Insects and Fungi Attacking Trees, Etc. 339 



Remedy. The application of kerosene emulsion with 

 force enough to drive it under the curled leaf is the most 

 satisfactory remedy. Strong tobacco water is also effectual 

 in its destruction, On small trees and shrubs, where the 



FIG. 187. Oyster-shell Scale. 

 (Howard: "Year Book," Dept. Agr., 1894, P- 257, Fig. 26.) 



branches can be bent down, dipping the ends into the 

 emulsion would be most satisfactory, or the strong solution 

 may be applied with a soft paint-brush. If only a few of the 

 leaves are curled up these may be picked off and burned or 

 otherwise destroyed before spraying. 



