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The parasitic wasp Lysiphlebus is the most important biocontrol agent of the greenbug in wheat. Mummies produced by Lysiphlebus from the aphid it killed are either tan or brown depending on which species of aphid it parasitized. Tan mummies are formed from greenbugs while brown mummies are formed from bird cherry-oat aphids. This parasitoid can be effective at maintaining greenbug infestations below economically damaging levels. Researchers at OSU and USDA-ARS have recently determined thresholds for parasitism that lead to successful control of greenbug infestations in wheat fields in Oklahoma.


 

 

 

 

 

 

 

 

THIS INTEGRATED PEST MANAGEMENT SOFTWARE IS BASED ON EMPIRICAL DATA OBTAINED THROUGH MANY YEARS OF RESEARCH. HOWEVER, NEITHER THE USDA, OKLAHOMA STATE UNIVERSITY, OR SST DEVELOPMENT GROUP, INC. WARRANT THE VALIDITY OF THE INTEGRATED PEST MANAGEMENT SOFTWARE AND MAKE NO REPRESENTATIONS WHATSOEVER WITH REGARD TO THE USE OF THE SOFTWARE FOR PEST MANAGEMENT. FURTHER, USDA, OKLAHOMA STATE UNIVERSITY AND SST DEVELOPMENT GROUP, INC MAKE NO WARRANTIES AS TO THE MERCHANTABILITY OR FITNESS OF THE INTEGRATED PEST MANAGEMENT SOFTWARE FOR ANY PARTICULAR PURPOSE, OR ANY OTHER WARRANTIES EXPRESS OR IMPLIED. If you have any questions concerning this site please contact Tom Royer at Tom.Royer@okstate.edu

  Parasitic Wasps

Click to enlarge

Above: Parasite lifecycle, click on picture to enlarge.

 

Above: Photograph of adult parasite.

 

 

Above: Photograph of greenbugs and mummies.