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The soybean aphid, biology as observed in the Midwest

David Voegtlin
University of Illinois, Entomology

Developing colony of soybean aphid on growing tip of buckthorn, May 2003.

Colony of soybean aphid on underside of soybean leaf in mid summer.

Winged soybean aphid and nymphs on soybean in mid summer

Buckthorn growing in roadside adjacent to agricultural field.  Common site in many parts of the mid-west.

Egg laying aphid (ovipara) and eggs deposited around bud on buckthorn taken in early October.
  Return to April 29, 2004 issue New Agriculture Network.
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