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dirty, disreputable appearance. We believe this in- 

 sect robs the plants of their sap ; but even if the few 

 practical men of former times were correct who would 

 not admit these vermin caused any serious injury to 

 the pine plant, yet still every gardener will allow that 

 the treatment the plants necessarily have endured to 

 cause them to be so infected must be highly injurious 

 to their size and quality. According to our estimate^ 

 however, those plants in a robust, healthy condition^ 

 being never infected with such pest, those cannot be 

 termed free from disease that are in a lean, narrow- 

 leaved^ invermiated condition, and consequently full 

 of punctures and small ulcers. 



That white scale is the kind of insect most com- 

 monly met with. It may be readily known by the 

 most inexperienced. It exists in small white patches 

 or spangles on the surface of the leaf, appearing 

 glued, as it were, to the epidermis. Its depreda- 

 tions are not confined to the surface ; the parenchyma 

 soon suffers, and not only a derangement of the tissue 

 ensues, but the very life-blood of the plant — the true 

 elaborated sap — is progressively exhausted ; and if 

 tolerable fruit is produced in spite of its depreda- 

 tions, it merely proves that there has been a good 

 root action to support such a waste, and that -the fruit 

 would have been much finer had the ravages been 

 prevented in proper time. 



About three distinct operations are practised by 



