Natürliche Feinde des Goldafters,Euproctis chrysorrhoea L., im Gebiet von Kosovo,FSR Jugoslawien

Summary Natural enemies of Euproctis chrysorrhoea in orchards in YugoslaviaDuring an outbreak ofEuproctis chrysorrhoea in orchards near Kosovo, Yugoslavia, several parasites (Larvaevoridae and Ichneumonidae especiallyApanteles), predators (Coleoptera of the generaCantharis andMalachius) as well as a protozoic disease were observed attacking the pest. The disease agent was recognized to be a new species:Nosema kovaevii sp. n. (Microsporidia). The cycle of development of the new species is described. Opposite to related species the spores ofN. kovaevii show a great variety in length.