1913 



ENTOMOLOGICAL SOCIETY. 



73 



especially Duchess apples. The Green Aphis {Aphis pomi) was very plentiful, 

 especially on nursery stock, and suckers. Some of the people sprayed with arsenicals 

 to control it. It caused discoloration of Yellow Transparents by little red spots 

 forming. The leaves of some maple trees were falling about the middle of August 

 because of aphis injury. Buffalo Tree Hoppers, Snowy Tree Crickets, Blister 

 Beetles, and Flea-beetles were fairly common. The foliage on a few plum trees 

 was very badly distorted by numerous finger-like galls caused by Eriophyes sp. 



The bees in this district were found to be suffering very badly from European 

 Foul brood (Bacillus alvei). Grasshoppers and Potato Beetles were not 

 very plentiful. The Apple Leaf Miner (Tischeria malifoliella) was ex- 

 tremely prevalent in some orchards. Grape vines and Virginia creeper were very 

 badly attacked by leaf-hoppers (Typhlocyha comes). They lost the greater portion 

 of their foliage very early owing to these insects. Both apple-tree borers (Saperda 

 Candida and Clirysohothris femorata) were present in considerable numbers. Stink 

 Bugs (Pentatomidae) were common and the Tarnished Plant Bug (Lygus 

 pratensis) appeared in large numbers, especially in the hoed crops, la'te in the 

 season. 



Fig. 19. — Flat-headed Apple 

 Tree Borer {Chrysobothris 

 femorata) ; a, larva; &, 

 pupa; d, adult. 



Fig. 



20. — Apple Curculio. 



Tlie four most important insects in this district were the Apple Maggot, or 

 Eailroad Worm {Rhagoletis pomoneUa), Codling Moth {Carpocapsa pomonella), 

 Plum Curculio (Conotrachelus nenuphar) and the Apple Curculio (Anthonomus 

 quadrigibhus) , and they rank in that order as to injury. 



The Apple Maggot was most injurious on Tolman's Sweot, Alexander, and 

 Lowland Easpberry. Mr. E. W. Sheppard, Como, P.Q., reports severe injury, due 

 to this insect. Mr. Eoss has worked especially on this insect and I leave him to 

 describe it in detail. The Codling Moth was plentiful, and it has received Mr. 

 Caesar's careful attention, I leave any questions about it for him to answer. The 

 most injurious insects are the curculios. In some cases this year the fruit could 

 not be sold, because it was so badly disorted. Plums, apples, and pears were 

 badly affected. The plum curculio was the more injurious one on Duchess. 



The Apple Curculio Anihonomus quadrigibhus, however, is the more import- 

 ant of the two in this distict, and is the most injurious insect in the vicinity of 

 Covey Hill. So far as I could find out, it has received very little attention, and 

 is reported in books and bulletins as ''sometimes injurious." However, in this 

 district it is deserving of a thorough investigation. It was reported by Mr. N. E. 

 Jack, Chateauguay Basin, P.Q., as very injurious to early apples. 



