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Hahn, Russell Reuben
Cornell Faculty Member
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Positions
- Associate Professor, Crop and Soil Sciences (CSS), College of Agriculture and Life Sciences (CALS)
I joined the Integrated Field Crop and Soil extension team at Cornell in 1974. As an extension specialist, my mission is to evaluate weed management strategies for agronomic crops in NY State, to incorporate the results into management guidelines, and to conduct educational programs on the implementation of these guidelines.
Research Areas
- crop management or crop science
- integrated crop management
- pest management
- soil and crop science
- transgenic plants
Websites
- Affiliations
- Extension
- Research
- Publications
- Service
- Background
- Other
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Affiliations
Extension
has primary specialization area
Research
research overview
- Research focus is on development and support of weed management guidelines for conventional and herbicide-resistant field crops grown in conventional and no/zone-tillage cropping systems. Troublesome annual broadleaf weeds such as common ragweed and common lambsquarters receive special attention along with perennial weeds like dandelion. In addition to routine herbicide testing done in support of the guidelines in the Cornell Guide for Integrated Field Crop Management, effort is devoted to developing strategies to deal with weed population shifts, especially in no-tillage cropping systems, and to delay or prevent development of new herbicide-resistant weed populations in NY State.
research activities
- Field crop dealer meetings
- Improving field crop extension outreach through enhanced growing season communication opportunities
- Improving field crop extension outreach through enhanced growing season communication opportunities
- Improving field crop extension outreach through enhanced growing season communication opportunities
- Improving field crop extension outreach through enhanced growing season communication opportunities
- Providing vegetable growers with tools for weed control
- Summer cover crops for weed management in vegetable production
keywords
- Field Crops
- Herbicide Resistance Management
- Integrated Pest Management
- Weed Identification
- Weed Science
Publications
individual publications
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academic article
- An Evaluation of Two Novel Cultivation Tools. Weed Technology. 26:316-325. 2012
- Cultivation Tool Design: Design and Construction of Two Novel Cultivation Tools. Weed Technology. 26:382-388. 2012
- Evaluation of a biological control agent and an isoparaffin oil for management of Fusarium head blight of winter wheat in New York, 2011. Plant Disease Management Reports. 6. 2012
- Evaluation of foliar fungicides for control of foliar diseases and Fusarium head blight of winter wheat in New York, 2011. Plant Disease Management Reports. 6. 2012
- Evaluation of integrated methods for management of Fusarium head blight and foliar diseases of winter wheat in New York, 2011. Plant Disease Management Reports. 6. 2012
- Buckwheat Residue Effects on Emergence and Growth of Weeds in Winter-Wheat (Triticum aestivum) Cropping Systems. Weed Science. 59:567-573. 2011
- Evaluation of foliar fungicides for control of foliar diseases and Fusarium head blight of winter wheat in New York, 2010. Plant Disease Management Reports. 5. 2011
- Evaluation of integrated methods for management of Fusarium head blight and foliar diseases of winter wheat in New York, 2010. Plant Disease Management Reports. 5. 2011
- Integration of Vinegar for In-Row Weed Control in Transplanted Bell Pepper and Broccoli. Weed Technology. 25:459-465. 2011
- Effects of fungicide and insecticide seed treatments on agronomic performance of winter wheat in New York, 2009. Plant Disease Management Reports. 4. 2010
