VEGETABLE FORCING 55 



a house thirty-three feet wide and one hundred 

 feet long should return $1,350.00 per season, 

 or as much more as the increased price figures. 



Success in tomato growing under glass de- 

 pends largely upon the skill and care of the 

 operator. There are few insect pests to be 

 guarded against, but there are other enemies, 

 particularly nematodes, or eelworms, which are 

 very destructive. Fortunately, however, these * 

 pests are easily controlled by soil sterilization. 

 This can be accomplished in a variety of ways, 

 by forcing live steam through perforated pipes 

 buried in the soil of the benches, by using drain 

 tile for the same purpose or by using an inverted 

 pan over the area, or in still another way by 

 cooking the soil before placing it in the benches 

 in a specially prepared sterilizer. Any one of 

 these systems when well executed will be ef- 

 fective. Besides these root worms which cause 

 swellings upon the roots of the plants and in- 

 terfere with their normal functions, there are 

 other serious plant troubles to be guarded 

 against. 



The tomato blight, which is a serious disease 

 in the field under some conditions, is also a 

 menace to the house grown crop. This trouble 



*See "Garden Farming" for details of soil steriliza- 

 tion. 



