Eric Gallandt

Professor of Weed Ecology

Degree: Ph. D. 1994, University of Wisconsin
Phone: 207.581.2933
Email: gallandt@maine.edu
Location: 205 Roger Clapp Greenhouse

Website: Weed Ecology

Professional Interests: Sustainable agriculture, cropping systems, and weed ecology and management

Teaching: PSE 105 Principles of Sustainable Agriculture, PSE 203 Weed Biology and Identification, PSE 403 Weed Ecology and Management

Research: My research program focuses on the dynamics and management of annual weeds in organic farming systems. Current research projects include evaluation and comparison of seed-, seedling-, and mulch-based management strategies in organic vegetables. We also continue to evaluate physical weed control, aiming to improve understanding of the sources of variability in cultivation-based seedling mortality. In a collaborative project with colleagues at the University of New Hampshire and University of Vermont, we are characterizing weed communities across northern New England to better understand likely responses to changing climate. Lastly, a new series of field experiments, motivated by questions from Maine farmers, is studying soil solarization as a weed management practice.

Recent Publications:

Parks¹ J.W., M.R. McCollough, and E.R. Gallandt (2025). Evaluating finger weeder angle, spacing, and speed in field and soil bin experiments. Weed Science. 73(1):e59. doi:10.1017/wsc.2025.10030

Parks¹, J. and E.R. Gallandt (2023). Testing a tine weeder with artificial weeds in the controlled conditions of a soil bin. Weed Research 63:328-337.

Brown, B., E.R. Gallandt, A. DiTommaso, P. Salon, R.G. Smith, M.R. Ryan, and S. Cordeau (2022). Improving weed management based on the timing of emergence peaks: A case study of problematic weeds in Northeast USA. Frontiers in Agronomy. 4:888664.

Birthisel¹, S.K., R.S. Clements¹, and E.R. Gallandt (2021). “Review: How will climate change impact the ‘many little hammers’ of ecological weed management?” Weed Research 61(5): 327-341.

Clements¹, R.S., S.K. Birthisel¹, A. Daigneault, E. Gallandt, D. Johnson, T. Wentworth, and M.T. Niles (2021). Climate change in the context of whole-farming systems: Opportunities for improved outreach. Climatic Change.  166:40

Sanchez¹, J. and E.R. Gallandt (2020). Functionality and efficacy of Franklin Robotics’ Tertill^TM robotic weeder. Weed Technology 35:166-170.

McCollough¹, M.R., Gallandt, E.R., Darby, H.M., and T. Molloy (2020). Band-sowing with Hoeing in Organic Grains: I. Comparisons with Alternative Weed Management Practices in Spring Barley. Weed Science 68:285-293.

McCollough¹, M.R., Gallandt, E.R., and T. Molloy (2020). Band-sowing with Hoeing in Organic Grains: II. Evidence of Improved Weed Management in Spring Wheat, Oats, Field Peas, and Flax. Weed Science 68:294-300.

¹Graduate student