- Evaluation of foliar fungicides for control of foliar diseases and Fusarium head blight of winter wheat in New York, 2009.. Plant Disease Management Reports. 4. 2010
- Evaluation of integrated methods for management of Fusarium head blight and foliar diseases of winter wheat in New York, 2009. Plant Disease Management Reports. 4. 2010
- Crop rotation, cover crop and weed management effects on weed seed banks and yields in snap beans, sweet corn and cabbage. Weed Science. 56:434-441. 2008
- Quackgrass (Elytrigia repens) managed as a cover crop in herbicide-resistant silage corn. Weed Biology and Management. 8:154-160. 2008
- Time of weed removal with glyphosate affects corn growth and yield components. Agronomy Journal. 98:349-353. 2006
- Time of weed removal with glyphosate affects corn growth and yield components. Agronomy Journal. 98:349-353. 2006
- Weed interference and glyphosate timing affect corn forage yield and quality. Agronomy Journal. 97:847-853. 2005
- Cropping systems effects on weed emergence and densities in corn . Agronomy Journal. 92:754-760. 2000
- Dissipation of picloram from vegetation of semi-arid rangelands. Weed Science. 19:329-332. 1971
- Influence of secondary succession of honey mesquite invasion in north Texas. J. Range Manage.. 24:206-210. 1971
- Occurrence and persistence of picloram in grassland water sources. Weed Research. 11:54-62. 1971
- Phenology and control of common broomweed on Texas rangelands. J. Range Manage.. 24:370-373. 1971
- Picloram persistence in semi-arid rangeland soils and water. Weed Science. 19:381-384. 1971
- Response of honey mesquite seedlings to top removal. J. Range Manage.. 24:296-298. 1971
- Dissipation and phytotoxicity of dicamba. Weed Science. 17:3-8. 1969
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article
- Life cycles affect timing of thistle control in grass pastures 2012
- Weed Science Society of America has lesson module on herbicide resistant weeds 2012
- Capreno -a new herbicide for annual broadleaf and grass weed control in corn 2011
- Kixor - a new herbicide for corn and soybeans 2011
- Reduced rates of residual herbicides prevent dandelion establishment in zone-tillage corn and soybeans 2011
- Some herbicides provide burndown and residual activity 2011
- A look ahead at herbicide resistance management strategies 2010
- Herbicide resistant weeds - how widespread are they? 2010
- Residual herbicides help control common lambsquarters in glyphosate-resistant soybeans 2010
- Safener reduces potential for corn injury with sulfonylurea herbicides 2010
- Laudis registered for annual broadleaf and grass control in corn 2009
- Preplant dandelion control in zone/no-tillage soybeans 2009
- Reduced rates of residual herbicides with burndown products perform well with conventional corn hybrids 2009
- Weed Management Challenges During Establishment of Warm-Season Perennial Grasses. 2009
- Yellow nutsedge control in glyphosate-resistant corn 2009
- Burndown herbicides improve annual grass control when residual herbicides are applied postemergence 2008
- Common lambsquartes control in glyphosate-resistant crops 2008
- Dandelion management guidelines for zone/no-tillage corn 2008
- New product combines residual herbicides with glyphosate for glyphosate-resistant corn 2008
- Distinct and Status bring new features to dicamba herbicide 2007
- Hedge bindweed control one year after postemergence herbicide applications in field corn 2007
- Impact herbicide registered for corn in NY State 2007
- Size of common lambsquarters is critical for control with glyphosate 2007
- Time of weed removal with glyphosate affects growth, yield, yield components 2007
- Glyphosate-resistant horseweed – should we be concerned? 2006
- Knapweeds controlled in pastures and hayfields with new herbicide 2006
- Role of residual herbicides in Roundup Ready Corn Programs 2006
- Tillage systems affect types of weeds in summer annual crops 2006
- Total postemergence field corn weed control – a good choice before rotating to perennial forages 2006
