228 



SUCCESSFUL FRUIT CULTURE 



until the leaves have started, when they hatch out, the 

 larvae feeding rapidly upon the young foliage and form- 

 ing a conspicuous web in the forks of the branches. 



Retnedy — The larvae may be found in their nests 



early in the morning, during wet weather, and in the 



middle of very hot sunny days, when they may be 



readily removed by drawing the web around them, 



^ placing the mass 



^^^ on the ground and 



^HB crushing with the 



^^ ifii^^^^^^^^B^ tQ ^0 this is as 



soon as they hatch 

 out, and while the 

 web is small, when 

 with a glove on the 

 hand a whole col- 

 ony may be crushed 

 with the fingers. 

 During the winter, 

 when pruning, by 

 looking upward 

 with the twigs 

 against the sky, 



Fig. 1 I9-The San Jose Scale ^^^^^ ^f ^^le clustcrs 



of eggs can be seen and removed, and all chance of 

 injury from them be avoided. 



San Jose Scale (Aspidiotus perniciosus) (Figure 

 119) — This dangerous insect, recently introduced from 

 Japan or other foreign countries, has become a most 

 destructive and troublesome pest that attacks the apple 

 and other fruit trees as well as many forest trees. It 

 has become widely disseminated throughout the coun- 

 try, and from its wonderful powers of reproduction, 

 unless checked promptly by parasites, or destroyed by 

 other means, it may seriously injure the fruit growing 



