Beet powdery mildew incited by Erysiphe betae is a serious foliar fungal disease of worldwide distribution causing losses of up to 30%. In the present work, we searched for resistance in a germplasm collection of 184 genotypes of Beta vulgaris including fodder (51 genotypes), garden (60 genotypes), leaf (51 genotypes), and sugar (22 genotypes) beet types. Resistant genotypes were identified in ...

phoma and NPC (17, 22), and in lymphoid cell lines derived from such tumors (4, 21). The serological association between EBV and NPC, first established by Old et al. (18), has been strengthened by Henle et al. (12) and others (3, 5, 7, 15, 16) through use of the indirect immunoflourescence test. Virtually 100% of NPC patients have detectable antibody to EBV capsid antigen in high titer (> 1:160...

Euonymus spp. (L.) are some of the most important ornamental plants. Fungal plant pathogens of ornamental plants are the most important factors causing damage. In this research two pathogenic fungal species were isolated from naturally infected Euonymus species and identified. In order to isolation of fungi from disease tissues, the obtained samples were cultured on potato dextrose agar medium....

Cotton leafroll dwarf virus (CLRDV) is an introduced Polerovirus (Family: Solemoviridae) of cotton, Gossypium hirsutum L., in the U.S. The only vector known to transmit this cotton aphid, Aphis gossypii Glover; however, there are seven other species aphids (Hemiptera: Aphididae) reported colonize southeastern U.S.: Protaphis middletonii (Thomas), Rhopalosiphum rufiabdominale (Sasaki), craccivor...

Studies were undertaken across five field locations in Western Australia to determine the relative changes disease severity and subsequent pea yield from up four foliar pathogens associated with a complex (viz. genera Didymella, Phoma, Peronospora, Septoria) different varieties sown at three times densities. Delaying sowing of significantly (P < 0.05) reduced Ascochyta blight (all locations)...

counted for 2.5% of all non-Hodgkin’s lym phoma (NHL) in south ern Tai wan ac cord ing to our pre vi ous study. There have been only three larger se ries on PBL from Tai wan. Huang et al re ported seven cases in 1987, with em pha ses on the pro tean clin i cal and ra dio log i cal man i fes ta tions. There were five dif fuse histiocytic lym pho mas and one case each of dif Chi nese Med i cal Jo...

Beet necrotic yellow vein virus (BNYVV) is a member of the genus Benyvirus (21,22) and causes the disease known as rhizomania. It often is reported to be the most important sugar beet (Beta vulgaris L.) virus (17). BNYVV is transmitted by the plasmodiophorid, Polymyxa betae Keskin (1,2,6). In the United States, the virus first was identified in California in 1984 (5) but now occurs in every maj...