- Hedge bindweed control boosts corn yields 2005
- Herbicide resistance management using site of action classification 2005
- Weed interference and timing of Roundup affect corn silage yield and quality 2005
- Weed interference and timing of Roundup affect yield components of corn 2005
- Perennial forage grasses suppress roughstalk bluegrass in alfalfa/grass seedings 2004
- Postemergence large crabgrass control in field corn 2004
- Single application weed control for no-tillage Roundup Ready soybeans 2004
- Common ragweed problems and control in field corn 2003
- Lightning registered for use on Clearfield Corn 2003
- Total postemergence weed control in corn-revisited 2003
- Early postemergence weed control compares favorably with preemergence weed control in Liberty Link corn 2002
- Mesotrione – a new herbicide and mode of action 2002
- Weed control in no-tillage Roundup Ready soybeans 2002
- Conventional and herbicide-resistant corn weed control programs 2001
- Residual herbicides improve postemergence large crabgrass control in corn 2001
- Effect of conventional and Roundup Ready weed control programs on yellow nutsedge tuber populations 2000
- Effect of residual herbicides and timing of Roundup Ultra on weed control and soybean yields 2000
- Northeast’s least wanted corn weeds 2000
- Rotational crop guidelines for new corn herbicides 2000
- Soybean weed control gets cheaper 2000
- Basis Gold provides options for total postemergence weed control in field corn 1999
- Basis herbicide-a review of research results in New York State 1999
- Time of application is critical for total postemergence weed control in silage corn 1999
- Timing critical for Liberty ATZ applications 1999
- Timing of total postemergence weed control programs less critical for soybeans than for corn 1999
- Triazine-resistant common lambsquarters revisited 1999
- Herbicide classification for weed resistance management 1998
- Postemergence herbicides control triazine-resistant common ragweed and common groundsel 1998
- Postemergence yellow nutsedge control in Roundup Ready soybeans 1998
- Soybean yields similar with preemergence and postemergence weed control programs 1998
- Wirestem muhly control with herbicide-resistant corn hybrids 1998
- Acetochlor registration is denied by NY State DEC 1997
- Herbicide-resistant crops: benefits and risks 1997
- Roundup Ready soybeans have successful introduction 1997
- Stellar provides postemergence velvetleaf and common ragweed control in soybeans 1997
- Timing is critical for Liberty and Roundup Ultra programs in corn 1997
- Crop rotation affects between crop applications for horsenettle control 1996
- Early preplant versus preemergence large crabgrass control in no-tillage corn 1996
- Reduced herbicide rates for narrow-row field corn 1996
- Time of application affects performance of postemergence yellow nutsedge herbicides 1996
- Broadstrike + Dual provides new weed control option 1995
- New York State management plan for corn herbicides 1995
- Pre- and postemergence soybean herbicides compared 1994
- Sencor boosts velvetleaf activity of postemergence herbicides in fieldcorn 1994
- Low-rate postemergence weed control in field corn with Accent combinations 1993
- Results suggest low threshold for velvetleaf in field corn 1992
- Smooth bedstraw control provides opportunity to improve hayfields 1992
- Between-cropping applications control broadleaf perennial weeds 1991
- Research looks at ways to reduce atrazine rates 1991
- Triazine-resistant biotypes of common weeds plague New York corn growers 1990
- Integrated Pest management on the Dairy Farm. New York’s Food & Life Sciences Quarterly. 16-2:28-29. 1986
- Integrated pest management on the dairy farm 1986
- Sencor (metribuzin) registered for established alfalfa. What’s Cropping Up in Agronomy. XXI. 1978
- Glyphosate (Roundup) registered for field crops. What’s Cropping Up in Agronomy. XIX. 1976
