Applied Sciences > Agriculture > E-217

Research Title Taxonomy of Philippine Jumping Plant-Lice (Hemiptera: Psylloidea) with Emphasis on the Immature Stages
Research Personnel Leader:
Mr. Mario V. Navasero

Research Duration Start:
1 April 2012
1 April 2013
Research Location Los Baños, Laguna
Research Description The superfamily Psylloidea or jumping plant-lice as it is commonly known is an interesting group of insects. The adults are very active and capable of leaping which is not observed in other sternorrhyncous hemipterans. Included in the Psylloidea are species injurious to food crops, ornamental plants and important forest species like the citrus psyllid, Diaphorina citri Kuwayama, ipil-ipil psyllid, Heteropsylla cubana Crawford and durian psyllid, Allocarsidara incognita Hollis, to name a few. Nymph and adult feeding may cause stunted growth, curling, twisting, rosetting and discoloration of leaves, and drying or pre-mature falling of flowers which may affect crop yield. They are also known to transmit viral and bacterial diseases (Knorr and Main Shah, 1971; Laefeche and Burot, 1972; Boror, 1957 and Kaloostian, et al., 1957). Correct identification of psylloids and their natural enemies particularly of species injurious to crops are important information in the formulation of sound pest management schemes. The use of the parasitoid Tetrastichus radiatus Waterston (Eulophidae, Hymenoptera) against the citrus psyllid (Jensen, 1957) and the predator Curinus ceoroleus (Coccinellidae, Coleoptera) against the ipil-ipil psyllid (Baltazar, 1992) are classic examples. The project hopes to contribute to greater understanding of the diversity of local psylloid fauna and provide basic information on their taxonomy and biology including their natural enemies. This information will be made available in the form of scientific and semi-technical publications like journal articles and field guide or hand book. A reference collection will be established because type materials described by foreign workers were deposited in museums abroad while the type materials of Uichanco were destroyed during the war. This reference collection will be of great assistance to researchers, the public and other interested individuals.
Research Objectives The scope of the work will cover other areas that had not been done particularly on the taxonomy of the immature stages, investigation on the wax secreting organs through the electron microscopy and collection of associated natural enemies.
Research Beneficiary(ies) Students in agriculture, teachers and researchers in the field of crop protection
Research Accoplishments Collection in Bukidnon and North Cotabato yielded seven materials of which, three species are not yet represented in previous collections, 50 out of 120 materials were properly preserved, photo documentation of host plants, nature of damage, adults and immature youngs of five economically important species. Continue photo documentation of host plants, nature of damage, adults and immature youngs of five economically important species
Total Research Cost
Research Agencies Funding:
UP Los Baños

Research Budget Breakdown Year:
Year Funded:
Total Cost
Date Released
Amount Released

Code E-217
KRA Code Poverty Reduction and Empowerment of the Poor
Priority Thrust DOST
Create growth in the Countryside

Sector Applied Sciences
Actual Sector Agriculture
Related sectors Biology, Ecology
Entry revision: January 2021