122 



With boiled fish-oil-soap emidsion in 4-4-50 Bordeaux 



Peach Same as on p. 121 



Pear V/i of leaves slightly burned 



Walnut Same as on p. 121 



Maple 25% of leaves injured 



With cold-mixed Bordeaux-oil emulsion 



Peach Same as on p. 121 



Pear 90% of leaves burned, 15% severely, 8% 



killed 



Tomato 10% of leaves partly blackened 



Rose 50%. of leaves burned 



Walnut Same as on p. 121 



Maple 10% of leaves burned severely 



During the summer of 1924 the following sprays were confined to 

 apple, cherry, grape, peach, plum, potato, and tomato. 



Boiled fish-oil-soap emulsion alone, 1% and 2% with paraffin 



oil of 90-100 viscosity. 

 Boiled fish-oil-soap emulsion, plus Bordeaux 4-6-50. 

 Boiled fish-oil-soap emulsion, plus Bordeaux 4-6-50, and ar- 

 senate of lead 2-50. 

 All the above repeated, using a paraffin oil of 212-220 viscosity. 

 Calcium caseinate cold-mixed emulsion, 1% and 2% with oil of 



90-100 viscosity. 

 Skim milk cold-mixed emulsion, 1% and 2% with oil of 90-100 

 viscosity. 

 The injury, listed according to plants sprayed, was as follows : 

 Apple, Cherry, Grape. . .No injury by any spray under any con- 

 dition of weather. 



Peach From 30% to 90% defoliation with 



boiled fish-oil-soap emulsion, 90 vis- 

 cosity, paraffin oil at 2% strength 

 with and without the addition of 

 Bordeaux and arsenate of lead. This 

 occurred both in hot dry weather, 

 and in cooler, cloudy, humid weather. 

 Only slight injury with 1%. Using 

 1% with oil of 212-220 viscosity, no 

 defoliation was observed. No injury 

 with the cold-mixed emulsions. 



Plum No injury. 



Potato 2% strengths of everything except the 



milk emulsions, gave moderate to se- 

 vere burning. l^J strengths pro- 

 duced very little burning, and usually 

 none. 



