Doug Doohan
Associate Professor
Department of Horticulture and Crop Science

205 Gourley Hall 1680 Madison Ave. Wooster, OH 44691 Phone: 330-263-3593 Fax: 330-263-8337

Email: doohan.1@osu.edu

WEBSITE at www.oardc.ohio-state.edu/weedworkshop/default.asp
at OSU since 1998

AREA OF EXPERTISE:

My appointment is 75% extension and 25% research with major responsibility for weed management in fruit and vegetable crops. The long-term goal of my laboratory is to understand how weed communities function. This knowledge will help farmers use weed control technology more efficiently and in time shift the management approach from one of control to one of prevention. We also conduct many short- and medium-term projects intended to help growers resolve challenges they experience with weeds.


EDUCATION:

Ph.D 1990 North Carolina State University

MS 1984 North Carolina State University

B.Sc (Agr.) 1977 University of Guelph

AA 1975 The Nova Scotia Agricultural College


POSITIONS HELD:

2002 Present Associate Professor
Department of Horticulture & Crop Science
The Ohio State University
Wooster, OH 44691

1998 2002 Assistant Professor
Department of Horticulture & Crop Science

1987 - 1998 IPM Team Leader & Weed Specialist
Adjunct Professor - Nova Scotia Agricultural College
Nova Scotia Department of Agriculture and Marketing
P.O. Box 550, Truro, N.S., CANADA B2N 5E3

1978- 1986 Weed Specialist
New Brunswick Department of Agriculture
PO Box 6000, Frederiction, N.B., CANADA




Graduate Education:

PhD Current 0
MS Current 0

PhD Complete 2
MS Complete 5

Additional Graduate Committees 2


RESEARCH: Title of Current Projects as PI or Co-PI.

Building an Ecosystem Approach to Pest Management in Turfgrass: Evaluating
interactions among endophytes, herbivores, and weeds.

Integrating Use of Mulch, Drip Irrigation and a Novel Plant Growth Promoting
Rhizobacterium to Manage Weeds and Diseases in Fresh Market Tomato
Production.

Fine Tuning Weed Management Systems for Newly Planted and Established
Strawberries.

Weed Control Systems for Pumpkins.

Exciting New Weed Control Programs for Sweet Corn.

Maximizing Kerb Activity in Lettuce by Optimal Timing of Post Application
Irrigation

Supporting Minor-Use Herbicide Registration and Weed Management Research
for Muck Crops in Ohio.

Sensitivity of rotational vegetable crops to soil residues of Hornet, Accent,
Firstrate and Pursuit.


Peer/ Editor Reviewed Journal Articles Career Total 28.

Polter, S., Doohan, D.J., Scheerens, J. 2005. The Effect of Irrigation on Terbacil Tolerance in Field-grown Strawberries. HortTechnology. (In Press).

Figueroa, R., Doohan, D., and Cardina J. 2005. Efficacy and Selectivity of Promising Herbicides for Common Groundsel Control in Newly Established Strawberry. HortTechnology. (In Press).

Figueroa, R. and Doohan, D. 2005. Selectivity and Efficacy of Clopyralid on Strawberry. Weed Tecnol. (In Press).

Felix, J. and Doohan, D. 2005. Response of Five Vegetable Crops to Isoxaflutole Soil Residues. Weed Technol. (In Press).

Frey, M., Herms, C. P., Shuster, W., Doohan, D., and Cardina, J. 2004. Comparison of Survey Methods for an Invasive Plant (Alliaria petiolata) at the Subwatershed Level. Biological Invasions. (Accepted)

Nahar, M. S., Grewal, P. S., Miller, S. A., Stinner, D. H., Stinner, B. R., Kleinhenz, M. D., Wszelaki, A. L., and Doohan, D. 2004. Differential effects of raw and composted manure on nematode community, and its indicative value for soil microbial, physical and chemical properties. Applied Soil Ecology. (In Press).

Clements, D., Jordan, N., Murphy, S., DiTommaso, A., Booth, B., Cardina, J., Doohan, D, Mohler, C., D., and Swanton, C. 2004. Adaptability of Plants Invading North American Cropland. Agric. Ecos. and Envir. 104:379-398.

Jensen, K., Doohan, D., and Specght, E. 2004. Response of processing carrot to metribuzin on mineral soils in Nova Scotia. Can J. Plt. Sci. 84: 669-676.

