PESTS OF CASTOR :: Minor Pests :: Leaf Hopper

10.  Leaf hopper: Empoasca flavescens (Cicadellidae: Hemiptera)

Damage symptoms: Nymphs and adults suck the sap from the under surface of the leaves and cause “hopper burn”.  Leaves become crinkled and cup shaped.

Bionomics: Adult is green, wedge shaped hopper.  It lays eggs within the leaf veins.  A female lays 15-37 eggs during an oviposition period of 5-7 days.  The egg period is 7-8 days.  The nymphal period is 9 days.