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Sentinel Plot Program in Soybean

Posted: August 21, 2012

This week’s insect and disease report for soybean - Sponsored by the PA Soybean Board.

The Pennsylvania Soybean Board is funding a Sentinel Plot Program, which is being managed by Penn State Extension and The Dept. of Entomology.  In this effort, Penn State Extension Educators are regularly scouting fifteen ‘typical’ soybean fields across the state, reporting significant populations of plant pathogens and insect pests.  For all the reports thus far, see Penn State’s Field Crop Entomology website (http://ento.psu.edu/extension/field-crops-new).  Reports from the past week indicate very mild insect and disease pressure. Pests that were found during scouting are listed with their severity, which is rated on a 1-10 scale with 10 being the highest.  Make sure you check your fields to determine your local populations, but these reports will give you a sense of what pests are active in fields.

Berks County – 17 Aug 2012

Combined report from 2 fields
Growth stage: R6 in both fields

  • Brown marmorated stink bugs becoming active and are just present on the field edges
  • Potato leafhopper active – Severity: 1
  • Green cloverworm active – Severity: 1
  • Japanese beetles active – Severity: 1
  • Grasshoppers active – Severity: 1
  • A few whiteflies present
  • Lady beetles, damsel bugs and spiders active

York County – 16 Aug 2012

Growth stage: R5.5

  • Grasshoppers active – Severity: 1
  • Downy mildew – Severity: 2
  • Cercospora leaf blight – Severity: 1
  • Septoria leaf spot – Severity: 1

Tioga County – 13 Aug 2012

Field 1
Growth stage: R5

  • Bean leaf beetles active – Severity: 1
  • Japanese beetles active – Severity: 1
  • No diseases found

Field 2
Growth stage: R5

  • Japanese beetles active – Severity: 1
  • Septoria leaf spot – Severity: 3

Field 3
Growth stage: R3

  • Japanese beetles active – Severity: 1
  • No diseases found

 

Contact Information

John Tooker
  • Extension Specialist
Phone: 814-865-7082