Vis LESSONS IN AGRICULTURE 



linds that the scale has almost completely covered his 

 fruit trees, is promptly to cut down and burn the trees 

 that are in a dying condition. If taken in time there 

 are several insecticides that may be successfully used. 

 There are a number of reliable firms that put up ready 



Ci,iirtc*y of W. E. Rumrj/ 



Fio. 61. A. OYSTER SHELL SCALE. B. SCURFY SCALE, c. SAN JOSE 



SCALE 



mixed preparations, such as the lime-sulphur solutions, 

 whale-oil soaps, and the miscible oils, and where only a 

 few trees are to be sprayed, it is best to buy the ready- 

 made mixtures. Full and easily followed directions for 

 use accompany the materials. 



