no 



THE APPLE LEAF HOPPER 



CURTIS SCALE, 



Aspidiotiis ostrcaeformis. 



Fig. 52. Curtis Scale. Original. 



The accompanying illustration shows very well the appearance of 

 this scale, (believed to be Curtis Scale) which was submitted to us 

 during the summer of 1908 by the forester of the Minneapolis Park 

 Board, he being under the impression that it was the much dreaded 

 San Jose Scale. The presence of the hitter is recorded in Wisconsin 

 and South Dakota, therefore Minnesota nurserymen and orchardists 

 should be on the zcatch for this pest. 



Fig. 63. San 

 Jose Scale, a, 

 infested twig, 

 natural size; 

 h, bark with 

 different sta- 

 ges of scale, 

 much enlarg- 

 ed. Bureau 

 Entomology, 

 U. S. Dept. 

 Agriculture. 



General remedies for scale insects are given below. 



