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SUCCESSFUL FRUIT CULTURE 



the under side of a mature insect with the numerous 

 eggs; &, same from above; c, twig infested by female 

 scales ; d, male scale, and e, twig infested therewith. It 

 generally attacks weak trees and often destroys them. 



Remedy It may be destroyed while the trees are 

 dormant by brushing over with linseed oil, by the use 



Fig. 117 Oyster Shell Bark Louse 



of fifteen to twenty per cent mechanical solution of kero- 

 sene oil, or by a strong solution of whale-oil soap, 

 two pounds to one gallon of water; or, after the 

 leaves have unfolded, with a ten per cent solution of 

 kerosene when the young are moving about, which is 

 generally during the early part of June. As when used 



