SPRAYING DEMONSTRATIONS. 



263 



Department of Agriculture and of the Experiment Station. Tlie plans 

 were made and the records kept by the Department and Station. The 

 work was conducted in three of the orchards by the Department alone, 

 in one by the Station alone, and in the other two by the Department and 

 Station together. W. M. Scott superintended the work for the Department 

 of Agriculture and the writer represented the Experiment Station. Other 

 men who assisted in the work were J. B. Rorer, Dudley Moulton and Val 

 Keyser of the Department and F. E. Denny of the Station. 



The Demoxstratiox Orchards. — The trees sprayed were mostly stand- 

 ard varieties of winter apples, such as Ben Davis, Winesap, Gano, Missouri 

 Pippin, Ralls Genet, and Jonathan. Some of the orchards were young 



GASOLINE rOWER SPRAYING OI'TFIT AT WORK IN THE LINCOLN 



ORCHARD. 



and others old. the age varying from twelve to twenty-six years. Some 

 of the trees were therefore rather small, while others were very large. 

 Some of the orchards were close planted, with as high as 80 trees per 

 acre, while others had not over 40 trees to the acre. The trees of some 

 of the orchards had been pruned fairly well, while those of other orchards 

 had not been pruned at all, recently, and were therefore so filled up with 

 unnecessary branches as to m_ake thorough spraying difficult. 



The Sprayed and Check Plats. — In each of the six orchards a block 

 of not less than 250 trees (in one orchard 890 trees) was laid off for the 

 spraying demonstration, and in each orchard also a block of trees was 

 left un-prayed as a check. The remainder of the orchard in each case 



