UMN Extension scouts spent considerable time in Minnesota soybean fields last week.
Fewer than 25 percent of plants in two soybean fields in Polk County and a single soybean field in both Fillmore and Houston Counties were infested with soybean aphid (Figure 1).
![](https://1.bp.blogspot.com/-OW4TFNsnzK0/XUSkHq2lAQI/AAAAAAAAAu8/THwTgDSJ1w4oBryaeoj22h1ckbp0T9lGgCEwYBhgL/s640/aphidincidence.jpg) |
Figure 1. Fewer than 25 percent of surveyed plants in four Minnesota soybean fields were infested with soybean aphids July 12-26, 2019. Map: NDSU IPM. |
|
|
Of those plants within the four infested fields, average population densities were between 1 and 20 soybean aphids per plant (Figure 2).
![](https://1.bp.blogspot.com/-o6htDv_pln8/XUSkHhkAnDI/AAAAAAAAAu4/DH7IjvdaCzUIuHWJlC7mrvIElHCKexVxACEwYBhgL/s640/AverageAphid.jpg) |
Figure 2. Soybean aphid population densities remained low between July 12 and 26, 2019. Map: NDSU IPM. |
Wishing you continued scouting vigilance and sub-threshold soybean aphid population densities.