Frequent rains may have delayed alfalfa harvest but they haven't slowed the buildup of potato leafhopper populations. Potato leafhopper is a small, bright green insect that can be seen hopping out of your way as you walk in an alfalfa field. This sap-sucking insect can cut alfalfa yields in half and even kill seedlings when populations are high and left unmanaged. The primary cause of yield loss is shorter or stunted stems; however, leaf yellowing or hopperburn is the telltale symptom of this pest.
Iowa State University
Lefko, Stephen Alan, "A great year for potato leafhopper" (1998). Integrated Crop Management News. 2291.
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