300 Agricultural Experiment Station, Ithaca, N. Y. 



be effectively combined witli the Bordeaux mixture then to be used 

 for the apple-scab fungus, should be made as soon as the little cases 

 are seen on the opening buds. A second, and perhaps a third, ap- 

 plication may necessary at intervals of four to seven days on badly 

 infested trees. These sprayings will also check the bud moth. 



Furthermore, it has been experimentally demonstrated in Canada 

 that a kerosene emulsion spray, applied at the same time as directed 

 above for Paris green, still more effectively checks tbe case bearer ; 

 and we believe it would act likewise on the bud moth. In pear 

 orchards, both this case bearer and the pear psylla can be effectively 

 checked by the same enmlsion spray when the leaves are opening ia 

 the spring, Never spray a fruit tree when it is in blossom. 



Rememher that success in any case will depend almost entirely 

 on how thoroughly the spraying is done. 



MAEK VERNON SLINGERLAND. 



