Development of Mass Rearing for New World (Anastrepha) and Asian (Bactrocera) Fruit Fly Pests in Support of Sterile Insect Technique (SIT)


The overall objective is to develop and improve rearing technology for selected Anastrepha and Bactrocera fruit flies of economic importance for SIT application.


Fruit flies are of major economic importance in nearly all tropical, subtropical and some temperate countries worldwide. In this group of fruit flies of economic importance, several polyphagous species infest a broad range of fruit and/or vegetable crops and damage their production (e.g. Medfly, Queensland fruit fly, Peach Fruit Fly, Mexican fruit fly, South American fruit fy). Other, monophagous species (e.g. olive fly) are key pests of individual crops of international importance.

The SIT is an area-wide environmentally clean technique to control insect pests. It has become an important part of most of the integrated fruit fly management programs. The high degree of sophistication in SIT technology in some programs (e.g. Medfly genetic sexing strains) encouraged interest in SIT for additional fruit fly species of major international/regional importance.

Considerable research on artificial rearing on some of these species was conducted in earlier years, but there was needed to solve specific problems of mass production for some of the species, or initiate research for those species that currently became of economic importance. Such candidate species concerted action included key Bactrocera and Anastrepha species, which are of economic importance to many FAO and IAEA Member States.

This CRP focused on twenty two tephritid fruit fly species. For some of the species there was a total lack or little knowledge about colonization and mass rearing, while for other species with ongoing SIT programs, there was a requirement and demand to improve mass rearing protocols and control processes. Thus, the focus was from basic biology studies and colonization process through the establishment/improvement of mass rearing protocols.


Seventeen Contract Holders from Argentina (2), Brazil (2), Greece, Israel, Mexico (2), Vietnam, Philippines, Kenya, Bangladesh, Mauritius, Sri-Lanka, Pakistan and USA(2) and two Agreement Holders: Australia and Italy.