- Formulation changes for thiocarbamate herbicides. What’s Cropping Up in Agronomy. XVIII. 1974
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booksection
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conference paper
- Reduced rate residual herbicides prevent dandelion establishment in zone-tillage corn and soybeans . Proceedings Northeastern Weed Science Society. 106. 2012
- Weed research update and changes in guidelines. Field Crop Deraler Meeting. 2011
- A look ahead at herbicide resistance management strategies . Field Crop Dealer Meetings. 2010
- Saflufenacil - a new herbicide for corn and soybeans . Field Crop Dealer Meetings. 2010
- Saflufenacil for annual broadleaf weeds in corn . Proceedings Northeastern Weed Science Society. 90. 2010
- Dandelion control in no-tillage corn and soybeans. Proceedings Northeastern Weed Science Society. 53. 2009
- Role of 4-HPPD inhibitors in corn weed control and in herbicide resistance management. Field Crop Dealer Meetings. 13-15. 2009
- Weed management research update and changes in weed control guidelines . Field Crop Dealer Meetings. 22-23. 2009
- Annual grass burndown in corn with HPPD inhibitors. Proceedings Northeastern Weed Science Society. 79. 2008
- Dandelion burndown and control in zone/no-tillage corn and soybeans. Department of Crop and Soil Sciences, Cornell University. 27-29. 2008
- Effects of buckwheat cover crop on winter wheat establishment, yield, and weed suppression. Proceedings Northeastern Weed Science Society. 23. 2008
- Management of herbicide-resistant weeds. Proc. 2008 Empire State Fruit & Vegetable Expo. 1114-115. 2008
- Hints on controlling perennial weeds in sweet corn. Proc. 2007 Empire State Fruit & Vegetable Expo. 152-153. 2007
- Postemergence annual grass control in corn with HPPD inhibitors. Proceedings Northeastern Weed Science Society. 25. 2007
- Hedge bindweed control in field corn. Proceedings Northeastern Weed Science Society. 81. 2006
- KIH-485 for large crabgrass and giant foxtail control in corn. Proceedings Northeastern Weed Science Society. 82. 2006
- Frequency and distance of pollen-mediated gene flow from glyphosate-resistant corn to conventional corn. Proceedings Northeastern Weed Science Society. 2. 2005
- Single application weed control for no-tillage glyphosate-resistant soybeans. Proceedings Northeastern Weed Science Society. 7. 2005
- Weed interference and timing of glyphosate application affect yield components of corn. Proceedings Northeastern Weed Science Society. 6. 2005
- Pre- and postemergence common ragweed control in field corn. Proceedings Northeastern Weed Science Society. 8. 2004
- Roughstalk bluegrass suppression in alfalfa/grass hayfields. Proceedings Northeastern Weed Science Society. 1. 2004
- Weed management during establishment of glyphosate-resistant alfalfa. Proc. Northeastern Weed Sci. Soc.. 15. 2003
- Reduced rates of glyphosate and tank mix partners for glyphosate-resistant corn. Proc. Northeastern Weed Sci. Soc.. 16. 2002
- Success of total post weed control in Northeastern U.S. corn – second year results. Proc. Northeastern Weed Sci. Soc.. 18. 2002
- Weed population shifts in glyphosate-resistant corn. Proc. Northeastern Weed Sci. Soc.. 7. 2002
- Effect of residual herbicides and application timing on efficacy of glyphosate-resistant soybeans. Proc. Northeastern Weed Sci. Soc.. 28. 2001
- Success of total post weed control in Northeastern U.S. corn. Proc. Northeastern Weed Sci. Soc.. 30. 2001
- Suppressing quackgrass cover crops for herbicide-resistant silage corn. Proc. Northeastern Weed Sci. Soc.. 3. 2001
- Managing quackgrass infestations as cover crops in herbicide-resistant corn. Proc. Northeastern Weed Sci. Soc.. 31. 2000
- Nicosulfuron/rimsulfuron combinations for postemergence weed control in field corn. Proc. Northeastern Weed Sci. Soc.. 35. 2000
- Weed control programs with glufosinate- and glyphosate-resistant field corn. Proc. Northeastern Weed Sci. Soc.. 42. 2000
