Thursday, July 17, 2014

Soybean Aphid Scouting Reports from NW Minnesota

Soybean Fields scouted 7/14 - 22/2014
Begin scouting fields to establish where your soybean aphid field infestations are at this time. Here is a captured image from Google maps showing our first soybean field scouting reports from around the southern end of NW MN. Most of our scouting detected no infestations based on random plant selection/scouting. Aphids have been found in fields, but the numbers have been well below treatable populations.
July 17, 2014
Scouting activities did find a field (indicated by red marker) with low level of aphids on Thursday, July 17. Plants with aphids on them represented ~30% of the plants inspected (~70% had "0" aphids). When aphids were found, numbers were well below 20/plant. 

July 22, 2014
Scouting in the Underwood, MN area. Aphids were observed in fields, but the infestations were generally light. Plants with aphids present accounted for under 25% of those sampled. When aphids were found, they numbered less than 10 aphids/plant. One sampled plant had ~40 aphids; no other "hot spots" in the field were noticeable. In other words, still quiet though aphids are out there.