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Early December, 2000
C.O.R.N. 2000-38
In This Issue:
A) Soybean Cyst Nematode Resistant Varieties
B) Results For The 2000 Ohio Corn Performance Test Available
C) New Corn And Soybean Reference Available - Modern Corn And
Soybean Production
D) Regional Agronomy Meeting Topics
E) It's Back: Osu Forage Production Short Course
F) Forage & Grass Management Review Scheduled
Soybean cyst nematode is best managed with crop rotation. When the SCN populations in a field range from 200 to 2000 eggs per cup of soil a soybean cyst resistant variety can be planted. A listing of SCN resistant varieties available for 2001 can be found on Ohioline http://www.ag.ohio-state.edu/~perf/scn01/index.html.
DO NOT PLANT SCN resistant varieties in fields with SCN populations greater than 2,000. In most varieties only one source of resistance is present. If this source is planted into fields with high populations, you will favor those nematodes that can reproduce on that source and this nematode population build up in a very short period of time. The end result will be a field with a high SCN population with no resistant varieties available. Additional information is available from the SCN Fact Sheet (http://ohioline.ag.ohio-state.edu/ac-fact/0039.html
Crop professionals as well as producers may be interested in a new book on corn and soybean production. It updates and replaces several popular references (Modern Corn Production, 3rd edition, and Modern Soybean Production, 2nd edition) and should be a good general reference on all aspects of growth, management, and troubleshooting for corn and soybeans. Check out this web site for more details on the book http://www.mcsp-pubs.com/
Managing Phytophthora infections in soybean fields is among the hot production topics that will be addressed at Ohio State University's Regional Agronomy Meetings, Dec. 18-Jan.18, at sites around the state.
Last spring, Ohio growers replanted 20-30 percent of their soybeans due to Phytophthora damping off, said OSU plant pathologist Anne Dorrance, one of the speakers for the meetings. Farmers noticed that soybean varieties that were once effective against the disease weren't doing the job anymore.
"There's been a change in the populations of Phytophthora pathogens," Dorrance said. "Phytophthora has been identified in a large number of fields planted in soybeans with the 1K-resistant gene."
Dorrance and plant pathologist Pat Lipps will present findings from Ohio State University research funded by checkoff dollars from the Ohio Soybean Council. The solutions include selecting a variety with a resistance (Rps) gene different from past plantings. The selected variety should also have partial resistance (tolerance) to all Phytophthora races. Also consider tillage, if allowed under the farm's conservation plan, as well as fungicide seed treatments.
Weed resistance to ALS herbicides will be addressed by OSU weed specialist Mark Loux, who will also give a herbicide update. Purdue University climatologist and professor emeritus, Jim Newman, will give his professional opinion about seasonal weather trends to expect for 2000-2001.
Meetings coordinator Greg LaBarge, OSU Extension agent for Fulton County, said other speakers were selected based on the problems farmers faced in their local areas. A few of the wide array of topics include soil nutrient management, strip tillage and conservation tillage, new pest problems and their management.
"The series is designed to provide high quality, timely one-day update sessions for farmers and agriculture industry professionals in agronomic crop production topics," LaBarge said.
Pre-registration is $15 for individuals registering seven days before the meeting date. Registration at the door is $20, space permitting. The registration includes meal and a copy of the proceedings that includes summaries of speakers' research findings. Individuals can register and review the agenda for each meeting site by visiting this World Wide Web site:http://www.ag.ohio-state.edu/~corn/agcrops.html. Click on "Educational Programs" to access the registration page.
Those attending will also be eligible for commercial and private pesticide applicator credits as well as Certified Crop Advisor credits.
For more information, or to pre-register, call the contact numbers for meeting sites below:
Dec. 18, Fremont, PK's Banquet Hall (419) 334-6340
Dec. 19, Paulding, OSU Extension Center (419) 399-8225
Dec. 19, Celina, Wright State University lake campus (419) 586-2179
Dec. 20, Wilmot, Amish Door Restaurant (330) 497-1611
Dec. 21, Williamsfield, Community Center (440) 576-9008
Jan. 16, Mount Vernon, Dan Emmett Conference Center (740) 397-0401
Jan. 16, Plain City, Der Dutchman Restaurant (937) 644-8117
Jan. 18, Piketon, OSU Extension Center (740) 947-2121
Back by popular demand is Ohio State University's Forage Production Short Course, an intensive three-day learning experience, planned for three sites around Ohio this winter. Dates, locations and phone numbers to register are:
Dec. 11, 13 and 14, Maria Stein Retreat Center (419)
586-2179
Jan. 8-10, Defiance OSU Extension office (419) 782-4771
Jan. 22, 23, and 25, Zanesville (740) 454-0144.
