John M. Wallace, PhD.

John M. Wallace, PhD.

  • Assistant Professor of Weed Science
423 Agricultural Science & Industries Bldg
University Park, PA 16802

Areas of Expertise

  • Weed ecology
  • Herbicide-based weed control
  • Organic weed management
  • Sustainable cropping systems

Education

  • B.S. Pennsylvania State University
  • M.S. University of Idaho
  • Ph.D. University of Idaho

Publications

Cover crop effects on horseweed (Erigeron canadensis) density and size inequality at the time of herbicide exposure
Weed Science, Wallace, John M., Curran, William S., Mortensen, David A., 2019

Cover crop species and cultivars for drill-interseeding in mid-atlantic corn and soybean
Agronomy Journal, Caswell, Katherine, Wallace, John M., Curran, William S., Mirsky, Steven B., Ryan, Matt R., 2019

Agronomic and economic tradeoffs between alternative cover crop and organic soybean sequences
Renewable Agriculture and Food Systems, Champagne, Rebecca J., Wallace, John M., Curran, William S., Baraibar, Barbara, 2019

Evaluation of cover crops drill interseeded into corn across the mid-Atlantic region
Agronomy Journal, Curran, W. S., Hoover, R. J., Mirsky, S. B., Roth, G. W., Ryan, M. R., Ackroyd, V. J., Wallace, J. M., Dempsey, M. A., Pelzer, C. J., 2018

Integrated Weed Management Strategies in Cover Crop-based, Organic Rotational No-Till Corn and Soybean in the Mid-Atlantic Region
Weed Science, Wallace, John M., Keene, Clair L., Curran, William, Mirsky, Steven, Ryan, Matthew R., Vangessel, Mark J., 2018

Cover crop-based reduced tillage system influences Carabidae (Coleoptera) activity, diversity and trophic group during transition to organic production
Renewable Agriculture and Food Systems, Rivers, Ariel, Mullen, Christina, Wallace, John, Barbercheck, Mary Ellen, 2017

Tolerance of Interseeded Annual Ryegrass and Red Clover Cover Crops to Residual Herbicides in Mid-Atlantic Corn Cropping Systems
Weed Technology, Wallace, John M., Curran, William S., Mirsky, Steven B., Ryan, Matthew R., 2017

Cover crop-based, organic rotational no-till corn and soybean production systems in the mid-atlantic United States
Agriculture (Switzerland), Wallace, John M., Williams, Alwyn, Liebert, Jeffrey A., Ackroyd, Victoria J., Vann, Rachel A., Curran, William S., Keene, Clair L., Vangessel, Mark J., Ryan, Matthew R., Mirsky, Steven B., 2017

Cover crop termination timing is critical in organic rotational no-till systems
Agronomy Journal, Keene, C. L., Curran, W. S., Wallace, J. M., Ryan, M. R., Mirsky, S. B., Vangessel, M. J., Barbercheck, M. E., 2017

Herbicide Control Strategies for Ventenata dubia in the Intermountain Pacific Northwest
Invasive Plant Science and Management, Wallace, John, Prather, Timothy S., 2016

Invasive spread dynamics of Anthriscus caucalis at an ecosystem scale
Biological Invasions, Wallace, John, Prather, Timothy S., 2016

Effectiveness of Herbicides for Control of Hairy Vetch (Vicia villosa) in Winter Wheat
Weed Technology, Curran, William S., Wallace, John M., Mirsky, Steven, Crockett, Benjamin, 2015

Hairy vetch seedbank persistence and implications for cover crop management
Agronomy Journal, Mirsky, Steven B., Wallace, John M., Curran, William S., Crockett, Benjamin C., 2015

Ecological characteristics of Ventenata dubia in the Intermountain Pacific Northwest
Invasive Plant Science and Management, Wallace, John M., Pavek, Pamela L.S., Prather, Timothy S., 2015

Effects of aminopyralid on ponderosa pine (Pinus ponderosa)
Invasive Plant Science and Management, Wallace, John M., Prather, Timothy S., Peterson, Vanelle, 2012

Evaluating restoration methods across a range of plant communities dominated by invasive annual grasses to native perennial grasses
Invasive Plant Science and Management, Nyamai, Priscilla A., Prather, Timothy S., Wallace, John, 2011

Plant community response to integrated management of meadow hawkweed (Hieracium caespitosum) in the Pacific Northwest
Invasive Plant Science and Management, Wallace, John, Prather, Timothy S., Wilson, Linda M., 2010