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Field Crop Alert Staff
Soybean aphid information
Soybean rust information
Vol. 22, No. 10, June 14, 2007
 
Check April-planted beans for soybean aphid now
Christina DiFonzo, Entomology
   
Soy field growth Soy field growth.
Size of plants in the field, June 8th.
Soy field growth Soy field growth
Undersides of the leaves.

Early (April) planted soybean field south of Gera, Michigan. On June 8 (date these pictures were taken) field averaged 70 plus soybean aphid per plant. As of this morning on June 11, the population was 250 plus per plant, with an individual high of 600 plus on a single plant. Few or no biocontrol agents in the field.
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The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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