138 TOMATO CULTURE 



market. For larger fields it will be necessary to em- 

 ploy a barrel sprayer. This consists of a hand-pump 

 mounted in a barrel or tank and equipped with two 

 leads of y% inch hose 25 feet long, each with a four- foot 

 extension made from J4 mcn g as pip e > an d a double 

 Vermorel nozzle. The barrel should be carried in an 

 ordinary farm wagon. Three men do the work. One 

 is expected to drive and pump, while the other two 

 manipulate the nozzles. The outfit is stopped while 

 the plants within reach are sprayed, then driven for- 

 ward about 30 feet and stopped again. On an average 

 in actual field practice 3 to 4 acres a day can be 

 sprayed in this way, applying 100 to 200 gallons of 

 Bordeaux per acre. To keep the long hose off the 

 plants two poles about 10 feet long may be pivoted to 

 the bed of the wagon so as to swing at an angle over 

 the wheel and carry the hose. The pump for this out- 

 fit should be of good capacity, with brass valves. A 

 "Y" shut-off discharge connection on the pump is a 

 convenience for stopping the spray at any time. The 

 most satisfactory nozzles are those of the Vermorel 

 type. It is cheapest in the long run to buy the best 

 grades of pumps on the market. This outfit is excel- 

 lently adapted for spraying small fields of potatoes and 

 for general orchard work, and is invaluable on the 

 average farm. 



Phytoptosis. This disease is known to occur only 

 in Florida, where it is sometimes common enough to 

 require remedial treatment. The affected portions of 

 the foliage are more or less distorted and covered with 

 an ashy white fuzz. The general vigor and fruitful- 

 ness of the plants are greatly reduced. The name 



