Northern Illinois Agronomy Research Center

Department of Crop Sciences---University of Illinois

COLLEGE of AGRICULTURAL, CONSUMER AND ENVIRONMENTAL SCIENCES

JULY 2001 Newsletter Issue 18:2 Lyle Paul - Agronomist David Lindgren - Farm Foreman 14509 University Rd. Shabbona, Il 60550 Phone/Fax 815/824-2029 e-mail lylepaul@uiuc.edu

2001 Growing Degree Days (Base 50)

2000-1 Precipitation (Inches)

Twilight Weed Control Tour

In-depth Workshops

Last Thursday, about 45 people attended the In-Depth Insect Workshop. The next workshop is on diseases on August 16. It will run from 9:30 AM until 12:00 PM. Complete details are still in being firmed up. University of Illinois Extension Specialists, Researchers and Educators will discuss the different disease conditions, occurrence and controls. CCA credits will be applied for. For complete additional details and registration contact Dave Feltes IPM Educator, at 309-792-2500 at the Quad Cities Extension Center.

Northern Illinois Agronomy Research Center Agronomy Field Day

The University of Illinois' Northern Illinois Agronomy Research Center at Shabbona will hold its annual Field Day on Wednesday, August 8, 2001 starting at 4:00 p.m. U of I Extension specialists will provide an array of information that can help producers fine tune their management techniques.

Developments in the control of black cutworm control with pre emergence treatments, rescue treatments, and transgenic hybrids will be covered by Dr. Michael Gray.

Other presentations will cover the new nitrogen test, sudden death syndrome in soybeans, soybean aphids, deep tillage and nitrogen usage, and controlling giant ragweed. Other planned speakers from U of I Extension include Bob Hoeft, Dean Malvick, Emerson Nafziger, Christy Sprague, and Mike Gray. Many of the other research studies will be available for viewing during or after the official tour of the farm.

Tours will leave every 20 minutes, with the first tour leaving at 4:00 p.m. and the last tour starting at 5:00 p.m. and ending by 6:45p.m. Certified Crop Advisor credits have been applied for. The Indian Creek Troop 39 Boy Scouts will have a light supper available after the tour at the field. For further information, call Lyle Paul, (815) 824-2029.

Crop Science Department Field Days

Other remaining Field days include:

¹ Ewing Field is operated by the University of Illinois Extension Crop Systems Educators in Southern Illinois.

CCA credits will be available at most if not all of the field days.

Soybean aphids

The soybean aphid populations continues to develop. It has been found as far south as Pope and Hardin counties in Illinois. On July 24, Ria Barrido with the aphid monitoring team reported more than 20,000 aphids on 50 plants in a field in LaSalle County, but no noticeable signs of injury to the plants. Reports from other states indicate that in some cases, treatment to control the aphids has led to higher numbers of aphids after treatment which may be due to suppression of the predator population. Complete details of the present situation are in the weekly Pest Management and Crop Development Bulletin is available at the site: http://www.ag.uiuc.edu/cespubs/pest/ on the internet. Complete information on crop problems and progress are issued in the bulletin every Wednesday. A current distribution map of aphids is available on the web at (http://www.pmcenters.org/Northcentral/Saphid/Aphidindex.htm) and the University of Illinois IPM web site (http://www.ipm.uiuc.edu/fieldcrops/insects/soybean_aphids/).

Wheat Yield Results

The wheat variety trials have been harvested and the data analyzed. Complete results will be in booklets available from the county Extension offices soon. If you the results sooner, and can use Word and Excel, go to the web site: (http://vt.cropsci.uiuc.edu/). This was a good wheat year in Illinois. In general, yields, test weights and quality were good in all areas. The "non- wheat" areas of Illinois, Urbana and DeKalb, had the best average yields in the state. The average yield of 101.1 bushels per acre at NIARC was the first trial that averaged 100+ bushels per acre since Emerson Nafziger has worked with the wheat research which dates back to 1982. Top yield for any variety was at Urbana and was 117.8 bushels per acre. The best at DeKalb was 116.9 bushels per acre (not the same variety). Trials averages were:

As you make decision on varieties for next year, review results from several sources and also multiple year results. The selection of a variety can affect the possible profit from your wheat production as can be seen from the range of yields at each of the trial sites.

Internet newsletter:

Repeat of information: The newsletter has been coming through the mail on an irregular basis. We plan to continue to do that. If you would like your name removed from the mailing list, please let us know. If you would prefer to get the newsletter as an e-mail attachment, please e-mail me at lylepaul@uiuc.edu and let me know if you would prefer Word Perfect or Word version. I will use that list to direct e-mail you a copy when it is finished. For address corrections, e-mail, write or call to the address at the top of the newsletter.

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