Question of the Week: Hessian Fly

Last week the question was:   What is this flax seed-looking thing on the side of this wheat stem?

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This is a Hessian fly pupa.  Hessian flies can be a serious pest in wheat.  The warm winter we had this past year could have contributed to their development, though there are a number of other potential factors.  This is a good reminder to growers to use varieties with good resistance to Hessian fly.  Here is a great publication with more information.

 

Here is this week’s question:  What is growing on this corn leaf?

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