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Soybean Aphid Numbers Continued Low (07/26/18)

Soybean aphid numbers continued to be low in ND. However, south central Minnesota is seeing increasing populations of soybean aphids.

Soybean Aphid Numbers Continued Low

Soybean aphid numbers continued to be low in ND. However, south central Minnesota is seeing increasing populations of soybean aphids. The soybean crop is advancing fast, so this will decrease the risk of economic populations of soybean aphid developing in soybeans before the R6 (full seed set) crop stage. The IPM Survey and other field reports on soybean aphid counts are still low, about 0-29% of plants in field infested and an average of <1 aphid per plant in ND. So, stay tuned for more reports. Maps are posted weekly on the NDSU IPM website.

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Janet J. Knodel

Extension Entomologist

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