Dallas R. Virchow
University of Nebraska–Lincoln
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Publication
Featured researches published by Dallas R. Virchow.
International Biodeterioration & Biodegradation | 1998
Scott E. Hygnstrom; Peter M McDonald; Dallas R. Virchow
Abstract We evaluated the effectiveness and cost of three zinc phosphide (Zn3P2) baits for managing black-tailed prairie dogs (Cynomys ludovicianus). Sixty-six 0.4-ha treatment and paired control plots were delineated within 13 prairie dog colonies in central Nebraska. Treatment plots were prebaited with untreated stream-rolled oats according to Zn3P2 label directions. After 2–3 days, we applied each of the three formulations of Zn3P2 baits according to label directions to 22 randomly assigned treatment plots. Prairie dog activity was reduced 80% with Zn3P2-treated rolled oats (Pocatello Supply Depot, US Department of Agriculture-Wildlife Services, Pocatello, ID, USA); 78% with Zn3P2-treated crimped oats (Bell Laboratories, Inc., Madison, WI, USA), and 71% with Zn3P2-treated pellets (Bell Laboratories), as measured by a plugged burrow technique. No significant differences (P=0.342) in efficacy were detected among the three treatments. Material costs varied among the Zn3P2 treatments (rolled oats-
Archive | 2002
Dallas R. Virchow; Scott E. Hygnstrom
1.04 kg−1, crimped oats-
Archive | 2000
Kurt C. VerCauteren; Scott E. Hygnstrom; Robert M. Timm; Robert M. Corrigan; John Beller; Larry L. Bitney; Michael C. Brumm; Daniel Meyer; Dallas R. Virchow; Robert Wills
1.32 kg−1, and pellets-
Horttechnology | 2009
Scott E. Hygnstrom; Peter Skelton; Scott J. Josiah; Jason M. Gilsdorf; Dallas R. Virchow; James A. Brandle; Anil K. Jayaprakash; Kent M. Eskridge; Kurt C. VerCauteren
2.21 kg−1). Each treatment, including prebaiting with untreated rolled oats, required 3.6 h ha−1 to apply. The total costs for 70% to 80% control of black-tailed prairie dogs (@
Archive | 2002
Scott E. Hygnstrom; Dallas R. Virchow
5.00 h−1 labor) were
Archive | 1991
Dallas R. Virchow; Scott E. Hygnstrom
18.71 ha−1 for rolled oats,
Archive | 1991
Dallas R. Virchow; Scott E. Hygnstrom
18.82 ha−1 for crimped oats, and
Archive | 2006
Scott E. Hygnstrom; John M. Hobbs; James G. Bruner; James Weverka; Dallas R. Virchow; Dennis M. Ferraro
19.16 ha−1 for pellets.
Archive | 2003
Scott E. Hygnstrom; John M. Hobbs; James G. Bruner; James Weverka; Dallas R. Virchow; Dennis M. Ferraro
Archive | 2003
Dallas R. Virchow; Scott E. Hygnstrom; Bruce Anderson