During the past 25 years, the soybean cyst nematode (SCN) has spread throughout Iowa and is now commonly considered to be the most damaging pest of soybeans. Unmanaged, this nematode pest can reduce soybean yields by 50%. Yield losses total many millions of dollars annually in Iowa. The soybean aphid, Aphis glycines, was first discovered feeding on soybeans in Iowa and other Midwestern states in 2000, and its distribution has spread throughout the state and region in the past 8 years. Soybean aphids have been found in every county in the state and the insect has become a serious yield-reducing pest of soybeans in Iowa. Yields may be decreased by 30% or more if damaging infestations are...
The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.