeds, including purple loosestrife and garlic mustard;
5) impacts of transgenic technology on natural enemies.
Currently (and recently) I have projects that include assessing the habitat and host selection processes of several conspecific microgastrine braconid parasites of stemborers; understanding the physiological and immunological interactions between braconid endoparasites and their stemborer hosts; search for and importation of exotic parasites for use against alfalfa blotch leafminer in the Midwest; rearing and release of several biological control agents against the exotic wetland plant, purple loosestrife, in Illinois; studying the biology of garlic mustard, a forest-inhabiting weed; and searching for natural enemies to use against the exotic, invasive weed, teasel (Dipsacus sp.).
Biological Control of Purple Loosestrife
Wetlands, Biodiversity and Biological Control: Purple Loosestrife
Habitat and Host Specificity of Braconid Parasites of Stemborers
Biology and Biological Control of Garlic Mustard
Impacts of Transgenic Technology on Natural Enemies
Biology and biological control of teasel
|Message to students:|
University of Illinois College of Agricultural, Consumer and Environmental Sciences, Service Recognition Award, April 2002.
Member, National Invasive Species Advisory Committee, 2004-2006.
|Professional affiliations: |
Entomological Society of America
International Organization for Biological Control
Kansas Entomological Society
Natural Areas Association
|Selected publications: |
Recent Refereed Papers (last five years)
Rothwangl, K. B., R. A. Cloyd and R. N. Wiedenmann. 2004. Effects of low-risk insecticides on the citrus mealybug parasitoid, Leptomastix dactylopii (Hymenoptera: Eulophidae) (Howard). Journal of Economic Entomology 97: 1239-1244.
Lundgren, J. G., A. Razzak, and R. N. Wiedenmann. 2004. Population responses and food consumption by the predators Coleomegilla maculata and Harmonia axyridis (Coleoptera: Coccinellidae), during anthesis in an Illinois cornfield. Environmental Entomology 33: 958-963.
Maddox, J. D. and R. N. Wiedenmann. 2004. Arthropods associated with purple loosestrife in Illinois wetlands. Great Lakes Entomologist 36: 93-98.
Lundgren, J. G., and R. N. Wiedenmann. 2004. Nutritional suitability of corn pollen for the predator Coleomegilla maculata (Coleoptera: Coccinellidae). Journal of Insect Physiology 50: 567-575.
Lundgren, J. G., K. L. Steffey and R. N. Wiedenmann. 2004. The distribution and prevalence of the alfalfa blotch leafminer (Diptera: Agromyzidae) in Illinois. Great Lakes Entomologist 36: 54-60.
Wiedenmann, R. N., R. R. Diaz, C. S. Sadof and R. J. O
|Program affiliates: |
Research and Technical Scientists
Susan Moser (Entomology, 2003 - present)
Lori Kae Schwab (Natural Resources and Environmental Sciences, 2004 - present)
Jonathan Lundgren (Ph.D., Entomology, 2003)
Dylan Maddox (M.S., Natural Resources and Environmental Sciences, 2003)
Elizabeth Gault Gilson (M.S., Natural Resources and Environmental Sciences, 2003)
Katharina Rothwangl (M.S., Entomology, 2003)
Marianne Alleyne (Ph.D., Entomology, 2000)
Christine Armer (M.S., Entomology, 1996)
Claire Rutledge (Ph.D., Entomology, 1998)
Rodrigo Velarde (M.S., Natural Resources and Environmental Sciences, 2000)
Jessica Velasco (2004 - present)
Edith Bermeo (5/02 - 5/03)
Barbara Pena (5/01 - 5/02)
Dorivar Ruiz (5/01 - 5/02)
Rodrigo Diaz (12/99 - 8/00)
Gabriel Ramirez (5/99 - 11/99)
Diego Roman (8/98 - 8/99)
Rosa Escolan (5/98 - 5/99)
Fredy Cardona (5/98 - 11/98)
Janeth Moncada (11/97 - 5/98)
Roland Vargas (4/97 - 11/97)
Alex Garcia (1/97 - 4/97)
Johnson Zeledon (8/96 - 12/96)
Miguel Hernandez (5/96 - 9/96)
Carolina Calix (4/96 - 9/96)
Agripina Gonzalez (9/94 - 12/94)
Julia Chatellier (France, 3/00 - 8/00)
Julien Chatellier (France, 3/00 - 8/00)
Student Hourly Workers
Tracy McCusker (2004-present)
Jacob Kinsey (2004 - present)
|Professional society involvement and activities: |
President, IOBC-Nearctic Regional Section, 2004-2006.
President, North Central Branch, Entomological Society of America, 2003-2004.
|Education: Ph.D., Entomology, Purdue University, 1990|
B.S., Ecology, Evolutionary & Population Biology, Purdue University, 1985
|Lab name:||Lab research:||Lab publications:||Lab current projects:|