450 OHIO EXPERIMENT STATION: BULLETIN 214 
Fig. 99, Tomato fruits with browned and diseased spots in them. 
This form of disease results from Fusarium Wilt of the plants; also 
probably from Bacterial Wilt. From a photograph by T. F. Manns. 
The symptoms of this wilt are rather characteristic. It may attack plants 
either vigorous or of slow development. Commonly the first symptom noticed is 
the yellowing and drying up of the lower leaves. Soon dark areas appear in 
the stem and also in the fruits. At all stages cross sections show darkening of 
vessels. The roots become darkened and watery in the region of the vessels. 
Eventually the top of the plant wilts and the leaves die both above and below, 
while the fruit has become worthless. We believe this to be a soil infesting dis- 
ease that should be controlled by thorough soil sterilization. 
WY 
Se 
bi 
a 
Fig. 100. Similar fruits of green tomatoes spotted by effects of blight in Station greenhouses — 
in 1895, From Bulletin No, 73. 
