54 



INJURIOUS INSECTS OE 1903. 



Bark rough, with mussel-shaped scales. 



OYSTER-SHELL BARK-LOUSE. 



\9 



Fig. 23. — Mylihi^fi'. ponwrum, Bouche. a, female scale, from beneath, filled with eggs; 

 b, same from above; c, twig infested by female scales; d, male scale, and a twig 

 infested therewith. After Div. of Entomology, Dep. of Agriculture. 



Remedies: Same as above. 



Bark scurfy with white scales. 



SCURFY BARK-LOUSE. 



Fig. 24. — Scurfy Bark Louse. 

 Remedies: Same as preceding. 



