Feromoner og feller som ledd i integrert bekjempelse av granbarkbillen : noen resultater fra barkbilleaksjonen i Norge i 1979 og 1980 = Pheromones and traps as part of an integrated control of the spruce bark beetle : some results from a control program in Norway in 1979 and 1980 = Pheromones and traps as part of an
Alf Bakke
Bok Bokmål 1981