Crop & Pest Report

Accessibility


| Share

Soybean Aphids Continue Low (08/01/19)

Soybean aphids continue to be very low in ND and MN.

Soybean aphids continue to be very low in ND and MN. This is beginning to sound like a broken record but the IPM Crop Survey observed about 0-10% of plants in field infested and an average of <1 aphid per plant in ND and MN (see maps below). The pie chart map shows the proportion of plants observed by different aphid densities. If the pie chart shows mainly orange to red, this indicates those fields have more plants that are getting closer to the economic threshold of 250 aphid per plant. Thanks to Dr. Phil Glogoza, retired Extension Educator, for creating these useful pie chart maps. Maps are posted weekly on the NDSU IPM website. Please send me any field reports on soybean aphids.

ent.5

 

Janet J. Knodel

Extension Entomologist

This site is supported in part by the Crop Protection and Pest Management Program [grant no. 2017-70006-27144/accession 1013592] from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed are those of the website author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

USDA logo

Creative Commons License
Feel free to use and share this content, but please do so under the conditions of our Creative Commons license and our Rules for Use. Thanks.