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.

Expiration of Biotech Crop Patents - Issues For Growers

April 15, 2011

By Roger McEowen, Center for Agricultural Law and Taxation

In the near future, the last of the Roundup Ready soybean patents will expire. That expiration will be followed by the expiration of other patents on biotech crops and expiring approvals in overseas markets like the European Union and China.

Stewardship, Yields, Money and Resistance

April 15, 2011

Consider that there are a number of ways to provide stewardship, and one way that does not. Unfortunately, the one way that does not provide stewardship - recurrent use of the herbicide to which the crop is resistant - continues to prevail.

More Bean Leaf Beetles Predicted This Summer

April 8, 2011
Predicted overwintering mortality of bean leaf beetle

Using a morality prediction model, entomologists say it is likely that more overwintering adult bean leaf beetles survived during the winter 2010-2011 than the two previous winters.

Alfalfa Weevil Hatch Happening Now

April 8, 2011
Alfalfa weevil larvae

Based on accumulated temperatures since January, Alfalfa weevils are likely active now, or will become active in the next several days, in the southern half of the state and will be active in northern Iowa by April 20-25.

A 2011 Prediction for Stewart's Disease of Corn

April 7, 2011
Corn flea beetle on a corn seedling leaf

Despite the warmer December, January and February temperatures, the risk for Stewart's disease of corn in 2011, based on two predictive models, is negligible to very low throughout most of Iowa.

Corn Growth Classic Rewritten and Available to Order

April 5, 2011
Corn Growth and Development cover

By Lori Abendroth and Roger Elmore, Department of Agronomy; Willy Klein, Extension Communications

ISU Extension's corn production team has completed a new publication. "Corn Growth and Development" (PMR 1009) replaces "How a Corn Plant Develops," the previous Iowa State publication that served as the standard reference on corn growth and development for more than 40 years.

Save Tractor Fuel by `Shifting up, Throttling Back'

March 24, 2011

Rising fuel prices present a challenge for Iowa's farmers as they prepare for spring field work. A new publication from Iowa State University Extension illustrates the "shift up, throttle back" technique to reduce tractor fuel consumption and related expenses.

Popular Soybean Disease Publication Now Available as E-Book

March 22, 2011

The popular 'Soybean Diseases' publication is now available as an e-book. The online reference guide features full-screen, high-resolution images of diseases that infect soybeans grown in Iowa, along with videos to assist with managing disease-related problems.