122 



covered 180 trees when two certain men were directing tlw 

 nozzle. AMien another man took the place of one of these 

 men, 125 gallons of mixture was sufficient for 250 trees, 

 while the time required remained the same. It is ([uite true 

 that the figures 1 have given represent only one instance 

 and will not be the same under all conditions, but, neverthe- 

 less they serve to show how important the regulation of the 

 nozzle may be to the practical fruit grower. The length of 

 time, during which a certain application should be made, is 

 usually quite limited and, therefore, anything that can be 

 done to save time is of great value. We have found two 

 tj'pes of nozzles very satisfactory for our work; one repre- 

 sented l)y the Simplex and the other represented by the 

 Blizzard. 



Other factors that influence thoroughness of applicatioi* 

 are, kind of labor, weather conditions and condition of trees 

 The best equipment l)ecomes inefficient in the hands of care- 

 less men who are anxious to get over the orchard in a hurry 

 and complete as soon as possible a job that is to them very 

 disagreealile. Lack of personal supervision of, or participa- 

 tion in, the actual spraying operations is quite often respon- 

 sible for poor results. The condition of the weather, 

 particularly the velocity and direction of the wind has a di- 

 rect influence on thoroughness of application. It is possible, 

 but not alwa>*s practical to spray when the velocity of the 

 wind is very high. We find it possible, and often necessary, 

 to spray when the wind is very high, but our results are not 

 as satisfactory and, of course, the amount of material wasted 

 is much greater than when the work can be done in moderate 

 weather. We try to take advantage of the change in the 

 direction of the wind on different days in order that Ave may 

 spray from at least two sides with the wind, i. e. on large 

 apple trees not peach. The last, but not by any means the. 

 least important factor that I am going to mention as infh"*.- 

 encing thoroughness of ap])lication, is that of condition of 

 trees. I do not know just wliat the situation is in IMassaclui- 

 setts. but T do know that in New Jersey we have thousands 