Polter, S., Doohan, D., and Scheerens, J. C. 2004. Tolerance of greenhouse-grown strawberry to terbacil as influenced by cultivar, plant growth stage, application rate, application site and simulated post-application irrigation. Hort Technology 14 (2): 223-229.

Kleinhenz, M. D., Scheerens, J. C., Francis, D. M., Radovich, T., French, D., Gazula, A., Wszelaki, A., Sanchez-Vela, A., McIntyre, A., Delwiche, J., Ling, P., Amisi, K., and Doohan, D. 2003. From Farm to Consumer Linking Crop Physiology and Production with Buyer-oriented Quality. I. Vegetables. In Proccedings of the International Conference on Quality in Chains. Tijskens, L.M.M. and H.M. Vollebregt, Eds. Acta Horticulturae 604: 95-103.

Robinson, D.E., J.T. O'Donovan, M.P. Sharma, D.J. Doohan and R. Figueroa. 2003. The Biology of Canadian Weeds. 123. Senecio vulgaris L. The Canadian Journal of Plant Science. 83: 629-644.

Cardina, J., C.P Herms and D.J. Doohan. 2002. Crop rotation and tillage system effects on weed seedbanks. Weed Science 50(4): 448-460.

Doohan, D.J., J. Felix, C. Welty, J. Jasinski, and M.D. Kleinhenz. 2002. Insect management and herbicide tolerance in near-isogenic sister lines of transgenic and non-transgenic sweet corn. Crop Protection 21(5): 375-381.

Felix, J., D.J. Doohan, S.C. Ditmartsen, T. Rabaey, T. Wright, B. Flood and M.E. Schultz. 2002. Sensitivity of sweet corn and potatoes to cloransulam-methyl soil residues. Crop Protection 21:763-772.


Rogers-Langille, J, D.J. Doohan, K.I.N. Jensen, A.R. Robinson, and S. Gaul. 2001. Fluzifop-p inhibits metabolism of terbacil in strawberry (Fragaria anannasa X Deuch.). Weed Technology 15(2): 320-326.

Book Chapters

Cardina, J. and D.J. Doohan. 1999. Weed Biology and Precision Farming. Chapter 25 in Site-Specific Management Guidelines. Ed. Cheryl Clay. Potash and Phosphate Institute. Norcross, GA.

Editor Reviewed Papers in Professional Proceedings

McSpadden Gardener, B. B., Gardener, B., Miller, S. A., Kleinhenz, M. D., Doohan, D., Grewal, P. S., Grewal, P. S., and Stinner, D. H. 2002. Dried and Composted Dairy Manure in Vegetable Cropping Systems: Effects on Soil and Plant Health. In: Michel, F.C., Jr., Rynk, R., and Hoitink, H. A. J., Proceedings of the 2002 International Compost Symposium: Composting and Compost Utilization, Emmaus, Pa., JG Press. p. 581-591.

Miller, S. A., Lewis Ivey, M. A., Moyseenko, J., Wszelaki, A., Kleinhenz, M. D., McSpadden Gardener, B. B., and Doohan, D. 2002. Effects of Organic Amendments on Foliar and Fruit Diseases and Yield in Transitional Organic and Conventional Processing Tomatoes. Proceedings, 17th Annual Tomato Disease Workshop, West Palm Beach, FL, December 5-6, 2002.

Doohan, D.J., J. Cardina, and R. Hoeg. 1999. The role of provincial weed control acts. Proc. Expert Comm. on Wds. Ottawa, Canada. Pp. 30-36.

Doohan, D.J. 1998. Perennial broadleaf weeds in strawberries - the problems and their control. In Symposium - Advances in Perennial Broadleaf Weed Control. Proc. Expert Comm. on Weeds. Pp. 41-47.

Doohan, D.J. and K.I.N. Jensen. 1997. Fine tuning weed management. Proc. North Am. Straw. Growers Assoc. 14: 31-36.




Extension, technical, trade or popular articles - Career Total (192)

Doohan, D.J. 2005. Weed Management. (Chapter 9 and crop recommendations). OHIO Vegetable Production Guide. Ed. R. Precheur. OSUE Bulletin 672. p. 66-77

Doohan, D., Felix, J., and Koch, T. A. 2005. Weed Management in Vegetable Crops. Research Results 2004. Horticulture and Crop Science Series No. 739.

Doohan, D. 2004. Weed Management Chapter 6 (and weed management sections in each crop specific chapter) in Midwest Small Fruit Pest Management Handbook. OSUE Bulletin 861. p 172-190.