- Factors affecting silage and grain yields with glufosinate- and glyphosate-resistant corn. Proc. Northeastern Weed Sci. Soc.. 67. 1999
- Spider Spray Trac multi-boom small plot sprayer. Proc. Northeastern Weed Sci. Soc.. 110. 1999
- Using herbicide-tolerant corn hybrids to establish an alfalfa cover crop. Proc. Northeastern Weed Sci. Soc.. 23. 1999
- Annual weed control in herbicide-tolerant field corn. Proc. Northeastern Weed Sci. Soc.. 55. 1998
- Harness Plus Balance premix comparison in the northeast. Proc. Northeastern Weed Sci. Soc.. 120. 1998
- Performance of clethodim and clethodim plus broadleaf herbicide combinations in alfalfa - a northeast U.S. research summary. Proc. Northeastern Weed Sci. Soc.. 52-51. 1998
- Postemergence yellow nutsedge control in glyphosate-tolerant soybeans. Proc. Northeastern Weed Sci. Soc.. 58. 1998
- Postemergence yellow nutsedge control in glyphosate-tolerant soybeans. Proc. Northeastern Weed Sci. Soc.. 58. 1998
- Roundup Ready corn efficacy results. Proc. Northeastern Weed Sci. Soc.. 52. 1998
- Metribuzin combinations for postemergence velvetleaf control in field corn. Proc. Northeastern Weed Sci. Soc.. 28. 1997
- Reduced herbicide rates for narrow-row field corn. Proc. Northeastern Weed Sci. Soc.. 107. 1997
- Postemergence yellow nutsedge control in field corn. Proc. Northeastern Weed Sci. Soc.. 160. 1996
- Leaf cover measurements for velvetleaf thresholds in field corn. Proc. Northeastern Weed Sci. Soc.. 94. 1995
- Leaf cover measurements for velvetleaf thresholds in field corn. Proceedings Northeastern Weed Science Society. 10. 1994
- Nicosulfuron combinations with bromoxynil or dicamba for annual weed control in corn. Proc. Northeastern Weed Sci. Soc.. 70. 1994
- Nutsedge and broadleaf weed control with postemergence applications of MON 12000 in northeastern corn. Proc. Northeastern Weed Sci. Soc.. 75. 1994
- Pre- and postemergence velvetleaf control in field corn. Proc. Northeastern Weed Sci. Soc.. 37. 1993
- Assessment of leaf cover as an indicator of weed thresholds in field corn. Proceedings Northeastern Weed Science Society. 37-42. 1992
- Assessment of leaf cover as an indicator of weed thresholds in field corn. Proc. Northeastern Weed Sci. Soc.. 37-42. 1992
- Pre- and postemergence control programs for annual weeds in soybeans. Proc. Northeastern Weed Sci. Soc.. 117. 1992
- Annual weed control in corn with sulfonylurea herbicides. Proc. Northeastern Weed Sci. Soc.. 32. 1991
- Reducing atrazine rates for annual broadleaf weeds in corn. Proc. Northeastern Weed Sci. Soc.. 48. 1991
- Quackgrass control programs for field corn. Proc. Northeastern Weed Sci. Soc.. 87. 1990
- Velvetleaf competition in maize. New York State Pest Management Conference. 1990
- Velvetleaf control in field corn. Proc. Northeastern Weed Sci. Soc.. 12-13. 1989
- Smooth bedstraw control in pastures and hayfields. Proc. Northeastern Weed Sci. Soc.. 35-36. 1988
- Fall herbicide applications for no-tillage corn in sods. Proc. Northeastern Weed Sci. Soc.. 22-23. 1987
- Presidential Address. Suppl. Proc. Northeastern Weed Sci. Soc.. 7-11. 1986
- Corn chamomile control in winter wheat – an update. Proc. Northeastern Weed Sci. Soc.. 72-73. 1985
- Tridiphane combinations for annual grass control in corn. Proc. Northeastern Weed Sci. Soc.. 67-68. 1985
- Wild proso millet in New York State. Proc. Northeastern Weed Sci. Soc.. 116. 1985
- Triazine-resistant weeds in New York State. Proc. Northeastern Weed Sci. Soc.. 87-88. 1984
- Corn chamomile control in winter wheat. Proc. Northeastern Weed Sci. Soc.. 97-98. 1983
- Pendimethalin combinations for velvetleaf in corn. Proc. Northeastern Weed Sci. Soc.. 55-56. 1982
- Giant foxtail control in soybeans. Proc. Northeastern Weed Sci. Soc.. 57-58. 1981
- Annual grass control in minimum tillage corn. Proc. Northeastern Weed Sci. Soc.. 51-52. 1980
- Herbicide combinations for oil-seed sunflowers. Proc. Northeastern Weed Sci. Soc.. 99-100. 1980
