. Bulletin. Plant diseases -- United States. 168 PEACH LEAF CUEL: ITS NATURE AND Fig. 1.—Cytliine nozzle, with, direct disc-harge and degurger, for thin sprays. hardware dealci- in the United States. The San Jose nozzle is also obtainable through hardware dealers generally. There are many types and stjdes of cyclone nozzles. Some are planned to throw the spray away from the workman, with direct or forward discharge (fig. 1). Others are so constructed that the spray is discharged laterally or at a more or less acute angle (figs. 2 and 3). In using these nozzles for winter work on de
. Bulletin. Plant diseases -- United States. 168 PEACH LEAF CUEL: ITS NATURE AND Fig. 1.—Cytliine nozzle, with, direct disc-harge and degurger, for thin sprays. hardware dealci- in the United States. The San Jose nozzle is also obtainable through hardware dealers generally. There are many types and stjdes of cyclone nozzles. Some are planned to throw the spray away from the workman, with direct or forward discharge (fig. 1). Others are so constructed that the spray is discharged laterally or at a more or less acute angle (figs. 2 and 3). In using these nozzles for winter work on deciduous trees it has been found that most thorough and most satisfactory work can be done with less waste of spray when nozzles having a lateral discharge are employed. The reasons for this are evident. Dormant deciduous trees are but a skeleton or framework, presenting to the sprayer but a limited surface for stopping a direct spray. For this reason, where a nozzle hay- ing a direct discharge is employed, a large portion of the spray will of necessity pass through the limbs of the tree and fall upon the ground, while at best it will pass through the tree but once. By using the cyclone nozzle with lateral discharge, however, the cone of spray may he directed upward through the whole top, and in falling back it-passes through the tree a second time. Here is a decided gain in the linil) surface which will be reached by the use of a given amount of spray. The nozzle having lateral discharge can also be handled to much greater advantage than the nozzle with direct discharge. By turning the extension pipe which bears the nozzle, the cone of spray may be directed upward, downward, or laterally upon the limbs as desired. This has proven of great advantage in doing thorough work. The ordinary lateral discharge cyclone nozzles lire suitable for use with most of the copper sprays. For use with the sulphur sprays or Bordeaux mixture containing a large amount of lime, the common Vermorel
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