Doohan, D.J. 2004. Weed Management. (Chapter 9 and crop recommendations). OHIO Vegetable Production Guide. Ed. R. Precheur. OSUE Bulletin 672.

Doohan, D., Felix, J., and Koch, T. A. 2004. Weed Management in Vegetable Crops. Research Results 2003. Horticulture and Crop Science Series No. 735.

Ellis, M. A., Welty, C., Miller, D. D., and Doohan, D. 2004. Ohio Commercial Tree Fruit Spray Guide. Bulletin 506-A2 (revised). OSUE/OSU. 59 pp.

Doohan, D., Felix, J., and Koch, T. A. 2003. Weed Management in Vegetable Crops. Research Results 2002. Horticulture and Crop Science Series No. 731.

Michel Jr, F. C., and Doohan, D. 2003. Clopyralid and other pesticides in composts. Ohio State University Extension factsheet. COM-001-03, AEX-714, 3 pgs.

Doohan, D. 2003. New Weed Threatens Ohio Vegetable Producers. Todays Grower. 16(3): 19.

Doohan, D., J. Cardina, and J. Felix. 2003. New Weed infestations threaten Midwest vegetable growers. The Vegetable Grower News. 37(5): 14-15.

Doohan, D., Felix, J., and Koch, T. A. 2002. Weed Management in Vegetable Crops. Research Results 2001. Horticulture and Crop Science Series No. 719.

Doohan, D.J. 2002. New tools available to growers to manage weeds in cucurbits. The Vegetable Grower News. May 2002. Vol. 36, No. 5.

Doohan, D.J. 2002. Latest information on controlling ragweed and lambsquarters in pumpkins and sweet corn. Grower Questions Are Answered by the Experts. Todays Grower. March 2002. Vol. 15, No. 2.

Doohan, D., Felix, J., and Koch, T. A. 2001. Weed Management in Vegetable Crops. Research Results 2000. Horticulture and Crop Science Series No. 710.

Doohan, D.J., J. Cardina, and M. Kleinhenz. 2001. OSUE Bulletin 888. Cultural Practices in Vegetable Crop Weed Management Programs.

Doohan, D.J. 2001. Chemical Weed Control. Pp. 36-40 in Bulletin 506A2. Commercial Tree Fruit Spray Guide 2000. Ed. D. Miller.

Felix, J. and D.J. Doohan. 2001. Avoiding Herbicide Injury from Carryover of Herbicide Residues. The Vegetable Grower News. August 2001. Vol. 35(8), P. 11.

Doohan, D.J. 2001. Options for Annual Grass Control in Berries. Grower Questions Are Answered by the Experts. Todays Grower. July 2001. Vol. 14, No. 4.

Doohan, D.J. 2001. Giant Ragweed and Velvetleaf Management in Sweet Corn. Grower Questions Are Answered by the Experts. Todays Grower. May 2001. Vol. 14, No. 3.

Doohan, D.J. 2001. New Herbicides for Green Onions and Red Beets. Grower Questions Are Answered by the Experts. Todays Grower. May 2001. Vol. 14, No. 3.

Doohan, D.J. 2001. Alternatives to Bladex for Weed Management in Sweet Corn. Grower Questions Are Answered by the Experts. Todays Grower. May 2001. Vol. 14, No. 3.

Doohan. D.J. 2001. Herbicides for Strawberries and Brambles. Grower Questions Are Answered by the Experts. Todays Grower. March 2001. Vol. 14, No. 2.



Abstracts of Papers Presented at Professional Meetings (Career Total = 41)

Doohan, D.J. and D. Francis. 2005. Tolerance of processing tomato varieties to halosulfuron. WSSA Abstract 45: 280.

Amisi, K. J., D. J. Doohan, M. D. Kleinhenz, and S. Miller. 2004. No seed threshold and critical period weed management strategies in a transitional organic vegetable system. 2004. WSSA Abstracts 44:58

Felix, J. and D. Doohan. 2004. Apple of Peru biology and control in corn, soybean, and vegetable crops. North Central Weed Science Society Proceedings 59:61

Felix, J. and D. J. Doohan. 2004. Apple of Peru - a new invasive weed and its distribution in Ohio. WSSA Abstracts 44:86

Felix. J. and D. Doohan. 2004. Response of five solanaceous weeds to varying photoperiod. WSSA Abstracts 44:89

