Pest of the Month July 2012 – Plumeria Stem Borer (Lagocheirus undatus)

i)       Hosts: Plumeria spp.

ii)      Symptoms: Small hole(s) in the side of the stem with black ooze dripping out, shriveled stems

iii)    Control: Prune the affected branch from the plant and destroy completely.  Insecticides are ineffective.


  1. Plumeria, University of Hawaii at Manoa, College of Tropical Agriculture and Human Resources, Cooperative Extension Service, Ornamental Flowers OF-24, February 1998.
  2. Pests and Diseases: Symptoms and Solutions for Plumeria, The Plumeria Society of America, Inc., Plumeria Care Bulletin, Vol. 1 No. 2, September 1991.

    Plumeria borer. Photo by Forest & Kim Starr.