REPORT OF THE SOCIETY 27 



On cherry trees planted in orchards the use of arsenical insecticides is 

 recommended, after the gathering of the fruit crop. 



When the attack is very bad and the use of insecticides has been 

 neglected, it is necessary to apply to the ground fertilizers that are readily 

 assimilated, such as 125 lbs. nitrate of soda, 200 lbs. superphosphate and 40 

 bushels wood ashes (or, when the war is over 100 lbs. of muriate of potash) 

 per acre to help the trees to recuperate. 



Bibliography 



"Insects injurious to fruits," William Saunders, Philadelphia, 1883. 



"Manual of injurious insects," E. A. Ormerod, London, 1890. 



"Le livre de la F'erme," Pierre Joigneaux, Paris, quartieme edition. 



