I 



254 Report of the Departme>;t of Entomology of thh 

 Table II. — Spring Spraying in Orchard L 



Trees. Strength 



f • s of 



Niinibor petro- 



Kind. tieaied. Age aud (Jeacription. leum. Besults. 



Per ct. 



Plum: 



Keiiie Claude. 6 Old but usually bear 25 Two dead, three seri- 



a small crop. ously injured. 



Mouarch 5 Full bearing, sound.. 25 Uninjured. 



Quackenboss. . 3 Full bearing, unusu- 25 Uninjured. 



ally vigorous. 

 Reine Claude. 4 Old but usually bear 40 Three dead, one seri- 



a small crop. ously injured. 



Monarch ..... 5 Full bearing, sound.. 40 Two sli^iitly injured, 



remainder unin- 

 jured. 

 Quackenboss.. 3 Full bearing, unusu- 40 Uninjured. 



ally vigorous. 

 Reine Claude. 4 Old but usually bear 60 All dead. 



a small crop. 



Monarch 6 Full bearing, sound.. 60 Two dead, remninder 



seriously injured. 

 Quackenboss. , 3 Full bearing, unusu- 60 Slightly injured. 



ally vigorous. 

 Pear: 



Bartlett 1 One year planted, vig- 25 Uninjured. 



orous. 



Bartlett 1 One year iilanted, vig- 1 60 Uninjured. 



orous. 

 Cherry: 



Montmorency. 2 One year planted, vig- 40 Uninjured. 



orous. 

 Montmorency. 1 One year planted, vig- 60 Uninjured. 



orous. 



Time of tests in Table III. — Winter and spring treatment. 

 Trees sprayed Dec. 24 and April 18. 



Table III. — Winter and Spring Spraying in Orchard I. 



Trees. Strength 



, > of 



XniL.ber petro- 



Kind. treated. Description. leum. Besults. 



Per ct 



Plum: 

 Quackenboss. . 3 Full bearing, unusu- 25 Uninjured. 



ally vigorous. 

 Reine Claude. 1 Old, but usually bear 40 Dead. 



a small crop. 

 Monarch 1 Full bearing, vigor- 40 Dead. 



ous. 

 Monarch 3 Full bearing, vigor- 60 Dead. 



ous. 

 Reine Claude. 2 Old, but usually beai-s 100 Dead. 



small crop. 

 Monarch 1 Full bearing, vigor- 100 Dead. 



ous. 

 Pear: 

 Bartlett 1 One year planted, vig- 40 Seriously injured. 



orous. 

 Bartlett 1 One year planted, vig- GO 



orous. Dead. 



Cherry: 



Montmorency. 3 One year planted.... 40 All seriously injured. 



