SWEETPOTATO WHITEFLY, Bemisia tabaci (Gennadius)
and GREENHOUSE WHITEFLY, Trialeuroides vaporariorum (Westwood)
Description PictureDamage
  • adults - about 1/16 inch in length
  • four wings along dorsal part of the body
  • covered with white waxy powder
  • nymphs - light green, oval, flattened and about the size of a pinhead
  • attached to leaf surfaces until they mature
  • last instar more elevated and slightly segmented

  • Photo credit: W. L. Sterling, Department of Entomology, Texas A&M University
  • feed by sucking plant juices
  • heavy feeding causes mottled leaves
  • may cause yellowing or death
  • excreted honeydew may conver lower leaves
  • black sooty mold may grow on honeydew