Figueroa R., D. Doohan, and J. Cardina. 2004. Sulfentrazone use in newly planted and established strawberry for controlling common groundsel (Senecio vulgaris L.) WSSA Abstracts 44:8

Figueroa R., D. Doohan, and J. Cardina. 2004. Maternal environment effects on seed dormancy of common groundsel (Senecio vulgaris L.) WSSA Abstracts 44:87

Doohan, D., Lamore, D., Felix, J., and Lamore, D. 2003. Sensitivity of Several Vegetable Crops to Isoxaflutole Soil Residues. WSSA Abstracts. 43:209.=
Polter, S., Doohan, D., and Scheerens, J. C. 2003. The Effect of Irrigation on Strawberry Tolerance to Terbacil. WSSA Abstracts. 43: 211.
Doohan, D., Felix, J., Ivany, J. A., and Kegode, G. O. 2003. Using WeedCast computer model to determine potato cultivation timing. WSSA Abstracts. 43:219.
Amisi, K., Doohan, D., Kleinhenz, M. D., and Miller, S. A. 2003. Effect of critical period and no seed threshold weed management strategies in a transitional vegetable organic system. NCWSS Proceedings. 58: 163.
Felix, J., Doohan, D., Ivany, J., and Kegode, G. 2003. Weed Control in Potatoes Using WeedCast to Time Cultivation. NEWSS Proceedings. 57:86.
Kegode, G., Felix, J., Ivany, J., and Doohan, D. 2003. Cultivation using WeedCast for improved weed control in potato. NCWSS Proceedings. 58:127.
Felix, J., and Doohan, D. 2003. Effect of photoperiod on growth of five Solanaceous weeds. NCWSS Proceedings. 58:129.
Wzelaki, A. and Doohan, D. 2003. Flame control for weed management in cabbage and tomato. NCWSS Proceedings. 58:168.
Doohan, D., Felix, J., and Cardina, J. 2003. Apple of Peru, an emerging weed problem in vegetable and field crop rotations. NCWSS Proceedings. 58:128.
Doohan, D., Felix, J., and Bruns, D. 2003. Sensitivity of rotational crops to mesotrione soil residues. NCWSS Proceedings. 58:196.
Cluney, K., Cardina, J. and Doohan, D. 2002. Soil Moisture and Crop Canopy Effect on Velvetleaf Emergence and Development. NCWSS Proceedings.57:134.
Cluney, K., Cardina, J., and Doohan, D. 2002. Emergence and Development of Common Mallow as Influenced by Soil Moisture and Crop Canopy. NCWSS Proceedings 57:113.
Doohan, D. Felix, J. 2002. Integrating s-metolachlor and rimsulfuron into tomato production systems. WSSA Abstracts. 2002. 42:133.
Ivany, J., Doohan, D., Felix, J. and Kegode,G. 2003. Weed Control in Potatoes Using WeedCast to Time Cultivation. Proceedings. Canadian Weed Science Society. Annual Meeting 2002.
Doohan, D. Felix, J. Lamore, D. 2003. Sensitivity of Several Vegetable Crops to Isoxaflutole soil residues. NCWSS Proceedings 57: 90.
Koch, T., Doohan, D. and Felix, J. 2002. Weed control and potato tolerance with rimsulfuron, halosulfuron and sulfentrazone programs. NCWSS Proceedings. 57:44.
Figueroa, R., Doohan, D. and Cardina, J. 2003. Germination response of six common groundsel (Senecio vulgaris L.) collections to temperature and burial. WSSA Abstracts. 42: 294.
Doohan, D. Felix, J. Bruns, D. 2002. Managing Weeds in Sweet Corn with Mesotrione
Programs. NCWSS Proceedings. 57:93.
Felix, J. and D. Doohan. 2001. Integrating s-metolachlor into processing tomato weed management sytems. NCWSS Proceedings. 42: 24.

Doohan, D.J, J. Felix, M.D.Kleinhenz and C. Welty. 2001. Insect and weed management with transgenic sweet corn. WSSA. Abstracts. 41: 21.

Felix, J., D.J. Doohan and M.E. Shultz. 2001. Sensitivity of rotation vegetable and specialty crops to flumetsulam + clopyralid and cloransulam-methyl soil residues. WSSA Abstracts.. 41: 24.

