123 Agricultural Experiment Station, Ithaca, N. Y. 



Results of spraying. — All who sprayed with the kerosene emul- 

 sion (diluted with 4 parts of water) according to the directions given 

 in Bulletin 83, report general success. There is no longer any 

 question about its killing the scales hit by it. 



During the summer we saw infested trees that had been sprayed 

 with different substances to kill the young scales then on the leaves. 

 Some of the scales had been killed, but as it was evident that a great 

 majority, over 75 per cent., were uninjured, the applications were 

 far from a success. The liquids had also injured the bloom on what 

 little fruit there was. What results we saw fully confirmed our 

 opinion, expressed in Bulletin 83, that the insect cannot be effect- 

 ually and practicably checked by sprays while it is on the leaves 

 during the summer and early fall. 



Spray infested trees once after the leaves fall in autumn, and at 

 least twice in the spring before the buds open. Use kerosene 

 emulsion diluted four times, and the application cannot be done too 

 thoroughly ; each little scale must be hit. 



MARK VERNON SLINGERLAND. 



