562 



Missouri Agricultural Report. 



moth. The disc nozzles, which make a fine mist, should be used 

 for all other spraying if conditions permit. A great many experi- 

 ment station men and horticulturists advise against the use of 

 Bordeaux nozzles on the ground that more mixture is used and 

 that as even a distribution of the mixture over the surface is not 

 obtained; but under Missouri conditions, leaving the matter of 

 filling the calyx cavaties of the young fruits entirely out of the 

 question, there are many days during the spring that reasonably 

 good work may be done with Bordeaux nozzles when it is practically 

 impossible to work at all with nozzles which make a fine mist spray. 

 The greater range and penetration of Bordeaux nozzles also make 

 it possible for men working from a tower to more effectually spray 

 the inner portion of large trees which can not be conveniently 

 reached by nozzles making a fine spray, except under conditions of 

 still atmosphere. 



For spraying trees that are too 

 tall for the tops to be conveniently 

 sprayed from the ground, the outfit, 

 whether power machine or hand pump, 

 should be provided with a tower suf- 

 ficiently high to enable the nozzleman 

 to direct the spray downward into the 

 blossoms or over the trees. The work 

 on large trees will not only be more 

 thorough but also will be much more 

 easily done. t^- , • . , 



^ . Pink just showing. 



BLOSSOMS SHOWING TIME TO SPRAY. 



The most opportune time to 

 make the first spraying for apple 

 scab is just as the pink is beginning 

 to show in the bloom. The orchardist 

 who has several days spraying to 

 do, however, can not wait until that 

 time and should begin as soon as the 

 cluster buds are separating in order 

 to finish before the blossoms open. 



The second spraying for apple 

 scab is made with the first spraying 

 for codling moth and should be 

 made just after the petals have 

 fallen. 



Petals just down 