Each site is limited to 30 participants, and the $50 pre-registration is required. Those interested should enroll early to guarantee a space. Get registration forms from county Extension offices in Ohio. Registration materials are also posted on the web at: http://www.ag.ohio-state.edu/~forages
Just click on "Events" to find the Forage Production Short Courses listed with a link to course registration.
The content will be essentially the same as last year's. But the sites will be in different parts of the state in order to give others a chance to attend. The curriculum will cover all aspects of forages --from production to storage to utilization -- but the emphasis will be on management and how to produce high-quality forages more efficiently and more effectively.
An interdisciplinary team of specialists will be the instructors. The format will include classroom instruction plus hands-on activities, such as identifying forage species, evaluating hay quality, worksheet exercises and computer program demonstrations. Each participant will receive a notebook full of valuable references, bulletins, fact sheets and articles.
Last year's course feedback suggests the participants found the course worthwhile. Most said they would be making changes on their farms based on what they learned and all said they would recommend it to a friend. The reference manual was especially popular with the participants. About three-fourths of last year's class were either cash hay producers or livestock - including equine --producers. The other one-fourth were forage industry professionals and government agricultural specialists.
Want to find out the latest on forage and grazing livestock research? Do you want to take a look at strip grazing turnips? How about interseeded winter annuals for feed? Or perhaps you want to learn about considerations for siting feeding areas or how to determine the condition of your cattle? Then you won't want to miss the Sixth Annual Forage and Grass Management Review.
The 2000 edition of this popular program is scheduled for Wednesday, December 13 at the OSU Extension, South District Center and OARDC's, Jackson Branch located just off of State Route 93 just south of Jackson. Registration will begin at 2:30 p.m. with a tour of the Branch from 3:00 to 4:30 p.m. The tour will highlight work being done on crops such as turnips, triticale, winter rye, and Kura clover. In addition, four years of data will be shared regarding the branch's extended grazing program and body condition scoring of the cow herd.
Once back inside, the program will continue with short presentations on the Indian Lake CRP Grazing Demonstration, considerations for siting livestock feeding areas, critical interests about managing fescue, and winter forage quality for grazing livestock. Following a sandwich and fixings supper, Dr. David Barker, OSU Extension's new Forage / Grazing Specialist, will share plans for Ohio forage research and information regarding MAX Q Tall Fescue. We are pleased to have Dr. Barker on our team as he comes to us from New Zealand with a great amount of knowledge and expertise about forages and grazing.
Reservations for the review are due, with the $5.00 registration fee, by Monday, December 11, 2000. Reservations should be sent to Dave Samples at the Jackson County Extension Office, P.O. Box 110, Jackson, OH 45640. Please make checks payable to Jackson County Extension.
Readers can subscribe electronically to this newsletter by sending an e-mail message to: corn-out-on@postoffice.ag.ohio-state.edu. A successful subscription message will receive by an automatic reply from the listserv. Contact your local Ohio State University Extension Office or e-mail labarge.1@osu.edu if you have problems subscribing.
Past versions of C.O.R.N. can be found on the World Wide Web at: http:/www.ag.ohio-state.edu/~corn/archive/
C.O.R.N. is a summary of crop observations, related information, and appropriate recommendations for Ohio Crop Producers and Industry. C.O.R.N. is produced by the Ohio State University Extension Agronomy Team, State Specialists at The Ohio State University and Ohio Agricultural Research and Development Center. C.O.R.N. Questions are directed to State Specialists, Extension Associates, and Agents associated with Ohio State University Extension and the Ohio Agricultural Research and Development Center at The Ohio State University.
Contributors to C.O.R.N. this week include: State Specialists: Anne Dorrance & Eric DeWolf (Plant Pathology), Peter Thomison (Corn Production), Dennis Mills (EA, Plant Pathology) Extension Agents: Roger Bender (Shelby), Dave Jones (Allen), Barry Ward (Marion),and Glen Arnold (Putnam).Editor: Greg LaBarge Web Editor: Tom Rosati
Information presented above and where trade names are used, they are supplied with the understanding that no discrimination is intended and no endorsement by Ohio State University Extension is implied. Although every attempt is made to produce information that is complete, timely, and accurate, the pesticide user bears responsibility of consulting the pesticide label and adhering to those directions.
All educational programs conducted by Ohio State University Extension are available to clientele on a nondiscriminatory basis without regard to race, color, creed, religion, sexual orientation, national origin, gender, age, disability or Vietnam-era veteran status.
Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Keith L. Smith, Director, Ohio State University Extension.
TDD # 1 (800) 589-8292 (Ohio only) or (614) 292-1868
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