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Nanostructured Biosensors Detect Pesticide, Help Preserve Environment

By Selina Meiners, NIFA

When does too much of a good thing become a bad thing? That’s the question Dr. Jonathan Claussen, assistant professor at Iowa State University’s Department of Mechanical Engineering, and his team of researchers aim to help farmers answer when it comes to pesticide use. Underuse can harm farmers’ crops, while overuse can result in runoff into the soil or waterways.

Claussen and his team created a flexible, low cost and disposable biosensor that can detect pesticides in soil. This biosensor is made of graphene, a strong and stable nanoparticle, and provides instantaneous feedback, as opposed to the time and money it would otherwise take to send a sample to a lab and await results.

NIFA supported the project with an Agriculture and Food Research Initiative (AFRI) grant as part of the Nanotechnology Program.

Iowa research show glyphosate not linked to Sudden Death Syndrome

By the Iowa Soybean Association

The world’s most widely used weed killer is not responsible for perpetuating Sudden Death Syndrome (SDS) in soybeans, research shows.

A collaborative effort among soybean researchers in the United States and Canada and found that glyphosate does not increase SDS severity or adversely affect yields in soybean fields. Scientists from five Midwest universities and the Ontario Ministry of Agriculture Food and Rural Affairs, led by Daren Mueller of Iowa State University (ISU) in Ames, participated in the three-year study. Yuba Kandel of ISU analyzed the data.

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Aphid infestation increases chance of soybean cyst nematode

In Southeast Farm Press

According to a recent soy-checkoff-funded study, the presence of soybean aphids in a soybean field increases the chances that the same field will be infested with soybean cyst nematode – even in fields planted to SCN-resistant varieties.

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UK, Iowa State to lead new arthropod management research center

The National Science Foundation has funded an Industry-University Cooperative Research Center that will explore new strategies for managing insect pests that devastate crops and harm human health.

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