Evaluation of Population Suppression by Irradiated Lepidoptera and their Progeny


To move transgenic insect technology from the laboratory gradually towards the field for the eventual management of insect pests through the improvement of the Sterile Insect Technique.


To assess the potential of controlling populations of Lepidoptera pests by releasing irradiated moths and/or their progeny.


Baseline data on field populations of Lepidoptera pests are collected. Field releases of moths given sub-sterilizing doses of radiation are carried out and their impact in suppressing target pests are assessed, partially in combination with augmentative releases of natural enemies. Special attention is paid to field behavior of released moths, as well as the development of techniques to assess suppression of native populations. The lepidoptera pests considered under this CRP include the Diamondback Moth (Plutella xylostella), the Cotton Bollworm (Helicoverpa armigara), the Pink Bollworm (Pectinophora gossypella), the Codling Moth (Cydia pomonella), the Oriental Fruit Moth (Grapholitha molesta), the Tobacco Caterpillar (Spodoptera litura), the Jute Hairy Caterpillar (Spilosoma obliqua), the Fall Armyworm (Spodoptera frugiperda), the European Corn Borer (Ostrinia nubilalis), the Asian Cornborer (Ostrinia furnacalis), the Rice Stemborer (Chilo suppressalis), the Carob Moth (Ectomyelois ceratoniae) and the Sugarcane Borer (Diatrea saccharalis).


Nineteen Contract Holders from Bangladesh, Brazil, Bulgaria, China (3), Czech Republic, India, Indonesia, Iran, Mauritius, Myanmar, Pakistan, Philippines, Romania, Syria, Tunisia and Viet Nam (2); two Agreement Holders from Russia Federation and USA.


  • The final Evaluation Report summarizes achievements under this six-year CRP (1993-1998). [pdf]
  • Proceedings of a final Research Coordination Meeting. Penang, Malaysia, 28 May - 2 June 1998. [Download pdf]