Department of Horticulture
Professor1066 Bogue St, Room A440
East Lansing, MI 48824
Area of Expertise:
Weed control in fruit, vegetables, and Christmas trees; registration of new pesticides.
2016 Extension Bulletin
Dr. Bernard Zandstra has been a member of the Department of Horticulture at Michigan State University since 1977. His research with herbicides is an integral part of the information growers request year in and year out.
Ph.D., Horticulture, University of Hawaii, Honolulu, HI, 1976
M.S., Horticulture, University of Hawaii, Honolulu, HI, 1972
A.B., Political Science, Calvin College, Grand Rapids, MI, 1966
Trinity Christian College, Palos Heights, IL, 1964
The BZ Crew
Commonly referred to as the 'BZ Crew' in and around the MSU Horticulture Farm, we pride ourselves on quality hard work that reflects Dr. Zandstra's dedication. We are a family oriented bunch, and welcome you to browse through the site and contact us with any questions.
Members of the Crew
- Colin Phillippo - Research Assistant - Weed Control; Pesticide applicator
- Nicole Soldan - IR-4 Research Program Assistant; Pesticide applicator
- Monique Hemker - Research Assistant - Weed Control; Pesticide applicator
- Undergraduate Research Assistants:
- Nick Wanczyk
- Nick Mose
- Taylor Miller
We also welcome any interest in joining our crew for the growing season months... please inquire by e-mailing Nicole Soldan.
If you eat... You are involved in Agriculture!
There may be no better phrase to describe the world we live in today. More emphasis on sustainability and where our food comes from grows the need for continuing research in agriculture.
Weed Control in Michigan Christmas Trees
Weed Control in Christmas Trees, 2015 - Extension Report # E-3237
Dr. Bernard Zandstra does research on weed control in fruit, ornamental, and vegetable crops. Current projects include weed control in seedling Christmas trees, reduced rates of herbicides in vegetable crops, and new herbicides for residual control in fruit crops. Dr. Zandstra authors the Michigan Weed Control Guide for Vegetable Crops bulletin and the weed control section of the Michigan Fruit Management Guide. He also is Field Research Director of the IR-4 Center (National Program for Minor Use Registrations) at Michigan State University. Dr. Zandstra does weed control research on most vegetable crops, including asparagus, snapbean, carrot, celery, sweet corn, cruciferous crops, cucumber, edamame, herbs, lettuce, mint, onion, pepper, squash, and tomato. His research in fruit crops includes strawberry, apple, blueberry, cherry, grape, peach, and raspberry.
The Herbicide/Weed database is an interactive tool to assist in herbicide selection. Users can select from multiple options, such as crop type and weed species, to determine which herbicides could help with their particular weed control needs.
This database is intended to be a resource for choosing herbicides: it is not a replacement for any information contained on labels. Always check product labels before applying herbicides to any crop.
Click here to access the Herbicide/Weed Database
PDF versions of herbicide and weed information
Annual Reports and Weed Control Guides
Recent Reports and Bulletins
Weed Control in Christmas Trees, 2015 - Extension Report # E-3237
Previous Annual Reports
2013 Muskmelon Trial Report (not in full report)
Altop, E.K., K. Haghnama, D. Sariaslan, C.J. Phillippo, H. Mennan, and B.H. Zandstra. 2016. Long-term perennial weed control strategies: Economic analyses and yield effect in hazelnut (Corylus avellana). Crop Protection 80:7-14
Altop, E.K., H. Mennan, C.J. Phillippo, and B.H. Zandstra. 2015. Effect of the burial depth and environmental factors on the seasonal germination of bearded sprangletop (Leptochloa fusca [L.] Kunth ssp. fascicularis [Lam.] N. Snow). Weed Management and Biology 15:147-158
Zandstra, B.H., C.J. Phillippo, W.R. Chase, N.M. Soldan, M.A. Goll. 2015. Weed control research on fruit and vegetable crops. Horticulture Report 79. Michigan State University.
Zandstra, B.H. 2015. 2016 Weed control guide for vegetable crops. MSUE Bulletin E-433.
Zandstra, B.H. 2015. Herbicides - weed control recommendations for fruit crops. IN Wise, J., et al. Michigan fruit management guide. MSUE Bulletin E-154.
Zandstra, B.H. and J. O'Donnell. 2015. Weed control in Christmas trees. MSUE Bulletin E-433.
Zandstra, B.H., C.J. Phillippo, W.R. Chase, N.M. Schroeder, M.A. Goll. 2014. Weed control research on fruit and vegetable crops. Horticulture Report 78. Michigan State University.
Zandstra, B.H. and J.J. Morrice. 2013. Maximum weed control in onion with pre- and postemergence herbicides. WSSA Abstracts 52:347.
Zandstra, B.H., S. Morse, R.V. Tocco, and J.J. Morrice. 2013. Response of asparagus to repeated applications of residual herbicides. HortTechnology 23(1).
Zandstra, B.H., C.J. Phillippo, W.R. Chase, N.M. Soldan, H.E. Sisson, N.M. Rowley. 2013. Weed control research on fruit and vegetable crops. Horticulture Report 77. Michigan State University.
Morrice, J.J. and B.H. Zandstra. 2012. Weed control in apple with old and new herbicides. NCWSS Proceedings 67:174.
Tocco, R.V. and B.H. Zandstra. 2012. Annual and perennial weed control in tree fruit with indaziflam, flumioxazin, rimsulfuron, halosulfuron, and flazasulfuron. WSSA Abstracts 52:205.
Zandstra, B.H. and J.J. Morrice. 2012. Pyroxasulfone for weed control in vegetable crops. NCWSS Proceedings 67:173.
Zandstra, B.H., J.J. Morrice, W.R. Chase, S. Morse, J. Becker. 2012. Weed control research on fruit and vegetable crops. Horticulture Report 76. Michigan State University.
Talley, C. and B. Zandstra. 2011. Cost of production of machine-harvested pickling cucumbers in Michigan 2010. MSU Extension Bulletin E-3166.
Zandstra, B. 2011. Postemergence weed control in Christmas trees. Great Lakes Christmas Tree Journal 6:12-15.
Zandstra, B., L.L. Wei, R. Tocco, C. Herrman. 2011. Preemergence weed control options in Christmas trees. Great Lakes Christmas Tree Journal 6:4-7.
Zandstra, B.H., and R.V. Tocco. 2011. Preemergence and postemergence herbicides for primocane-bearing raspberries. NCWSS Proceedings. 66:211.
Richardson, R.J. and B.H. Zandstra. 2009. Virginia creeper and wild grape control in Fraser fir. Weed Technology 23 (1):
Richardson, R.J. and B.H. Zandstra. 2009. Weed Control in Christmas trees with flumioxazin and other residual herbicides applied alone or in tank mixtures. HortTechnology 19(1):181-186.
Cisneros, J.J. and B.H. Zandstra. 2008. Flame weeding effects on several weed species. Weed Technology. 22:290-295.
Zandstra, B.H. and T.A. DeKryer. 2007. Arsenic and lead residues in carrots from foliar applications of monosodium methanearsonate (MSMA): a comparison between mineral and organic soils, or from soil residues. Food Additives and Contaminates 24(1):34-42.
Uhlig, R.E. G. Bird, R.J. Richardson, and B.H. Zandstra. 2007. Soil fumigants to replace methyl bromide for weed control in ornamentals. HortTechnology 17(1):111-114.