Phytopathological and physiological diseases of sugar beet during the vegetation period

alternaria bacillus bacteriose bacterioses bacteriosis beta vulgaris control de enfermedades disease control disease transmission enfermedades fungosas erwinia erysiphe betae functional disorders fungal diseases fusarium helicobasidium maladie fongique pseudomonas symptome symptoms transmission des maladies trastornos funcionales trouble fonctionnel virose viroses virosis