- Label options for New York State. Suppl. Proc. Northeastern Weed Sci. Soc.. 34-35. 1979
- Chemical control of yellow nutsedge in corn. Proc. Northeastern Weed Sci. Soc.. 1. 1978
- Herbicide combinations for annual weed control in corn. Proc. Northeastern Weed Sci. Soc.. 64. 1976
- Altering sorghum tolerance to alachlor. Proc. Southern Weed Sci. Soc.. 173. 1973
- Effects of seed treatments on grain sorghum tolerance of alachlor. Proc. Southern Weed Sci. Soc.. 166. 1972
- How to make your own plant display. Nebraska Weed Control Conf.. 1968
- Volatility and drift hazards with 2,4-D. Proc. Nebraska Weed Control Conf.. 70-78. 1966
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document part
- Stacked Corn Hybrids Show Inconsistent Yield and Economic Responses in New York. 2010
- Changes in corn and soybean weed control guidelines. 21-23. 2008
- Crop rotation, cover crop, and weed management effects on weed seedbanks and yields in snap beans, sweet corn, and cabbage. 252. 2008
- Management of herbicide-resistant weeds. 1114-115. 2008
- Glyphosate-resistant weeds – is common lambsquarters one of them?. 29-32. 2007
- Hints on controlling perennial weeds in sweet corn. 152-153. 2007
- New corn herbicides - Impact, Distinct, and Status. 13-15. 2007
- Role of Residual Herbicides in Roundup Ready Corn Programs. 11-14. 2006
- Weed Management Research Update. 23-25. 2006
- Herbicide resistance management using site of action classification. 9-12. 2005
- Weed control research results and recommendations. 27-29. 2005
- Impact of weed interference on corn silage yield and quality 2004
- Impact of weed interference on corn silage yield and quality 2004
- Weed Inteference and timing of Roundup affect yield components of corn 2004
- Weed interference and timing of Roundup affect corn silage yield and quality. 8-9. 2004
- Weed interference and timing of Roundup affect corn silage yield and quality 2004
- Weed interference and timing of Roundup affect yield components of corn. 10-11. 2004
- Weed management research update: hedge bindweed, ragweed, and more. 18-20. 2004
- Common ragweed problems and control in field corn. 27-28. 2003
- Postemergence large crabgrass control with Steadfast, Option, and Callisto. 13-14. 2003
- Mesotrione - a new herbicide and mode of action. 9-10. 2002
- Total postemergence weed control revisited. 19-20. 2002
- 2001 Weed control research results. 9-10. 2001
- Conventional and herbicide-resistant weed control programs for corn. 23-24. 2001
- Problem perennial weeds - yellow nutsedge, wirestem muhly, and more. 5-6. 2000
- Weed management for conventional and herbicide-resistant corn and soybeans. 19-20. 2000
- Total postemergence weed control programs 1999
- Triazine-resistant common lambsquarters revisited 1999
- Herbicide classification for weed resistance management 1998
- Herbicide-resistant corn and soybeans - it’s all about timing and yields 1998
- Reduced herbicide rates for narrow-row silage corn. 2. 1998
- Effect of timing on postemergence yellow nutsedge (Cyperus esculentus) control in field corn. 8. 1997
- New corn herbicides - Basis, Balance, and Beyond 1997
- Weed control results with herbicide-resistant crops 1997
- Effects of seed treatments on grain sorghum tolerance of alachlor. 6. 1973
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report
- New corn herbicides for 2008. 1. 2008
- Scout wheat fields this fall for winter annual weeds. 1. 2008
- Russ’s Weed Alert – Impact Herbicide 2007
- Russ’s Weed Alert – Lambsquarters control issues with glyphosate 2007
- Russ’s Weed Alert – Research conducted in 2006 on Resolve herbicide 2007
- Roughstalk bluegrass suppression in alfalfa-grass seedings. 7-13. 2004
- Roughstalk bluegrass suppression in alfalfa-grass seedings. 38-42. 2003
- Reduced rates of Roundup Ultra and tank-mix partners for herbicide resistance management. 60-68. 2002
- Roughstalk bluegrass suppression in alfalfa-Timothy and alfalfa-orchardgrass seedings. 75-77. 2002
