EXPERIMENT STATION REPORT. 577 



Mr. Dickersoii might have added that much also depended upon 

 the position taken by the agi-icuhural paper which was locally the 

 favorite. 



With the realization of the necessity for thorrnigh work comes a 

 modiiication of practice in other respects. In the case of large 

 apple trees, especially, it is difficult to reach the higher branches 

 with the spraying outfit possessed by the average farmer. As a 

 result these branches have been cut back in some instances, the 

 owner feeling that he would rather do this and spray the rest of 

 the tree thoroughly than to leave the top poorly sprayed and more 

 or less infested with live scales. Another tendency in the case of 

 baddy infested trees is to cut back severely and to treat what re- 

 mains vei'y thoroughly. 



And this leads to a consideration of the outfits used. In the 

 majority of cases it is a barrel pump with one or two leads of hose, 

 and extension poles carrying one, two or three nozzles. The Mistry 

 or Vermorel type is generally preferred to the Seneca or Bordeaux 

 type, the former being almost exclusively used by those who prefer 

 the oil sprays. There are quite a number of power sprayers, how- 

 ever, of one kind or another. The ^'Niagara" is well represented 

 and has the advantage of being very easy to operate, giving plenty 

 of power and a great uniformity of pressure. Most of those using 

 it seem to feel satisfied, but some consider that the price of the gas 

 makes it too expensive. Other growers are using gasoline engines, 

 and where there are large trees, or a sufficient number of them, such 

 an outfit seems advisable, and has the advantage of furnishing 

 power for other farm pui^oses. As a matter of fact, there are 

 several instances where engines of greater power than was actually 

 needed for spraying were purchased that they might be utilized in 

 other ways. There are a few geared machines in use, and these 

 serve well enough for medium-sized or small trees set apart, but 

 where large trees are to be treated, or much spraying is to be done 

 from one point without driving, it is not altogether satisfactoi-y, 

 and the auxiliary hand pump which usually accompanies such an 

 outfit must be brought intO' play. 



Mr. Dickerson says further, as a conclusion, that it will be seen 

 from what has been observed that good results have been obtained 

 and failures made with each of the mixtures. In considering these 

 results and comparing the mixtures, all the factors must be taken 



37 



