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Soybean Aphids Low (07/12/18)

The IPM Survey and other field reports on soybean aphid counts are low, about 10% of plants in field infested and an average of <10 aphids per plant in ND.

Soybean Aphids Low

The IPM Survey and other field reports on soybean aphid counts are low, about 10% of plants in field infested and an average of <10 aphids per plant in ND. The soybean survey in Minnesota reported a higher percentage of plant infested, range of 0-100%; however, aphids per plant were still low <40 aphids per plant (Source: Phil Glogoza, UMN). It is still early for soybean aphid infestations in ND, so continue to be vigilant with scouting. The severe thunderstorms with heavy rains and strong winds, and hot temperatures near 90 F are not ideal conditions for soybean aphid reproduction. Soybean aphids prefer 82 F for optimal reproduction. So, stay tuned for more reports.

jan 4

Janet J. Knodel

Extension Entomologist

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