Horticultural Sciences

Horticultural Sciences

Dr. Peter J. Dittmar

Associate Professor

Mailing Address:
Fifield Hall
2550 Hull Road
PO Box 110690
Gainesville, Florida 32611

Office: 1233 Fifield Hall
Phone: (352) 273-4771
E-mail: pdittmar@ufl.edu

Areas of Research
- Weed science of vegetables, deciduous fruit and nut crops
- Director of the North Florida IR-4 Field Lab

Educational Background
- Ph.D., Horticultural Sciences, North Carolina State University
- M.S., Horticultural Sciences, North Carolina State University
- B.S., Plant and Soil Sciences, Southern Illinois University- Carbondale

Extension Programs
- Collaborating with county and state Extension faculty
- Providing information to growers on weed management in fruit and vegetable crops
- Presenting research results and recommendations at field days and commodity meetings

Work Experience
- Associate Professor, Horticultural Sciences Dept., University of Florida, 2018-present
- Assistant Professor, Horticultural Sciences Dept., University of Florida, 2010-present
- Research Assistant Scientist, Department of Horticultural Science, North Carolina State University, 2007-2010
- Graduate Research Assistant, Department of Horticultural Science, North Carolina State University, 2004-2007

Honors and Awards
- 2017- Future Leader Award, Southern IPM Center
- 2016-Outstanding Weed Scientist, Florida Weed Science Society
- 2015- John Hutchinson Extension Award for Young Professionals, American Society for Horticultural Science Southern Region

Program Personnel
- Darrell Thomas
- Michael Long
- Fernanda Souza Krupek
- Ranjeet Randhawa

Selected Publications

Authors	Year	Title / Description	Publication
Sharpe, S.M., N.S. Boyd, P.J. Dittmar, G.E. MacDonald, R.L. Darnell	2018	Effect of temperature of clopyralid safety in strawberry.	Weed Technology 347-351.
Dittmar, P.J., J.A. Ferrell, J.V. Fernandez, and H. Smith	2016	Effect of glyphosate and dicamba drift timing and rates in bell pepper and yellow squash.	Weed Technology 30:217-223.
Sharpe, S.M., N.S. Boyd, and P.J. Dittmar	2016	Clopyralid dose response for two black medic (Medicago luplina) growth stages.	Weed Technology 30:717-724.
Reed, T.V., N.S. Boyd, and P.J. Dittmar	2016	Application timing influences purple nutsedge (Cyperus rotundus) and yellow nutsedge (Cyperus esculentus) susceptibility to EPTC and fomesafen.	Weed Technology 30:743-750.
Dittmar, P.J., R.B. Batts, K.M. Jennings, R.R. Bellinder, and S.L. Meyers	2015	Reduced metrizbuzin preharvest interval on potato yield and tuber quality.	Weed Technology 29:335-339.
Boyd, N. S. and P.J. Dittmar	2015	Impact of application time and clopyralid rate on strawberry growth and yield.	Weed Technology 29:821-826.
Miller, M.R. P.J. Dittmar, G.E. Vallad, and J.A. Ferrell	2014	Nutsedge (Cyperus spp.) control in bell pepper (Capsicum annuum L.) using fallow period weed management and fumigation for two years.	Weed Technology 28:653-659.
Miller, M.R., and P.J. Dittmar	2014	Effect of PRE and POST-DIR herbicides for season-long nutsedge (Cyperus* spp.) control in bell pepper (Capsicum annuum L.).*	Weed Technology 28:518-526.
Alves, A., A.W. MacRae, C.J. Hunnicut, T.P.Jacoby, G.E. MacDonald, and P.J. Dittmar	2013	Impact of fallow programs and fumigants on nutsedge (Cyperus spp.) management in plasticulture tomato.	Weed Technology 27:323-330.
Dittmar, P.J., D.W. Monks, K.M. Jennings, and J.R. Schultheis	2013	Effects of halosulfuron POST on sweetpotato yield and quality.	Weed Technology 27:113-116.