Tondo, Josephine Espinoza A Comparative study on the susceptibility of two species and a variety of Erythrina to Erythrina Gall Wasp (Quadrastichus erythrinae K.) Josephine Espinoza Tondo - Manila University of Sto. Tomas 2008. - xii, 103p. Biological Sciences Subjects--Uniform Titles: Biological sciences LC Class. No.: T-00253