Fecha de publicación: 17/08/2011 Fuente: WIPO "apis mellifera" The present invention relates to a method for the production of a gene encoded molecule in an arthropod in vivo, wherein a nucleic acid comprising a gene encoding said molecule is fed to the arthropod. Furthermore, the present invention relates to a method for the delivery of a purified nucleic acid to arthropod cells in vivo, wherein the purified nucleic acid is fed to the arthropod.