A new insect, soybean gall midge has now been found in soybeans fields in Minnesota, eastern South Dakota, western Iowa and eastern Nebraska, North Dakota State University says.
Iowa State University Extension says a buildup of SCN numbers can go unrecognized because a soybean crop often doesn't appear stressed above ground, even though yield loss is occurring.
University of Tennessee Extension warns not to make "panic and convenience sprays," as field to field variation in insect populations can be tremendous given the differences in soybean varieties.
Despite a presence of soybean thrips, insecticides should only be used under certain conditions, and growers should be aware of the presence of beneficial predators, such as the "minute pirate bugs."
Iowa State University Extension shares the results from its 3-year study that looked at soybean varieties with resistance to soybean cyst nematode and soybean aphid.
This time of year a suite of insect pest species are feeding upon soybean foliage. Take a defoliation assessment to determine whether an insecticide application makes sense.
Matt Hudson and Brian Diers, crop sciences researchers at the University of Illinois and Andrew Bent at the University of Wisconsin, think they may have found a way to strengthen plant resistance to soybean cyst nematodes.
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