Integrated Crop Management News

Links to these articles are strongly encouraged. Articles may be republished without further permission if published as written and if credit is given to the author, Integrated Crop Management News, and Iowa State University Extension and Outreach. If articles are used in any other manner, permission from the author is required.

Midsummer Scouting for Downy Mildew and other Soybean Diseases

August 8, 2008
Image of downy mildew symptoms

By XB Yang, Department of Plant Pathology and John Kennicker, Iowa State University Extension


Summer soybean disease scouting is revealing some interesting finds due to several years of unusual weather. This is the third year in a row that Iowa has had a cool summer. The summer of 2006 was cool, but not wet; this year and last year, cool and wet.


Soybean Rust and Late Planted Soybeans

August 6, 2008
Map of the US Drought monitor, July 2008

By Daren Mueller, Department of Plant Pathology

Iowa producers are asking if soybean rust will affect the late planted soybean crop. Taking a look at current U.S. locations of soybean rust and understanding the movement of the rust, helps answer the question for Iowa producers.


All Things Considered, It Could Be Worse!

August 5, 2008
Image of base 50 degree F degree days in regions of Iowa from May 1 to August 3, 2008

by Rich Pope, Department of Plant Pathology


Corn and soybean condition has remained remarkably good in general as we enter August. Favorable weather in the early summer certainly has not made up for the early season planting problems that plagued parts of Iowa, but it has allowed crops to recover. The last week of July was warm and allowed vegetative staged crops to make up some lost degree day ground. 


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