The 34th annual report on the Danish Plant Protection Service covering the period January 1, 1985 to December 31, 1985 [potato ring rot, fireblight, potato wart disease, black rust, Globodera rostochiensis, Epichoristodes acerbella, Dutch elm disease, Cacoecimorpha pronubana, inspection during active growth, market control, certificates]

allium cepa bois control de enfermedades control de plagas corynebacterium cultivos de invernadero culture de serre disease control erwinia erysiphe exportaciones exportation exports fruit crops frutales greenhouse crops importaciones importation imports leptinotarsa madera ornamental bulbs papa pest control plante ornementale bulbeuse pomme de terre potatoes puccinia quadraspidiotus synchytrium wood