TY - TH AU - Sveinhaug,T. AU - Jorgensen,M. TI - Corn stunt and maize bushy stunt disease: Population levels of the vector Dalbulus maidis (Homoptera: Cicadellidae), and incidence of the diseases in six maize varieties at four locations in Nicaragua PY - 1988/// CY - Aas (Norway) PB - Agricultural University of Norway, KW - Bioassay KW - Chemical control KW - Dalbulus KW - Elisa KW - Genomes KW - AGROVOC KW - Injurious factors KW - Mycoplasmatales KW - Mycoplasmoses KW - Nicaragua KW - Parasitism KW - Pathogenicity KW - Plant diseases KW - Varieties KW - Zea mays N1 - Thesis (M. Sc.), illustrations, tables, graphs, literature cited p. 77-84, appendix p. 84-90 ER -