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).
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| 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. |
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Of those plants within the four infested fields, average population densities were between 1 and 20 soybean aphids per plant (Figure 2).
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| 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.