Invited out-of-state and/ or international presentations
Doohan, D.J. 2005. Weedy tomatoes? Lets do better by using new herbicides and revisiting some old ones. 2005 Mid-Atlantic Fruit & Vegetable Convention. Hershey, PA. February 3, 2005. (150 participants).
Doohan, D.J. 2004. Weed Ecology and Organic Cropping System Research. Departmental Seminar. Department of Horticultural Science. Virginia Tech University. Blacksburg, VA.
Doohan, D.J. 2004. Weed control in cucurbits. United Agri Products Ltd. Growers Meeting. PA. December, 2003. (65 participants).
Doohan, D.J., Felix, J., and Amisi, K. 2003. Developing and extending appropriate technology for weed management on small forms and the impact of biotechnology. 6th Biennial Conference of the African Crop Science Society, The Hilton Hotel Nairobi, Kenya, October 12-17, 2003.

Doohan, D J. 2003. Weed Management in Tomatoes and Cucurbits. 2003 Wisconsin Fresh Fruit and Vegetable Conference, Oconomowoc, WI. Sunday, January 05, 2003. (75 participants).

Doohan, D J. 2003. Managing weeds in berry crops. Presented to 2003 Wisconsin Fresh Fruit and Vegetable Conference, Oconomowoc, WI. Sunday, January 05, 2003. (65 participants)

Doohan, D J. 2003. Weed Management in Cucurbits. Iowa Vegetable Growers Association Meeting. Thursday, February 06, 2003. (110 participants).

Doohan, D.J. 2003. Growing Cucurbits with Mulch. Iowa Vegetable Growers Association Meeting. Sunday, February 02, 2003. (120 participants).

Doohan,D. 2003. OSU Trials with Sandea tomatoes and potatoes. Gowan Company Meeting. Harrisburg PA, Nov. 5, 2002.

Doohan, D.J. 2002. Improving weed control in berries through understanding weed biology. Upper Midwest Regional Fruit and Vegetable Growers Conference. St. Cloud, MN.

Doohan, D.J., R. Figueroa and S. Polter. 2001. Weed Control Options in Berries. Great Lakes Vegetable Conference. Grand Rapids, MI.

Doohan, D.J. 2000. Weed Management in Tomatoes and Peppers. Great Plains Veg. Conference. St. Joseph, MO.

Doohan, D.J. 1999. Vineyard Floor Management - 99 Heartland Grape Symp. Indianapolis, IN.

Doohan, D.J. 2001. Herbicide and Varietal Interactions to Avoid. Sweet Corn Session. The 2001 Mid-Atlantic Fruit and Veg. Conf. 1:22.

Doohan, D.J. 2000. Sweet corn and weed biology considerations. Sweet Corn Session. The 2000 Mid.-Atlantic Fruit and Veg. Conf. Pp. 50.


Cardina, J., C.P. Herms and D.J. Doohan. 2000. The impact of agronomic practices on the weed seed bank. Proc. Third Intl. Weed Science Congress Foz do Iguassu, Brazil. (Abstract published from this talk is cited as 12.g. No. 48).

Recent Feature Stories on Laboratory Research

Boyd, V. 2004. Keep and eye peeled for Apple of Peru. The Grower. 37(4): 20-22.

Goforth, A. 2004. No more guessing. Innovative WeedCast computer model helps fine tune weed control timing. The Grower. 37(1): 24-25.

Anonymous. 2003. Pest Management Weed Watch. American Vegetable Grower. October, 2003.

Associated Press. 2003. Blue Flower could be death of crops. Akron Beacon Journal. August 25, 2003. p. B6.

INTERNATIONAL INVOLVEMENT:

During 1999 I was an invited speaker at the Annual Meeting of the Expert
Committee on Weeds, which was held in Ottawa, Canada. I am also active on the
Ontario/ Mid West Strawberry Think Tank.


GOALS FOR NEXT 5 YEARS:

Extension:

To ensure that Ohio residents are provided with the best possible
curriculum, training, and support materials on weed management
in fruit and vegetable crops and to generally increase the
effectiveness of OSUE fruit and vegetable team programming by
ensuring that weed management issues receive appropriate
attention. To achieve these goals I have undertaken to update weed
management aspects of all curriculum and support materials,
develop materials that provide in depth training on weed
management issues and develop a strong presence for our
programming on the world wide web.


Research:

1. Develop a well recognized and extramurally funded program that supports
the industries need for weed management technology.

2. Establish medium to long-term projects that will lead to improvements in our
understanding of weed biology and thus our ability to manage weed
communities within cropping systems.

Last modified: 5/14/2008