Manage scab with variety selection

decrease font size  Resize text   increase font size       Printer-friendly version of this article Printer-friendly version of this article

Fusarium head blight (aka scab) is one of the greatest threats to Illinois wheat producers. In addition to causing yield reductions and poor test weights, the fungus that causes the disease, Fusarium graminearum, can produce chemicals known as mycotoxins, such as deoxynivalenol (DON), that contaminate grain. Certain mycotoxins can be a serious problem for producers and millers because of limitations on the amounts allowable in food and livestock feed. In some severe cases, harvested grain contaminated with high levels of DON may be rejected for sale.

As described in issue 3 of the Bulletin (April 22), the most effective way to manage scab and DON is to integrate management practices. Studies at the University of Illinois have determined the following combination of practices as best for managing scab and DON: sowing wheat into fields previously cropped to soybean (rather than corn), planting the most scab-resistant varieties available, and spraying a fungicide when the crop begins to flower (if needed, based on the presence of weather favorable for scab).

Of these practices, growing the most scab-resistant varieties available may be the most important. For the past several years, the research program of Dr. Fred Kolb (small grains breeder at the University of Illinois) has screened wheat varieties for their level of scab resistance in the field. The varieties are evaluated in a mist-irrigated field nursery with uniformly high levels of scab. Results from the 2011 evaluations are available at the University of Illinois Variety Testing website under the "small grains" section. Using these results to choose the most scab-resistant varieties available for planting this fall will help provide the best foundation for scab management for the 2011-12 wheat growing season.

Support for scab research at the University of Illinois has come from the U.S. Wheat and Barley Scab Initiative.

Buyers Guide

Doyle Equipment Manufacturing Co.
Doyle Equipment Manufacturing prides themselves as being “The King of the Rotary’s” with their Direct Drive Rotary Blend Systems. With numerous setup possibilities and sizes, ranging from a  more...
A.J. Sackett Sons & Company
Sackett Blend Towers feature the H.I.M, High Intensity Mixer, the next generation of blending and coating technology which supports Precision Fertilizer Blending®. Its unique design allows  more...
R&R Manufacturing Inc.
The R&R Minuteman Blend System is the original proven performer. Fast, precise blending with a compact foot print. Significantly lower horsepower requirement. Low inload height with large  more...
Junge Control Inc.
Junge Control Inc. creates state-of-the-art product blending and measuring solutions that allow you to totally maximize operating efficiency with amazing accuracy and repeatability, superior  more...
Yargus Manufacturing
The flagship blending system for the Layco product line is the fully automated Layco DW System™. The advanced technology of the Layco DW (Declining Weight) system results in a blending  more...
Yargus Manufacturing
The LAYCOTE™ Automated Coating System provides a new level of coating accuracy for a stand-alone coating system or for coating (impregnating) in an automated blending system. The unique  more...
John Deere
The DN345 Drawn Dry Spreader can carry more than 12 tons of fertilizer and 17.5 tons of lime. Designed to operate at field speeds up to 20 MPH with full loads and the G4 spreader uniformly  more...
Force Unlimited
The Pro-Force is a multi-purpose spreader with a wider apron and steeper sides. Our Pro-Force has the most aggressive 30” spinner on the market, and is capable of spreading higher rates of  more...
BBI Spreaders
MagnaSpread 2 & MagnaSpread 3 — With BBI’s patented multi-bin technology, these spreaders operate multiple hoppers guided by independent, variable-rate technology. These models are built on  more...

Comments (0) Leave a comment 

e-Mail (required)


characters left

Grain Storage Systems

Behlen Grain Storage Systems offers large capacity bins with diameters from 16’ to 157’ and capacities exceeding 1,500,000 bushels. All ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form