[Plant diseases, pests and weeds in Denmark 1984: 101 Annual report [general survey on plant pathology subjects from the Research Centre for Plant Protection]]

control de enfermedades control de malezas control de plagas crops cultivos disease control enfermedades de las plantas fongicide fungicidas fungicides growth inhibitors inhibidores del crecimiento lutte anti-mauvaise herbe maladie des plantes malezas mauvaise herbe organisme nuisible pest control pesticide pesticides pests plagas plaguicidas plant diseases plant protection plant viruses plante de culture protection des plantes retardateur de croissance spraying sprays virus de las plantas weed control weeds