226 Report of the Horticulturist of the 



eoated with the minute particles and yet be almost unnoticed by 

 the casual observer. 



The best work cannot be done with a nozzle that throws a 

 coarse spray, or by drenching the trees till the particles collect 

 in drops on the leaves and branches and fall to the ground. 



Each season brings its array of new and modified forms of 

 nozzles, but for our work w^e have yet to find any nozzle that 

 is as satisfactory as the Vermorel^ providing that it is of the 

 right pattern. Various forms are on the market, but those that 

 have no joint between the nozzle chamber and elbow, are a 

 source of annoyance, as the best of them sometimes become 

 clogged in the elbow, and where there is no joint it is next to 

 impossible to reach the obstruction. Vermorels that are not 

 open to objection are illustrated in Figures 13 and 14. 



The Vermorel produces a very fine mist-like spray, which it 

 can throw but a very few feet beyond its orifice. Therefore 

 where very tall trees are to be sprayed it may be necessary to 

 use a nozzle that will throw a spray to a greater distance. The 

 McGowen nozzle is quite satisfactory for such work. In any ease 

 it will be seen that where trees are to be sprayed the Vermorel 

 nozzle must be lifted up among the branches. The bamboo ex- 

 tension was devised for this purpose. 



Double discharge nozzles. — For most spraying it is most advan- 

 tageous to use more than one nozzle on a single line of hose, as 

 the work can be done much quicker than when only one nozzle 

 is used. Various forms of connections are manufactured for this 

 purpose. Triple connections are also used where it is desired to 

 use three nozzles on the same hose. 



Bamboo extension. — This consists of a three-eighths inch brass 

 tube inside of a bamboo pole. At the lower end of the tube is 

 a stop-cock and hose connection, while the nozzle is attached to 

 the upper end. iSeveral other methods of elevating the nozzle 

 are used, such as the use of small iron or galvanized pipe, but this 

 form is mentioned in particular for the reason that it is light 

 and convenient to handle. Extensions may be made of any con- 

 renient length. 



