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EXPERIMENT STATION BULLETIN. 



SUMMARY OF RESULTS OF EXPERIMENTS WITH PEACHES 



Dusting to Control Leaf-Curl. Peach trees were dusted with Niagara 

 Soluble Sulphur (for dusting) and 00-10 mixture of sulphur and lead 

 arsenate. Neither of these materials controlled leaf-curl. The condi- 

 tion of dusted trees was only, slightly better than of check trees! The 

 check trees were practically defoliated. 



Magnesium Arsenate on Peaches. Magnesium arsenate was used, 

 both with and without lime and with self-boiled lime-sulphur. One 

 plot was sprayed with lead arsenate and there was practically no foliage 

 injury. Magnesium arsenate without lime caused very severe injury 

 and defoliation. Where used with lime or self -boiled lime-sulphur the 

 injury was severe but not so bad as where used alone. 



FIG. 14. SULPHUR INJURY ON PEACH. Such injury is occasionally found on dusted tree's. 

 It occurs only when a heavy coating of sulphur is deposited on fruit exposed directly to the sun. 

 The skin turns black and cracks open if the injury is severe. 



