greenbugs

/ɡriːnbʌɡz/
noun
  1. Small, green aphids (insects) that feed on plants, especially cereal crops like wheat and barley, and can cause damage to agriculture.
    • The farmer sprayed the field to protect his wheat from greenbugs.
    • We found greenbugs on the underside of the leaves in the garden.
    • Greenbugs can multiply quickly and ruin an entire crop if not controlled.