180 TOMATO. 
‘‘Varieties of tomatoes more subject to the cedema: 
those with a tendency to a very rapid and succulent 
growth are more liable to the trouble; tomatoes which 
develop a firm, woody young stem are less liable to it.” 
The most serious disease of forced tomatoes which I 
have yet encountered is what, for lack of a better name, I 
called the winter blight,* and which is the concern of 
the remainder of this chapter. This disease was first de- 
scribed in Garden and Forest in 1892.+ The disease first 
appeared in our house in the winter of 1890-91, when 
about a dozen plants were somewhat affected. At this 
time the trouble was not regarded as specific; the plants 
were old, and had borne one crop, and it was thought 
62. Winter blight of tomato. 
that they were simply worn out. In some of our exper- 
iments it became necessary to carry about a dozen plants 
over the summer, and these were introduced into the 
house when the forcing season opened the next October. 
From this stock the trouble again spread, and in six or 
eight weeks it had become serious, and there was no longer 
any doubt that we were contending with a specific disease. 
This winter blight attacks the leaves. The first indi- 
*In Bulletin 43, Cornell Exp, Sta. 
+A New Disease of the Tomato, by E. G. Lodeman. Garden and 
Forest, v. 175 (Apr. 13, 1892). 
