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.

Spray Volume is Critical for Postemergence Herbicides

February 10, 2016
Effect of nozzle type and size on driftable droplets

Proper herbicide application is critical to ensure products achieve their full potential for weed control.  For postemergence herbicides, this includes application to appropriately sized weeds and equipping the sprayer to achieve uniform coverage of target weeds.

Nation’s Premier Site for Water Quality Drives Progress

January 28, 2016
Water Quality image

A farm just outside the north-central Iowa town is home to Iowa State University’s Agriculture Drainage Research and Demonstration Site, a facility that has been working to further Iowa State University’s water conservation efforts since 1990.

Breaking Down Resicore - Does It Pass the Test?

January 27, 2016

The first line of defense against herbicide resistance is using herbicide programs that include multiple herbicide groups effective against target weeds. When using premix products, this involves comparing the application rates of active ingredients in the premix versus rates applied with the stand-alone products. This step is needed to insure that the premix is providing an effective dose of the active ingredient.

SCN Resistance Continues to Pay Twice in 2015

January 16, 2016
Aerial view of SCN-resistant field experiments

Resistant soybeans are vital for managing the soybean cyst nematode (SCN). But SCN-resistant soybean varieties can vary greatly in their agronomic performance and in the SCN control that they provide. ISU evaluates more than 150 SCN-resistant soybean varieties each year in experiments conducted throughout Iowa. The results of the 2015 experiments have been recently compiled and made available in print and electronically. Results show continued benefits of SCN-resistant soybean varieties in producing higher yields and allowing less SCN reproduction than susceptible varieties.