ANALYSES OF BIBLIOGRAPHIES ON BIOCONTROL

In 1967, Martyn published his interesting results on tests of abstract journals. He quoted the handbook of Debach (editor) as a source for a large bibliography on biocontrol. It can be seen from the paper of Rothman that in recent environmental research, biocontrol (the destruction of pests and weeds by natural enemies and diseases and other unconventional methods) has increased continuously. To survey the trends in this field of research several analyses of special bibliographies were carried out. In brief, I would like to give here an example of my own work, thus supplementing the paper of Martyn concerning this special point (Debach).