 Nearly half of the wheat and barley fields scouted in North Dakota over the past two weeks had cereal aphids. The NDSU Crop and Pest Report says the hot spots are in southwest and south-central North Dakota. Wheat stem sawfly and wheat stem maggot were only seen in 13% of the fields surveyed. With numerous rains, soybean aphids were not reported in any of the 90 fields scouted last week. Grasshoppers continue to be the most common insect in field crops this year.