December, 1909.] 



THE CODLING MOTH. 



89 



enforced bath in the spray mixture, and many have given up 

 ■ spraying in despair on account of being unable to make the 

 cheap couplings hold the hose under pressure. 



Strainers. One of the most frequent causes of delay is the 

 clogging of the nozzles from sediment, dirt, etc. To obviate this, 

 when filling the sprayer strain all mixtures through a fine copper 

 strainer, Avhich may be purchased of any pump company. Have 

 the barrel of the sprayer tight, and see that it is clean before 

 starting. 



The Wagon and Tower. Ordinarily the sprayer is simply 



Fig. 21.— Wagon and tower used in the experiments ; a good type for 



the small orchard. 



placed in a wagon box in which the one spraying stands. But it 

 is essential that the spray hit the tree from above, and it is there- 

 fore necessary that the one spraying be elevated to as near the 

 center of the tree as possible. For any orchard of less than 500 

 trees, an outfit such as we have used for the past two years is 

 entirely satisfactory. This consists of a stout one-horse wagon, 

 on cultivated ground two horses are necessary, with a rough 

 tower erected at the back of the wagon, which places the one 