- Herbicide-resistant corn for reducing use of residual herbicides and for wirestem muhly control. 38-42. 2001
- Managing quackgrass infestations as cover crops in herbicide-resistant corn. 47-49. 2001
- Reduced rates of Roundup Ultra and tank-mix partners for herbicide resistance management. 43-46. 2001
- Using herbicide-resistant corn hybrids to establish an alfalfa cover crop. 35-37. 2001
- Herbicide-resistant corn for reducing use of residual herbicides and for wirestem muhly control. 27-32. 2000
- Managing quackgrass infestations as cover crops in herbicide-resistant corn. 54-56. 2000
- Using herbicide-resistant corn hybrids to establish an alfalfa cover crop. 24-26. 2000
- Herbicide-resistant corn for reducing use of residual herbicides and for wirestem muhly control. 29-35. 1999
- Managing quackgrass as a cover crop in corn. 28. 1999
- Using herbicide-resistant corn hybrids to establish an alfalfa cover crop. 24-27. 1999
- Reduced herbicide rates for narrow-row silage corn. 29-33. 1998
- Reduced herbicide rates for narrow-row silage corn. 28-31. 1997
- Companion crops for weed control in alfalfa and alfalfa-grass seedings. 37-46. 1996
- Stale seedbed and chemically regulated cover crops for weed control during alfalfa establishment. 47-50. 1996
- Companion crops for weed control in alfalfa and alfalfa-grass seedings. 40-49. 1995
- Feasibility of using weed canopy measurements to predict field corn yield losses. 56-59. 1995
- Establishment options for alfalfa and alfalfa with grass. 33-40. 1994
- Feasibility of using weed canopy measurements to predict field corn yield losses. 57-60. 1994
- Herbicide combinations for low-rate postemergence weed control in field corn. 61-63. 1994
- Establishment options for alfalfa and alfalfa with grass. 30-35. 1993
- Feasibility of using weed canopy measurements to predict field corn yield losses. 26-29. 1993
- Herbicide combinations for low rate postemergence weed control in field corn. 22-25. 1993
- Assessment of leaf cover as an indicator of weed thresholds in field corn. 48-53. 1992
- Herbicide combinations for low rate postemergence weed control in field corn. 54-57. 1992
- Annual weed control in corn with sulfonylurea herbicides. 65. 1991
- Economic thresholds for velvetleaf in corn. 60-61. 1991
- Economic thresholds for veveltleaf in corn 1991
- Reducing atrazine rates for annual broadleaf weed control in corn. 62-64. 1991
- Buckwheat cover crop handbook 2008
- Dairy and Field Crops Integrated Pest Management Scout Manual 1987
- No-tillage small grains 1983
- Weed control for no-tillage corn 1983
- Weed control for no-tillage forage establishment 1983
presentations
- Status and management of glyphosate-resistant weeds, Speaker 2010
Service
outreach overview
- Extension programs for integrated weed management in field crops emphasize effective and economical weed management strategies for conventional and herbicide-resistant field crops in both conventional and no-tillage cropping systems. Awareness of problems with herbicide-resistant weeds and herbicide resistance management are key elements of this program. Important activities include the annual update of the weed management sections of the "Cornell Guide for Integrated Field Crop Management" along with numerous workshops, field days, and other training sessions. These sessions provide an opportunity for private and commercial pesticide applicators to receive re-certification credits. Many of these sessions provide continuing education units (CEUs) for crop advisers through the Northeast Region Certified Crop Adviser Program. Contributions to "What's Cropping Up?"- a newsletter for New York field crops and soils, are also part of my outreach effort. Target audiences include extension field staff, dealers, applicators, crop advisers, and field crop producers in New York and New England. In addition, I serve on the College's IPM Operating Committee as Chair of the Livestock/Field Crops IPM Committee.
