ue 
SPRAYING NOTES FOR I904—-I905. 55 
To do thorough work and not waste material a fine spray 
must be obtained, and each plant must be treated long enough 
to cover its whole surface. 
MACHINERY FOR SPRAYING POTATOES. 
Early in the season, while the plants are small, almost any 
apparatus will do the work satisfactorily. The automatic horse 
power sprayers save time, but to produce sufficient power the 
machine must be driven so rapidly across the field that the 
plants are never more than partially covered with the mixture. 

Fig. 15.—Spraying potato plots. 
A better apparatus for spraying while the plants are small would 
be one that would spray several rows as the apparatus is driven 
slowly along, the pressure being furnished by steam or gas power. 
After the plants become large, automatic machinery cannot do 
perfect work. A good pump or power machine mounted on a 
wagon, with two lines of hose so that the nozzles may be di- 
rected at all sides of the plants, will do satisfactory work. 
TOMATO SPRAYING EXPERIMENTS. 
The fact that the tomato crop is reduced every year by fungi 
‘and insects is not generally appreciated. The tomato plant was 
originally a perennial. Now most varieties are usually dead or 
