58o NEW JERSEY STATE AGRICULTURAL. 



thousands of trees. We found the orij;inal caj^e wlicre the in- 

 sects liad hecn confined, and the trees uix)n which they had I^eeri 

 first found at hu-i^e in 1903. According to the story, iiundreds 

 of specimens could he found on single trees during the summer 

 of 1903, and a great many colonies were sent out. Ahnost any- 

 w'here in the orchard specimens could Ik? li»und without ditticulty 

 and it really seemed as if the lj>eetles had made themselves at 

 home. Nevertheless, in spite of this increase in the number of 



Fig. 6. Chilocorus similis: a, beetle thrusting cgs; under a scale; b, scale 

 raised to show edge of egg beneath it; c, scale lifted, to show 

 egg under it; d, scale from beneath, showing egg; e, egg; f, 

 three eggs under a flap of bark; g, same natural size; h, i, 

 newly hatched larvae; j, same, feeding on scales; all save 

 g. nmch enlarged. From Marlatt, U. S. Dept. Agl. 



beetles, the scale had increased even faster and so serir)us was the 

 infestation by the end of 1903. that the owner sprayed with lime, 

 suli)hur and tar. The spraying was quite effective, tiiough there 

 was yet plenty of living scale and a new crop coming on Hew 

 we spent a considerable time in close search, taking tree after 

 tree and selecting especially bad examples for closer .scrutiny; but 

 not a single specimen did we find of any stage. The insects had 

 absolutely and completely disappeared from a place where, last 