service to the profession
- CALS IPM Operating Committee
- CALS Integrated Field Crop, Soil, and Pest Management Program Work Team
- Northeastern Weed Science Society Herbicide-Resistant Plants Committee Committee Member 2004 - 2012
- Council for Agricultural Science and Technology Member 1978 - 2012
- Northeastern Weed Science Society Member 1975 - 2012
- American Society of Agronomy Member 1972 - 2012
- Weed Science Society of America Member 1972 - 2012
- Northeastern Weed Science Society Audit Committee Committee Member 2005 - 2006
- Northeastern Weed Science Society Nomination Committee Committee Member - 2006
- Northeastern Weed Science Society Resolutions Committee Chairperson - 2005
- New York State Agri-Business Association Board of Directors 1998 - 2004
- Undergraduate Research Award Subcommittee, Weed Science Society of America Committee Member 1995 - 2000
- Local Arrangements Committee - Norfolk, Weed Science Society of America Committee Member 1995 - 1996
- Northeastern Collegiate Weed Science Contest Chairperson 1995
- Nominating Committee, Weed Science Society of America Committee Member 1994 - 1995
- Public Relations Committee, Weed Science Society of America Committee Member 1990 - 1995
- Contest Committee, Northeastern Weed Science Society Committee Member 1984 - 1995
- Weed Science Society of America Outstanding Paper in Weed Technology Subcommittee Committee Member 1992 - 1993
- Awards Committee, Northeastern Weed Science Society Committee Member 1986 - 1990
- Parent Awards Committee, Weed Science Society of America Committee Member 1986 - 1990
- Weed Science Society of America Outstanding Paper in Weed Technology Subcommittee Chairperson 1986 - 1990
- Weed Technology Editorial Committee, Weed Science Society of America Committee Member 1986 - 1990
- Meeting Site Policy and Site Selection Committee, Weed Science Society of America Committee Member 1985 - 1990
- Ad Hoc Committee on Weed Science and Weed Technology, Weed Science Society of America Committee Member 1988 - 1989
- Northeastern Collegiate Weed Science Contest Chairperson 1988
- Weed Technology Journal Committee, Weed Science Society of America Committee Member 1984 - 1988
- Northeastern Weed Science Society Officer, President/Elect/Past 1984 - 1987
- Placement Committee, Weed Science Society of America Committee Member 1980 - 1987
- Executive Committee, Northeastern Weed Science Society Committee Member 1976 - 1987
- Northeastern Collegiate Weed Science Contest Chairperson 1986
- Weed Science Society of America Placement Committee Chairperson 1984 - 1986
- Nominating Committee, Weed Science Society of America Committee Member 1984 - 1985
- Publication Promotions Committee, Weed Science Society of America Committee Member 1984 - 1985
- Northeastern Weed Science Society Officer, Vice President 1983 - 1984
- Membership Committee, Weed Science Society of America Committee Member 1979 - 1984
- Extension Award Subcommittee, Weed Science Society of America Committee Member 1980 - 1983
- Local Arrangements Committee - Boston, Weed Science Society of America Committee Member 1981 - 1982
- Northeastern Weed Science Society Officer, Treasurer 1978 - 1982
- Northeastern Weed Science Society Officer, Secretary 1978 - 1982
- Northeastern Weed Science Society Board Member 1977 - 1978
- Northeastern Weed Science Society Chairperson for 31st Annual Meeting 1976 - 1977
- AI-SPER-0203DF692AB000108F1 Organized and served as Presiding Chair - 1977
- Weed Science Society of America Area Membership Representative 1975 - 1976
- AI-SPER-0203DF692AB0001080D Chairperson of Agronomy Section - 1976
- Public Relations Committee - 30th Annual Meeting, Northeastern Weed Science Society Committee Member - 1976
- Joint session of the Agronomy and the Ecology, Physiology, & Soils Sections - 29th Annual Meeting, Northeastern Weed Science Society Chairperson - 1975
reviewer or editor for
Background
education and training
- Ph.D. in Agronomy - Weed Science, Texas A&M University 1974
- M.S. in Agronomy - Weed Science, University of Nebraska 1968
- B.S. in Honors Program - Agronomy, University of Nebraska 1964
awards and honors
- President’s Award for Service and Dedication, 2007
- Excellence in IPM Award, 2007
- Extension-Industry Award, 2006
- Outstanding Educator Award, 2006
- Robert B. Musgrave Award for Excellence in Agronomy, 2005
- New York State Association of County Agricultural Agents Award, 2002
- Fellow Award, 2001
- First Place, Color Print Division of Photo Contest, 1995
- Fourth Place, Color Print Division of Photo Contest, 1995
- Distinguished Member Award, 1994
- Outstanding Applied Research Award for Food and Feed Crops, 1991
- Second Place, Research Poster Award, 1988
- Special Citation, 1988
- Second Place, Research Poster Award, 1984
- Distinguished Graduate Student Award, 1974
- Second Place Paper, Graduate Student Contest, 1973
- Outstanding Senior in Agronomy, 1964
Other
college
- CALS
research keyword
- Field Crops
- Herbicide Resistance Management
- Integrated Pest Management
- Weed Identification
- Weed Science
name prefix
- Dr.