14 



THE KEPUirr OF THE 



No. 36 



Insects Attacking Fruit Crops. 



The x\ppLE Maggot (Rhagoletis poinonella) (Fig. 4). I regret to report 

 that on Aug. 1!», while examining Codling Moth injury in a small crab apple 

 orchard on the i)ut^;kirts of Ottawa, I saw within a few inches of the apple I had 

 hold of an adult of the Apple Maggot. It was resting on a leaf, and after examin- 

 ing it closely I attempted to catch it with my hand but failed. Several days pre- 

 vious to the above date Mr, E. W. Calvert, who was working temporarily in the 

 Division, reported to me that he had seen in the Arboretum of the Farm a fly which 

 he took to be that of the Apple Maggot. As yet no injury by the larvse of this fly 

 has been detected in Ottawa. 



Fig. 4. — Fruit Injured by tlae Apple Maggot. 



Orchardists in the district should watch closely for indications of the pre- 

 sence of this extremely destructive insect, and, if found, report any occurrence at 

 once to the Division of Entomology, Central Experimental Farm. 



Fig. 5. — American Tent Caterpillars on their web; c, egg-bracelet; d, cocoon. 



