September, 1955 
lowed with a description of the several 
kinds of symptoms and considered them as 
expressions of the same disease. 
Magie & Miller (1948) referred to the 
Fusarium corm rot and yellows disease. 
In a later article the same authors (1949) 
used the name Fusarium brown rot. Magie 
(1950) used the names Fusarium yellows 
and Fusarium corm rot but referred to 
them as designating a single disease. He 
ForsBerG: FUSARIUM DISEASE OF GLADIOLUS 
449 
applied the term ‘‘yellows symptoms” to 
the leaf symptoms and vascular discolora- 
ton but not to the corm rot phase of the 
disease. 
SYMPTOMATOLOGY 
Symptoms of the Fusarium disease are 
produced on foliage, corms, and roots. De- 
tailed descriptions of symptoms associated 
Fig. 1—Above: lengthwise sections of gladiolus corms showing, 4, how the brown rot form 
of the Fusarium disease progresses from the mother corm to the daughter corm; B and C, how 
the vascular form progresses from the mother corms into the core and vascular tissues of the 
daughter corms. Below: sections of six older corms showing rotted cores and discolored vascular 
streaks associated with the vascular form of the disease. 
