174 



JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 6 



trees selected were of the standard varieties, being Baldwins, Greenings^ 

 Northern Spy and Ben Davis. The diversity of season, location, 

 equipment and men, and the different varieties used for the tests 

 prevent these experiments being classed as local or exceptional. The 

 spraying was invariably given as soon as possible after the dropping 

 of the petals, special pains being taken to throw the poison down upon 

 the upturned ends of the young apples, though during the last three 

 years it was not deemed advisable to attempt to force the spray into 

 the lower calyx cavity. 



The results obtained during this period are shown in the following 

 tabulation. 



SUMMARY OF RETURNS FROM CHECK OR UNSPRAYED TREES 



